This thesis mainly introduced that ureas and semicarbazides were synthesized by oxidation of corresponding thioureas and thiosemicarbazides using 30% peroxide as oxidant.

本文主要介绍了以30%浓度的双水化剂化硫脲、氨基硫脲来备相应的脲和氨基脲类化。

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.

嗪是用途很广泛的化,如染料,光敏质,聚单体,另外它们还是加成反应的母体化。