Process for the reduction of unsaturated carboxylic acids

Details Process for the reduction of unsaturated carboxylic acids Process for the reduction of unsaturated carboxylic acids

1981-08-05

1984-05-01

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260410, 2604109R, 2604109N, 560205, 560225, 568885, C11C 312

Patent

active

044460732

ABSTRACT:
Unsaturated carboxylic acids may be reduced to an ester or to a corresponding alcohol by treatment with hydrogen in the presence of a reducing catalyst. The reducing catalyst which is used in the present invention comprises cadmium and ruthenium in a low valence oxidation state composited on a solid support. If so desired, the catalyst may also contain a platinum group metal of Group VIII of the Periodic Tale. By utilizing this catalyst which may be exemplified by cadmium, ruthenium and platinum composited on gamma alumina in a process in which hydrogen is continuously bled from the reaction vessel, it is possible to obtain products in which the carboxyl group of the molecule has been reduced without materially reducing the double bonds of the compound.

REFERENCES:
patent: 1997172 (1935-04-01), Goldschmidt et al.
patent: 2127367 (1938-08-01), Normann et al.
patent: 3377388 (1968-04-01), Pantulu et al.
patent: 4338221 (1982-07-01), Qualeatti et al.
patent: 4340546 (1982-07-01), Qualeatti et al.

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