Dimerization process

Details Dimerization process Dimerization process

1976-10-28

1978-11-21

Brust, Joseph Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C12000, C07C12120

Patent

active

041266323

ABSTRACT:
Process for the dimerization of acrylonitrile to predominantly straight-chain 1,4-dicyanobutenes (DCB). The ACN is contacted with an organic phosphinite or phosphonite in the presence of an inert proton-donating solvent and, optionally, an inert non-hydroxylic co-solvent preferably a hydrocarbon, the ACN and solvent(s) being substantially dry. Selectivities of 95% are obtained with respect to 1,4 - DCB.

REFERENCES:
patent: 3538141 (1970-11-01), Kollar
patent: 3574702 (1971-04-01), Feldman et al.

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