Process for producing 1,4-dienes

Details Process for producing 1,4-dienes Process for producing 1,4-dienes

1993-05-06

1995-07-04

Pal, Asok

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

Diolefin product

C07C 276

Patent

active

054302137

ABSTRACT:
Pure 1,4-dienes are produced at high rates of reaction by reacting a conjugated diene and an alpha monoolefin at a temperature below 70.degree. C. in the presence of a catalyst consisting essentially of a 1,3-bis(diphenylphosphino)propane ligand of Co(II)(acetylacetonate).sub.2 or Co(III)(acetylacetonate).sub.3 or CoCl.sub.2 in combination with a dialkylaluminum halide such as diethylaluminum chloride.

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patent: 3407244 (1968-10-01), Sarafidis
patent: 3445540 (1969-05-01), Sarafidis
patent: 3496247 (1970-02-01), Yuguchi et al.
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patent: 3647901 (1972-03-01), Sarafidis
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patent: 4201731 (1980-05-01), Lyons et al.
patent: 5113033 (1992-05-01), Myers et al.
A. Miyake, et al., "A New Process for 1,4-Diene Synthesis" Proceedings, Seventh World Petroleum Congress, vol. 5, pp. 317-323 (1967).
M. Iwamoto, et al., "Reaction of Butadiene With Ethylene. IV. Synthesis of 1,4-Hexadiene By A Cobaltous Chloride-Ditertiary Phosphine Complex And An Organoaluminum Compound Catalyst", Bull. Chem. Soc. Japan, vol. 41, pp. 150-155 (1968).
M. Iwamoto, et al., "Preparation of 3-Methyl-1,4-Heptadiene, 3-Ethyl-1,4-Hexadiene and Methyl-1,4-Hexadienes", J. Organic Chem. 32, 4148-4149 (1967).
Kagawa, T., et al., "Effects of Ditertiary Phosphine Ligands in Co-Dimerizatin of Butadiene and Ethylene Catalyzed by Cobaltous Chloride-Ditertiary Phosphine-Triethylaluminum", Bull. Chem. Soc. Japan, 43, 1250-1251 (1970).
Henrici-Olive, et al., "Codimerization of Butadiene and Ethylene", J. Organometallic Chem., 35, 381-388 (1972).
Chemical Abstracts, vol. 103, No. 15, 14 Oct. 1985, Columbus, Ohio, US; abstract No. 122975n, p. 682.

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