A process for producing diacids by carboxylation of phenolic...

Details A process for producing diacids by carboxylation of phenolic... A process for producing diacids by carboxylation of phenolic...

C - Chemistry, Metallurgy

07

C

C07C 51/15 (2006.01) C07C 63/26 (2006.01) C07C 63/28 (2006.01) C07C 63/38 (2006.01)

Patent

CA 2383359

Disclosed is an oxidation free process for converting a hydroxy substituted aromatic to an aromatic diacid which comprises reacting said hydroxy substituted aromatic with excess basic salt in the presence of carbon dioxide at disproportionation/isomerization reaction conditions.

L'invention concerne un procédé, exempt d'oxydation, destiné à transformer un composé aromatique à substituant hydroxy en un diacide aromatique, consistant à faire réagir ledit composé aromatique à substituant hydroxy avec un sel basique en excès, en présence de dioxyde de carbone dans les conditions d'une réaction de dismutation/isomérisation.

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