[3+1+1+1] Annulation to the Pyridine Structure in Quinoline Molecules Based on DMSO as a Nonadjacent Dual-Methine Synthon: Simple Synthesis of 3-Arylquinolines from Arylaldehydes, Arylamines, and DMSO
作者:Tonglin Yang、Hui Li、Zhiwen Nie、Miao-dong Su、Wei-ping Luo、Qiang Liu、Can-Cheng Guo
DOI:10.1021/acs.joc.1c02708
日期:2022.3.4
A [3+1+1+1] annulation of arylamines, arylaldehydes, and dimethyl sulfoxide (DMSO) to the pyridine structure in quinolines using DMSO as a nonadjacent dual-methine (═CH−) synthon is disclosed. In this annulation, arylamines provide two carbon atoms and one nitrogen atom, arylaldehydes furnish one carbon atom, and DMSO provides two nonadjacent methines (═CH−) to the pyridine ring in quinoline molecules
公开了使用 DMSO 作为不相邻的双次甲基 (=CH-) 合成子,芳胺、芳醛和二甲基亚砜 (DMSO) 与吡啶结构的 [3+1+1+1] 环化反应。在这种环化过程中,芳胺提供两个碳原子和一个氮原子,芳醛提供一个碳原子,DMSO 提供两个不相邻的次甲基 (=CH-) 到喹啉分子中的吡啶环。这种环化为从容易获得的底物以有用的产率合成 3-芳基喹啉提供了一种简单的方法。在对照实验和文献的基础上,提出了一种似是而非的机制。