Useful new annulation reactions of vicinal dicarboxylic esters
作者:E.J. Corey、Wei-guo Su、Ioannis N. Houpis
DOI:10.1016/s0040-4039(00)85370-8
日期:1986.1
A new annulation process has been developed for the efficient synthesis of the bicyclic keto esters 1 and 6, desired intermediates for the total synthesis of bilobalide (2). A number of other annulations are described which allow the generation from 3 of a variety of functionalized products (7–11).