Para-bromination of ortho-alkyl anilines

Details Para-bromination of ortho-alkyl anilines Para-bromination of ortho-alkyl anilines

1988-05-09

1990-05-15

Ore, Dale R.

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

Organic compounds

Amino nitrogen containing

C07C 8524

Patent

active

049259849

ABSTRACT:
A process of selectively preparing p-bromo-o-alkylanilines (e.g. 4-bromo-2-methylaniline) by reacting o-alkylanilines (e.g., 2-methylaniline) with unadsorbed bromine in a solvent selected from the group consisting of an inert di- tri- or tetrahaloaliphatic hydrocarbon (e.g., dichloromethane and dibromomethane), an alkyl nitrile (e.g., acetonitrile) and mixtures thereof.

REFERENCES:
Onaka et al "Selective Monobromination of Aniline Derivatives by use of Bromine Absorbed on Zeolite 5A", Chem. Lett., No. 11, p. 2007.

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