Syntheses of quinazolinones from 2-iodobenzamides and enaminones via copper-catalyzed domino reactions
作者:Teerawat Songsichan、Jaturong Promsuk、Vatcharin Rukachaisirikul、Juthanat Kaeobamrung
DOI:10.1039/c4ob00400k
日期:——
N-Substituted 2-iodobenzamides and enaminones undergo cascade transformations to achieve quinazolinones via a copper-catalyzed Ullmann-type coupling, a Michael addition and a retro-Mannich reaction. A unique stereochemical feature of this domino process was that Z-enaminones reacted without external ligands, whereas E-enaminones required the assistance of ligands.
N-取代的2-碘苯甲酰胺和烯胺酮通过级联转化实现喹唉酮的合成,这一过程包括铜催化的乌尔曼型偶联反应、迈克尔加成反应和逆曼尼希反应。该多米诺反应的独特立体化学特征在于,Z-烯胺酮无需外部配体即可反应,而E-烯胺酮则需要配体的辅助。