Structure of 2848-01-3
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CAS No. : | 2848-01-3 |
Formula : | C15H15O2P |
M.W : | 258.25 |
SMILES Code : | O=C(O)CCP(C1=CC=CC=C1)C2=CC=CC=C2 |
MDL No. : | MFCD00775376 |
InChI Key : | OTSIFUHGOBFOTH-UHFFFAOYSA-N |
Pubchem ID : | 3709176 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
* 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 |
---|---|---|
With sulfur; In toluene; at 85℃; for 1h;Inert atmosphere; | Ph2P(S)(CH2)2COOH (compound 4) was prepared according tothe literature method [13] by heating 200 mg (0.77 mmol) of 2with 25 mg (0.78 mmol) of sulfur to 85 C in toluene under nitrogenatmosphere for 1 h. The identity of the obtained product wasmonitored by 31P {1H} NMR spectroscopy, single crystals of 4 wereobtained by slow diffusion of hexane into a CH2Cl2 solution of 4. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99% | With diisopropyl-carbodiimide; In dichloromethane; at 0 - 20℃;Inert atmosphere; | 3-(Diphenylphosphanyl)propanoic acid 1d (1.20 g, 4.65 mmol) was dissolved in CH2Cl2 (10 mL), and the solution was cooled to 0 C. NHS (1.05 g, 9.30 mmol) and DIC (0.86 mL, 5.58 mmol) were added, and the mixture was allowed to warm to room temperature and stirred overnight under Ar(g). The resulting suspension was filtered, and the filtrate was concentrated under reduced pressure. The resulting residue was purified by silica gel flash chromatography, eluting with 30% EtOAc-hexanes, to give the ester 1e as a white solid (1.64 g, 4.62 mmol, 99% yield).Data for 1e: 1H NMR (400 MHz, CDCl3) δ=7.47-7.32 (m, 10H, Ar), 2.82 (s, 4H, succinmyl), 2.67 (m, 2H, CH2), 2.43 (m, 2H, CH2). 13C NMR (100 MHz, CDCl3, 31P-coupled; 1H-decoupled, observed signals) δ=169.0, 168.5, 168.3, 137.0, 136.8, 132.8, 132.6, 129.1, 128.7, 128.7, 27.8, 27.6, 25.6, 22.7, 22.6. 31P NMR (162 MHz, CDCl3) δ=-15.3. HRMS (ESI+) m/z calculated for (C19H19NO4P)+ 356.1052, measured 356.1060. |
58% | With diisopropyl-carbodiimide; In dichloromethane; at 20℃; | To a i00-rnL round-bottomed flask were added 3-(diphenyiphosphino)propanoic acid (2.50 g, 9.68 mnmol) and nhydroxysuccinimide (1.23 g, 10.7 rnmol) in DCM (19.4 ml), and then N,Nmethanediylidenebis(propan-2-amine) (1.34 g, 10.7 mmol). The mixture was stirred at ambient temperature overnight. The reaction mixture was diluted with Et2() and the solid was removed by filtration. The filtrate was concentrated. The residue was redissoived in a mixture of EtOAc and hexane, and solid was precipitated. Filtration provided the title compound (2.00 g, 58%). m/z (ESI, ±ve ion) 356.1 (M+H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
98.4% | To a 1000 ml four-necked flask, 400 g of acetonitrile was added and the temperature was lowered to T = -20 to 25 C under nitrogen. A 53.5 g diphenylphosphine, 27.5 g of methyl acrylate was put into a four-necked flask, and the alkali solution diluted with acetonitrile was added dropwise with stirring. After completion of the dropwise addition, the reaction was carried out. After the reaction was complete, the solution was hydrolyzed by adding potassium hydroxide solution, adjusted to acidic with dilute hydrochloric acid, extracted with dichloromethane, and concentrated under reduced pressureMethane, crude. The crude product is recrystallized, filtered and dried. A dry product (VI) of 73.0 g was obtained. The yield was 136.5%Rate of 98.4%. | |
92% | Diphenylphosphine (2.00 mL, 11.5 mmol) was dissolved in degassed CH3CN (20 mL). Methyl acrylate (3.80 mL, 42.5 mmol) and a few drops of benzyltrimethylammonium hydroxide (40 wt. % in MeOH) were added, and the resulting solution was stirred under Ar(g). The reaction was monitored by TLC and after the introduction of additional drops of base (after 2 h) the reaction was found to be complete after 4 h. The solution was then concentrated under reduced pressure; the resulting oil was dissolved in CH2Cl2 (100 mL) and concentrated again. The resulting oil was then dissolved in MeOH (10 mL) and an aqueous solution of KOH (4.00 g, 71.4 mmol in 10 mL of H2O) was added. The mixture was stirred under Ar(g). After 1 h, the reaction was found to be complete, and the solution was diluted with H2O (200 mL) and acidified to pH 2 with 2M HCl. The suspension was then extracted with CH2Cl2 (2×150 mL), and the organic layers were combined, dried over Na2SO4(s) and concentrated under reduced pressure. The solid residue was purified by silica gel flash chromatography, eluting with 2% MeOH/CH2Cl2, to give the acid 1d as a white solid (2.74 g, 10.6 mmol, 92% yield).Data for 1d: 1H NMR (400 MHz, CDCl3) δ=7.46-7.32 (10H, m, Ar), 2.44 (m, 2H, CH2), 2.35 (m, 2H, CH2). 13C NMR (100 MHz, CDCl3, 31P-coupled; 1H-decoupled, observed signals) δ=179.1, 179.0, 137.5, 137.4, 132.8, 132.6, 128.9, 128.6, 128.5, 30.5, 30.2, 22.7, 22.6. 31P NMR (162 MHz, CDCl3) δ=-15.5. HRMS (ESI+) m/z calculated for (C15H16O2P)+ 259.0888, measured 259.0895. |