Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1977-10-13
1979-02-06
Brust, Joseph Paul
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260945, 260951, 260962, C07C12120, C07C12000
Patent
active
041384288
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 having at least one substituted aryl group attached to the phosphorus atom in the presence of an inert proton-donating solvent and, optionally, an inert non-hydroxylic cosolvent preferably a hydrocarbon, the ACN and solvent(s) being substantially dry. Selectivities of 95% or even 98%, with respect to 1,4 - DCN, may be obtained.
REFERENCES:
patent: 3574702 (1971-04-01), Feldman et al.
Clark et al., Quarterly Reviews, 18 (1964), pp. 295-320.
Organo-Phosphorus Compounds, Kosalapoff et al., (1972), pp. 266, 268, 470, 471, John Wiley & Sons.
Hogan Philip J.
Jennings James R.
Kelly Lawrence F. M.
Brust Joseph Paul
Imperial Chemical Industries Limited
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