Copper-Free Synthesis of Skipped Diynes via Cross-Coupling Reactions of Alkynylalanes with Propargylic Electrophiles
作者:Jilali Kessabi、Renaud Beaudegnies、Pierre M. J. Jung、Benjamin Martin、Florian Montel、Sebastian Wendeborn
DOI:10.1021/ol0623769
日期:2006.11.1
Alkynylalanes provide a new, copper-free route to skippeddiynes when combined with propargylic electrophiles bearing an aluminum-complexing leaving group. The reaction is mild, efficient, and, in contrast to copper-mediated methods, highly regioselective. [reaction: see text]