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Chemical Structure| 396-31-6 Chemical Structure| 396-31-6

Structure of 396-31-6

Chemical Structure| 396-31-6

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Product Details of [ 396-31-6 ]

CAS No. :396-31-6
Formula : C9H6FN
M.W : 147.15
SMILES Code : FC1=CC2=CC=CC=C2N=C1
MDL No. :MFCD00234493
InChI Key :UFIGOYSEDNHKGT-UHFFFAOYSA-N
Pubchem ID :96405

Safety of [ 396-31-6 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H320-H335
Precautionary Statements:P264-P270-P301+P312-P330

Computational Chemistry of [ 396-31-6 ] Show Less

Physicochemical Properties

Num. heavy atoms 11
Num. arom. heavy atoms 10
Fraction Csp3 0.0
Num. rotatable bonds 0
Num. H-bond acceptors 2.0
Num. H-bond donors 0.0
Molar Refractivity 41.7
TPSA ?

Topological Polar Surface Area: Calculated from
Ertl P. et al. 2000 J. Med. Chem.

12.89 Ų

Lipophilicity

Log Po/w (iLOGP)?

iLOGP: in-house physics-based method implemented from
Daina A et al. 2014 J. Chem. Inf. Model.

1.89
Log Po/w (XLOGP3)?

XLOGP3: Atomistic and knowledge-based method calculated by
XLOGP program, version 3.2.2, courtesy of CCBG, Shanghai Institute of Organic Chemistry

2.41
Log Po/w (WLOGP)?

WLOGP: Atomistic method implemented from
Wildman SA and Crippen GM. 1999 J. Chem. Inf. Model.

2.79
Log Po/w (MLOGP)?

MLOGP: Topological method implemented from
Moriguchi I. et al. 1992 Chem. Pharm. Bull.
Moriguchi I. et al. 1994 Chem. Pharm. Bull.
Lipinski PA. et al. 2001 Adv. Drug. Deliv. Rev.

2.27
Log Po/w (SILICOS-IT)?

SILICOS-IT: Hybrid fragmental/topological method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

2.91
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

2.45

Water Solubility

Log S (ESOL):?

ESOL: Topological method implemented from
Delaney JS. 2004 J. Chem. Inf. Model.

-2.94
Solubility 0.168 mg/ml ; 0.00114 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble
Log S (Ali)?

Ali: Topological method implemented from
Ali J. et al. 2012 J. Chem. Inf. Model.

-2.32
Solubility 0.7 mg/ml ; 0.00476 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble
Log S (SILICOS-IT)?

SILICOS-IT: Fragmental method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

-3.96
Solubility 0.0162 mg/ml ; 0.00011 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble

Pharmacokinetics

GI absorption?

Gatrointestinal absorption: according to the white of the BOILED-Egg

High
BBB permeant?

BBB permeation: according to the yolk of the BOILED-Egg

Yes
P-gp substrate?

P-glycoprotein substrate: SVM model built on 1033 molecules (training set)
and tested on 415 molecules (test set)
10-fold CV: ACC=0.72 / AUC=0.77
External: ACC=0.88 / AUC=0.94

No
CYP1A2 inhibitor?

Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.83 / AUC=0.90
External: ACC=0.84 / AUC=0.91

Yes
CYP2C19 inhibitor?

Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.80 / AUC=0.86
External: ACC=0.80 / AUC=0.87

No
CYP2C9 inhibitor?

Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set)
and tested on 2075 molecules (test set)
10-fold CV: ACC=0.78 / AUC=0.85
External: ACC=0.71 / AUC=0.81

No
CYP2D6 inhibitor?

Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set)
and tested on 1068 molecules (test set)
10-fold CV: ACC=0.79 / AUC=0.85
External: ACC=0.81 / AUC=0.87

No
CYP3A4 inhibitor?

Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set)
and tested on 2579 molecules (test set)
10-fold CV: ACC=0.77 / AUC=0.85
External: ACC=0.78 / AUC=0.86

No
Log Kp (skin permeation)?

