反应详情

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.

1. stirringthe reaction was stirred under H2 at RT for 48 h
2. filtrationThe Pd/C was filtered off
3. customthe crude aniline was purified