Acetic Anhydride → HCID 56651994, compound

HRID 1961536Notes

Reaction equation

HRID 1961536 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([C:25]([F:28])([F:27])[F:26])[O:13][N:12]=[C:11]([C:14]3[CH:19]=[CH:18][C:17]([C:20]4([F:24])[CH2:23][NH:22][CH2:21]4)=[CH:16][CH:15]=3)[CH2:10]2)[CH:5]=[C:6]([Cl:8])[CH:7]=1.C(N(CC)CC)C.[C:36](OC(=O)C)(=[O:38])[CH3:37]>ClCCl.O>[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([C:25]([F:27])([F:26])[F:28])[O:13][N:12]=[C:11]([C:14]3[CH:19]=[CH:18][C:17]([C:20]4([F:24])[CH2:23][N:22]([C:36](=[O:38])[CH3:37])[CH2:21]4)=[CH:16][CH:15]=3)[CH2:10]2)[CH:5]=[C:6]([Cl:8])[CH:7]=1

Participants

6

Reactant 3

HCID 7918Acetic AnhydrideHCID 8471TriethylamineHCID 58079827HCID 58079827, compound

Product 1

HCID 56651994HCID 56651994, compoundYield 91%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of 5-(3,5-dichlorophenyl)-3-(4-(3-fluoroazetidin-3-yl)phenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazole (Preparation 15, 200 mg, 0.462 mMol) in dichloromethane (3 mL) was added triethylamine (0.192 mL) followed by acetic anhydride (50.2 μL). The reaction was allowed to stir at room temperature overnight. The solution was diluted with water and allowed to stir for 10 minutes. The mixture was passed through an ISCO Phase Separator. A stream of nitrogen was blown onto the organics then placed under high vacuum to form a white foam 200 mg (91% yield) 1H NMR (400 MHz, CDCl3-d) δ ppm 2.01 (s, 3H) 3.73 (d, 1H) 3.92 (qd, 1H) 4.12 (d, 1H) 4.32-4.56 (m, 3H) 4.59-4.70 (m, 1H) 7.46 (t, 1H) 7.52-7.59 (m, 4H) 7.76 (d, 2H), LC/MS retention time=3.510 min; MS calculated for (C21H16Cl2F4N2O2), 474.052; found 475.0 M+H.

Workup

  1. stirringto stir for 10 minutes

Sources & evidence

ORD record
ord-039402808905495d9312552f78b831a4
Source dataset
uspto-grants-2013_04
Patent number
US08415310B2

Reaction notes

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