Process for the preparation of hydroxybenzaldehydes

C - Chemistry – Metallurgy – 07 – C

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260/566.7

C07C 47/56 (2006.01) C07C 45/38 (2006.01)

Patent

CA 1074814

PRECIS DE LA DIVULGATION: Procédé de prèparation d'aldéhyde salicylique par oxydation en phase liquide de l'alcool orthohydroxy benzylique à l'aide d'oxygène moléculaire ou d'un gaz en contenant, en opérant dans un milieu aqueux renfermant un agent alcalin an présence d'un catalyseur à base de platine ou de palladium, caractérisé en ce que l'oxydation est conduite en présence d'un co-catalyseur à base d'un dérivé du bismuth.

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