Z. Karimi-Jaberi, Mohammad Mehdi Shams, Baharak Pooladian
Oct 22, 2013
Citations
0
Influential Citations
14
Citations
Journal
Acta chimica Slovenica
Abstract
Two efficient and convenient procedures for the synthesis of 6-amino-3-methyl-1,4-diphenyl-1,4-dihydropyrano[2,3c]pyrazole-5-carbonitrile derivatives based on four-component reaction involving ethyl acetoacetate, phenylhydrazine, malononitrile, and various aromatic aldehydes using trichloroacetic acid or ceric sulfate as heterogeneous catalysts in excellent yields and short reaction times have been described.