SYNTHESIS OF 3-(5-ARYL-1,3,4-OXADIAZOL-2-YL)CHROMONES
Keywords:
3-hetarylchromones, 1,3,4-oxadiazoline, 3-formylchromone, synthesisAbstract
A general method was proposed for the synthesis of 3-(5-aryl-1,3,4-oxadiazol-2-yl)chromones starting from 3-formylchromone. This aldehyde yields acylhydrazones, from which the corresponding unstable nitrile imines are generated. These intermediates undergo intramolecular 1,3-dipolar cycloaddition.
How to Cite
Cao, L.; Wang, W. Chem. Heterocycl. Compd. 2003, 39, 1072. [Khim. Geterotsikl. Soedin. 2003, 1227.]
For this article in the English edition, see DOI 10.1023/B:COHC.0000003526.98678.6e