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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 23, 1993 - Issue 13
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Original Articles

A Facile Route for the Synthesis of 1-[5-Hydroxy-3-methyl-1-(2-thiazolyl)-4-pyrazolyl]-1,3-butanediones from Dehydroacetic Acid

S. P. Singh Department of Chemistry, Kurukshetra University, Kurukshetra, 132 119, INDIA
,
L. S. Tarar Department of Chemistry, Kurukshetra University, Kurukshetra, 132 119, INDIA
&
Devinder Kumar Department of Chemistry, Kurukshetra University, Kurukshetra, 132 119, INDIA
Pages 1855-1861 | Received 27 Jan 1993, Published online: 23 Sep 2006
 
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Abstract

Thiosemicarbazone (1) of dehydroacetic acid (DHAA) reacts smoothly with α-haloketones to yield corresponding thiazolylhydrazones (2) of DHAA, which on refluxing in EtOH-AcOH rearrange to the title compounds (3).

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