An efficient construction of bicyclic systems containing a seven-membered ring by tandem ring-closing metathesis reactions of dienynes
作者:François-Didier Boyer、Issam Hanna
DOI:10.1016/j.jorganchem.2006.07.014
日期:2006.12
Various (5–7) and (6–7) bicyclic dienes bearing quaternary methyl group and ester functionality have been synthesized from acyclic dienynes by tandem ring-closing metathesis (RCM) reaction. Epoxidation of these conjugated dienes led to bicyclic vinyl oxiranes which undergo acid-catalyzed addition of alcohols to afford highly oxygenated compounds.
通过串联闭环复分解(RCM)反应,从无环二烯合成了各种带有季甲基和酯官能团的(5-7)和(6-7)双环二烯。这些共轭二烯的环氧化导致双环乙烯基环氧乙烷,其经过酸催化的醇加成以提供高度氧化的化合物。