Process for producing 1,4-dicyano-2-butene

Details Process for producing 1,4-dicyano-2-butene Process for producing 1,4-dicyano-2-butene

C - Chemistry, Metallurgy

07

C

C07C 255/09 (2006.01) C07C 253/10 (2006.01) C07C 253/16 (2006.01)

Patent

CA 2116155

ABSTRACT OF THE DISCLOSURE The object of the present invention is to provide a process for producing 1,4-dicyano-2-butene in a high yield and in an industrially advantageous way. The present invention relates to a process for producing 1,4-dicyano-2-butene which comprises reacting a butene derivative represented by the formula [1] R1-CH2-CH=CH-CH2-R2 [1] or the formula [2] R3-CH2-CHR4-CH=CH2 [2] wherein each of R1 and R3 represents a hydroxy group, lower acyloxy group, lower alkoxy group or cyano group; and each of R2 and R4 represents a hydroxy group, lower acyloxy group or lower alkoxy group, with hydrogen cyanide in the presence of a catalyst comprising a product prepared from a cuprous halide, a non-aromatic amine hydrohalide and at least one member selected from the group consisting of Lewis acids and basic compounds.

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