POLYFUNCTIONAL PYRAZOLES. 11. SYNTHESIS OF 5-AROYLPYRANO[3,4-<i>с</i>]PYRAZOL-7(2<i>Н</i>)-ONES

Authors

  • Михаил К. Братенко Bukovinian State Medical University
  • Марианна М. Барус Bukovinian State Medical University
  • Михаил В. Вовк Institute of Organic Chemistry, National Academy of Sciences of Ukraine

DOI:

https://doi.org/10.1007/3777

Keywords:

aroylmethyl esters, 5-aroylpyrano[3, 4-с]pyrazoles, 4-formylpyrazole-3-carboxylic acids, intramolecular cyclocondensation

Abstract

Aroylmethyl esters of 4-formylpyrazole-3-carboxylic acids underwent intramolecular cyclocondensation in the presence of sodium acetate in refluxing acetic anhydride, giving moderate yields of 5-aroylpyrano[3,4-с]pyrazol-7(2Н)-ones.

Authors: Mykhailo K. Bratenko*, Marianna M. Barus, Mykhailo V. Vovk

Author Biography

Михаил К. Братенко, Bukovinian State Medical University

заведующий кафедрой медицинской и фармацевтической химии, доктор химичесаких наук, профессор

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Published

2017-10-03

Issue

Vol. 53 No. 8 (2017)

Section

Original Papers