Separation of isomers, e. g., phenethyl bromide from 1-phenyl-1-

Details Separation of isomers, e. g., phenethyl bromide from 1-phenyl-1- Separation of isomers, e. g., phenethyl bromide from 1-phenyl-1-

1990-06-13

1993-01-26

Manoharan, Virginia

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203DIG6, 570211, 585462, 585833, B01D 334

Patent

active

051819929

ABSTRACT:
Mixtures of isomers, e.g., mixtures of phenethyl bromide and 1-phenyl-1-bromoethane, are separated by (a) selectively condensing one such isomer with an aromatic compound bearing at least one aryl (nuclear) hydrogen atom, e.g., xylene, in the presence of a catalytically effective amount of a Friedel-Crafts catalyst, e.g., ferric chloride, and then (b) separating the product of condensation, e.g., phenylxylylethane, from the unreacted isomer.

REFERENCES:
patent: 2246762 (1941-06-01), Schirm
patent: 2746938 (1956-05-01), Ehm et al.
patent: 3058892 (1962-10-01), Plesmid
patent: 3453339 (1969-07-01), Ransley
patent: 4219652 (1980-08-01), Zimmerman et al.
patent: 4321383 (1982-03-01), Sprague

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