Process for the preparation of 1,1-bis(4-chlorophenyl)-2,2,2-tri

Details Process for the preparation of 1,1-bis(4-chlorophenyl)-2,2,2-tri Process for the preparation of 1,1-bis(4-chlorophenyl)-2,2,2-tri

1990-07-18

1992-01-14

Lone, Werren B.

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

Organic compounds

Oxygen containing

568809, 568812, C07C 2974, C07C 2986

Patent

active

050813196

ABSTRACT:
1,1-bis(4-chlorophenyl)-2,2,2-trichloroethanol is separated from a mixture comprising by way of the formation of an addition compound between 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethanol and a moderately electron donating compound, preferably selected from a group formed by dimethyl sulphoxide, cyclohexanone, isophoron, pyridine, 1,4-dioxane, acetic acid, acetonitrile and water.

REFERENCES:
patent: 2812280 (1957-11-01), Wilson et al.
patent: 2812362 (1957-11-01), Wilson et al.
patent: 4705902 (1987-11-01), Nichols et al.
patent: 4778568 (1988-10-01), Schneider et al.

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