Process for the preparation of hydroxybenzaldehydes

Details Process for the preparation of hydroxybenzaldehydes Process for the preparation of hydroxybenzaldehydes

1976-03-08

1977-05-31

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252472, 252440, 252428, 252441, 252437, 252444, C07C 4516

Patent

active

040269507

ABSTRACT:
A process is provided for the production of hydroxybenzaldehydes, especially salicylaldehyde, from the oxidation of the corresponding hydroxybenzyl alcohol, especially orthohydroxybenzyl alcohol, with oxygen in an aqueous alkaline medium in the presence of a noble metal catalyst, such as platinum or palladium, and in the presence of a co-catalyst containing bismuth.

REFERENCES:
patent: 3673257 (1972-06-01), DiBello

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