Water → HCID 21876061, compound

HRID 858547Notes

Reaction equation

HRID 858547 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](Cl)([CH3:29])[CH3:28])=[CH:9][CH:8]=1)(=[O:3])[CH3:2].[N-:31]=[N+:32]=[N-:33].[Na+].O>CN(C=O)C>[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:23])([F:25])[F:24])=[CH:21][C:16]=3[N:15]=[C:14]2[C:27]([N:31]=[N+:32]=[N-:33])([CH3:29])[CH3:28])=[CH:9][CH:8]=1)(=[O:3])[CH3:2]

Participants

5

Reactant 3

HCID 962WaterHCID 33557Sodium AzideHCID 218761642-{4-[6-chloro-2-(1-chloro-1-methylethyl)-5-(trifluoromethyl)-1H-benzimidazol-1-yl]phenyl}ethyl acetate

Product 1

HCID 21876061HCID 21876061, compoundYield 42%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 2-{4-[6-chloro-2-(1-chloro-1-methylethyl)-5-(trifluoromethyl)-1H-benzimidazol-1-yl]phenyl}ethyl acetate (step 1, 273 mg, 0.68 mmol), sodium azide (88 mg, 1.36 mmol), KI (112 mg, 0.68 mmol) in DMF (8 ml) was stirred under nitrogen at room temperature for 5.5 h. The reaction mixture was poured into water (5 ml) and the aqueous mixture was extracted with ethyl acetate(30 ml). The organic layer was washed with water (5 ml) and brine (10 ml), then dried (Na2SO4). After removal of solvent, the crude product was purified by flash column chromatography eluting with hexane/ethyl acetate (2/1) to afford 133 mg (42%) of the title compound as yellow oil.

Workup

  1. extractionthe aqueous mixture was extracted with ethyl acetate(30 ml)
  2. washThe organic layer was washed with water (5 ml) and brine (10 ml)
  3. dry with materialdried (Na2SO4)
  4. customAfter removal of solvent
  5. customthe crude product was purified by flash column chromatography
  6. washeluting with hexane/ethyl acetate (2/1)

Sources & evidence

ORD record
ord-15b89d6af1254ad0953ca3cb3dd438f2
Source dataset
uspto-grants-2006_12
Patent number
US07148234B2

Reaction notes

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