Skin permeation: QSPR model implemented from
Potts RO and Guy RH. 1992 Pharm. Res.

-5.49 cm/s

Druglikeness

Lipinski?

Lipinski (Pfizer) filter: implemented from
Lipinski CA. et al. 2001 Adv. Drug Deliv. Rev.
MW ≤ 500
MLOGP ≤ 4.15
N or O ≤ 10
NH or OH ≤ 5

0.0
Ghose?

Ghose filter: implemented from
Ghose AK. et al. 1999 J. Comb. Chem.
160 ≤ MW ≤ 480
-0.4 ≤ WLOGP ≤ 5.6
40 ≤ MR ≤ 130
20 ≤ atoms ≤ 70

None
Veber?

Veber (GSK) filter: implemented from
Veber DF. et al. 2002 J. Med. Chem.
Rotatable bonds ≤ 10
TPSA ≤ 140

0.0
Egan?

Egan (Pharmacia) filter: implemented from
Egan WJ. et al. 2000 J. Med. Chem.
WLOGP ≤ 5.88
TPSA ≤ 131.6

0.0
Muegge?

Muegge (Bayer) filter: implemented from
Muegge I. et al. 2001 J. Med. Chem.
200 ≤ MW ≤ 600
-2 ≤ XLOGP ≤ 5
TPSA ≤ 150
Num. rings ≤ 7
Num. carbon > 4
Num. heteroatoms > 1
Num. rotatable bonds ≤ 15
H-bond acc. ≤ 10
H-bond don. ≤ 5

2.0
Bioavailability Score?

Abbott Bioavailability Score: Probability of F > 10% in rat
implemented from
Martin YC. 2005 J. Med. Chem.

0.55

Medicinal Chemistry

PAINS?

Pan Assay Interference Structures: implemented from
Baell JB. & Holloway GA. 2010 J. Med. Chem.

0.0 alert
Brenk?

Structural Alert: implemented from
Brenk R. et al. 2008 ChemMedChem

0.0 alert: heavy_metal
Leadlikeness?

Leadlikeness: implemented from
Teague SJ. 1999 Angew. Chem. Int. Ed.
250 ≤ MW ≤ 350
XLOGP ≤ 3.5
Num. rotatable bonds ≤ 7

No; 1 violation:MW<1.0
Synthetic accessibility?

Synthetic accessibility score: from 1 (very easy) to 10 (very difficult)
based on 1024 fragmental contributions (FP2) modulated by size and complexity penaties,
trained on 12'782'590 molecules and tested on 40 external molecules (r2 = 0.94)

1.37

Application In Synthesis of [ 396-31-6 ]

* 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.

  • Downstream synthetic route of [ 396-31-6 ]

