Gold(I)-Catalyzed Cycloisomerization of 1,7- and 1,8-Enynes: Application to the Synthesis of a New Allocolchicinoid
作者:François-Didier Boyer、Xavier Le Goff、Issam Hanna
DOI:10.1021/jo800797c
日期:2008.7.1
Gold(I)-catalyzedcycloisomerization of 1,7- and 1,8-enyne propargylic acetates afforded cyclopropyl derivatives containing seven- and eight-membered rings, respectively. This reaction was used for the synthesis of a new allocolchicinoid having a cyclopropane ring fused to the B seven-membered ring at the C6−C7 positions.