Sodium Carbonate → 4-Pyridin-3-yl-6-trifluoromethyl-2-[4-(3-trifluoromethylpyridin-2-yl)piperazin-1-yl]-1H-benzoimidazole

HRID 730715Notes

Reaction equation

HRID 730715 reaction equation
Br[C:2]1[C:10]2[N:9]=[C:8]([N:11]3[CH2:16][CH2:15][N:14]([C:17]4[C:22]([C:23]([F:26])([F:25])[F:24])=[CH:21][CH:20]=[CH:19][N:18]=4)[CH2:13][CH2:12]3)[NH:7][C:6]=2[CH:5]=[C:4]([C:27]([F:30])([F:29])[F:28])[CH:3]=1.C(B(CC)[C:34]1[CH:35]=[N:36][CH:37]=[CH:38][CH:39]=1)C.C([O-])([O-])=O.[Na+].[Na+]>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C(COC)OC>[N:36]1[CH:37]=[CH:38][CH:39]=[C:34]([C:2]2[C:10]3[N:9]=[C:8]([N:11]4[CH2:12][CH2:13][N:14]([C:17]5[C:22]([C:23]([F:25])([F:24])[F:26])=[CH:21][CH:20]=[CH:19][N:18]=5)[CH2:15][CH2:16]4)[NH:7][C:6]=3[CH:5]=[C:4]([C:27]([F:30])([F:28])[F:29])[CH:3]=2)[CH:35]=1

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 6428513-(Diethylboryl)pyridineHCID 116704454-Bromo-6-trifluoromethyl-2-[4-(3-trifluoromethylpyridin-2-yl)piperazin-1-yl]-1H-benzoimidazole

Product 1

HCID 578350224-Pyridin-3-yl-6-trifluoromethyl-2-[4-(3-trifluoromethylpyridin-2-yl)piperazin-1-yl]-1H-benzoimidazole

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 80711,2-DimethoxyethaneSolvent

Procedure

A mixture of 4-bromo6-trifluoromethyl-2-[4-(3-trifluoromethylpyridin-2-yl)piperazin-1-yl]-1H-benzoimidazole (99 mg, 0.2 mmol, Example 7), diethyl(3-pyridyl)borane (37 mg, 0.25 mmol, Aldrich), Pd(PPh3)4 (23 mg, 0.02 mmol, Aldrich), Na2CO3 (32 mg, 0.3 mmol) and dimethoxyethane (1 mL) was subjected to microwave irradiation at 200° C. with stirring for 40 min. The solvent was removed in vacuo and the residue was purified by silica gel chromatography, eluting with 60% EtOAc/hexane, to give the title compound as a yellow amorphous solid. MS (ESI, pos. ion) m/z: 493 (M+1).

Workup

  1. customirradiation at 200° C.
  2. customThe solvent was removed in vacuo
  3. customthe residue was purified by silica gel chromatography
  4. washeluting with 60% EtOAc/hexane

Sources & evidence

ORD record
ord-52c08e27dfa74794af93903174b1dfcc
Source dataset
uspto-grants-2009_09
Patent number
US07582761B2

Reaction notes

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