Eur. J. Chem. volume 3, issue 1, P44-50 2012 DOI: 10.5155/eurjchem.3.1.44-50.517 View Full Text
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Hitendra Mangubhai Patel

Abstract: KEYWORDSAniline derivatives were diazotized and coupled with 3-aminocrotononitrile to give the corresponding 2-arylhydrazono-3-ketiminobutyronitriles. Cyclization of these arylhydrazono derivatives with hydrazine monohydrate afforded 5-amino-4-arylazo-3-methyl-1H-pyrazoles which were subsequently diazotized and coupled with malononitrile to yield a series of pyrazolylhydrazonomalononitriles. These compounds were then reacted with hydrazine monohydrate to provide, heterocyclic dyes, which were further diazotiz…

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