Method for preparing aromatic compounds

Details Method for preparing aromatic compounds Method for preparing aromatic compounds

1997-06-16

1999-03-23

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

562493, 561184, 568323, C07C 6976

Patent

active

058862102

ABSTRACT:
A method for synthesizing aromatic compounds by selectively dehalogenating aromatic starting materials is provided. Compounds may be prepared which are substituted with fluoro, chloro or bromo. The method may be used to remove halogen atoms from sites at which halogenation is not desired, and to form substantially pure halogenated compounds from mixtures of starting materials. The method uses a copper containing dehalogenation agent and an acid with the dehalogenation being controlled by a substituent such as a carboxylic acid, amide, ester, aldehyde, ketone or cyano on the aromatic ring.

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patent: 4981999 (1991-01-01), O'Reilly et al.
W. T. Smith, Jr., J. Am. Chem. Soc., 71, 2855 (1949).
Jojima et al., Bulletin of the Chemical Society of Japan, 52(8), 2441-2 (1979).
Weinstock et al., Organic Preparations and Procedures, Inc., 13(2), 103-108 (1981).

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