N-alkylation reaction of β,γ-alkenyl α-iminoesters was studied, and various tandem reactions were found utilizing this N-alkylation. A useful synthesis of δ-lactones and dienamines was developed by tandem N-alkylation/vinylogous aldol-type reaction. The synthesis of α-quaternary alkenyl amino esters was also developed via the tandem N-alkylation/bromination/C-alkylation. These methods using β,γ-alkenyl
研究了β,γ-烯基α-亚
氨基酯的umpolung N-烷基化反应,并发现了利用这种N-烷基化的各种串联反应。δ-内酯和二烯胺的有用合成是通过串联 N-烷基化/
乙烯醇醛型反应开发的。α-季链烯基
氨基酯的合成也是通过串联的 N-烷基化/
溴化/C-烷基化进行的。这些使用 β,γ-烯基 α-亚
氨基酯的方法在操作上简单且有用,并且表现出广泛的底物通用性。