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Trifluoroacetic acid → 3'-[4-(3,4-Difluoro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-biphenyl-3-sulfonic acid amide

HRID 1928424
Notes
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Reaction equation

HRID 1928424 reaction equation
C([NH:5][S:6]([C:9]1[CH:10]=[C:11]([C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([C:21]3[N:26]=[C:25]([C:27]4[CH:32]=[CH:31][C:30]([F:33])=[C:29]([F:34])[CH:28]=4)[CH:24]=[C:23]([C:35]([F:38])([F:37])[F:36])[N:22]=3)[CH:16]=2)[CH:12]=[CH:13][CH:14]=1)(=[O:8])=[O:7])(C)(C)C.C(O)(C(F)(F)F)=O>ClCCl>[F:34][C:29]1[CH:28]=[C:27]([C:25]2[CH:24]=[C:23]([C:35]([F:38])([F:36])[F:37])[N:22]=[C:21]([C:17]3[CH:16]=[C:15]([C:11]4[CH:12]=[CH:13][CH:14]=[C:9]([S:6]([NH2:5])(=[O:7])=[O:8])[CH:10]=4)[CH:20]=[CH:19][CH:18]=3)[N:26]=2)[CH:32]=[CH:31][C:30]=1[F:33]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 602094803'-[4-(3,4-Difluoro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-biphenyl-3-sulfonic acid tert-butylamide

Product 1

HCID 574690703'-[4-(3,4-Difluoro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-biphenyl-3-sulfonic acid amideYield 67.4%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a cooled and stirred solution of 3′-[4-(3,4-difluoro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-biphenyl-3-sulfonic acid tert-butylamide (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, poured into 2N NaHCO3 solution (20 ml) and extracted with ethyl acetate (3×50 ml). The combined organic layers were washed with brine (50 ml), dried (MgSO4) and evaporated. Further purification by crystallization (ethyl acetate/heptane) yielded the title compound as a white solid (0.26 g, 53%). MS (ISP) 492.1 [(M+H)+]; mp 211° C.

Workup

  1. temperatureTo a cooled
  2. customThe mixture was evaporated to dryness
  3. additionpoured into 2N NaHCO3 solution (20 ml)
  4. extractionextracted with ethyl acetate (3×50 ml)
  5. washThe combined organic layers were washed with brine (50 ml)
  6. dry with materialdried (MgSO4)
  7. customevaporated
  8. customFurther purification
  9. customby crystallization (ethyl acetate/heptane)

Sources & evidence

ORD record
ord-a4adbf70002c4541aab8c302e21069a6
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