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CAS No. : | 448-59-9 | MDL No. : | MFCD02093496 |
Formula : | C18H12B3F3O3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | AHYNJLHYJZXUSD-UHFFFAOYSA-N |
M.W : | 365.71 | Pubchem ID : | 2769359 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P280-P301+P312-P302+P352-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99% | Stage #1: 4-fluoroboronic acid In chloroform; ethyl acetate at 20℃; for 0.5h; Stage #2: With magnesium(II) sulfate In chloroform; ethyl acetate for 3h; | |
89% | In toluene for 24h; Reflux; Dean-Stark; Inert atmosphere; | |
40% | In toluene byproducts: H2O; azeotropic treatment; crystn. from toluene, storage over P4O10, elem. anal.; |
In benzene Heating; | ||
In neat (no solvent) thermal dehydration at 100-300 °C; | ||
In toluene Reflux; Inert atmosphere; | ||
In benzene for 2h; Inert atmosphere; Reflux; | ||
In toluene Reflux; | ||
Reflux; | ||
at 110 - 130℃; Inert atmosphere; | ||
In toluene for 6h; Azeotropic distillation; | ||
In toluene for 6h; Azeotropic distillation conditions; | ||
Heating; vacuum; | ||
In water monomer Heating; | ||
at 110 - 130℃; Inert atmosphere; | ||
at 125℃; | ||
In toluene Dean-Stark; | ||
In toluene at 140℃; for 3h; Dean-Stark; | ||
at 120℃; for 48h; | ||
In toluene for 3h; Reflux; | ||
In toluene for 2h; Reflux; Dean-Stark; | ||
at 120℃; | ||
In toluene Dean-Stark; Inert atmosphere; | ||
In toluene Dean-Stark; | ||
In toluene for 2h; Reflux; Dean-Stark; | ||
In toluene for 2h; Reflux; Inert atmosphere; Dean-Stark; | ||
at 160℃; for 16h; Inert atmosphere; | ||
In toluene for 24h; Reflux; Dean-Stark; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
63% | With water; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl In 1,4-dioxane at 40℃; for 12h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
96% | With [Rh(OH)((S)-binap)]2 at 35℃; for 3h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
91% | With potassium hydroxide; bis(ethylene)rhodium(I) chloride dimer; (1R,4R)-2,5-dibenzylbicyclo[2.2.1]hepta-2,5-diene In 1,4-dioxane at 50℃; for 1h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
67 % Chromat. | With 1,3-dichloro-5,5-dimethylhydantoin; sodium methylate In methanol; acetonitrile at 60℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
97 % Chromat. | With 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione; sodium methylate In methanol; acetonitrile at 40℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium hydroxide In 1,4-dioxane; water Heating; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Stage #1: tris(4-fluorophenyl)boroxine With diethylzinc In toluene at 60℃; for 4h; Stage #2: benzaldehyde With (S)-dendritic pyrrolidinylmethanol C116H105NO15 In toluene at -15℃; for 6h; Title compound not separated from byproducts; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
63% | With tri-tert-butyl phosphine; water In 1,4-dioxane at 100℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
52% | In 1,4-dioxane at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 84% 2: 2% | Stage #1: (3E,5E)-3.5-heptadien-2-one; tris(4-fluorophenyl)boroxine With water In toluene at 80℃; for 3h; Stage #2: With hydrogen In ethyl acetate at 20℃; for 3h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With 1,2-bis((2R,5R)-2,5-diethylphosphoranylidene)benzene; sodium t-butanolate In 1,2-dimethoxyethane; water at 100℃; for 48h; Title compound not separated from byproducts.; | ||
With bis(1,5-cyclooctadiene)nickel(0); 1,2-bis((2R,5R)-2,5-diethylphosphoranylidene)benzene; sodium t-butanolate In 1,2-dimethoxyethane; water at 100℃; for 48h; optical yield given as %ee; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99% | With lithium hydroxide In 1,2-dimethoxyethane; water at 50℃; for 1 - 3h; | This study demonstrates that base is required for the reaction and 2.0 mol % provides optimal yield of the desired conjugate addition product. During further studies to optimize the reaction conditions, a series of additives and bases were examined. Catalytic amounts of carbonate bases, Na2CO3 (2.0 mol %) or Cs2CO3 (2.0 mol %), are effective at producing high yielding conjugate additions with boronic acid 4a (Table 3, entries 6 & 8), while stoichiometric amounts (120 mol %) of carbonate bases (entries 7 & 9) attenuated reactivity. Pyridine, either catalytic or quantitative, arrests all reactivity and consistent with this observation is the lack of product with pyridine boronic acids. Additional hydroquinone shows no detectable effect upon reaction outcome while lithium salts, such as LiCl or LiBF4, either diminish the amount of product or completely arrest the reaction. The addition reaction can be run in the absence of organic solvent, however, stoichiometric base (120 mol %) is required for efficient reaction (entry 10 versus 11). This result is presumably due to the solubilization of the boronic acid into the aqueous phase by formation of the corresponding-ate complex. Preferred reaction conditions, outlined as a general procedure in the experimental section, are highly effective and facile for a range of boronic acid substrates. Using 2-cyclohexen-1-one as our conjugate acceptor, a number of different aryl boronic acids were studied with our optimized reaction conditions (Table 