The ring closure and rearrangement of 1-(2-amino)-benzoyl-1-methylhydrazones of β-dicarbonyl compounds: on the formation and crystal structure of 3a,9a-dihydro- -1,3,3a,9a-tetramethyl-4H-pyrazolo[3,4-b]quinolin-4-one

Melinda Gál, Ödön Fehér, Endre Tihanyi, Gyula Horváth, Gyula Jerkovich, G. Argay, A. Kálmán

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The conversion of 1-(2-amino)-benzoyl-1-methylhydrazones of β-dicarbonyl compounds into heterocyclic derivatives yielded in addition to the already known type of product 2 further three novel pyrazole derivatives 3, 4 and 5. The structures of these products have been established by chemical and spectroscopic (MS) methods. The crystal structure of 5 has been determined by X-ray diffraction.

Original languageEnglish
Pages (from-to)1567-1570
Number of pages4
JournalTetrahedron Letters
Volume21
Issue number16
DOIs
Publication statusPublished - 1980

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Heterocyclic Compounds
X-Ray Diffraction
Crystal structure
Derivatives
X ray diffraction
pyrazole

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry
  • Drug Discovery

Cite this

The ring closure and rearrangement of 1-(2-amino)-benzoyl-1-methylhydrazones of β-dicarbonyl compounds : on the formation and crystal structure of 3a,9a-dihydro- -1,3,3a,9a-tetramethyl-4H-pyrazolo[3,4-b]quinolin-4-one. / Gál, Melinda; Fehér, Ödön; Tihanyi, Endre; Horváth, Gyula; Jerkovich, Gyula; Argay, G.; Kálmán, A.

In: Tetrahedron Letters, Vol. 21, No. 16, 1980, p. 1567-1570.

Research output: Contribution to journalArticle

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AU - Kálmán, A.

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