[ 396-31-6 ] Synthesis Path-Downstream   1~35

  • 1
  • [ 396-31-6 ]
  • [ 74-88-4 ]
  • [ 84078-57-9 ]
  • 2
  • [ 580-17-6 ]
  • [ 396-31-6 ]
YieldReaction ConditionsOperation in experiment
40% With tert.-butylnitrite; boron trifluoride; In chlorobenzene; at 50 - 100℃; for 1.5h; Example 11 Preparation of 3-fluoroquinoline 1 g (6.94 mmol) of 3-aminoquinoline in 10 ml of chlorobenzene is introduced dropwise over 10 minutes onto a heel of 0.66 ml (10.4 mmol, 1.5 mol. eq.) of BF3.2H2O at ambient temperature in a 50 ml three-necked flask equipped with a reflux condenser, a thermocouple and a stirring system. The reaction medium is then heated to 50 C. and then 1.2 ml (9.01 mmol, 1.3 mol. eq.) of t-butyl nitrite (purity 90%) are added at this temperature over 30 minutes. The reaction medium is brought to 100 C. and stirred for 1 hour. The yield of isolated product is 40%.
With tetrafluoroboric acid; sodium bicarbonate; sodium nitrite; In diethyl ether; ethanol; water; ethyl acetate; toluene; Petroleum ether; 3-Fluoroquinoline 23.5 g of 3-aminoquinoline and 12.1 g of sodium nitrite in 20 cm3 of distilled water were added cautiously to 100 cm3 of tetrafluoroboric acid cooled to about 0 C., with vigorous stirring, and the reaction mixture was thus stirred for 30 minutes. The suspension was filtered, spin-filtered, washed with 3 times 30 cm3 of ice-cold tetrafluoroboric acid, 50 cm3 of ice-cold ethanol and 4 times 30 cm3 of diethyl ether. The solid was dried in a desiccator (2 kPa) in the region of 20 C. and then taken up in 200 cm3 of toluene and heated at a temperature in the region of 90 C. for 1 hour with stirring. After cooling to about 20 C., the phases of the reaction mass were separated by settling and the insoluble oil was washed with 3 times 100 cm3 of toluene and taken up in 110 cm3 of water, which was basified by slow addition of sodium hydrogen carbonate so that the pH was at about 8. The aqueous phase was extracted with 5 times 100 cm3 of diethyl ether and the organic phases were combined, washed with twice 50 cm3 of water, dried over magnesium sulfate and taken up with vegetable charcoal (3S), filtered and concentrated to dryness under reduced pressure (2 kPa) at a temperature in the region of 45 C. The oil was taken up in 50 cm3 of a 40-60 C. petroleum ether/ethyl acetate mixture (90/10 by volume) and the insoluble material was filtered off, rinsed with twice 25 cm3 of a 40-60 C. petroleum ether/ethyl acetate mixture (90/10 by volume) and dried in a desiccator under reduced pressure (2 kPa) at a temperature in the region of 20 C. The filtrate was concentrated to dryness under reduced pressure (2 kPa) at a temperature in the region of 40 C. The residue obtained was purified by chromatography under atmospheric pressure, on a column of silica gel (particle size 20-45 μ; diameter 5 cm; height 45 cm), eluding with a 40-60 C. petroleum ether/ethyl acetate mixture (90/10 by volume) and collecting 100-cm3 fractions. Fractions 20 to 31 were combined and then concentrated to dryness under reduced pressure (2 kPa) at a temperature in the region of 40 C. 13 g of 3-fluoroquinoline were obtained in the form of a colorless liquid. Mass spectrum: EI m/z=147 M+. base peak m/z=127 [M-HF]+. m/z=120 [M-HCN]+
