Prelog-Djerassi lactone. Preparation of the grieco intermediate from (−)--pulegenic acid.
作者:Salih Hacini、Maurice Santelli
DOI:10.1016/s0040-4020(01)89521-1
日期:1989.1
The Grieco intermediate 2, for the synthesis of the Prelog-Djerassi lactone, was obtained from trans-pulegenic acid 3 in 6 steps in 43 % overall yield; recycling unwanted diastereoisomer 8(S), increased the yield to 56 %.