Gold(I)-Catalyzed 1,4- and/or 1,5-Heteroaryl Migration Reactions through Regiocontrolled Cyclizations
作者:Chengyu Wang、Xin Xie、Jun Liu、Yuanhong Liu、Yuxue Li
DOI:10.1002/chem.201405190
日期:2015.1.7
Gold(I)‐catalyzed regioselective cycloisomerizations of furan‐ynes have been described. The reaction provides a concise access to stereodefined trisubstituted alkenes by endo cyclization with concomitant 1,5‐migration of the furanyl group in the presence of unactivated 3 Å molecular sieves. In the absence of molecular sieves, indene products are generated by exo cyclization, followed by 1,4‐furanyl