With tert.-butylnitrite; boron trifluoride diethyl etherate; In 1,2-dichloro-benzene; at 100℃; for 1h; Tert-butylnitrite (4.6 ml, 38.7 mmol) was added dropwise over 15 min to a solution of quinolin-3 -amine (4.61 g, 32.0 mmol) and borontrifluoride-etherate (6 ml, 47.3 mmol) in dichlorobenzene (100 ml). The solution was heated to 100C. After stirring for for 1 h, the solution was cooled to ambient temperature and the dichlorobenzene was decanted leaving 3-fluoroquinoline as a black residue. Method [8] retention time 3.28 min by HPLC (M+ 148).
1.6 g With tetrafluoroboric acid; sodium nitrite; In water; at 0 - 20℃; for 1h; Quinolin-3 -amine (4 g, 27.7 mmol) was added to HBF4 (26 mL, 48 % aqueous solution) portionwise at room temperature, and the mixture was stirred at room temperature until it became homogeneous. The mixture was then cooled to 0C, and a solution of NaN02 (2.4 g, 34.8 mmol) in H20 (8 mL) was added dropwise, when the reaction mixture became heterogeneous. The mixture was stirred at 0C for 1 hour, then the mixture was filtered, and the filtered cake was washed with cold EtOH, then Et20. The resulting solid was dried under vacuum, then suspended in toluene in a round bottom flask and was refluxed for 1.5 hours. The resulting mixture was cooled to room temperature, and then poured into cold water. The organic layer was dried over Na2S04, and then concentrated in vacuo to obtain the desired product (1.6 g). LC-MS: m/z 148.1 (M+H)+
1.6 g Quinolin-3-amine (4 g, 27.7 mmol) was added to HBF4 (26 mL, 48% aqueous solution) portionwise at room temperature, and the mixture was stirred at room temperature until it became homogeneous. The mixture was then cooled to 0 C., and a solution of NaNO2 (2.4 g, 34.8 mmol) in H2O (8 mL) was added dropwise, when the reaction mixture became heterogeneous. The mixture was stirred at 0 C. for 1 hour, then the mixture was filtered, and the filtered cake was washed with cold EtOH, then Et2O. The resulting solid was dried under vacuum, then suspended in toluene in a round bottom flask and was refluxed for 1.5 hours. The resulting mixture was cooled to room temperature, and then poured into cold water. The organic layer was dried over Na2SO4, and then concentrated in vacuo to obtain the desired product (1.6 g). LC-MS: m/z 148.1 (M+H)+
1.6 g With tetrafluoroboric acid; sodium nitrite; In water; at 0 - 20℃; for 1h; Quinolin-3 -amine (4 g, 27.7 mmol) was added to HBF4 (26 mL, 48 % aqueous solution) portionwise at room temperature, and the mixture was stirred at room temperature until it became homogeneous. The mixture was then cooled to 0C, and a solution of NaN02 (2.4 g, 34.8 mmol) in H20 (8 mL) was added dropwise, when the reaction mixture became heterogeneous. The mixture was stirred at 0C for 1 hour, then the mixture was filtered, and the filtered cake was washed with cold EtOH, then Et20. The resulting solid was dried under vacuum, then suspended in toluene in a round bottom flask and was refluxed for 1.5 hours. The resulting mixture was cooled to room temperature, and then poured into cold water. The organic layer was dried over Na2S04, and then concentrated in vacuo to obtain the desired product (1.6 g). LC-MS: m/z 148.1 (M+H)+

