SYNTHESIS OF 9-AZOLYL-3-(4-PHENYL-4H-1,2,4-TRIAZOL-3-YL)-4H,8H-PYRANO[2,3-<i>f</i>]CHROMENE-4,8-DIONES
DOI:
https://doi.org/10.1007/6586Keywords:
2-azolylacetonitriles, 8-formyl-7-hydroxychromones, pyrano[2, 3-f]chromene-4, 8-diones, condensationAbstract
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.
How to Cite
Shokol, T. V.; Lozinskii, O. A.; Turov, A. V.; Khilya, V. P. Chem. Heterocycl. Compd. 2009, 45, 1089. [Khim. Geterotsikl. Soedin. 2009, 1361.]
For this article in the English edition see DOI 10.1007/s10593-009-0402-8