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,染料,光敏质,聚合单体,另外它们还是加成反应的母体化合。
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,染料,光敏质,聚合单体,另外它们还是加成反应的母体化合。
This thesis mainly introduced that ureas and semicarbazides were synthesized by oxidation of corresponding thioureas and thiosemicarbazides using 30% peroxide as oxidant.
本文主要绍了以30%浓度的双氧水为氧化剂氧化硫、硫来制备相应的和类化合。
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