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.
我们已经开发了一种通过对金(I)催化的炔基环氧化物进行高度区域和非对映选择性分子间加水和醇的方法,从而获得了缩酮骨架的新途径。该过程涉及多米诺骨牌三元开环,6-外-环异构化,以及随后的向双键序列的分子内或分子间亲核加成。