Synthesis of 3,4-Disubstituted Quinolin-2-(1<i>H</i>)-ones<i>via</i>Palladium-Catalyzed Decarboxylative Arylation Reactions
作者:Amandine Carrër、Jean-Daniel Brion、Samir Messaoudi、Mouad Alami
DOI:10.1002/adsc.201300299
日期:2013.7.8
The Pd‐catalyzed decarboxylative cross‐coupling reaction of 4‐substituted quinolin‐2(1H)‐one‐3‐carboxylic acids with (hetero)aryl halides is described. With palladium(II) bromide and triphenylarsine ligand as the catalyst system, a variety of 4‐substituted 3‐(hetero)aryl quinolin‐2(1 H)‐ones and related heterocycles, such as 4‐substituted 3‐arylcoumarins can be prepared in good to excellent yields
描述了4-取代的喹啉2(1 H)-1-3-羧酸与(杂)芳基卤化物的Pd催化的脱羧交叉偶联反应。以溴化钯(II)和三苯ar基配体为催化剂体系,可以制备各种4-取代的3-(杂)芳基喹啉-2(1 H)-酮和相关杂环,例如4-取代的3-芳基香豆素产量高到极好。