Process for the preparation of vitamin A

Details Process for the preparation of vitamin A Process for the preparation of vitamin A

1988-11-29

1990-03-06

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568862, 568856, C07C 3518

Patent

active

049067958

ABSTRACT:
Vitamin A containing practically no 2-cis or 6-cis isomer is prepared by hydrogenation of the aldehyde of vitamin A, optionally in the form of a complex with hydroquinone, in the presence of a ruthenium hydride catalyst.

REFERENCES:
patent: 2834813 (1958-05-01), Oroshnil
patent: 2839585 (1958-06-01), Hawks
patent: 3210427 (1965-10-01), Redel et al.
patent: 3499044 (1970-03-01), Stugis
patent: 4268454 (1981-05-01), Pez et al.
patent: 4321414 (1982-03-01), Costa
patent: 4623750 (1986-11-01), Schulte-Elte et al.

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