A PROCESS FOR PRODUCING DIACIDS BY CARBOXYLATION OF PHENOLIC COMPOUNDS

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 con...

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Hauptverfasser: BROWNSCOMBE, THOMAS, L, VAPORCIYAN, GARO, PFREHM, SUSAN, S, MYSORE, NARAYANA
Format: Patent
Sprache:eng ; fre
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Zusammenfassung: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.