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ChemInform Abstract: Simple and Efficient One-Pot Synthesis of N-Phenyl-3,5-difunctionalized Pyrazoles.

✍ Scribed by Nasrin Zohreh; Abdolali Alizadeh

Publisher
John Wiley and Sons
Year
2011
Weight
27 KB
Volume
42
Category
Article
ISSN
0931-7597

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✦ Synopsis

Abstract

The reaction proceeds via a (Z)‐phenylhydrazonosuccinate intermediate which undergoes a ring closure with benzoyl or fumaryl chlorides to provide the title pyrazoles.

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## Abstract magnified image A β€œone‐pot” method for the synthesis of __N__‐(1,3‐diphenyl‐1__H__‐pyrazol‐5‐yl)amides was developed by cyclization of benzoylacetonitrile (**1**) and phenylhydrazine in neat condition followed by acylation. The corresponding __N__‐(1,3‐diphenyl‐1__H__‐pyrazol‐5‐yl)amide