Selective reaction of 1,4-disubstituted benzene compounds

Details Selective reaction of 1,4-disubstituted benzene compounds Selective reaction of 1,4-disubstituted benzene compounds

C - Chemistry, Metallurgy

07

C

260/689

C07C 15/02 (2006.01) B01J 29/40 (2006.01) B01J 29/70 (2006.01) C07C 4/18 (2006.01) C07C 7/148 (2006.01) C07C 17/361 (2006.01) C07C 37/50 (2006.01) C07C 45/67 (2006.01) C07C 45/85 (2006.01) C07C 209/68 (2006.01)

Patent

CA 1122228

ABSTRACT Isomeric mixtures of disubstituted aromatic compounds are brought into contact with a shape selective crystalline zeolite catalyst, under conversion conditions, to undergo selective reaction of the 1,4-isomer, thereby leaving the 1-2-isomer and/or 1,3-isomer in excess of equilibrium. The shape selective zeolite catalyst employed herein comprises a crystalline zeolite having a silica to alumina ratio of at least 12 and a constraint index, as herein defined, within the approximate range of 1 to 12.

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