Fused heterocycles. Part 3. Synthesis and stereochemistry of benzopyrano- and benzothiapyrano-[4,3-c]pyrazoles

Gábor Tóth, A. Szöllösy, T. Lóránd, Tibor Kónya, Dezsö Szabó, András Földesi, A. Lévai

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Several tricyclic benzopyrano[4,3-c]pyrazole derivatives have been studied by 1H and 13C n.m.r. spectroscopy. They were prepared by treating 3-benzylidene-chromanones and -1-thiochromanones with semicarbazide or thiosemicarbazide: reactions which give only the cis 3-H,3a-H stereoisomers.

Original languageEnglish
Pages (from-to)319-323
Number of pages5
JournalJournal of the Chemical Society, Perkin Transactions 2
Issue number4
Publication statusPublished - 1989

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Pyrazoles
Stereochemistry
Stereoisomerism
Spectroscopy
Derivatives
thiosemicarbazide
pyrazole
carbamylhydrazine

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Fused heterocycles. Part 3. Synthesis and stereochemistry of benzopyrano- and benzothiapyrano-[4,3-c]pyrazoles. / Tóth, Gábor; Szöllösy, A.; Lóránd, T.; Kónya, Tibor; Szabó, Dezsö; Földesi, András; Lévai, A.

In: Journal of the Chemical Society, Perkin Transactions 2, No. 4, 1989, p. 319-323.

Research output: Contribution to journalArticle

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