On Dimeric 6-Chloro-2-Methylchromone

M. M. Sidky, M. R. Mahran
1968 Zenodo  
6-Chloro-2-methylchromone, in presence of sodium ethoxide in dry ether, gave a red-coloured solid dimer which was found to exist as a keto-enol mixture (Ilia \(\rightleftharpoons\) IIIb, R=CI). In ethanol, it changes quantitatively into the keto form IIIb (R=CI). U. V., I. R and N. M. R. spectra of the dimers are recorded.
doi:10.5281/zenodo.6472385 fatcat:zfwkfvjgefe6der5auvzdgl2pa