A new convenient and general one-step route for preparing azines by treating aromtic aldehydes and semicarbazide with anhydrous zinc chloride as catalyst is described. 吖嗪是用途很广泛的化合物,如作染料,光敏物质,聚合单体,另外它们还是加成反应的母体化合物。
The review discusses many ways of preparing hydrazine through hydrolysis of Azine, and the effects of catalyst to yield of hydrazine by hydrolyzing azine. 摘要文中讨论了酮连氮水解制备肼的各种方法及催化剂对酮连氮水解和肼收率的影响。