The reactions of stannyl substituted acetals with olefins resulted in the elimination of both the triorganostannyl group and the alkoxy group on the same carbon, and the production of the corresponding alkoxycyclopropanes in good yields. The stereospecificity of the present reaction suggests that γ-elimination of tin is very fast.
锡取代的
乙醛与烯烃反应后,同一碳上的三
有机锡基和烷氧基均被消除,并以良好的收率生成相应的烷氧基
环丙烷。本反应的立体特异性表明,δ-消除
锡的速度非常快。