A Facile and Efficient Synthesis of bis(Imidazo[1,2-a]pyridin-3-yl)methane
and Vinyl Derivatives
作者:Daliparthi Eswara Prasada Rao、Medepalli David Raju、Jasti Surendra、Ala Vasu Babu、Poguri Eswaraiah、Nallamaddi Ravi Kumar Reddy、Chinnapillai Rajendiran、Mandava Venkata Basaveswara Rao
DOI:10.2174/1570178618666211022144225
日期:2022.1
derivatives by the reaction between two moles of imidazo[1,2-a]pyridine, one mole ofchloroacetaldehyde in acetic acid, and two drops of trifluoroacetic acid was not successful, insteadunderwent dehydrohalogenation to yield vinyl derivatives (4a-d).
使用乙酸和两滴三氟乙酸在 40-45oC 下开发了一种新型双咪唑并[1,2-a]吡啶-3-基)甲烷(2a-k)衍生物的有效合成路线,得到 60 -72% 的产量。由两摩尔咪唑并[1,2-a]吡啶、一摩尔氯乙醛的乙酸溶液和两滴氯化物反应合成双(咪唑并[1,2-a]吡啶-3-基)甲基氯衍生物的尝试三氟乙酸没有成功,而是进行了脱卤化氢以产生乙烯基衍生物(4a-d)。