Process for the production of 1,4-bis-(dicyano-methylene)-cycloh

Details Process for the production of 1,4-bis-(dicyano-methylene)-cycloh Process for the production of 1,4-bis-(dicyano-methylene)-cycloh

1983-01-10

1984-10-02

Brust, Joseph Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C12000, C07C12148

Patent

active

044747080

ABSTRACT:
A process for the production of 1,4-bis-(dicyanomethylene)-cyclohexane from a cyclohexane-1,4-dione-2,5-dicarboxylic acid alkylester by saponification with water, optionally under pressure, and by subsequent or simultaneous condensation with malonic acid dinitrile, optionally with the assistance of a catalyst.

REFERENCES:
patent: 3097227 (1963-07-01), Williams
patent: 3162641 (1964-12-01), Acker et al.
patent: 4229364 (1980-10-01), Crawford
Acker, et al., J.A.C.S., 84, (1962), pp. 3370-3374.
Melby, et al., J.A.C.S., 84, (1962), pp. 3374-3387.

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