Thermal and Microwave-Assisted Rapid Syntheses of Substituted Imidazo[1,2-a]pyridines Under Solvent- and Catalyst-Free Conditions
作者:Subbarayappa Adimurthy、Kaushik Chunavala、Girdhar Joshi、Eringathodi Suresh
DOI:10.1055/s-0030-1258405
日期:2011.2
microwave-assisted rapid syntheses of highly substituted imidazo[1,2-a]pyridine derivatives by reaction of aminopyridines and α-bromo-β-keto esters under solvent-free conditions are described. Reactions carried out under microwave irradiation give the highest yields of products in reaction times of less than two minutes. aminopyridines - α-bromo-β-keto esters - imidazo[1,2-a]pyridines - microwave irradiation
描述了在无溶剂条件下通过氨基吡啶与α-溴-β-酮酯的反应进行热取代和微波辅助快速合成高度取代的咪唑并[1,2- a ]吡啶衍生物。在少于两分钟的反应时间内,在微波辐射下进行的反应可获得最高的产物收率。 氨基吡啶-α-溴-β-酮酸酯-咪唑并[1,2- a ]吡啶-微波辐射-无溶剂-热