Heterocyclization of vic-substituted hydroxamic acid salts of acetylenyl-pyrazoles: A new procedure for the preparation of pyrazolo[3,4-c]pyridin-7-ones

Sergei F. Vasilevsky, Elena V. Mshvidobadze, José Elguero

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Procedures for the preparation of 5-substituted pyrazolo[3,4-c]pyridin-7-ones and 5-substituted 6-hydroxypyrazolo[3,4-c]pyridin-7-ones have been developed based on heterocyclization of vic-acetylenylpyrazolylhydroxamic acids under the influence of copper(I) salts in dimethylformamide or with organic bases in butanol or methanol.

Original languageEnglish
Pages (from-to)2255-2260
Number of pages6
JournalHeterocycles
Volume57
Issue number12
Publication statusPublished - 1 Dec 2002
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Pharmacology
  • Organic Chemistry

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