  • 3
  • [ 124467-21-6 ]
  • [ 396-31-6 ]
  • 4
  • [ 396-31-6 ]
  • [ 191861-20-8 ]
  • 3-fluoro-8-nitroquinoline [ No CAS ]
YieldReaction ConditionsOperation in experiment
With sulfuric acid; nitric acid; at 0℃; for 2h; A solution of 3: 1 concentrated sulfuric acid/concentrated nitric acid (32 ml) was added dropwise to <strong>[396-31-6]3-fluoroquinoline</strong> (13.04 g, 88.6 mmol) in concentrated sulfuric acid (100 ml) at 00C. After stirring for 2 h, the solution was made alkaline with IO N aq. NaOH and extracted with diethyl ether. The combined organic extracts were dried over magnesium sulfate, filtered, and concentrated under reduced pressure to yield 3-fluoro-8-nitroquinoline and 3-fluoro- 5-nitroquinoline as a yellow solid. Method [7] retention time 3.50 and 3.92 min by HPLC (M+ 193) and (M+ 193).
  • 7
  • quinoline-3-diazonium-tetrafluoroborate [ No CAS ]
  • [ 396-31-6 ]
  • 8
  • [ 396-31-6 ]
  • LIC-KOR reagent [ No CAS ]
  • 3-fluoro-4-quinolinecarboxylic acid [ No CAS ]
  • 9
  • [ 396-31-6 ]
  • [ 213772-63-5 ]
YieldReaction ConditionsOperation in experiment
With n-butyllithium; iodine; diisopropylamine; In tetrahydrofuran; hexane; ethyl acetate; 3-Fluoro-4-iodoquinoline 17.3 cm3 of diisopropylamine in 650 cm3 of tetrahydrofuran were cooled to a temperature in the region of -75 C. and 76 cm3 of a 1.6M solution of butyl lithium in hexane were added, with stirring and under an inert atmosphere, while maintaining the temperature at about -70 C. After stirring for 20 minutes at a temperature in the region of -75 C., a solution of 11.9 g of <strong>[396-31-6]3-fluoroquinoline</strong> in 200 cm3 of tetrahydrofuran was added. The solution obtained was stirred for a further 4 hours at -75 C., followed by addition of a solution of 32.2 g of double-sublimed iodine in 150 cm3 of tetrahydrofuran. After stirring for 2 hours at a temperature in the region of -40 C., the reaction mixture was hydrolyzed with 200 cm3 of a tetrahydrofuran/water mixture (90/10 by volume) and then with 200 cm3 of saturated sodium chloride solution. In the region of 20 C., the mixture was diluted with 300 cm3 of ethyl acetate and washed with twice 250 cm3 of saturated sodium chloride solution. The organic phase was dried over magnesium sulfate, filtered and concentrated to dryness under reduced pressure (2 kPa) at a temperature in the region of 50C. The residue obtained was purified by chromatography under atmospheric pressure, on a column of silica gel (particle size 20-45 μ; diameter 10 cm; height 30 cm), eluding with dichloromethane and collecting 100-cm3 fractions. Fractions 45 to 80 were combined and then concentrated to dryness under reduced pressure (2 kPa) at a temperature in the region of 40 C. 15.1 g of 3-fluoro-4-iodoquinoline were obtained in the form of a cream-colored solid melting at 110 C. Mass spectrum: EI m/z=273 M+. base peak m/z 146 [M-I]+
  • 10
  • [ 396-31-6 ]
  • [ 191861-20-8 ]
  • 11
  • [ 396-31-6 ]
  • [ 1479-96-5 ]
  • 12
  • [ 396-31-6 ]
  • [ 100-59-4 ]
  • [ 1666-96-2 ]
  • 13
  • [ 396-31-6 ]
  • 3,3'-difluoro-[2,2']biquinolinyl [ No CAS ]
  • 14
  • [ 834883-99-7 ]
  • [ 396-31-6 ]
  • 16
  • [ 396-31-6 ]
  • 3,5-Difluoroquinoline [ No CAS ]
  • 17
  • [ 396-31-6 ]
  • [ 155014-05-4 ]
  • 18
  • [ 396-31-6 ]
  • 9-Fluoro-1,7-phenanthroline [ No CAS ]
  • 19
  • [ 396-31-6 ]
  • [ 191861-21-9 ]
  • 20
  • [ 396-31-6 ]
  • [ 250739-99-2 ]
  • 21
  • [ 396-31-6 ]
  • [ 250740-01-3 ]
  • 22
  • [ 396-31-6 ]
  • [ 250740-00-2 ]
  • 23
  • [ 396-31-6 ]
  • 8-fluoro-N-methyl-5-nitroquinoline methanesulfonate [ No CAS ]
  • 24
  • [ 396-31-6 ]
  • 3-fluoro-N-methyl-5-nitroquinoline methanesulfonate [ No CAS ]
  • 25
  • [ 62-53-3 ]
