Process for the preparation of 1,6-hexenedioic acids

C - Chemistry – Metallurgy – 07 – C

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260/519.3

C07C 51/15 (2006.01) C07C 51/12 (2006.01) C07C 57/13 (2006.01)

Patent

CA 2015561

L'invention a trait à un procédé de préparation d'acides hexènedioïques-1,6 par réaction de l'oxyde de carbone et de l'eau sur au moins un butène disubstitué par des groupes acyloxy en présence d'un catalyseur à base de palladium et d'au moins un chlorure d'onium quaternaire d'un élément du groupe VB choisi parmi l'azote et le phosphore, ledit élément étant tétracoordonné à des atomes de carbone, l'azote pouvant être coordonné à deux atomes de phosphore pentavalents.

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