反应详情

A 10.5 gm. portion of 3-[(2-o-propoxyphenyl-4-imidazolyl)methylene]carbazic acid ethyl ester in 100 ml. of diphenyl ether is heated on an oil bath with stirring at 255°-265° C. until effervesence subsides. The mixture is cooled to room temperature. The addition of petroleum ether produces a solid which is recrystallized from methanol with the aid of charcoal giving the desired product as a bright yellow solid, m.p. 197°-200° C.

1. customproduces a solid which
2. customis recrystallized from methanol with the aid of charcoal giving the desired product as a bright yellow solid, m.p. 197°-200° C.