  • p-toluenesulfonic acid-<p-amino-phenyl>-ester [ No CAS ]
  • [ 396-31-6 ]
  • 26
  • [ 175609-72-0 ]
  • [ 396-31-6 ]
  • 27
  • [ 396-31-6 ]
  • [ 846038-33-3 ]
  • [ 155014-05-4 ]
YieldReaction ConditionsOperation in experiment
11%; 37% A solution of 3: 1 concentrated sulfuric acid/concentrated nitric acid (32 ml) was added dropwise to <strong>[396-31-6]3-fluoroquinoline</strong> (13.04 g, 88.6 mmol) in concentrated sulfuric acid (100 ml) at 00C. After stirring for 2 h, the solution was made alkaline with IO N aq. NaOH and extracted with diethyl ether. The combined organic extracts were dried over magnesium sulfate, filtered, and concentrated under reduced pressure to yield 3-fluoro-8-nitroquinoline and 3-fluoro- 5-nitroquinoline as a yellow solid. Method [7] retention time 3.50 and 3.92 min by HPLC (M+ 193) and (M+ 193).3-Fluoro-8-nitroquinoline, 3-fluoro-5-nitroquinoline, and tin(II)chloride- dihydrate (68.23 g, 302 mmol) in ethyl acetate (200 ml) was placed into a preheated oil bath at 600C. After heating for 4 h, the solution was cooled to ambient temperature, diluted with 3 N aq. NaOH, and filtered through a pad of celite. The filtrate was extracted with ethyl acetate, the combined organic extracts were dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was flash chromatographed with 19: 1, 9: 1, 17:3, 4: 1, 3: 1, 7:3, and 3:2 hexane:ethyl acetate as the eluant to afford 2.14 g (11% yield over two steps) 3- fluoroquinolin-8-amine and 7.02 g (37% yield over two steps) of 3-fluoroquinolin-5-amine. Method [6] retention time 1.57 and 4.02 min by HPLC (M+ 163) and (M+ 163).
  • 28
  • quinolin-3-yl trifluoromethanesulfonate [ No CAS ]
  • [ 396-31-6 ]
  • 29
  • [ 580-18-7 ]
  • [ 396-31-6 ]
  • 31
  • [ 396-31-6 ]
  • [ 2925-55-5 ]
YieldReaction ConditionsOperation in experiment
With chlorosulfonic acid; at 130℃; A mixture of <strong>[396-31-6]3-fluoroquinoline</strong> (0.6 g, 4.08 mmol) and HSO3CI (2 mL) in a round bottom flask equipped with a cooling condenser was stirred at 130C overnight. When TLC indicated that the reaction was complete, the resulting mixture was carefully poured into crushed ice, the mixture was extracted with DCM (100 mL x 3), and the combined organic layers were dried over Na2S04, and concentrated. The crude mixture was purified by chromatography (5% Ethyl Acetate/PE) to give the desired 3- fluoroquinoline-8-sulfonyl chloride. 1H NMR (CHLOROFORM-d) δ: 9.15 (d, J = 2.6 Hz, 1H), 8.53 (d, J = 7.6 Hz, 1H), 8.23 (dd, J = 8.2, 0.9 Hz, 1H), 7.97 (dd, J = 8.1, 2.8 Hz, 1H), 7.69 - 7.83 (m, 1H). LC-MS: m/z 246.7 (M+H)+
With chlorosulfonic acid; at 130℃; A mixture of <strong>[396-31-6]3-fluoroquinoline</strong> (0.6 g, 4.08 mmol) and HSO3Cl (2 mL) in a round bottom flask equipped with a cooling condenser was stirred at 130 C. overnight. When TLC indicated that the reaction was complete, the resulting mixture was carefully poured into crushed ice, the mixture was extracted with DCM (100 mL×3), and the combined organic layers were dried over Na2SO4, and concentrated. The crude mixture was purified by chromatography (5% Ethyl Acetate/PE) to give the desired <strong>[396-31-6]3-fluoroquinoline</strong>-8-sulfonyl chloride. 1H NMR (CHLOROFORM-d) δ: 9.15 (d, J=2.6 Hz, 1H), 8.53 (d, J=7.6 Hz, 1H), 8.23 (dd, J=8.2, 0.9 Hz, 1H), 7.97 (dd, J=8.1, 2.8 Hz, 1H), 7.69-7.83 (m, 1H). LC-MS: m/z 246.7 (M+H)+