4). Ketone products 6a-g (entries 1-7) are afforded in high yields, with low catalyst loading (0.5 mol %) and low boronic acid equivalency (1.2 eq). Electron deficient boronic acids (entries 5-9) are afforded in excellent yields (94-99%) without any procedural modification from the earlier analogues. Improved yields (92-93%) of meta-nitro analogue 6i were achieved either by increasing the catalyst loading (2.0 mol %, entry 12) or increasing equivalencies of boronic acid (1.5 equiv, entry 13). Tri-fluoro analogues 6j and 6k (entry 14,15) were afforded in good to moderate yields (70% and 30% respectively). This is believed to be the first report of conjugate addition of a tri-halogenated aryl boronic acid. Efforts are underway to further optimize the additions of tri-fluorophenyl boronic acids 4j and 4k. Both 2,4-bis(trifluoromethyl)phenyl boronic acid and ortho-nitro phenyl boronic acid failed to produce the desired addition products under our standard conditions. The 4-, 5- or 6-indoloboronic acids (Table 5) undergo conjugate addition while N-Boc-2-indoloboronic acid (entry 1) does not afford any product. The additions of 4-indoloboronic acid (entry 2, Table 4) and o-tolyl boronic acid (entry 3, Table 4) show that ortho substitution can be tolerated, despite the attenuated reactivity observed for o-substituted boronic acids and documented difficulties of reactions with N-Boc protected pyrrole-2-boronic acids. See Lautens, M.; Mancuso, J.; Grover, H. Synthesis 2004, 12, 2006-2014. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70% | With potassium phosphate; bis(tricyclohexylphosphine)nickel(II) dichloride; water In 1,4-dioxane at 110℃; for 12h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With potassium phosphate; bis(tricyclohexylphosphine)nickel(II) dichloride; water; tricyclohexylphosphine In 1,4-dioxane at 110℃; for 12h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90% | With bis(1,5-cyclooctadiene)nickel(0); (+/-)-Et-Duphos; sodium t-butanolate In 1,2-dimethoxyethane; water at 100℃; for 48h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
79% | With bis(tricyclohexylphosphine)nickel(II) dichloride; potassium carbonate; tricyclohexylphosphine In 1,4-dioxane; water at 110℃; for 16h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | With hydroxo(1,5-cyclooctadiene)rhodium (I) dimer; triethylamine In tetrahydrofuran at 100℃; for 1h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
65% | With hydroxo(1,5-cyclooctadiene)rhodium (I) dimer; triethylamine In tetrahydrofuran at 100℃; for 4h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73% | With hydroxo(1,5-cyclooctadiene)rhodium (I) dimer; triethylamine In tetrahydrofuran at 100℃; for 2h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82% | Stage #1: octa-4,6-dien-3-one; tris(4-fluorophenyl)boroxine With [IrCl((S,S)-Me-tfb*)]2; potassium carbonate In methanol at 30℃; Stage #2: With 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran at 20℃; optical yield given as %ee; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
94% | Stage #1: 3-methylcyclohexen-2-one; tris(4-fluorophenyl)boroxine With 2C24H14F4*2HO(1-)*2Rh(1+) In 1,4-dioxane at 60℃; for 24h; Inert atmosphere; Stage #2: With water In 1,4-dioxane Inert atmosphere; optical yield given as %ee; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With potassium phosphate; bis(tricyclohexylphosphine)nickel(II) dichloride; water In 1,4-dioxane; toluene at 110℃; for 20h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
97% | Stage #1: tris(4-fluorophenyl)boroxine With diethylzinc In toluene at 60℃; for 12h; Inert atmosphere; Stage #2: 3,4-dihydro-isoquinoline 2-oxide With diethylzinc; [(1S)-1-((S)-1-methylpropyl)-(2-morpholin-4-ylethyl)]carbamic acid tert-butyl ester In dichloromethane; toluene at -30 - -20℃; for 24.25h; Inert atmosphere; Stage #3: With methanol In dichloromethane; toluene at -20℃; Inert atmosphere; optical yield given as %ee; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With Rh(acac)2(CH2CH2)2; (R)-segphos In dichloromethane; <i>tert</i>-butyl alcohol at 20 - 60℃; for 18h; optical yield given as %ee; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
71% | With water; potassium hydroxide In tetrahydrofuran for 0.333333h; Sonication; Inert atmosphere; | |
Multi-step reaction with 2 steps 1: water / acetone / Inert atmosphere 2: water; potassium carbonate / tetrahydrofuran / 20 °C / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | In water; benzene for 1h; Inert atmosphere; Reflux; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | Stage #1: tris(4-fluorophenyl)boroxine; 4-chlorobenzaldehyde With [2,2]bipyridinyl; sodium acetate; copper(l) chloride In o-xylene at 135℃; Stage #2: With hydrogenchloride In o-xylene; water |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
