桉树脑类除草剂环庚草醚的合成

Synthesis of the Herbicide Cinmethylin

α－蒎烯与硫酸反应，给出１，４－桉树脑。再与锂、１，３－丙二胺反应，得萜品－４－醇，再气化后，与α－甲基氯苄反应得到环庚草醚。

?pinene reacts with sulphuric acid to give 1,4-cineole,which then was treated by lithium and 1,3-diaminopropane to obtain terpinen-4-ol.The latter was oxidated,and then reacted with 2-methyl benzyl chloride to yield cinmethylin.