p-Toluenesulfonyl isocyanate → 2-(4-{[5-Chloro-2-nitro-4-(trifluoromethyl)phenyl]amino}phenyl)ethyl (4-methylphenyl)sulfonylcarbamate
反応式
[Cl:1][C:2]1[C:3]([C:21]([F:24])([F:23])[F:22])=[CH:4][C:5]([N+:18]([O-:20])=[O:19])=[C:6]([NH:8][C:9]2[CH:14]=[CH:13][C:12]([CH2:15][CH2:16][OH:17])=[CH:11][CH:10]=2)[CH:7]=1.[C:25]1([CH3:37])[CH:30]=[CH:29][C:28]([S:31]([N:34]=[C:35]=[O:36])(=[O:33])=[O:32])=[CH:27][CH:26]=1>ClCCl>[CH3:37][C:25]1[CH:30]=[CH:29][C:28]([S:31]([NH:34][C:35](=[O:36])[O:17][CH2:16][CH2:15][C:12]2[CH:13]=[CH:14][C:9]([NH:8][C:6]3[CH:7]=[C:2]([Cl:1])[C:3]([C:21]([F:22])([F:23])[F:24])=[CH:4][C:5]=3[N+:18]([O-:20])=[O:19])=[CH:10][CH:11]=2)(=[O:33])=[O:32])=[CH:27][CH:26]=1参加物
4
実験手順
To a stirred solution of 2-(4-{[5-chloro-2-nitro-4-(trifluoromethyl)phenyl]amino}phenyl)ethanol (step 2 of Example 104, 1.0 g, 2.77 mmol) in dichloromethane (45 ml) was added p-toluenesulfonyl isocyanate (574 mg, 2.91 mmol), and the mixture was stirred at room temperature for 2 h. The mixture was quenched with water (100 ml). The organic layer was separated. The aqueous layer was extracted with dichloromethane (100 ml×3). The combined organic layer was washed with brine (50 ml), dried (MgSO4), and concentrated. Purification by flash column chromatography eluting with hexane/ethyl acetate (gradient elution from 2:1 to 1:1) to afford 1.51 g (98%) of the title compound as an orange solid.