1,3-Dipolar cycloaddition of 3-arylidenechromanone - 1-thiochromanone and -flavanone: Regio- and stereoselective formation of spiroheterocycles

Lubor Fišera, Libuše Jarošková, Albert Lévai, Eva Jedlovská, Gábor Tóth, Monika Poláková

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Abstract

The cycloaddition of nitrile oxides, nitrones, and nitrite imines to 3-arylidenechromanone (1), -flavanone (5), -1-thiochromanone (2) and -1-tetralone (3) proceeds regio- and stereoselectively under the formation of spiro-substituted isoxazole and pyrazole derivatives.

Original languageEnglish
Pages (from-to)1651-1655
Number of pages5
JournalHeterocycles
Volume45
Issue number9
DOIs
Publication statusPublished - Jan 1 1997

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ASJC Scopus subject areas

  • Analytical Chemistry
  • Pharmacology
  • Organic Chemistry

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