A Simple and Efficient Metal-Free Synthesis of Tetrasubstituted Pyrroles by Iodine-Catalyzed Four-Component Coupling Reaction of Aldehydes, Amines, Dialkyl Acetylenedicarboxylates, and Nitromethane¹
作者:Biswanath Das、Nisith Bhunia、Maram Lingaiah
DOI:10.1055/s-0030-1260228
日期:2011.11
furnished the corresponding 1,2,3,4-tetrasubstituted pyrroles under reflux. The products are formed in high yields (65-88%) within 8 hours. The method is simple, efficient, cost-effective, and metal-free. 1,2,3,4-tetrasubstituted pyrroles - four-component coupling reaction - iodine - metal-free synthesis Part 230 in the series ‘Studies on Novel Synthetic Methodologies’.
醛,胺,乙炔二羧酸二烷基酯和硝基甲烷在分子碘作为催化剂存在下的四组分偶联反应在回流下提供了相应的1,2,3,4-四取代的吡咯。产品在8小时内以高收率(65-88%)形成。该方法简单,有效,具有成本效益并且不含金属。 1,2,3,4-四取代的吡咯-四组分偶联反应-碘-无金属合成 系列“新型合成方法研究”的第230部分。