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

HRID 1989468
Notes
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Reaction equation

HRID 1989468 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][CH:28]=[C:27]([Cl:31])[CH:26]=4)[CH:22]=[C:21]([C:32]([F:35])([F:34])[F:33])[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:31][C:27]1[CH:26]=[C:25]([C:23]2[CH:22]=[C:21]([C:32]([F:34])([F:33])[F:35])[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][CH:28]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 602094345-{1-[4-(3-Chloro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid tert-butyl amide

Product 1

HCID 574689345-{1-[4-(3-Chloro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid amideYield 10%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a cooled and stirred solution of 5-{1-[4-(3-chloro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid tert-butyl amide (0.4 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 (0.036 g, 5%). MS (ISP) 486.2 [(M+H)+]; mp 280° 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-3e621b3ce1af483c93583441b67492c7
Source dataset
uspto-grants-2010_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07642264B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes