Selective Phosphoranation of Unactivated Alkynes with Phosphonium Cation To Achieve Isoquinoline Synthesis
作者:Hong Cui、Jinku Bai、Tianyu Ai、Ye Zhan、Guanzhong Li、Honghua Rao
DOI:10.1021/acs.orglett.1c01237
日期:2021.5.21
a selective phosphoranation of alkynes with phosphonium cation, which directs a concise approach to isoquinolines from unactivated alkyne and nitrile feedstocks in a single step. Mechanistic studies suggest that the annulation reaction is initiated by the unprecedented phosphoranation of alkynes, thus representing a unique reaction pattern of phosphonium salts and distinguishing it from existing protocols
我们在本文中开发了用phospho阳离子对炔烃进行选择性磷酸化的方法,该方法可在一个步骤中从未活化的炔烃和腈类原料中直接引入异喹啉的简便方法。机理研究表明,环化反应是由炔烃的空前磷酸化作用引发的,因此代表了salts盐的独特反应模式,并将其与主要依赖于利用高度官能化的亚胺/肟和/或高度极化的炔烃的现有方案相区别。