91% | Stage #1: cinnamylideneacetophenone; tris(4-fluorophenyl)boroxine With C68H32Cl2F8Ir2O8; potassium carbonate In methanol; dichloromethane at 30℃; for 24h; Stage #2: With Wilkinson's catalyst; hydrogen In methanol at 20℃; for 12h; optical yield given as %ee; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With potassium phosphate; tert-Amyl alcohol; 2C25H34O2*2ClRh In 1,4-dioxane at 60℃; for 12h; Inert atmosphere; optical yield given as %ee; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | Stage #1: benzophenone; tris(4-fluorophenyl)boroxine With chloro(1,5-cyclooctadiene)rhodium(I) dimer; potassium carbonate In toluene at 90 - 110℃; Stage #2: With hydrogenchloride In water; toluene |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | Stage #1: tris(4-fluorophenyl)boroxine; cyclohexanone With chloro(1,5-cyclooctadiene)rhodium(I) dimer; potassium carbonate In toluene at 90 - 110℃; Stage #2: With hydrogenchloride In water; toluene |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87% | Stage #1: tris(4-fluorophenyl)boroxine; 1-phenyl-propan-1-one With chloro(1,5-cyclooctadiene)rhodium(I) dimer; potassium carbonate In toluene at 90 - 110℃; Stage #2: With hydrogenchloride In water; toluene |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium nitrate; Pd(OTf)<SUB>2</SUB>(CH<SUB>3</SUB>CN)<SUB>4</SUB> In 1,2-dichloro-ethane at 20℃; for 48h; optical yield given as %de; diastereoselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
89% | With chloro(1,5-cyclooctadiene)rhodium(I) dimer; 1,2-diphenylphosphinobenzene; sodium ethanolate In 1,4-dioxane; ethanol at 60℃; Inert atmosphere; Molecular sieve; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87% | Stage #1: 1-(methylsulfonyl)-4-phenyl-1H-1,2,3-triazole; tris(4-fluorophenyl)boroxine With calcium chloride In chloroform for 0.5h; Heating; Glovebox; Inert atmosphere; Sealed tube; Stage #2: With Rh2(S-PTAD)4 In chloroform at 20℃; for 4h; Glovebox; Inert atmosphere; Sealed tube; stereoselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
68% | Stage #1: 4-(2-bromophenyl)-1-(methylsulfonyl)-1H-1,2,3-triazole; tris(4-fluorophenyl)boroxine In chloroform for 0.5h; Inert atmosphere; Glovebox; Heating; Sealed tube; Stage #2: With Rh2(S-PTAD)4 In chloroform at 50℃; Inert atmosphere; Glovebox; Sealed tube; Stage #3: With potassium phosphate; copper(l) iodide; N,N`-dimethylethylenediamine In toluene for 1h; Heating; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87% | With C64H46F8Fe4O2Rh2 In 1,4-dioxane at 80℃; for 24h; Schlenk technique; Inert atmosphere; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | With bis(1,5-cyclooctadiene)nickel (0); sodium methylate In toluene at 70℃; for 3h; Inert atmosphere; Glovebox; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
86% | With palladium diacetate; 2-[(S)-4,5-dihydro-4-tert-butyl-1,3-oxazol-2-yl]pyridine In 1,2-dichloro-ethane at 60℃; for 48h; enantioselective reaction; | |
86% | With palladium diacetate; 2-[(S)-4,5-dihydro-4-tert-butyl-1,3-oxazol-2-yl]pyridine In 1,2-dichloro-ethane at 60℃; for 48h; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With [2,2]bipyridinyl; palladium diacetate In 1,2-dichloro-ethane at 60℃; | ||
With 4-(tert-butyl)-2-(pyridin-2-yl)-4,5-dihydrooxazole; palladium diacetate In 1,2-dichloro-ethane at 60℃; for 8h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
72% | In acetone at 20℃; for 14h; | 2.2.3 Preparation of [{(F-Ph)BO}3·hmt] (3) 4-Fluorophenylboroxine (0.100g, 0.273mmol) was dissolved in 5mL of acetone. Hexamethylenetetramine (0.077g, 0.546mmol) was added to the solution. The solution was stirred at room temperature for 14h, filtered and left in a conical for slow evaporation of the solvent. Colourless crystals were obtained after 2 days. Yield: 0.100g, 72%. 1H NMR (CDCl3, 25°C, 400MHz): δ 4.66 (s, 12H, CH2), 7.06-7.11 (m, 6H, Ph), 7.93-7.97 (m, 6H, Ph) ppm; 13C NMR (CDCl3, 25°C, 100MHz): δ 74.0 (CH2), 114.4, 114.6 (d, JC-F=19.7Hz, Ph), 136.1, 136.2 (d, JC-F=7.7Hz, Ph), 163.2, 165.7 (d, JC-F=248.3Hz, Ph) ppm; 11B NMR (CDCl3, 25°C, 128MHz): δ 19.5ppm; 19F NMR (CDCl3, 25°C, 376MHz): δ-111.0ppm. IR data (KBr, cm-1): 2975 (w), 2931 (w), 1590 (s), 1502 (w), 1428 (m), 1411 (s), 1379 (m), 1327 (s), 1288 (s), 1256 (m), 1211 (m), 1182 (w), 1154 (w), 1119 (w), 1084 (w), 1007 (s), 834 (m), 785 (w), 750 (s), Anal. calcd for C24H24B3N4O3F3: Calc. C 56.97, H 4.78, N 11.07; found C 56.81, H 4.64, N 10.92. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With palladium diacetate; acetic acid; p-benzoquinone In dimethyl sulfoxide; 1,2-dichloro-ethane at 55℃; for 24h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
55% | With palladium(II) trifluoroacetate; silver carbonate; glyoxal bis(N-methyl-N-phenylhydrazone); In dimethyl sulfoxide; at 80℃; for 2h; | General procedure: To a mixture of arylcarboxylic acid (0.20 mmol), Ag2CO3 (165 mg, 0.60 mmol), Pd(TFA)2 (5.0 mg, 0.015 mmol, 7.5 mol %), and ligand 1d (4.0 mg, 0.015 mmol, 7.5 mol %) in DMSO (1.0 mL) was addedarylboroxin (0.40 mmol) at room temperature under an atmosphere of air.After the mixture was stirred at 80?C for 2 h, the mixture was diluted withethyl acetate and water. The organic layer was washed with brine, dried overMgSO4, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (hexane/EtOAc = 20:1). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
