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Synthesis of pyrazole and isoxazole in triethanolamine medium.

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Field Value
 
Title Synthesis of pyrazole and isoxazole in triethanolamine medium.
 
Creator Agrawal, Nitin N
Soni, P A
 
Subject Chalcone
Pyrazole
Isoxazole
β-diketone
Triethanolamine
 
Description 532-534
Reactions of 2′-hydroxy chalcone dibromides 2a-l with phenyl hydrazine and hydrazine hydrate afford pyrazoles 1a-l and with hydroxylamine hydrochloride give isoxazoles 5a-f in triethanolamine medium. Similarly reaction of β-diketone 3b-e with phenyl hydrazine and hydrazine hydrate in TEA gives pyrazoles 4a-l in high yield in shorter time. The products are confirmed by their m.p., m.m.p., chemical analysis and IR, ¹H NMR spectral data.
 
Date 2008-03-24T11:20:06Z
2008-03-24T11:20:06Z
2007-03
 
Type Article
 
Identifier 0376-4699
http://hdl.handle.net/123456789/470
 
Language en_US
 
Relation Int.Cl.⁸C07D
 
Publisher CSIR
 
Source IJCB Vol.46B(3) [March 2007]