Recyclable supported catalysts in microwave-assisted reactions:: first Diels-Alder cycloaddition of a triazole ring

被引：14
|
作者：
Diaz-Ortiz, Angel [1 ]
de Cozar, Abel [1 ]
Prieto, Pilar [1 ]
de la Hoz, Antonio [1 ]
Moreno, Andres [1 ]
机构：
[1] Univ Castilla La Mancha, Fac Quim, Dpto Q Inorgan Q Organ & Bioquim, E-13071 Ciudad Real, Spain
来源：
TETRAHEDRON LETTERS | 2006年 / 47卷 / 49期
关键词：
D O I：
10.1016/j.tetlet.2006.10.006
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
We describe here the first example in which a 1,2,3-triazole ring acts as a diene towards DMAD in microwave-assisted solvent-free Diels-Alder cycloadditions. The extrusion of a molecule of a nitrile affords pyrazole derivatives as the products. The yields can be markedly increased by using a recyclable supported Lewis acid catalyst, which can be reused at least five times without a decrease in the yield. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：8761 / 8764
页数：4
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