Heptane → 5-{1-[6-trifluoromethyl-4-(4-trifluoromethyl-phenyl)-pyridin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid tert-butylamide

HRID 1928328Notes

Reaction equation

HRID 1928328 reaction equation
C([Sn](CCCC)(CCCC)[C:6]1[N:7]=[CH:8][N:9]([C:11]2[CH:16]=[C:15]([C:17]3[CH:22]=[CH:21][C:20]([C:23]([F:26])([F:25])[F:24])=[CH:19][CH:18]=3)[CH:14]=[C:13]([C:27]([F:30])([F:29])[F:28])[N:12]=2)[CH:10]=1)CCC.[C:39]([NH:43][S:44]([C:47]1[S:48][C:49](Br)=[CH:50][CH:51]=1)(=[O:46])=[O:45])([CH3:42])([CH3:41])[CH3:40].CCCCCCC>C1(C)C=CC=CC=1>[C:39]([NH:43][S:44]([C:47]1[S:48][C:49]([C:6]2[N:7]=[CH:8][N:9]([C:11]3[CH:16]=[C:15]([C:17]4[CH:18]=[CH:19][C:20]([C:23]([F:25])([F:26])[F:24])=[CH:21][CH:22]=4)[CH:14]=[C:13]([C:27]([F:28])([F:29])[F:30])[N:12]=3)[CH:10]=2)=[CH:50][CH:51]=1)(=[O:45])=[O:46])([CH3:42])([CH3:40])[CH3:41]

Participants

5

Reactant 3

HCID 8900HeptaneHCID 27571875-Bromo-N-tert-butylthiophene-2-sulfonamideHCID 574688342-(4-Tributylstannanyl-imidazol-1-yl)-6-trifluoromethyl-4-(4-trifluoromethyl-phenyl)-pyridine

Product 1

HCID 247608945-{1-[6-trifluoromethyl-4-(4-trifluoromethyl-phenyl)-pyridin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid tert-butylamideYield 57.4%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent2×

Procedure

A stirred mixture of 2-(4-tributylstannanyl-imidazol-1-yl)-6-trifluoromethyl-4-(4-trifluoromethyl-phenyl)-pyridine (Example G.12) (0.570 g, 0.88 mmol), commercially available 5-bromo-thiophene-2-sulfonic acid tert-butylamide (0.295 g, 0.99 mmol), tetrakis(triphenyl-phosphine)palladium (0.061 g, 0.046 mmol) in toluene (6 mL) was heated under reflux conditions for 16 h. Cooled to rt, some precipitate occurred, diluted with toluene (˜5 mL), added heptane, filtered the precipitate off, washed with toluene/heptane, dried in HV to give the title compound as a white solid (290 mg, 57%). MS (ISP) 575.2 [(M+H)+]; mp>250° C.

Workup

  1. temperaturewas heated under reflux conditions for 16 h
  2. filtrationfiltered the precipitate off,
  3. washwashed with toluene/heptane
  4. customdried in HV

Sources & evidence

ORD record
ord-536c9fd52678452cb637b745c2f23325
Source dataset
uspto-grants-2012_05
Patent number
US08183262B2

Reaction notes

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