4-(3,4-Dinitro-phenoxy)-2-methylsulfonyl-pyrimidine → 4-(2-Methanesulfonyl-pyrimidin-4-yloxy)-benzene-1,2-diamine
反応式
[N+:1]([C:4]1[CH:5]=[C:6]([CH:18]=[CH:19][C:20]=1[N+:21]([O-])=O)[O:7][C:8]1[CH:13]=[CH:12][N:11]=[C:10]([S:14]([CH3:17])(=[O:16])=[O:15])[N:9]=1)([O-])=O>CO.[Pd]>[CH3:17][S:14]([C:10]1[N:9]=[C:8]([O:7][C:6]2[CH:5]=[C:4]([NH2:1])[C:20]([NH2:21])=[CH:19][CH:18]=2)[CH:13]=[CH:12][N:11]=1)(=[O:15])=[O:16]参加物
4
実験手順
4-(3,4-Dinitro-phenoxy)-2-methylsulfonyl-pyrimidine (Step A, 1.0 g, 2.9 mmol, 1.0 eq.) was dissolved in MeOH (50 mL) and the atmosphere was replaced by argon. A catalytic amount of 10% Pd/C was added and the argon was replaced by a H2 atmosphere. The mixture was stirred for 16 h at RT at atmospheric pressure. More Pd/C was added after the atm was replaced by argon, then the reaction was stirred under H2 at RT for 48 h. The Pd/C was filtered off and the crude aniline was purified using column chromatography (0-100% EtOAc in hexanes) to give 4-(2-methanesulfonyl-pyrimidin-4-yloxy)-benzene-1,2-diamine.