Method for converting nitrile compounds into corresponding...

C - Chemistry – Metallurgy – 07 – C

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C07C 51/08 (2006.01) C07C 53/128 (2006.01) C07C 55/12 (2006.01) C07C 67/08 (2006.01) C07C 69/24 (2006.01) C07C 69/42 (2006.01)

Patent

CA 2670212

The present invention relates to a method for converting hydrocarbon compounds having at least one nitrile function into compounds having at least one carboxylic function, and to a method for obtaining ester compounds from the carboxylic compounds thus obtained. The invention provides a method for converting compounds having at least one nitrile function into compounds having at least one carboxylic function, which comprises hydrating the nitrile functions with amide function by reaction with water in the presence of a strong inorganic acid, and hydrolysing the amide functions into carboxylic functions y reaction with water and a strong inorganic acid. The carboxylic compounds thus obtained can then be esterified into diesters. The latter can advantageously be used as a solvent.

La présente invention concerne un procédé de transformation de composés hydrocarbonés comprenant au moins une fonction nitrile en composés comprenant au moins une fonction carboxylique et également un procédé d'obtention de composés esters à partir de ces composés carboxyliques ainsi obtenus. L'invention propose un procédé de transformation de composés comprenant au moins une fonction nitrile en des composés comprenant au moins une fonction carboxylique consistant à hydrater les fonctions nitriles en fonction amide par réaction avec l'eau en présence d'un acide fort minéral, puis à hydrolyser les fonctions amides en fonctions carboxyliques par réaction avec l'eau et un acide fort minéral. Les composés carboxyliques ainsi obtenus peuvent être ensuite estérifiés en diesters. Ces derniers peuvent être avantageusement utilisés comme solvant.

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