Enantioselective Synthesis of Spiroacetals via Silver(I)-Promoted Alkylation of Hemiacetals: Total Synthesis of Cephalosporolides E and F
作者:Stanley Chang、Robert Britton
DOI:10.1021/ol302694s
日期:2012.12.7
A silver(I)-promoted intramolecular hemiacetal alkylation has been developed that converts readily available keto-chlorodiols into functionalized spiroacetals containing 5,5-, 5,6-, and 5,7-membered ring systems. The efficiency of this process is demonstrated in a concise total synthesis of the fungal metabolites cephalosporolides E and F.
已经开发了银(I)促进的分子内半缩醛烷基化,其将容易获得的酮-氯二醇转化为含有5,5-,5,6-和5,7-元环系统的官能化的螺缩醛。此过程的效率在真菌代谢产物头孢菌内酯E和F的简明全合成中得到了证明。