Copper-catalyzed formation of indolizine derivatives via one-pot reactions of chalcones, benzyl bromides and pyridines
作者:Chao-dong Li、Xue Tang、Xiao-long He、Shuai Xue、Jiang-hong Xu、Yu-jin Li
DOI:10.1016/j.tet.2020.131347
日期:2020.8
The one-pot cascade reaction for the preparation of indolizine from a wide range of chalcone, pyridine and benzylbromide via [3 + 2] cycloaddition/oxidative aromatization promoted by Cu(OAc)2 has been developed. This convenient method don’t need to isolate the intermediates and the desired products indolizines were obtained in moderate to high yield catalyzed by Cu(OAc)2 in the presence of oxygen