Trifluoroacetic acid → 3-{2-[6-Methyl-4-(4-trifluoromethyl-phenyl)-pyridin-2-yl]-thiazol-4-yl}-benzenesulfonamide

HRID 1989575Notes

Reaction equation

HRID 1989575 reaction equation
C([NH:5][S:6]([C:9]1[CH:14]=[CH:13][CH:12]=[C:11]([C:15]2[N:16]=[C:17]([C:20]3[CH:25]=[C:24]([C:26]4[CH:31]=[CH:30][C:29]([C:32]([F:35])([F:34])[F:33])=[CH:28][CH:27]=4)[CH:23]=[C:22]([CH3:36])[N:21]=3)[S:18][CH:19]=2)[CH:10]=1)(=[O:8])=[O:7])(C)(C)C.C(O)(C(F)(F)F)=O>ClCCl>[CH3:36][C:22]1[N:21]=[C:20]([C:17]2[S:18][CH:19]=[C:15]([C:11]3[CH:10]=[C:9]([S:6]([NH2:5])(=[O:7])=[O:8])[CH:14]=[CH:13][CH:12]=3)[N:16]=2)[CH:25]=[C:24]([C:26]2[CH:31]=[CH:30][C:29]([C:32]([F:35])([F:33])[F:34])=[CH:28][CH:27]=2)[CH:23]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 24760737N-tert-Butyl-3-{2-[6-methyl-4-(4-trifluoromethyl-phenyl)-pyridin-2-yl]-thiazol-4-yl}-benzenesulfonamide

Product 1

HCID 247608133-{2-[6-Methyl-4-(4-trifluoromethyl-phenyl)-pyridin-2-yl]-thiazol-4-yl}-benzenesulfonamideYield 56%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a cooled and stirred solution of N-tert-butyl-3-{2-[6-methyl-4-(4-trifluoromethylphenyl)-pyridin-2-yl]-thiazol-4-yl}-benzenesulfonamide (example 263) (0.40 g, 0.753 mmol) in dichloromethane (10 mL) was added TFA (10 mL) and the reaction mixture was allowed to stir at room temperature for 15 h. The mixture was evaporated to dryness and saturated NaHCO3 solution (5 mL), diethyl ether and heptane were added. The mixture was stirred at room temperature for 1 h, the precipitate was collected by filtration, washed with water and heptane/diethyl ether and dried to yield the title compound as a white solid (0.20 g, 56%). MS (ISP) 474.1 [(M+H)+]; mp>250° C.

Workup

  1. temperatureTo a cooled
  2. customThe mixture was evaporated to dryness and saturated NaHCO3 solution (5 mL), diethyl ether and heptane
  3. additionwere added
  4. stirringThe mixture was stirred at room temperature for 1 h
  5. filtrationthe precipitate was collected by filtration
  6. washwashed with water and heptane/diethyl ether
  7. customdried

Sources & evidence

ORD record
ord-8a25b5b51084449cbea5b5f9edd516ef
Source dataset
uspto-grants-2010_01
Patent number
US07642264B2

Reaction notes

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