Synthesis of 9-azolyl-3-(4-phenyl-4h-1,2,4-triazol-3-yl)-4h,8h-pyrano-[2,3-f]chromene-4,8-diones

Synthesis of 9-azolyl-3-(4-phenyl-4h-1,2,4-triazol-3-yl)-4h,8h-pyrano-[2,3-f]chromene-4,8-diones

The reaction of 6-ethyl-8-formyl-7-hydroxy-3-(4-phenyl-4H-1,2,4-triazol-3-yl)chromone with 2-azolyl-acetonitriles gave 8-iminopyrano[2,3-f]chromen-4-ones, whose acid hydrolysis led to pyrano-[2,3-f]chromene-4,8-diones containing azaheterocyclic substituents at C-3 and C-9.

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Veröffentlicht in:Chemistry of heterocyclic compounds (New York, N.Y. 1965) N.Y. 1965), 2009-09, Vol.45 (9), p.1089-1094
Hauptverfasser: Shokol, T. V, Lozinskii, O. A, Turov, A. V, Khilya, V. P
Format: Artikel
Sprache:eng
Schlagworte:
2-azolylacetonitriles
8-formyl-7-hydroxychromones
Chemistry
Chemistry and Materials Science
condensation
Organic Chemistry
Pharmacy
pyrano[2,3-f]chromene-4,8-diones
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Zusammenfassung:The reaction of 6-ethyl-8-formyl-7-hydroxy-3-(4-phenyl-4H-1,2,4-triazol-3-yl)chromone with 2-azolyl-acetonitriles gave 8-iminopyrano[2,3-f]chromen-4-ones, whose acid hydrolysis led to pyrano-[2,3-f]chromene-4,8-diones containing azaheterocyclic substituents at C-3 and C-9.
ISSN:0009-3122
1573-8353
DOI:10.1007/s10593-009-0402-8