Gold(I)-Catalyzed Cascade Cyclization Reaction: Highly Regio- and Diastereoselective Intermolecular Addition of Water and Alcohols to Epoxy Alkynes
作者:Lun-Zhi Dai、Ming-Juan Qi、Yong-Ling Shi、Xu-Guang Liu、Min Shi
DOI:10.1021/ol0713640
日期:2007.8.1
have developed a novel access to ketal skeletons through a highly regio- and diastereoselective intermolecular addition of water and alcohols to alkynyl epoxides catalyzed by gold(I). This procedure involves a domino three-membered ring-opening, 6-exo-cycloisomerization, and subsequent intra- or intermolecular nucleophilic addition to a double-bond sequence.