A new series of indole-containing pyridine derivatives, 4-aryl-6-(1H-indol-3-yl)-2,2′-bipyridine-5-carbonitriles, were synthesized via one-pot multicomponentreactions of 3-(cyanoacetyl)indoles, aldehydes, heterocyclic ketones, and ammonium acetate. Particularly valuable features of this method include high yields of products, broad substrate scope, and straightforward procedures. pyridine derivatives
A simple one-pot synthesis of functionalised 6-(indol-3-yl)-2,2′-bipyridine derivatives via multi-component reaction under neat condition
作者:Prakasam Thirumurugan、Paramasivan T. Perumal
DOI:10.1016/j.tetlet.2009.04.121
日期:2009.7
A series of 4-aryl-6-(1H-indol-3-yl)-2,2-bipyridine-5-carbonitrile derivatives were synthesized via a one-pot multi-component reaction of aromatic aldehydes, 3-(cyanoacetyl)indole and 2-acetyl pyridine in ammonium acetate by conventional heating and microwave irradiation under solvent-free condition. Also a series of 6,6'-di(1H-indol-3-yl)-4,4'-diaryl-2,2'-bipyridine-5,5'-dicarbonitrile derivatives were synthesized using cinnamils, 3-(cyanoacetyl)indole and ammonium acetate. The methodology affords high yields of product at short reaction time. (C) 2009 Elsevier Ltd. All rights reserved.