Recyclable, Graphite-Catalyzed, Four-Component Synthesis of Functionalized Pyrroles
作者:K. N. Nandeesh、G. M. Raghavendra、C. N. Revanna、T. A. Jenifer Vijay、K. S. Rangappa、K. Mantelingu
DOI:10.1080/00397911.2013.848368
日期:2014.4.18
Abstract A facile, convenient, and multicomponent coupling strategy for the synthesis of highly functionalized pyrroles is developed using graphite as a catalyst, but devoid of moisture-sensitive metal catalysts and corrosive acidic reagents. This method involves four-component coupling reactions of ethyl acetoacetate compound or diethyl acetylene dicarboxylate, amines, aromatic aldehydes, and nitromethane
摘要 以石墨为催化剂,开发了一种简便、多组分的偶联策略,用于合成高度官能化的吡咯,但不使用对湿气敏感的金属催化剂和腐蚀性酸性试剂。该方法涉及乙酰乙酸乙酯化合物或乙炔二羧酸二乙酯、胺、芳香醛和硝基甲烷的四组分偶联反应,无需惰性气氛。这种方法可以通过一锅串联反应轻松获得高产率的高度取代的吡咯。与现有方法相比,该方法非常简单、直接且环保。[本文提供补充材料。访问出版商的 Synthetic Communications® 在线版本,获取以下免费补充资源: