2-(Tributylstannyl)pyridine → 7-Pyridin-2-yl-5-(trifluoromethyl)-2-{4-[3-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-1H-benzoimidazole

HRID 730744Notes

Reaction equation

HRID 730744 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([Sn](CCCC)(CCCC)[C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][N:37]=1)CCC>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.O1CCOCC1>[N:37]1[CH:38]=[CH:39][CH:40]=[CH:41][C:36]=1[C:2]1[C:10]2[NH:9][C:8]([N:11]3[CH2:12][CH2:13][N:14]([C:17]4[C:22]([C:23]([F:25])([F:24])[F:26])=[CH:21][CH:20]=[CH:19][N:18]=4)[CH2:15][CH2:16]3)=[N:7][C:6]=2[CH:5]=[C:4]([C:27]([F:30])([F:28])[F:29])[CH:3]=1

Participants

5

Reactant 2

HCID 6077842-(Tributylstannyl)pyridineHCID 116704454-Bromo-6-trifluoromethyl-2-[4-(3-trifluoromethylpyridin-2-yl)piperazin-1-yl]-1H-benzoimidazole

Product 1

HCID 1785060737-Pyridin-2-yl-5-(trifluoromethyl)-2-{4-[3-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-1H-benzoimidazole

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Procedure

A mixture of 4-bromo-6-trifluoromethyl-2-[4-(3-trifluoromethylpyridin-2-yl)piperazin-1-yl]-1H-benzoimidazole (148 mg, 0.3 mmol, Example 7), 2-tributylstannylpyridine (148 mg, 0.5 mmol, Frontier), Pd(PPh3)4 (46 mg, 0.04 mmol, Aldrich) and 1,4-dioxane (1 mL) was subjected to microwave irradiation at 140° C. with stirring for 60 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 140° 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-c773017fcbb44f64968aab629074cb4d
Source dataset
uspto-grants-2009_09
Patent number
US07582761B2

Reaction notes

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