86% | With bis(1,5-cyclooctadiene)nickel(0); sodium methylate; benzyldiphenylphosphane In acetonitrile at 20℃; for 4h; Inert atmosphere; stereospecific reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58% | Stage #1: 2,2,2-trifluorodiazoethane; tris(4-fluorophenyl)boroxine In toluene at 20 - 23℃; for 6h; Inert atmosphere; Stage #2: 2,3-dimethyl-2,3-butane diol In dichloromethane; toluene at 20 - 23℃; for 1h; Inert atmosphere; | II.A [(4-Methoxyphenyl)-2,2,2-trifluoroethyl)] pinacol boronate [0117] Procedure A (from boronic acid): 4-Methoxyphenylboronic acid (151 mg, 1 mmol) was added to a 20 mL Biotage microwave vial equipped with a stir bar. The vial was sealed and purged with argon three times. The solution of 2,2,2-trifluorodiazoethane in C1CH2CH2C1 (0.25 M, 8 mL) was added under Ar, and the reaction was stirred at room temperature overnight. The reaction was quenched with pinacol (1 12 mg, 0.95 mmol) in (( (2 mL) for 1 h at RT under Ar. The crude was rapidly passed through a short plug of Celite, then concentrated under vacuum to provide the compound as a light yellow oil (275 mg, 87%) of -80% purity. IR (neat) 1514, 1348, 1247, 1 136, 1083, 969, 851, 736 cm- 1 ; 1H NMR (500 MHz, CDC13) δ 7.27 (d, J = 8.6 Hz, 2H), 6.88 (d, J = 8.7 Hz, 2H), 3.79 (s, 3H), 3.16 (q, J = 11.5 Hz, 1H), 1.29 (s, 6H), 1.25 (s, 6H); 13C NMR (126 MHz, CDC13) δ 159.3, 131.5, 127.0 (q, J = 277.2 Hz), 124.1 (q, J = 2.9 Hz), 1 14.2, 84.7, 55.3, 37.8, 24.6 (d, J = 15.1 Hz); 19F NMR (282 MHz, CDC13) δ -63.18 (d, J = 1 1.3 Hz); 1 IB NMR (128 MHz, CDC13) δ 30.46; HRMS (ESI-TOF) m/z calcd. for Ci5H2oB03F3 316.1458, found 316.1460.; [0118] The following tabulated products were prepared using Procedure A, except where toluene or 1,2-dichloroethane (DCE) was used as the solvent and boroxine was used as the boron-containing starting material. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
97% | Stage #1: 3-cyclohexyl-1,2-benziothiazole-1,1-dioxide; tris(4-fluorophenyl)boroxine With chlorobis(cyclooctene)rhodium(I) dimer; C18H23NOS In 1,2-dichloro-ethane at 20℃; for 0.5h; Inert atmosphere; Stage #2: With potassium hydroxide In water; 1,2-dichloro-ethane at 60℃; for 12h; Inert atmosphere; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
68% | With tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
71% | Stage #1: tris(4-fluorophenyl)boroxine; N-(2-bromobenzylidene)-4-methylbenzenesulfonamide With 2Rh(1+)*2Cl(1-)*C23H24O2; potassium hydroxide In toluene at 60℃; for 15h; Inert atmosphere; Stage #2: With potassium phosphate; tetrakis(triphenylphosphine) palladium(0) In toluene at 120℃; for 30h; Inert atmosphere; Molecular sieve; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
63% | Stage #1: N-[(2-bromo-4-methylphenyl)methylene]-4-methylbenzenesulfonamide; tris(4-fluorophenyl)boroxine With 2Rh(1+)*2Cl(1-)*C23H24O2; potassium hydroxide In toluene at 60℃; for 15h; Inert atmosphere; Stage #2: With potassium phosphate; tetrakis(triphenylphosphine) palladium(0) In toluene at 130℃; for 48h; Inert atmosphere; Molecular sieve; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
89% | With dmap; tributyl-amine; copper diacetate In dimethyl sulfoxide at 20℃; for 72h; | 6 Preparation of N-[4-(4-fluorophenyl)-2,2-dimethyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl]-N-(methylsulfonyl)methanesulfonamide EXAMPLE 6 Preparation of N-[4-(4-fluorophenyl)-2,2-dimethyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl]-N-(methylsulfonyl)methanesulfonamide N-(2,2-dimethyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl)-N-(methylsulfonyl)methanesulfonamide (200 g), tris(4-fluorophenyl)boroxine (140.5 g), 4-dimethylaminopyridine (14.0 g), tributylamine (85.1 g) and copper(II) acetate monohydrate (11.5 g) were added to dimethylsulfoxide (1500 mL), and the mixture was stirred at 20°C for 72 hours under blowing air (850 mL/min) dehydrated with silica gel thereto. To the reaction mixture was added dropwise an aqueous hydrochloric acid solution (concentrated hydrochloric acid (119.7 g)/water (1422 mL)) at 30°C or lower, then methanol (1000 mL) was added thereto, and the mixture was stirred at 20°C for 2 hours. The precipitated crystals were collected by filtration, successively washed with water (2000 mL) and methanol (1000 mL), and then suspended in methanol (2000 mL). The suspension was heated under reflux for 1.5 hours, then cooled to 20°C, and stirred at the same temperature for 30 minutes. The precipitated crystals were collected by filtration, washed with methanol (1000 mL), and then dried to obtain the title compound (226.2 g) (yield: 89%, purity: 99%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
76% | With tris(acetonitrile)pentamethylcyclopentadienylrhodium(III) hexafluoroantimonate; silver(l) oxide In N,N-dimethyl-formamide at 100℃; for 24h; Inert atmosphere; Autoclave; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
54% | With tris(acetonitrile)pentamethylcyclopentadienylrhodium(III) hexafluoroantimonate; silver(l) oxide In N,N-dimethyl-formamide at 100℃; for 24h; Inert atmosphere; Autoclave; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82% | With [RhCl((R,R)-ferrocenyl-tfb*)]2; potassium hydroxide In 1,4-dioxane at 20 - 40℃; for 15h; Inert atmosphere; Schlenk technique; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With copper(I) trifluoromethanesulfonate * 1/2 toluene; C35H40NO2P; potassium acetate In toluene at 70℃; for 30h; Inert atmosphere; Autoclave; Glovebox; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93% | With copper(I) trifluoromethanesulfonate * 1/2 toluene; (Ss,1S,1'S)-N-(1-cyclohexylethyl)-N-(1-tetralinyl)-1,1'-spirobiindan-2,2'-diylphosphoramidite; potassium acetate In toluene at 70℃; for 30h; Inert atmosphere; Autoclave; Glovebox; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70% | With [{(M,SS,SS)-p-Tol-binaso}Rh(OH)]2 In water; toluene at 35℃; for 14h; Glovebox; Sealed tube; Inert atmosphere; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