With chlorosulfonic acid; at 130℃; A mixture of <strong>[396-31-6]3-fluoroquinoline</strong> (0.6 g, 4.08 mmol) and HSO3CI (2 mL) in a round bottom flask equipped with a cooling condenser was stirred at 130C overnight. When TLC indicated that the reaction was complete, the resulting mixture was carefully poured into crushed ice, the mixture was extracted with DCM (100 mL x 3), and the combined organic layers were dried over Na2S04, and concentrated. The crude mixture was purified by chromatography (5% Ethyl Acetate/PE) to give the desired 3- fluoroquinoline-8-sulfonyl chloride. 1H NMR (CHLOROFORM-d) δ: 9.15 (d, J = 2.6 Hz, 1H), 8.53 (d, J = 7.6 Hz, 1H), 8.23 (dd, J = 8.2, 0.9 Hz, 1H), 7.97 (dd, J = 8.1, 2.8 Hz, 1H), 7.69 - 7.83 (m, 1H). LC-MS: m/z 246.7 (M+H)+
  • 32
  • [ 396-31-6 ]
  • N<SUP>1</SUP>-(1-adamantylmethyl)-N<SUP>3</SUP>-(3-fluoroquinolin-4-yl)butane-1,3-diamine [ No CAS ]
  • 33
  • quinoline-3-diazonium tetrafluoroborate [ No CAS ]
  • [ 396-31-6 ]
  • 34
  • [ 396-31-6 ]
  • [ 407-25-0 ]
  • C11H9F4NO [ No CAS ]
YieldReaction ConditionsOperation in experiment
78% General procedure: An oven-dried reaction vessel (4 or 9 ml screw-cap vial) equipped with a stirring bar was allowed to cool to room temperature under vacuum. Activated 4 A molecular sieves (crushed, 50 mg), [Rh-2 ] (and solid substrates, 1.0 equiv.), were added under air. The vial was then depressurized and pressurized with argon gas three times before the addition of dry THF (1 M) (and liquid substrates, distilled over CaH2, 1.0 equiv.). Following the addition of 4,4,5,5-tetramethyl-1,3,2-dioxaborolane (2.0-4.0 equiv. as indicated), the glass vial was placed in a 150 ml stainless-steel autoclave under an argon atmosphere. The autoclave was pressurized and depressurized with hydrogen gas three times before the indicated pressure was set. The reaction mixture was stirred at 25-40 C for 24 h. After the autoclave was carefully depressurized, trifluoroacetic anhydride (3.0 equiv.) and CH2Cl2 (0.5 ml) were added to the crude mixture and stirring was continued for 10 min at room temperature. Alternatively, di-tert-butyl dicarbonate (3.0 equiv.), triethyl amine (3.0 equiv.) and CH2Cl2 (0.5 ml) were added to the reaction mixture and stirring was continued for 2 h at room temperature. The crude was then filtered over fritted funnel and the remaining solid was washed with ethyl acetate (2x 5 ml). The combined solution was concentrated under reduced pressure and submitted to column chromatography (pentane/ethyl acetate or pentane/dichloromethane) to obtain the final product. The indicated diastereoselectivities were determined by GC analysis or from the 19F NMR spectrum immediately after the reaction. NMR yield was calculated using hexafluorobenzene (20 μl, 0.173 mmol) as internal standard.
  • 35
  • [ 396-31-6 ]
  • [ 1309233-77-9 ]
  • [ 59321-69-6 ]
YieldReaction ConditionsOperation in experiment
83% With palladium diacetate; 1-[2-(di-tert-butylphosphanyl)phenyl]-4-methoxy-piperidine; In tetrahydrofuran; toluene; at 110℃; for 12h;Inert atmosphere; Glovebox; General procedure: In a glovebox, fluorinated benzoic acid (0.20 mmol),Pd(OAc)2 (2 mol%), and L5 (2 mol%) were charged to adried two-necked round-bottom reaction flask quippedwith an addition funnel, and ArTi(OiPr)3 (0.40 mmol) in1 cm3mixed solvents of toluene:THF (2:1) was added. Themixture was stirred at room temperature for 15 min andwarmed to 110 C and was allowed to react for 12 h andquenched with 10 cm3of water. The solution was extractedwith dichloromethane (3 × 30 cm3).The combined organicphase was dried over MgSO4and concentrated to drynessunder reduced pressure. The residue was purified by columnchromatography to give the coupling product.
 

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Technical Information

Categories

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[ 396-31-6 ]

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A573340 [311346-65-3]

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