Preparation of hydrogenation catalyst and hydrogenation process

Details Preparation of hydrogenation catalyst and hydrogenation process Preparation of hydrogenation catalyst and hydrogenation process

1991-07-01

1992-12-15

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...

585270, 585271, 585274, 585277, C07C 500, C07C 505

Patent

active

051719070

ABSTRACT:
A cobalt carbonyl phosphine complex useful for hydrogenation of cyclic polyenes to corresponding cyclic monoenes is prepared by reaction of dicobalt carbonyl and a phosphine compound in at least one non-oxygenated aliphatic solvent. Selective hydrogenation of the cyclic polyenes comprises an induction period during which the polyenes are contacted with the cobalt carbonyl complex catlayst under hydrogen pressure followed by decreasing the reaction temperature and pressure for a period of time sufficient to complete the hydrogenation.

REFERENCES:
patent: 3308177 (1967-03-01), Atkins
patent: 3567790 (1971-03-01), Morita et al.
patent: 3715407 (1973-02-01), Misono et al.
Bull. Chem. Soc. Japan 40:2718-2719 (1967) Akira Misono and Ikuei Ogata.

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