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在无水乙醚中 1 -锂代环己烯和烯丙基溴化镁于无水溴化锌作用下发生金属化克兰荪重排反应 ,生成 2 -烯丙基 -1 ,1 -偕二金属环己烷。通过对温度、溶剂量和投料顺序等重排反应主要影响因素的考察和优化 ,可使 2 -烯丙基 -1 ,1 -偕二金属环己烷的收率达到 65 %。
In the anhydrous ether 1 - lithium cyclohexene and allyl magnesium bromide in the anhydrous zinc bromide metal under the action of Claisen rearrangement reaction to generate 2 - allyl - 1, 1 - gem di Metal cyclohexane. The yield and yield of 2 - allyl - 1, 1 - geminated metallohexane can reach 65% through the investigation and optimization of the main influencing factors of the rearrangement reaction such as temperature, solvent amount and feeding order.