96% | With [{(M,SS,SS)-p-Tol-binaso}Rh(OH)]2 In water; toluene at 25℃; for 14h; Glovebox; Sealed tube; Inert atmosphere; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
83% | With cesium acetate; copper(II) bis(trifluoromethanesulfonate); triethylamine In 1,2-dichloro-ethane at 30℃; for 44h; Glovebox; Inert atmosphere; | |
83% | With cesium acetate; copper(II) bis(trifluoromethanesulfonate); triethylamine In 1,2-dichloro-ethane at 30℃; for 44h; Inert atmosphere; Sealed tube; | |
83% | With cesium acetate; copper(II) bis(trifluoromethanesulfonate); triethylamine In 1,2-dichloro-ethane at 30℃; for 44h; Sealed tube; | General Procedure A: Using Arylboroxines (Glovebox) General procedure: In an atmosphere controlled glovebox, Cu(OTf)2 (398 mg, 1.10 mmol, 2.20 equiv.), arylboroxine (0.330 mmol, 0.670 equiv.), and CsOAc (106 mg, 0.550 mmol, 1.10 equiv.) were added sequentially to a 2 dram vial charged with a stir bar. The sp3-carbon nucleophile (0.500 mmol, 1.00 equiv.) and triethylamine (0.210 mL, 1.50 mmol, 3.00 equiv.) were added as a solution in anhydrous 1,2-DCE (1.20 mL). Additional 1,2-DCE (2×0.5 mL) was used to quantitatively transfer the solution to the reaction mixture. The vial was sealed with a PTFE-lined cap and stirred outside the glovebox at 30° C. Reaction progress was generally monitored by GC-FID using n-dodecane as an internal standard. Unless otherwise noted, reactions were quenched after 36-48 hours, when >95% conversion of sp3-carbon nucleophile was reached. The reaction was quenched with 5 mL of brine and extracted with EtOAc (4×10 mL). The organic layer was then washed with 5 mL brine and dried with Na2SO4, and the solvent was removed by vacuum. The crude residue was purified by flash silica gel chromatography. Note: the order of addition of reagents is important for achieving optimal yields. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
94.6 mg | With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In tetrahydrofuran; ethanol at 90℃; for 14.75h; Inert atmosphere; | 81.a (S)-1-tert-butoxycarbonyl-4-(5-chloro-7-(4-fluorophenyl)benzoxazole-2-yl)-3-methylpiperazine Obtained in Example 16 (a) (S)-1-tert-butoxycarbonyl-4-(7-bromo-5-chlorobenzoxazole-2-yl)-3-methylpiperazine (86mg), Potassium carbonate (55.3mg, 2.0 eq) and 2,4,6-tris (4-fluorophenyl) dissolved in(73mg, 1.0 equiv) THF (1.6mL) and ethanol (0.4mL), and Ar after stirring for 15 minutes under the atmosphere, it was added tetrakis (triphenylphosphine) palladium (0) (23, 0.1 eq), and stirred 14.5 hours in an oil bath of 90 °C. Water was added to the reaction mixture, and the product extracted with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure, and the residue was purified by silica gel column chromatography (developing solvent, hexane: ethyl acetate = 17: 3) to give the title compound 94.6mg. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70% | With chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide In tert-butyl methyl ether at 80℃; for 10h; | Synthesis of (S)-4-chloro- (2,4-dichlorophenyl)4-(4-fluorophenyl)-Shu-butanol (5). A mixture of 4-chloro-1- (2,4_ dichlorophenyl) -1_ butanone (4) (50 · 3mg, 0 · 20mmol, lequiv), 4_ fluorobenzene boronic acid anhydride (146 · 3mg , 0 · 40mmo1,2equiv), bromide meter (12 · 9mg, 0 · 07mmo1,0 · 35equiv), cesium gasification (121 · 5mg, 0.80mmol, 4equiv), (R, R, R, R) _WingPhos ( 5 · 4mg, 0 · 0072mmo1,3 · 6mol%) and [Rh (C2H4) 2Cl] 2 (1.2mg, 0.003mmol, 1.5mol%) in a dry reaction tube, a nitrogen gas three times accessible, freshly distilled methyl tert-butyl ether (1.5mL).The reaction tube was placed in an oil bath at 80 ° C for 10 hours.After the move to cool at room temperature, water was added to quench the reaction.Extracted with dichloromethane, organic phases were combined, dried over anhydrous sodium sulfate, and concentrated by column chromatography to give the product (S) -4- chloro-1- (2,4-dichlorophenyl) -1- (4-fluorophenyl ) -1-butanol (5) (48.6mg, 0.14mmol, 70% yield,> 99% ee) as an oily liquid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / N,N-dimethyl acetamide / 8 h / 60 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; tris-(dibenzylideneacetone)dipalladium(0) / 14 h / 160 °C / Inert atmosphere | ||
Multi-step reaction with 3 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / acetonitrile / 14 h / 80 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; tris-(dibenzylideneacetone)dipalladium(0) / 14 h / 160 °C / Inert atmosphere | ||
Multi-step reaction with 3 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / N,N-dimethyl acetamide / 8 h / 60 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 18 h / 160 °C / Inert atmosphere |
Multi-step reaction with 3 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / N,N-dimethyl acetamide / 8 h / 60 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 22 h / 160 °C / Inert atmosphere | ||
Multi-step reaction with 3 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / acetonitrile / 14 h / 80 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 18 h / 160 °C / Inert atmosphere | ||
