2004•Journal of Chemical ResearchOpen access
Synthesis of Novel Derivatives of 4-Amino-3,5-Dicyanopyrazole
M. Sameiro T. Gonçalves, Ana M. F. Oliveira‐Campos, Lígia M. Rodrigues, M. Fernanda R. P. Proença, John R. Griffiths, Hernâni L. S. Maia, Martin Kaja, Radim Hrdina
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Abstract
Diazotisation of substituted arylamines followed by reaction with malononitrile gave substituted arylazomalononitriles. Cyclisation of these intermediates with chloroacetonitrile and triethylamine, as base, gave the corresponding new aminodicyanopyrazoles, in 22–80% yields.
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