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

HRID 1928147
Notes
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Reaction equation

HRID 1928147 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]([F:28])([F:27])[F:26])[CH:22]=[C:21]([C:29]4[CH:34]=[CH:33][C:32]([C:35]([F:38])([F:37])[F:36])=[CH:31][CH:30]=4)[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>[F:28][C:25]([F:26])([F:27])[C:23]1[CH:22]=[C:21]([C:29]2[CH:34]=[CH:33][C:32]([C:35]([F:36])([F:38])[F:37])=[CH:31][CH:30]=2)[N:20]=[C:19]([N:17]2[CH:18]=[C:14]([C:11]3[S:10][C:9]([S:6]([NH2:5])(=[O:8])=[O:7])=[CH:13][CH:12]=3)[N:15]=[CH:16]2)[N:24]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 602094245-{1-[4-trifluoromethyl-6-(4-trifluoromethylphenyl)-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid tert-butyl amide

Product 1

HCID 574688925-{1-[4-Trifluoromethyl-6-(4-trifluoromethyl-phenyl)-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid amideYield 16%

Reagents, catalysts & solvents 1

HCID 6344Dichloromethane
Solvent

Procedure

To a cooled and stirred solution of 5-{1-[4-trifluoromethyl-6-(4-trifluoromethyl-phenyl)-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid tert-butyl amide (0.43 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 flash chromatography (heptane/ethyl acetate) and crystallization (dichloromethane/MeOH/hexane) to yield the title compound as a white solid (0.062 g, 8%). MS (ISN) 518.3 [(M−H)−]; mp 281° C.

Workup

  1. temperatureTo a cooled
  2. customThe mixture was evaporated to dryness
  3. custompurified by flash chromatography (heptane/ethyl acetate) and crystallization (dichloromethane/MeOH/hexane)

Sources & evidence

ORD record
ord-38ba1e210003480abd3e79e268e29b2d
Source dataset
uspto-grants-2012_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08183262B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes