Functionalization of C sp 3H and C sp 2H Bonds: Synthesis of Spiroindenes by Enolate-Directed Ruthenium-Catalyzed Oxidative Annulation of Alkynes with 2-Aryl-1,3-dicarbonyl Compounds
作者:Suresh Reddy Chidipudi、Imtiaz Khan、Hon Wai Lam
DOI:10.1002/anie.201207170
日期:2012.11.26
Ru(de) awakening: The synthesis of carbocycles by the ruthenium‐catalyzed oxidative annulation of alkynes with 2‐aryl cyclic 1,3‐dicarbonyl substrates is described. Proceeding by the functionalization of CH and CH bonds, and the formation of an all‐carbon quaternary center, the reaction provides a diverse range of spiroindenes in good yields with high levels of regioselectivity.
Ru(de)唤醒:描述了通过钌催化的炔烃与2-芳基环状1,3-二羰基底物的合成碳环。通过CH和CH键的功能化,以及全碳四元中心的形成,该反应以高收率和高区域选择性提供了多种螺环茚。