Liquid phase oxidation of unsaturated aldehydes to carboxylic ac

Details Liquid phase oxidation of unsaturated aldehydes to carboxylic ac Liquid phase oxidation of unsaturated aldehydes to carboxylic ac

1977-02-07

1978-06-06

Garner, Vivian

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260526N, 260539R, C07C 5132, C07C 5704, C07C 5706, C07C 5708

Patent

active

040936490

ABSTRACT:
A process for the preparation of .alpha.,.beta.-unsaturated aliphatic carboxylic acids by the liquid phase oxidation of the corresponding .alpha.,.beta.-unsaturated aliphatic aldehyde, such as acrolein and methacrolein, and the in situ decomposition or conversion of unsaturated peroxy (peroxide) compounds formed during oxidation, which comprises passing air or oxygen through an inert organic solvent solution of the aldehyde at a suitable temperature and pressure in the presence of a catalytic amount of an organic or inorganic bismuth salt. Heterogeneous solvent systems employing mixtures of the organic solvent and water may be used.

REFERENCES:
patent: 2212900 (1940-08-01), Groll et al.

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