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The synthesis of 1H-pyrazol-4-ols from 2-(2-alkylidenehydrazino)acetic acids

✍ Scribed by Garry M. Pilling; Rebecca H. Bell; Robert E. Johnson

Publisher
Elsevier Science
Year
1988
Tongue
French
Weight
116 KB
Volume
29
Category
Article
ISSN
0040-4039

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✦ Synopsis

A new general method for synthesizing lH-pyrazol-4-01s by cyclizing 2-(2-alkylidenehydrazino)acetic acids with acetic anhydride in pyridine is reported.

📜 SIMILAR VOLUMES

ChemInform Abstract: One-Pot Parallel So
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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

Synthesis and Characterization of Some 2
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2-{5-[N-(4-tert-Butyl­benz­yl)carbamo­yl
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In the title compound, C~23~H~25~N~3~O~3~, all bond lengths and angles show normal values. The dihedral angles between the rings of the pyrazole and the unsubstituted and __tert__-butyl-substituted benzene rings are 8.6 (2) and 78.5 (3)°, respectively, while that between the two benzene rings is 76.