Water → 2-{4-[6-chloro-2-(1-chloro-1-methylethyl)-5-(trifluoromethyl)-1H-benzimidazol-1-yl]phenyl}ethyl acetate

HRID 858546Notes

Reaction equation

HRID 858546 reaction equation
[C:1]([O:4][CH2:5][CH2:6][C:7]1[CH:12]=[CH:11][C:10]([N:13]2[C:17]3[CH:18]=[C:19]([Cl:26])[C:20]([C:22]([F:25])([F:24])[F:23])=[CH:21][C:16]=3[N:15]=[C:14]2[C:27](O)([CH3:29])[CH3:28])=[CH:9][CH:8]=1)(=[O:3])[CH3:2].S(Cl)([Cl:33])=O.O>ClCCl>[C:1]([O:4][CH2:5][CH2:6][C:7]1[CH:12]=[CH:11][C:10]([N:13]2[C:17]3[CH:18]=[C:19]([Cl:26])[C:20]([C:22]([F:24])([F:23])[F:25])=[CH:21][C:16]=3[N:15]=[C:14]2[C:27]([Cl:33])([CH3:29])[CH3:28])=[CH:9][CH:8]=1)(=[O:3])[CH3:2]

Participants

5

Reactant 3

HCID 962WaterHCID 24386Thionyl ChlorideHCID 218757612-{4-[6-chloro-2-(1-hydroxy-1-methylethyl)-5-(trifluoromethyl)-1H-benzimidazol-1-yl]phenyl}ethyl acetate

Product 1

HCID 218761642-{4-[6-chloro-2-(1-chloro-1-methylethyl)-5-(trifluoromethyl)-1H-benzimidazol-1-yl]phenyl}ethyl acetateYield 87.4%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 2-{4-[6-chloro-2-(1-hydroxy-1-methylethyl)-5-(trifluoromethyl)-1H-benzimidazol-1-yl]phenyl}ethyl acetate (300 mg, 0.68 mmol) in dichloromethane (15 ml) was added thionyl chloride (0.07 ml, 1.02 mmol) and the reaction mixture was refluxed overnight. The reaction mixture was poured into water (10 ml) and the mixture was extracted with dichloromethane (30 ml). The organic layer was washed with brine (10 ml), then dried (Na2SO4). The solvent was removed to give 273 mg (87%) of the title compound as white amorphous.

Workup

  1. temperaturethe reaction mixture was refluxed overnight
  2. extractionthe mixture was extracted with dichloromethane (30 ml)
  3. washThe organic layer was washed with brine (10 ml)
  4. dry with materialdried (Na2SO4)
  5. customThe solvent was removed

Sources & evidence

ORD record
ord-540e5e2999224dc2b567f361af584fca
Source dataset
uspto-grants-2006_12
Patent number
US07148234B2

Reaction notes

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