Highly practical synthetic methods were developed for the C- and N-selective Grignard addition reactions of N-4-MeOC6H4-protected α-aldimino esters in the presence or absence of zinc(II) chloride. Diastereoselective C-alkyl addition, tandem C-alkyl addition–N-alkylation, and some transformations to synthetically useful optically active azacycles were demonstrated.
在存在或不存在
氯化锌(II)的情况下,开发了高度实用的合成方法,用于N -4-MeOC 6 H 4保护的α-己二酰胺酯的C-和N-选择性
格氏试剂加成反应。证明了非对映选择性的C-烷基加成,串联的C-烷基加成-N-烷基化,以及向合成有用的旋光氮
杂环化合物的一些转化。