反应详情

A mixture consisting of 8.6 g of α-acetylaminoacrylic acid, 20 g of 2-aminobenzenethiol and 50 ml of ethanol was heated for an hour. After the ethanol was distilled off, ether was added to the residue so as to cause crystallization. Upon recrystallization from ethanol, there was obtained 8.9 g of the desired product. Its melting point (m.p.) was 143°-144° C.

1. temperaturewas heated for an hour
2. distillationAfter the ethanol was distilled off
3. additionether was added to the residue so as
4. customcrystallization
5. customUpon recrystallization from ethanol