Highly selective 1,3-dipolar cycloadditions of captodative olefins 1-acetylvinyl carboxylates to diverse dipoles

被引：23
|
作者：
Nagarajan, A [1 ]
Zepeda, G [1 ]
Tamariz, J [1 ]
机构：
[1] IPN,ESCUELA NACL CIENCIAS BIOL,DEPT ORGAN CHEM,MEXICO CITY 11340,DF,MEXICO
来源：
TETRAHEDRON LETTERS | 1996年 / 37卷 / 38期
关键词：
D O I：
10.1016/0040-4039(96)01546-8
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Regioselective 1,3-dipolar cycloadditions of captodative 1-acetylvinyl p-nitrobenzoyloxy (1a) with propionitrile oxide, diphenylnitrile imine and diazoalkanes provided the corresponding 5-acetyl- isoxazoles and pyrazoles. Evidence to support the formation of the initial cycloadducts was obtained. The addition of nitrones also proved to be highly regio- and stereoselective. Copyright (C) 1996 Elsevier Science Ltd
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收藏
页码：6835 / 6838
页数：4
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