Process for the preparation of haloanthranilic acids
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United States of America Patent
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Apr 28, 1998
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N/A
app pub date -
Jan 13, 1995
filing date -
Jan 11, 1992
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Expired
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Abstract
The present invention relates to a process for the preparation of compounds of the general formula I ##STR1## in which X and Y, independently of each other, represent hydrogen, fluorine, chlorine or bromine, but cannot simultaneously represent hydrogen, characterised in that compounds of the general formula II ##STR2## in which X and Y are defined as above, are reacted with aqueous ammonia under copper catalysis, and to intermediates for the preparation of compounds of the general formula I.
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