Microwave-assisted facile synthesis of [a]-annelated pyrazolopyrroloindoles via intramolecular azomethine imine 1,3-dipolar cycloaddition
作者:Anand H. Shinde、Shinde Vidyacharan、Duddu S. Sharada
DOI:10.1016/j.tetlet.2014.03.134
日期:2014.5
The synthesis of [a]-annelated pyrazolopyrroloindoles viaintramolecular 1,3-dipolar cycloaddition of in situ generated azomethine imine from N-allylated indole-2-carboxaldehyde, in regio- and stereoselective manner by using microwave irradiation is described. A one-pot strategy for the expedient synthesis of pyrazolopyrroloindoles has been developed.
描述了通过微波辐射以区域和立体选择性的方式通过N-烯丙基化的吲哚-2-羧醛通过原位产生的偶氮甲亚胺的分子内1,3-偶极环加成反应合成[ a ]退火的吡唑并吡咯并吲哚。已经开发了一种方便合成吡唑并吡咯并吲哚的一锅策略。