Trifluoroacetic acid → 5-{1-[4-(3,4-Dichloro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid amide

HRID 1928227Notes

Reaction equation

HRID 1928227 reaction equation
C([NH:5][S:6]([C:9]1[S:10][C:11]([C:14]2[N:15]=[CH:16][N:17]([C:19]3[N:24]=[C:23]([C:25]4[CH:30]=[CH:29][C:28]([Cl:31])=[C:27]([Cl:32])[CH:26]=4)[CH:22]=[C:21]([C:33]([F:36])([F:35])[F:34])[N:20]=3)[CH:18]=2)=[CH:12][CH:13]=1)(=[O:8])=[O:7])(C)(C)C.C(O)(C(F)(F)F)=O>ClCCl>[Cl:32][C:27]1[CH:26]=[C:25]([C:23]2[CH:22]=[C:21]([C:33]([F:35])([F:34])[F:36])[N:20]=[C:19]([N:17]3[CH:18]=[C:14]([C:11]4[S:10][C:9]([S:6]([NH2:5])(=[O:8])=[O:7])=[CH:13][CH:12]=4)[N:15]=[CH:16]3)[N:24]=2)[CH:30]=[CH:29][C:28]=1[Cl:31]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 602094465-{1-[4-(3,4-dichloro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid tert-butyl amide

Product 1

HCID 574689735-{1-[4-(3,4-Dichloro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid amideYield 74.9%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a cooled and stirred solution of 5-{1-[4-(3,4-dichloro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid tert-butyl amide (0.34 g) in dichloromethane (6 mL) was added TFA (6 mL) and the reaction mixture was allowed to stir at room temperature for 15 h. The mixture was evaporated to dryness and purified by column chromatography on silica gel (dichloromethane/MeOH/NH4OH 80:10:1) and crystallization (MeOH/diethyl ether) to yield the title compound as a light yellow solid (0.23 g, 62%). MS (ISN) 520.3 [(M−H)−]; mp 282° C. (dec.).

Workup

  1. temperatureTo a cooled
  2. customThe mixture was evaporated to dryness
  3. custompurified by column chromatography on silica gel (dichloromethane/MeOH/NH4OH 80:10:1) and crystallization (MeOH/diethyl ether)

Sources & evidence

ORD record
ord-5494eb86307d45278b5709e27e301ae9
Source dataset
uspto-grants-2012_05
Patent number
US08183262B2

Reaction notes

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