Construction of Polycyclic β-Ketoesters Using a Homoconjugate Addition/Decarboxylative Dieckmann Annulation Strategy
作者:Zhiwei Chen、Allen Y. Hong、Xin Linghu
DOI:10.1021/acs.joc.8b00754
日期:2018.6.1
arene-fused cyclic β-ketoesters from 2-iodoaryl esters and 1,1-cyclopropane diesters is detailed. The synthetic method takes advantage of a CuI·SMe2-mediated homoconjugate addition followed by a decarboxylative Dieckmann cyclization to afford valuable polycyclic building blocks. Various iodoaryl esters and 1,1-cyclopropane diesters were evaluated, and the limitations of both reactions are discussed. Several
详细说明了由2-碘芳基酯和1,1-环丙烷二酯构建芳烃稠合的环状β-酮酸酯。该合成方法利用了CuI·SMe 2介导的均聚物加成,然后进行脱羧Dieckmann环化的优势,从而提供了有价值的多环结构单元。评价了各种碘代芳基酯和1,1-环丙烷二酯,并讨论了两个反应的局限性。详细介绍了几种机械探针,并介绍了其综合应用。