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The regiospecific synthesis of N-substituted pyrazoles. I. 1- and 2-substituted indeno[1,2-c]pyrazol-4(1H)-ones

✍ Scribed by Thomas L. Lemke; Kailash N. Sawhney

Book ID: 112126911
Publisher: Journal of Heterocyclic Chemistry
Year: 1982
Tongue: English
Weight: 352 KB
Volume: 19
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570190616

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## Abstract 3‐Acyl‐4‐hydroxy‐2‐oxo‐2__H__‐chromen derivatives **1a‐d** were condensed with (7‐hydroxy‐2‐oxo‐2__H__‐chromen‐4‐yl)‐acetic acid hydrazide **2**, (4‐methyl‐2‐oxo‐2__H__‐chromen‐7‐yloxy)‐acetic acid hydrazide **3**, and (7‐hydrazinocarbonylmethoxy‐2‐oxo‐2__H__‐chromen‐4‐yl)‐acetic acid h