Concise synthesis of 2,3-disubstituted quinoline derivatives <i>via</i> ruthenium-catalyzed three-component deaminative coupling reaction of anilines, aldehydes and amines
作者:Aldiyar Shakenov、Krishna Prasad Gnyawali、Chae S. Yi
DOI:10.1039/d3ob00348e
日期:——
was found to be a highly effective catalyst for the three-component deaminative coupling reaction of anilines with aldehydes and allylamines to form 2,3-disubstituted quinoline products. The analogous coupling reaction of anilines with aldehydes and cyclic enamines led to the selective formation of the tricyclic quinoline derivatives. The reaction profile study showed that the imine is initially formed
Ru–H 络合物 (PCy 3 ) 2 (CO)RuHCl ( 1) 被发现是苯胺与醛和烯丙胺的三组分脱氨偶联反应生成 2,3-二取代喹啉产物的高效催化剂。苯胺与醛和环烯胺的类似偶联反应导致选择性形成三环喹啉衍生物。反应曲线研究表明,亚胺最初是由苯胺和醛脱水偶联而成,然后与胺底物发生脱氨偶联和环化反应生成喹啉产物。催化偶联法提供了一种高效的 2,3-二取代喹啉衍生物合成方法,无需使用任何反应试剂或形成无用的副产物。