Rhodium-catalyzed hydrogenation of unsaturated aldehydes to unsa

Details Rhodium-catalyzed hydrogenation of unsaturated aldehydes to unsa Rhodium-catalyzed hydrogenation of unsaturated aldehydes to unsa

1978-02-01

1981-09-29

Evans, Joseph E.

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

Organic compounds

Oxygen containing

252431R, 252431N, C07C 2914, C07C 3303

Patent

active

042924529

ABSTRACT:
Process for selective hydrogenation of aliphatic unsaturated aldehyde to unsaturated alcohol with gaseous hydrogen using supported rhodium-complex catalyst.
This invention relates to a process for preparing unsaturated aliphatic alcohols wherein unsaturated aliphatic aldehydes are selectively hydrogenated using supported rhodium-complex catalyst.
Unsaturated alcohols have use in the production of plastics and perfumes. Crotonyl alcohol, for example, has utility for the production of copolymers with vinyl acetate or styrene, and also as an intermediate for synthesis of other organic compounds. Allyl alcohol is a precursor for butanediol which is used to produce tetrahydrofuran, polyesters such as polybutylene terephthalate, and polybutylene oxide based polyurethanes.
Particular difficulty in selectively hydrogenating alpha, beta unsaturated aldehydes is described in U.S. Pat. No. 3,655,777 (Rylander et al., 1972, assigned to Engelhard Minerals and Chemicals) wherein patentees teach many catalysts, e.g., palladium, platinum, rhodium, ruthenium, and nickel, usually reduce the double bond in preference over reduction of the carbonyl group. Rylander also teaches a high pressure process to obtain unsaturated alcohols using an osmium catalyst.

REFERENCES:
patent: 4072720 (1978-02-01), Haag et al.
Mizoroki et al., "Bulletin of the Chemical Society of Japan", vol. 50(8), 2148-2152 (1977).
Haag et al., "Catalysis", vol. 1, 465-475 (1973).
Jurewicz et al., "Advances in Chemistry", Series No. 132, 240-251 (1974).

Affiliated with

Also associated with

Rating

Rhodium-catalyzed hydrogenation of unsaturated aldehydes to unsa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rhodium-catalyzed hydrogenation of unsaturated aldehydes to unsa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rhodium-catalyzed hydrogenation of unsaturated aldehydes to unsa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1234860