C,C,C-trifluoro-N-(3-nitro-phenyl)-methanesulfonamide → N-(3-Amino-phenyl)-C,C,C-trifluoro-methanesulfonamide
반응식
[F:1][C:2]([F:17])([F:16])[S:3]([NH:6][C:7]1[CH:12]=[CH:11][CH:10]=[C:9]([N+:13]([O-])=O)[CH:8]=1)(=[O:5])=[O:4]>C(O)C.[Pd]>[NH2:13][C:9]1[CH:8]=[C:7]([NH:6][S:3]([C:2]([F:17])([F:1])[F:16])(=[O:5])=[O:4])[CH:12]=[CH:11][CH:10]=1참가 물질
4
실험 절차
1,1,1-trifluoro-N-(3-nitrophenyl)methanesulfonamide 42 (0.5 g, 1.85 mmol) was dissolved in ethanol (20 mL) treated with H2 (30 psi, Parr hydrogenator) for 2 h in the presence of Pd/C (catalytic, 50 mg). The reaction was monitored by TLC until the starting material was no longer detected. The Pd/C residue was removed by filtration over celite pad, followed by rotary evaporation of the solvent obtained 0.44 g of N-(3-aminophenyl)-1,1,1-trifluoromethanesulfonamide 43 (100% yield). The crude product was further used without further purification. MS (ES) m/z 241 (M+H+).