Multi-step reaction with 3 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / acetonitrile / 14 h / 80 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 22 h / 160 °C / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 5 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / acetonitrile / 14 h / 80 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; tris-(dibenzylideneacetone)dipalladium(0) / 14 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere | ||
Multi-step reaction with 5 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / N,N-dimethyl acetamide / 8 h / 60 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; tris-(dibenzylideneacetone)dipalladium(0) / 14 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere | ||
Multi-step reaction with 5 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / acetonitrile / 14 h / 80 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 18 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere |
Multi-step reaction with 5 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / acetonitrile / 14 h / 80 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 22 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere | ||
Multi-step reaction with 5 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / N,N-dimethyl acetamide / 8 h / 60 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 18 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere | ||
Multi-step reaction with 5 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / N,N-dimethyl acetamide / 8 h / 60 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 22 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 6 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / acetonitrile / 14 h / 80 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; tris-(dibenzylideneacetone)dipalladium(0) / 14 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere 6: triethylamine / dichloromethane / Inert atmosphere | ||
Multi-step reaction with 6 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / N,N-dimethyl acetamide / 8 h / 60 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; tris-(dibenzylideneacetone)dipalladium(0) / 14 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere 6: triethylamine / dichloromethane / Inert atmosphere | ||
Multi-step reaction with 6 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / acetonitrile / 14 h / 80 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 18 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere 6: triethylamine / dichloromethane / Inert atmosphere |
Multi-step reaction with 6 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / acetonitrile / 14 h / 80 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 22 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere 6: triethylamine / dichloromethane / Inert atmosphere | ||
Multi-step reaction with 6 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / N,N-dimethyl acetamide / 8 h / 60 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 18 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere 6: triethylamine / dichloromethane / Inert atmosphere | ||
Multi-step reaction with 6 steps 1: chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride; magnesium bromide / tert-butyl methyl ether / 10 h / 80 °C 2: potassium carbonate; sodium iodide / N,N-dimethyl acetamide / 8 h / 60 °C / Inert atmosphere 3: 1,1'-bis-(diphenylphosphino)ferrocene; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / 22 h / 160 °C / Inert atmosphere 4: diisobutylaluminium hydride / tetrahydrofuran; toluene / 2 h / -78 - 10 °C / Inert atmosphere 5: sodium tetrahydroborate / tetrahydrofuran; toluene / Inert atmosphere 6: triethylamine / dichloromethane / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
46% | With cesium acetate; copper(II) bis(trifluoromethanesulfonate); triethylamine In 1,2-dichloro-ethane at 40℃; for 25h; Inert atmosphere; Sealed tube; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | Stage #1: tris(4-fluorophenyl)boroxine; N,N-dimethyl-N'-(phenylmethylene)sulfamide With chlorobis(cyclooctene)rhodium(I) dimer; (R)-N-(4,4-dimethyl-2-methylenepentyl)-2-methylpropane-2-sulfinamide In toluene at 20℃; for 0.5h; Inert atmosphere; Stage #2: With potassium hydroxide In toluene at 60℃; for 6h; Inert atmosphere; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | With tetrakis(triphenylphosphine)nickel(0); water; 1,2-bis-(dicyclohexylphosphino)ethane In diethylene glycol dimethyl ether at 110℃; for 24h; Glovebox; Schlenk technique; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
71% | Stage #1: tris(4-fluorophenyl)boroxine; diazomethyl-trimethyl-silane With N-ethyl-N,N-diisopropylamine In hexane; toluene at 85℃; for 1h; Inert atmosphere; Stage #2: 2,3-dimethyl-2,3-butane diol In hexane; toluene at 20℃; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
78% | With bis(1,5-cyclooctadiene)nickel (0); C46H67P In toluene at 70℃; for 16h; | |
With bis(1,5-cyclooctadiene)nickel (0); C77H107P In toluene at 60℃; for 16h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | With bis(1,5-cyclooctadiene)nickel (0); dicyclohexyl-(2′,4′,6′-triisopropyl-3,6-dimethoxy-[1,1′-biphenyl]-2-yl)phosphine; sodium ethanolate In toluene at 85℃; for 16h; Sealed tube; Glovebox; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium hexafluoroantimonate; [Cp*Rh(OAc)2(H2O)]; silver(I) acetate In 1,2-dichloro-ethane at 60℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
