Highly selective oxidizing process for preparing...

Details Highly selective oxidizing process for preparing... Highly selective oxidizing process for preparing...

C - Chemistry, Metallurgy

07

D

260/296.3, 260/2

C07D 213/79 (2006.01) C07D 213/803 (2006.01)

Patent

CA 1099723

ABSTRACT OF THE DISCLOSURE Highly selective oxidation process for preparing pyridin- carboxylic acids from pyridine compounds nucleus substituted with alkyl groups, through a carbon-carbon bond, and oxidisable to carboxyl, and from hydrosoluble hexavalent chromium compounds, in the presence of an acid. Particularly, the oxidation is described of beta-picoline with sodium bichromate to obtain the sodium salt of nicotinic acid and 99.5% pure free acid, respectively.

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