反应详情

2.6 G. 1,2-diamino-4-thiocyanatobenzene in 48 ml. acetone is treated overnight with 8 g. methoxy carbonyl isothiocyanate at room temperature. The solution is concentrated and the residue triturated with methanol and recrystallized from methanol-chloroform, yielding pure 1,2-bis-(3-methoxycarbonyl-2-thioureido)-4-thiocyanatobenzene.

1. customat room temperature
2. concentrationThe solution is concentrated
3. customthe residue triturated with methanol
4. customrecrystallized from methanol-chloroform