它仍然是在反應(yīng)中生成過渡狀態(tài)的雜環(huán)的實(shí)例.It represents an example of a heterocycle being formed as transient species.在反應(yīng)過程中被還原的雜環(huán)(46)可以方便地分離出來.The reduced heterocycle 46 conveniently separates out during the reaction.亞胺基雜環(huán)丙烷季銨鹽的陽離子,一定是按協(xié)同反應(yīng)...