Heteroaromatically condensed hydroxypyridonecarboxamides, their preparation and use as herbicides
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United States of America Patent
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Jan 14, 1997
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N/A
app pub date -
Jun 17, 1994
filing date -
Aug 21, 1992
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Abstract
Heteroaromatically condensed hydroxypyridonecarboxamides of the structure I ##STR1## where the substituents and the ring Q have the following meanings: R.sup.1 hydrogen, hydroxyl, substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy; R.sup.2 hydrogen, substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, alkenyloxy, dialkylamino; or R.sup.1, R.sup.2 together denote an alkylene chain with 2-6 members and which may be interrupted by oxygen, sulfur or N-methyl; X oxygen or sulfur; Q a 5- or 6-membered heteroaromatic ring containing from 1 to 3 nitrogen atoms and/or one oxygen or sulfur atom as heteroatoms, and which may be substituted one to three times, and environmentally compatible salts thereof.
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