83.333 % de | With silver hexafluoroantimonate; dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; silver(I) acetate In 1,2-dichloro-ethane at 60℃; for 4h; Overall yield = 60 %; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
91% | With (11aR)-(+)-10,11,12,13-tetrahydrodiindeno-[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-bis[(R)-1-phenylethyl]amine; potassium acetate; copper (I) acetate In toluene at 80℃; Inert atmosphere; Schlenk technique; Glovebox; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
52% | With potassium phosphate; [Rh(OH)(cod)]2; water; triethylamine; (R)-(+)-2,2',6,6'-tetramethoxy-4,4'-bis(di(3,5-xylyl)phosphino)-3,3'-bipyridine In toluene at 80℃; for 12h; Schlenk technique; Sealed tube; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
61% | With chlorobis(ethylene)rhodium(I) dimer; (R,R,R,R)-Wingphos; cesium fluoride In toluene at 70℃; for 10h; Schlenk technique; Inert atmosphere; enantioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81% | With C62H74Cl2N4Pd2S2; potassium carbonate In toluene at 100℃; for 2h; Inert atmosphere; Sealed tube; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
13 %Chromat. | With 1,3-dimethyl-2-imidazolidinone; (1,2-dimethoxyethane)dichloronickel(II); 3,4,7,8-Tetramethyl-o-phenanthrolin; lithium tert-butoxide In neat liquid at 100℃; for 16h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With (1,2-dimethoxyethane)dichloronickel(II); caesium carbonate; 4,4'-dinonyl-2,2'-bipyridine In 1,4-dioxane at 80℃; for 16h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
19 %Chromat. | With (1,2-dimethoxyethane)dichloronickel(II); 3,4,7,8-Tetramethyl-o-phenanthrolin; lithium tert-butoxide In 1,4-dioxane at 80℃; for 16h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
55 %Chromat. | With (1,2-dimethoxyethane)dichloronickel(II); 3,4,7,8-Tetramethyl-o-phenanthrolin; sodium t-butanolate In 1,4-dioxane at 80℃; for 16h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
33 %Chromat. | With potassium phosphate; (1,2-dimethoxyethane)dichloronickel(II); 3,4,7,8-Tetramethyl-o-phenanthrolin In 1,4-dioxane at 80℃; for 16h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With (1,2-dimethoxyethane)dichloronickel(II); caesium carbonate; 4,4'-dinonyl-2,2'-bipyridine In 1,4-dioxane at 80℃; for 16h; Inert atmosphere; Large scale; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
97% | With dichloromethane at 30℃; for 12h; Sealed tube; Irradiation; Glovebox; Inert atmosphere; |
Tags: 448-59-9 synthesis path| 448-59-9 SDS| 448-59-9 COA| 448-59-9 purity| 448-59-9 application| 448-59-9 NMR| 448-59-9 COA| 448-59-9 structure
[ 218963-15-6 ]
2,4,6-Tris(3,5-difluorophenyl)-1,3,5,2,4,6-trioxatriborinane
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P340 | Remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P341 | If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P342 | If experiencing respiratory symptoms: |
P350 | Gently wash with plenty of soap and water. |
P351 | Rinse cautiously with water for several minutes. |
P352 | Wash with plenty of soap and water. |
P353 | Rinse skin with water/shower. |
P360 | Rinse immediately contaminated clothing and skin with plenty of water before removing clothes. |
P361 | Remove/Take off immediately all contaminated clothing. |
P362 | Take off contaminated clothing and wash before reuse. |
P363 | Wash contaminated clothing before reuse. |
P370 | In case of fire: |
P371 | In case of major fire and large quantities: |
P372 | Explosion risk in case of fire. |
P373 | DO NOT fight fire when fire reaches explosives. |
P374 | Fight fire with normal precautions from a reasonable distance. |
P376 | Stop leak if safe to do so. Oxidising gases (section 2.4) 1 |
P377 | Leaking gas fire: Do not extinguish, unless leak can be stopped safely. |
P378 | |
P380 | Evacuate area. |
P381 | Eliminate all ignition sources if safe to do so. |
P390 | Absorb spillage to prevent material damage. |
P391 | Collect spillage. Hazardous to the aquatic environment |
P301 + P310 | IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
P301 + P312 | IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. |
P301 + P330 + P331 | IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. |
P302 + P334 | IF ON SKIN: Immerse in cool water/wrap in wet bandages. |
P302 + P350 | IF ON SKIN: Gently wash with plenty of soap and water. |
P303 + P361 + P353 | IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
P304 + P312 | IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell. |
P304 + P340 | IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. |
P304 + P341 | IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P305 + P351 + P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
P306 + P360 | IF ON CLOTHING: Rinse Immediately contaminated CLOTHING and SKIN with plenty of water before removing clothes. |
P307 + P311 | IF exposed: call a POISON CENTER or doctor/physician. |
P308 + P313 | IF exposed or concerned: Get medical advice/attention. |
P309 + P311 | IF exposed or if you feel unwell: call a POISON CENTER or doctor/physician. |
