Palladium-Catalyzed Sequential Reactions via Allene Intermediates for the Rapid Synthesis of Fused Polycyclic Pyrrole Derivatives
作者:Xian Huang、Shugao Zhu、Ruwei Shen
DOI:10.1002/adsc.200900503
日期:2009.12
In this paper, we report a novel sequential reaction sequence consisting of a series of processes including Sonogashira coupling, propargyl-allenyl isomerization, [3+2] cycloaddition, denitrogenation, and highly selective biradical coupling reaction, providing an efficient synthesis of fused polycyclic pyrrole derivatives. The reaction features one CC bond and two CN bonds formed to construct the pyrrole
在本文中,我们报告了一种新颖的顺序反应序列,该序列由一系列过程组成,包括Sonogashira偶联,炔丙基-烯丙基异构化,[3 + 2]环加成,脱氮和高度选择性的双自由基偶联反应,可提供稠合多环吡咯的有效合成衍生品。该反应的特征是形成一个CC键和两个CN键以构建吡咯单元,以及在一个冲程中有效组装的两个环。