New route synthesis of indolizines via 1,3-dipolar cycloaddition of pyridiniums and alkynes
作者:Yongjia Shang、Min Zhang、Shuyan Yu、Kai Ju、Cuie Wang、Xinwei He
DOI:10.1016/j.tetlet.2009.09.143
日期:2009.12
convenient synthesis of 2,3-di and 1,2,3-trisubstituted indolizines has been achieved via a 1,3-dipolar cycloaddition of pyridiniums and alkynes. Various alkynes and diynes were used instead of dimethyl acetylenedicarboxylate (DMAD) and its analogues in the traditional method. The corresponding 1,2,3-trisubstituted indolizines are useful building blocks for the construction of complex indolizine derivatives
通过吡啶鎓和炔烃的1,3-偶极环加成已经实现了2,3-二和1,2,3-三取代的吲哚嗪的方便的合成。在传统方法中,使用各种炔烃和二炔代替乙炔二羧酸二甲酯(DMAD)及其类似物。相应的1,2,3-三取代的吲哚嗪是构建复杂的吲哚嗪衍生物的有用组成部分。