P332 + P313 | IF SKIN irritation occurs: Get medical advice/attention. |
P333 + P313 | IF SKIN irritation or rash occurs: Get medical advice/attention. |
P335 + P334 | Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages. |
P337 + P313 | IF eye irritation persists: Get medical advice/attention. |
P342 + P311 | IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician. |
P370 + P376 | In case of fire: Stop leak if safe to Do so. |
P370 + P378 | In case of fire: |
P370 + P380 | In case of fire: Evacuate area. |
P370 + P380 + P375 | In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion. |
P371 + P380 + P375 | In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion. |
Storage | |
Code | Phrase |
P401 | |
P402 | Store in a dry place. |
P403 | Store in a well-ventilated place. |
P404 | Store in a closed container. |
P405 | Store locked up. |
P406 | Store in corrosive resistant/ container with a resistant inner liner. |
P407 | Maintain air gap between stacks/pallets. |
P410 | Protect from sunlight. |
P411 | |
P412 | Do not expose to temperatures exceeding 50 oC/ 122 oF. |
P413 | |
P420 | Store away from other materials. |
P422 | |
P402 + P404 | Store in a dry place. Store in a closed container. |
P403 + P233 | Store in a well-ventilated place. Keep container tightly closed. |
P403 + P235 | Store in a well-ventilated place. Keep cool. |
P410 + P403 | Protect from sunlight. Store in a well-ventilated place. |
P410 + P412 | Protect from sunlight. Do not expose to temperatures exceeding 50 oC/122oF. |
P411 + P235 | Keep cool. |
Disposal | |
Code | Phrase |
P501 | Dispose of contents/container to ... |
P502 | Refer to manufacturer/supplier for information on recovery/recycling |
Physical hazards | |
Code | Phrase |
H200 | Unstable explosive |
H201 | Explosive; mass explosion hazard |
H202 | Explosive; severe projection hazard |
H203 | Explosive; fire, blast or projection hazard |
H204 | Fire or projection hazard |
H205 | May mass explode in fire |
H220 | Extremely flammable gas |
H221 | Flammable gas |
H222 | Extremely flammable aerosol |
H223 | Flammable aerosol |
H224 | Extremely flammable liquid and vapour |
H225 | Highly flammable liquid and vapour |
H226 | Flammable liquid and vapour |
H227 | Combustible liquid |
H228 | Flammable solid |
H229 | Pressurized container: may burst if heated |
H230 | May react explosively even in the absence of air |
H231 | May react explosively even in the absence of air at elevated pressure and/or temperature |
H240 | Heating may cause an explosion |
H241 | Heating may cause a fire or explosion |
H242 | Heating may cause a fire |
H250 | Catches fire spontaneously if exposed to air |
H251 | Self-heating; may catch fire |
H252 | Self-heating in large quantities; may catch fire |
H260 | In contact with water releases flammable gases which may ignite spontaneously |
H261 | In contact with water releases flammable gas |
H270 | May cause or intensify fire; oxidizer |
H271 | May cause fire or explosion; strong oxidizer |
H272 | May intensify fire; oxidizer |
H280 | Contains gas under pressure; may explode if heated |
H281 | Contains refrigerated gas; may cause cryogenic burns or injury |
H290 | May be corrosive to metals |
Health hazards | |
Code | Phrase |
H300 | Fatal if swallowed |
H301 | Toxic if swallowed |
H302 | Harmful if swallowed |
H303 | May be harmful if swallowed |
H304 | May be fatal if swallowed and enters airways |
H305 | May be harmful if swallowed and enters airways |
H310 | Fatal in contact with skin |
H311 | Toxic in contact with skin |
H312 | Harmful in contact with skin |
H313 | May be harmful in contact with skin |
H314 | Causes severe skin burns and eye damage |
H315 | Causes skin irritation |
H316 | Causes mild skin irritation |
H317 | May cause an allergic skin reaction |
H318 | Causes serious eye damage |
H319 | Causes serious eye irritation |
H320 | Causes eye irritation |
H330 | Fatal if inhaled |
H331 | Toxic if inhaled |
H332 | Harmful if inhaled |
H333 | May be harmful if inhaled |
H334 | May cause allergy or asthma symptoms or breathing difficulties if inhaled |
H335 | May cause respiratory irritation |
H336 | May cause drowsiness or dizziness |
H340 | May cause genetic defects |
H341 | Suspected of causing genetic defects |
H350 | May cause cancer |
H351 | Suspected of causing cancer |
H360 | May damage fertility or the unborn child |
H361 | Suspected of damaging fertility or the unborn child |
H361d | Suspected of damaging the unborn child |
H362 | May cause harm to breast-fed children |
H370 | Causes damage to organs |
H371 | May cause damage to organs |
H372 | Causes damage to organs through prolonged or repeated exposure |
H373 | May cause damage to organs through prolonged or repeated exposure |
Environmental hazards | |
Code | Phrase |
H400 | Very toxic to aquatic life |
H401 | Toxic to aquatic life |
H402 | Harmful to aquatic life |
H410 | Very toxic to aquatic life with long-lasting effects |
H411 | Toxic to aquatic life with long-lasting effects |
H412 | Harmful to aquatic life with long-lasting effects |
H413 | May cause long-lasting harmful effects to aquatic life |
H420 | Harms public health and the environment by destroying ozone in the upper atmosphere |
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