Open Access Open Access  Restricted Access Subscription Access

SYNTHESIS OF SOME NOVEL HETEROANNULATED CHROMONES BY BASIC REARRANGEMENT OF 6-METHYLCHROMONE-3-CARBONITRILE

M. A. Ibrahim, N. M. El-Gohary, S. S. Ibrahim, S. Said
Cover Image

Abstract


A new series of chromeno[2,3-b]pyridines was efficiently synthesized throughout chemical transformations of 6-methylchromone-3-carbonitrile with some methylene-active compounds bearing –CH2–CN and –CH2–CO– moieties. Some heteroannulated chromeno[2,3-b]pyridines were also synthesized. Structures of the new synthesized products were deduced on the basis of their analytical and spectral data.

How to Cite
Ibrahim, M. A.; El-Gohary, N. M.; Ibrahim, S. S.; Said, S. Chem. Heterocycl. Compd. 2015, 50, 1624. [Khim. Geterotsikl. Soedin. 2014, 1766.]

For this article in the English edition see DOI 10.1007/s10593-014-1632-y


Keywords


chromeno[2,3-b]pyridines; heteroannulated chromones; 6-methylchromone-3-carbonitrile; basic rearrangement; cyclocondensation

Full Text: PDF Supplementary File(s): None


 

 

Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv