reaction, involves two carbon–carbon bond‐forming steps. Strategic use of a tricyclic intermediate can arrest the process if the second step requires formation of a bridgehead double bond. Use of this Bredt's rule constraint results in the production of carbocyclic amino ketones, key alkaloid building blocks.
                                    Ti II介导的由烯烃和酰胺形成的
环丙胺,Kulinkovich-de Meijere反应涉及两个碳-碳键形成步骤。如果第二步需要形成桥头双键,则
三环中间体的战略性使用可中止该过程。使用此Bredt规则约束会产生碳环
氨基酮(关键
生物碱构件)的产生。