An efficient approach to H-pyrazolo[5,1-a]isoquinolines via a silver triflate-catalyzed reaction of N′-(2-alkynylbenzylidene)hydrazide with allenoate
作者:Liang Gao、Shengqing Ye、Qiuping Ding、Zhiyuan Chen、Jie Wu
DOI:10.1016/j.tet.2012.02.013
日期:2012.4
A silver triflate-catalyzed reaction of N'-(2-alkynylbenzylidene)hydrazide with allenoate under mild conditions is described, which provides an efficient approach to diverse H-pyrazolo[5,1-alisoquinolines. This reaction proceeds with a wide substrate scope with good functional groups tolerance. (C) 2012 Elsevier Ltd. All rights reserved.