2,3-Dichlorobenzoyl chloride → 2,3-dichloro-N-((1RS,2SR)-2-(4-fluorophenyl)-2-hydroxy-1-((4-(trifluoromethyl)phenyl)methyl)ethyl)benzamide

HRID 1610198Notes

Reaction equation

HRID 1610198 reaction equation
Cl.[F:2][C:3]1[CH:8]=[CH:7][C:6]([CH:9]([OH:23])[CH:10]([NH2:22])[CH2:11][C:12]2[CH:17]=[CH:16][C:15]([C:18]([F:21])([F:20])[F:19])=[CH:14][CH:13]=2)=[CH:5][CH:4]=1.[Cl:24][C:25]1[C:33]([Cl:34])=[CH:32][CH:31]=[CH:30][C:26]=1[C:27](Cl)=[O:28].C(=O)([O-])O.[Na+]>C(OCC)(=O)C.O>[Cl:24][C:25]1[C:33]([Cl:34])=[CH:32][CH:31]=[CH:30][C:26]=1[C:27]([NH:22][CH:10]([CH2:11][C:12]1[CH:17]=[CH:16][C:15]([C:18]([F:21])([F:20])[F:19])=[CH:14][CH:13]=1)[CH:9]([C:6]1[CH:5]=[CH:4][C:3]([F:2])=[CH:8][CH:7]=1)[OH:23])=[O:28]

Participants

6

Reactant 3

HCID 179442,3-Dichlorobenzoyl chlorideHCID 516892Sodium BicarbonateHCID 22261728(1RS,2RS)-1-(4-fluorophenyl)-1-hydroxy-3-(4-(trifluoromethyl)phenyl)-2-propylamine hydrochloride

Product 1

HCID 222622952,3-dichloro-N-((1RS,2SR)-2-(4-fluorophenyl)-2-hydroxy-1-((4-(trifluoromethyl)phenyl)methyl)ethyl)benzamideYield 77%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of (1RS,2RS)-1-(4-fluorophenyl)-1-hydroxy-3-(4-(trifluoromethyl)phenyl)-2-propylamine hydrochloride (150 mg, 0.43 mmol) in ethyl acetate (5 ml) were added 2,3-dichlorobenzoyl chloride (135 mg, 0.64 mmol) and saturated aqueous sodium hydrogen carbonate (5 ml) and the mixture was stirred overnight at room temperature. The reaction solution was diluted with water (50 ml) and extracted with ethyl acetate (50 ml×2). The extract was washed with saturated brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1) and recrystallized from ethyl acetate-hexane to give the title compound (161 mg, 77%).

Workup

  1. extractionextracted with ethyl acetate (50 ml×2)
  2. washThe extract was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customevaporated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1)
  6. customrecrystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-6826980b0aab4d9fa9f5c7116c343dd2
Source dataset
uspto-grants-2006_01
Patent number
US06982348B2

Reaction notes

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