Haloalkylation process

Details Haloalkylation process Haloalkylation process

1994-06-27

1995-12-12

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C07C 1710, C07C 1700

Patent

active

054751705

ABSTRACT:
An improvement in a process for the haloalkylation of a first aromatic compound having at least one free ring position with a haloalkylating reagent and in the presence of a haloalkylation catalyst, said process producing a haloalkylated first aromatic compound and a dimeric reaction by-product of said first aromatic compound having at least one free ring position, the improvement comprising treating said by-product with a second aromatic compound having at least one free ring position the same or different than said first aromatic compound in the presence of a catalytically effective amount of an acid for a time and at a temperature sufficient to cleave said diarylalkane by-product and produce thereby said first aromatic compound having at least one free ring position.

REFERENCES:
patent: 4536595 (1985-08-01), Gardano et al.
patent: 5099083 (1992-03-01), Thomas et al.

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