Selective ortho-chlorination of phenols

Details Selective ortho-chlorination of phenols Selective ortho-chlorination of phenols

1988-07-18

1992-09-22

Brust, Joseph Paul

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

Organic compounds

Nitriles

558423, 568645, 568765, 568775, 568779, C07C25330, C07C 3762

Patent

active

051498588

ABSTRACT:
Phenolic compounds, notably admixtures of 2,4-dichlorophenol and 2,6-dichlorophenol, are selectively chlorinated at the ortho positions thereof, with gaseous chlorine and in a molten medium, in the presence of a selectivity-enhancing effective amount of an organic cation.

REFERENCES:
patent: 4160114 (1979-07-01), Shelton et al.
patent: 4620042 (1986-10-01), Kawai et al.
Chemical Abstracts vol. 72, No. 15, Abst. No. 78573v.

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