Method of producing straight-chain acrylonitrile dimers

Details Method of producing straight-chain acrylonitrile dimers Method of producing straight-chain acrylonitrile dimers

1993-03-04

1994-07-26

Brust, Joseph Paul

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

Organic compounds

Nitriles

558363, C07C25330

Patent

active

053328442

ABSTRACT:
Straight-chain acrylonitrile dimers including 1,4-dicyanobutene, 1,4-dicyanobutadiene and adiponitrile are produced at a high selectivity rate and yield by dimerizing acrylonitrile in the presence of a catalyst comprising at least one ruthenium compound, for example dichloro-tetrakis (dimethylsulfoxide) ruthenium, and in the presence of at least one organic acid, for example, propionic acid, and optionally in the further presence of a basic compound, a reducing compound and/or a sulfoxide compound.

REFERENCES:
patent: 4519954 (1985-05-01), Burrington et al.
patent: 4526884 (1985-07-01), Tsou et al.
patent: 4681968 (1987-07-01), Tsou et al.
Bulletin of the Chemical Society of Japan, Akira Misono, et al. Feb. 1968, pp. 396-401.
Derwent Publications, London 79-45161B 24 (NITT) Nitto Chem Ind KK, (MITR) Mitsubishi Rayon KK.
Derwent Publications London, 74-60788V 34 (NITT) Nitto Chem Ind Co Ltd., (MITS) Mitsubishi Rayon Co. Ltd.
Derwent Publications, London 70-11464R 08 (MITS) Mitsubishi Petrochem Co.
Derwent Publications, London 68-39172Q 00 (MITS) Mitsubishi Petro-Chem Co Ltd.

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