CONDENSATION OF 5-AMINO-4-ARYLPYRAZOLES WITH ITACONIC ACID AND MALEIC ANHYDRIDE

Authors

  • С. И. Филимонов Yaroslavl State Technical University
  • М. К. Корсаков Yaroslavl State Technical University
  • Ж. В. Чиркова Yaroslavl State Technical University
  • И. Г. Абрамов Yaroslavl State Technical University
  • Г. А. Сташина N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences
  • С. И. Фирганг N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences
  • Ю. А. Ковыгин Voronezh State University
  • Х. С. Шихалиев Voronezh State University

DOI:

https://doi.org/10.1007/783

Keywords:

5-amino-4-arylpyrazole, 2, 3-dihydro-1H-imidazolo[1, 2-b]pyrazole, itaconic acid, maleic anhydride, tetrahydropyrazolo[1, 5-a]pyrimidines

Abstract

Substituted 5-amino-4-arylpyrazoles on condensation with itaconic acid form substituted tetrahydropyrazolo[1,5-a]pyrimidines, and on condensation with maleic anhydride form 2,3-dihydro-1H-imidazolo[1,2-b]pyrazoles, which on more extended heating rearrange into tetrahydropyrazolo[1,5-a]pyrimidines.

Authors: S. I. Filimonov, M. K. Korsakov, Zh. V. Chirkova, I. G. Abramov, G. A. Stashina, S. I. Firgang, Yu. A. Kovygin, and Kh. S. Shikhaliev.

English Translation in Chemistry of Heterocyclic Compounds, 2013, 49 (7), pp 993-999

http://link.springer.com/article/10.1007/s10593-013-1337-7

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Published

2013-07-02

Issue

No. 7 (2013)

Section

Original Papers