Deaminative Cyclization of Tertiary Amines for the Synthesis of 2-Arylquinoline Derivatives with a Nonsubstituted Vinylene Fragment
作者:Qinghe Gao、Yimei Guo、Zhenhua Sun、Xiaodan He、Yiqiao Gao、Guangping Fan、Penghui Cao、Lizhen Fang、Suping Bai、Yanlong Jia
DOI:10.1021/acs.orglett.2c03904
日期:2023.1.13
regioselective synthesis of β,γ-nonsubstituted 2-arylquinolines from aldehydes and arylamines has been accomplished. The deaminative cyclization is also extended to long-chain tertiary alkylamines, enabling diverse alkyl groups to be concurrently installed into the pyridine rings. This process demonstrates a new conversion pathway for the simultaneous dual C(sp3)–H bond functionalization of tertiary amines, wherein
以三乙胺为亚乙烯基源,完成了从醛和芳基胺区域选择性合成 β,γ-未取代的 2-芳基喹啉的便捷方案。脱氨基环化也扩展到长链叔烷基胺,使不同的烷基能够同时安装到吡啶环上。该过程展示了叔胺同时双 C(sp 3 )–H 键功能化的新转化途径,其中原位生成的瞬态无环烯胺经历 Povarov 反应。