Process for synthesizing aldehydes

C - Chemistry – Metallurgy – 07 – C

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C07C 47/00 (2006.01) B01J 23/62 (2006.01) C07C 45/41 (2006.01) C07D 213/48 (2006.01) C07D 311/10 (2006.01) C07D 317/54 (2006.01)

Patent

CA 2081275

La présente invention concerne un procédé de préparation d'aldéhydes par réduction à l'hydrogène d'acides, d'esters ou d'anhydrides carboxyliques caractérisé en ce que l'on opère en phase vapeur, en présence d'un catalyseur bimétallique de type ruthénium/étain. L'invention concerne en outre l'utilisation de l'aldéhyde salicylique obtenu comme intermédiaire de fabrication de la courmarine. L'invention concerne en outre un catalyseur bimétallique comprenant de l'étain et du ruthénium, exempte, de bore éventuellement sur un support.

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