The Diels-Alder reaction of pyridazinones as dienophiles

Péter Mátyus, Kaoru Fuji, Kiyoshi Tanaka

Research output: Contribution to journalArticle

21 Citations (Scopus)


The Diels-Alder reaction of 5-iodo- (1a) and 5-ethylsulfonyl-2-methyl-3(2H)-pyridazinone (1b) with 2,3-dimethyl-1,3-butadiene afforded phthalazinone (3) and dihydrophthalazinone (2) as isolable products, respectively. The cycloadditions are well interpreted by the theoretical considerations based on the calculated AM1 data.

Original languageEnglish
Pages (from-to)1975-1978
Number of pages4
Issue number9
Publication statusPublished - Sep 1 1993

ASJC Scopus subject areas

  • Analytical Chemistry
  • Pharmacology
  • Organic Chemistry

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