NOVEL APPROACHES TO SYNTHESIS OF 4-ALKYL-6-AMINO-5-CYANO-3-METHYL(PROPYL, PHENYL)-2H,4H-PYRANO[2,3-<i>c</i>]PYRAZOLES

Authors

  • В. Д. Дяченко Taras Shevchenko National Pedagogical University, Lugansk 91011
  • Э. Б. Русанов Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kiev 02094

Keywords:

4-alkylmethylene-3-substituted 5-pyrazolones, 4-alkyl-6-amino-5-cyano-3-methyl(propyl, phenyl)-2H,4H-pyrano[2,3-c]pyrazoles, malononitrile, cyanothioacetamide, Michael reaction

Abstract

We have obtained 4-alkyl-6-amino-5-cyano-3-methyl(propyl, phenyl)-2H,4H-pyrano[2,3-c]pyrazoles by reaction of 4-alkylmethylene-3-substituted 5-pyrazolones with malononitrile or cyanothioacetamide. We have used X-ray diffraction to study the structure of 6-amino-5-cyano-4-isopropyl(hexyl)-3-phenyl-2H,4H-pyrano[2,3-c]pyrazoles.

How to Cite
Dyachenko, V. D.; Rusanov, E. B. Chem. Heterocycl. Compd. 2004, 40, 231. [Khim. Geterotsikl. Soedin. 2004, 270.]

For this article in the English edition, see DOI 10.1023/B:COHC.0000027898.06493.c5

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Published

2004-02-25

Issue

No. 2 (2004)

Section

Original Papers