Silica gel supported TaBr5:: new catalyst for the facile and rapid cyclization of 2′-aminochalcones to the corresponding 2-aryl-2,3-dihydroquinolin-4(1H)-ones under solvent-free conditions

被引：85

作者：

Ahmed, N ^{[1
]}

van Lier, JE ^{[1
]}

机构：

[1] Univ Sherbrooke, Fac Med, Dept Med Nucl & Radiobiol, Sherbrooke, PQ J1H 5N4, Canada

来源：

TETRAHEDRON LETTERS | 2006年 / 47卷 / 16期

基金：

加拿大健康研究院;

关键词：

silica gel supported TaBr5; 2 '-aminochalcones; Michael addition reaction; 2-aryl-2,3-dihydroquinolin-4(1H)-ones;

D O I：

10.1016/j.tetlet.2006.02.086

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Silica gel supported TaBr5 (5-10 mol %) is anew solid-support catalyst that can be used under solvent-free conditions for the facile and efficient isomerization of 2'-aminochalcones to the corresponding 2-aryl-2,3-dihydroquinolin-4(1H)-ones. The catalyst is easily prepared, stable and employed under environmentally friendly conditions. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2725 / 2729

页数：5

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