ethyl cyanoacetate 中文意思是什麼
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Using ethyl cyanoacetate, triethyl orthoformate and methylhydrazine as main raw materials, the herbicide pyrazosulfuron was prepared through the reactions of substitution, amination, cylclization, diazotization and chlorosulfonation
摘要以氰乙酸乙酯、原甲酸三乙酯和甲肼等為主要原料，通過取代、胺化、環化、重氮化和氯磺化等反應制得了除草劑吡嘧磺隆原料藥。
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