Regioselective Synthesis of 1-Aryl-3,4-substituted/annulated-5-(methylthio)pyrazoles and 1-Aryl-3-(methylthio)-4,5-substituted/annulated Pyrazoles

Highly efficient and regioselective synthesis of 1-aryl-3,4-substituted/annulated-5-(methylthio)pyrazoles and 1-aryl-3-(methylthio)-4,5-substituted/annulated pyrazoles has been reported via cyclocondensation of arylhydrazines with either α-oxoketene dithioacetals or β-oxodithioesters.

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Bibliographic Details
Published in:Journal of organic chemistry 2005-11, Vol.70 (24), p.10030-10035
Main Authors: Peruncheralathan, S, Khan, T. A, Ila, H, Junjappa, H
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
Heterocyclic compounds
Heterocyclic compounds with several n hetero atoms in the same ring, in separated rings or in fused rings
Molecular Structure
Organic chemistry
Preparations and properties
Pyrazoles - chemical synthesis
Pyrazoles - chemistry
Stereoisomerism
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Summary:Highly efficient and regioselective synthesis of 1-aryl-3,4-substituted/annulated-5-(methylthio)pyrazoles and 1-aryl-3-(methylthio)-4,5-substituted/annulated pyrazoles has been reported via cyclocondensation of arylhydrazines with either α-oxoketene dithioacetals or β-oxodithioesters.
ISSN:0022-3263
1520-6904
DOI:10.1021/jo051771u