反应详情

1 G. of 1-amino-4-carbamoylthio-2-nitrobenzene in 20 ml. acetone is treated with 3.0 g. methoxy carbonyl isothiocyanate at room temperature for several days. The solution is concentrated and the residue triturated with methanol to afford 4-carbamoylthio-1-(3-methoxycarbonyl-2-thioureido)-2-nitrobenzene.

1. concentrationThe solution is concentrated
2. customthe residue triturated with methanol