A new approach for the synthesis of pyrazoles via 1,3-dipolar cycloaddition of nitrile imines to acetyl acetone

被引：0
|
作者：
Umesha, KB
Rai, KML [1 ]
Kumar, KA
机构：
[1] Univ Mysore, Dept Studies Chem, Mysore 570006, Karnataka, India
[2] Univ Mysore, Yuvarajas Coll, Dept Chem, Mysore 570005, Karnataka, India
来源：
INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY | 2002年 / 41卷 / 07期
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中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The acetyl acetone 3 reacts smoothly with the nitrile imines 2 generated in situ by the catalytic dehydrogenation of diphenyl hydrazones 1 using chloramine-T to afford regioselective cycloadducts 5,6 in 59-78% and 6-8% yields respectively.
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页码：1450 / 1453
页数：4
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