A Concise Synthesis of the Tricyclic Skeleton of Pleuromutilin and a New Approach to Cycloheptenes
作者:Eric Bacqué、François Pautrat、Samir Z. Zard
DOI:10.1021/ol027312m
日期:2003.2.1
A short synthesis of the tricyclic skeleton of pleuromutilin is reported, featuring an unusually efficient 8-endo-trig radical cyclization of a xanthate precursor. In the course of this study, a one-carbon ring expansion leading to cycloheptenes was uncovered.