Potassium Carbonate → HCID 44430149, compound

HRID 2043272Notes

Reaction equation

HRID 2043272 reaction equation
[Cl:1][C:2]1[C:15]([Cl:16])=[CH:14][C:5]2[NH:6][C:7]([CH2:9][C:10]([F:13])([F:12])[F:11])=[N:8][C:4]=2[CH:3]=1.C(=O)([O-])[O-].[K+].[K+].[F:23][C:24]([F:34])([F:33])[C:25]1[CH:32]=[CH:31][CH:30]=[CH:29][C:26]=1[CH2:27]Br>CN(C=O)C>[Cl:16][C:15]1[C:2]([Cl:1])=[CH:3][C:4]2[N:8]([CH2:27][C:26]3[CH:29]=[CH:30][CH:31]=[CH:32][C:25]=3[C:24]([F:23])([F:33])[F:34])[C:7]([CH2:9][C:10]([F:12])([F:13])[F:11])=[N:6][C:5]=2[CH:14]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 1230571-(Bromomethyl)-2-(trifluoromethyl)benzeneHCID 116519105,6-dichloro-2-(2,2,2-trifluoro-ethyl)-1H-benzimidazole

Product 1

HCID 44430149HCID 44430149, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To 5,6-dichloro-2-(2,2,2-trifluoro-ethyl)-1H-benzimidazole (577 mg) in DMF (6 mL) was added potassium carbonate powder (890 mg) and 2-(trifluoromethyl)benzyl bromide (1.54 g). The resulting mixture was stirred at room temperature overnight. The reaction mixture was quenched with water, extracted with EtOAc, and dried over Na2SO4. The crude product was purified by silica gel chromatography (5%-40% EtOAc/hexanes), followed by recrystallization with hexanes to yield the title compound as an orange-brown solid.

Workup

  1. customThe reaction mixture was quenched with water
  2. extractionextracted with EtOAc
  3. dry with materialdried over Na2SO4
  4. customThe crude product was purified by silica gel chromatography (5%-40% EtOAc/hexanes)
  5. customfollowed by recrystallization with hexanes

Sources & evidence

ORD record
ord-232e0c790a37485c9127ecfafed797d6
Source dataset
uspto-grants-2013_11
Patent number
US08586616B2

Reaction notes

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