Synthesis of 1,5-disubstituted 3-(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)- 2-pyrazolines

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Abstract

A series of 1,5-disubstituted 3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-2- pyrazolines were synthesized by the reaction of α,β-unsaturated ketones derived from dehydroacetic acid and hydrazine in hot acetic acid or propionic acid. The structures of all new compounds were elucidated by microanalyses, 1H and 13C NMR, IR, and mass spectroscopic measurements.

Original languageEnglish
Pages (from-to)339-345
Number of pages7
JournalMonatshefte fur Chemie
Volume137
Issue number3
DOIs
Publication statusPublished - Mar 1 2006

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Keywords

  • 2-Pyrazolines
  • Hydrazine
  • α,β-Unsaturated ketones

ASJC Scopus subject areas

  • Chemistry(all)

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