Controlled Switching of Multicomponent Heterocyclizations of 5-Amino-<i>N</i>-arylpyrazole-4-carboxamides, 1,3-Cyclohexanediones, and Aldehydes
作者:Valentin A. Chebanov、Vyacheslav E. Saraev、Svetlana V. Shishkina、Oleg V. Shishkin、Vladimir I. Musatov、Sergey M. Desenko
DOI:10.1002/ejoc.201200669
日期:2012.10
Multicomponent heterocyclization of 5-amino-N-arylpyrazole-4-carboxamides, 1,3-cyclohexanediones, and aromatic aldehydes was studied, and reaction conditions allowing selective switching between two directions were found. When the reaction was carried out under thermal heating or ultrasonication at room temperature, formation of linear pyrazoloquinoline-3-carboxamides was observed. Isomeric angular
研究了 5-氨基-N-芳基吡唑-4-甲酰胺、1,3-环己二酮和芳香醛的多组分杂环化,并发现了允许在两个方向之间进行选择性切换的反应条件。当反应在室温加热或超声处理下进行时,观察到线性吡唑并喹啉-3-甲酰胺的形成。等分角