Iodine-catalyzed three component reaction: a novel synthesis of 2-aryl-imidazo[1,2-a]pyridine scaffolds
作者:Kallimeledoddi Boregowda Puttaraju、Kalegowda Shivashankar
DOI:10.1039/c3ra43407a
日期:——
A facile and efficient protocol for the synthesis of novel 2-aryl-imidazo[1,2-a]pyridines has been developed via a one-pot reaction of aromatic aldehydes with 2-amino-5-chloropyridine and tert-butylisocyanide in the presence of I2 in ethanol at 70 °C. The present approach offers the advantages of a clean and simple methodology, high atom-economy, mild conditions, short reaction times, wide substrate scope, low environmental impact and high yield.
开发了一种简便且高效的新型2-芳基咪唑并[1,2-a]吡啶合成方法,通过在一锅中将芳香醛与2-氨基-5-氯吡啶和叔丁基异氰化物在碘存在下,于70°C的乙醇中反应实现。该方法具有清洁且简单的方法学特点,高原子经济性,温和条件,短反应时间,广泛底物范围,低环境影响以及高产率等优势。