Oligo(1,4-phenylenepyrazole-3,5-diyl)s

6533b85ffe1ef96bd12c19ca

RESEARCH PRODUCT

Oligo(1,4-phenylenepyrazole-3,5-diyl)s

subject

Methylhydrazine chemistry.chemical_compound Chalcone chemistry Nucleophile Yield (chemistry)Organic Chemistry Polymer chemistry Regioselectivity Physical and Theoretical Chemistry Benzene Bifunctional

description

The bifunctional nucleophile methylhydrazine reacts in an alkaline medium in a regioselective mode with chalcones to yield 2-pyrazolines, which can be oxidized by DDQ to the corresponding 1H-pyrazoles. From oligo(chalcone)s this reaction yields cross-conjugated compounds with an alternating sequence of 1,4-disubstituted benzene rings and 3,5-disubstituted 1H-pyrazole rings. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)

year	journal	country	edition	language
2003-09-01	European Journal of Organic Chemistry

https://doi.org/10.1002/ejoc.200300221

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