反应详情

1-Ethoxycarbonyl-3-(2-dimethylaminoacetamidophenyl)thiourea (5.0 g) was dissolved in the minimum quantity of ethanol and the solution treated with diethyl ether (500 ml), followed by a saturated solution of hydrogen chloride in diethyl ether. The resultant solid was filtered off and recrystallised from ethanol/diethyl ether to give 1-ethoxycarbonyl-3-(2-dimethylaminoacetamidophenyl)thiourea hydrochloride (4.3 g), m.p. 178°-180° C. (with decomposition).

1. filtrationThe resultant solid was filtered off
2. customrecrystallised from ethanol/diethyl ether