Selective reaction of 1,4-disubstituted aromatic compounds

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

1978-12-14

1980-01-01

Crasanakis, George

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By dealkylation

585481, C07C 1508

Patent

active

041818113

ABSTRACT:
Isomeric mixtures of non-polar disubstituted aromatic compounds are brought into contact with a shape selective crystalline zeolite catalyst, under cracking or transalkylation 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.

REFERENCES:
patent: 3770841 (1973-11-01), Meyers, Jr.
patent: 3856872 (1974-12-01), Morrison
patent: 3856874 (1974-12-01), Hayward
patent: 3873632 (1975-03-01), Pollitzer
patent: 3948758 (1976-04-01), Bonacci et al.
patent: 4100214 (1978-07-01), Dwyer
patent: 4101596 (1978-07-01), Mitchell et al.

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