Benzo-fused cyclic compounds
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United States of America Patent
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Feb 20, 1990
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N/A
app pub date -
Jun 17, 1988
filing date -
Jun 22, 1987
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Expired
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Abstract
Herbicidal benzo-fused cyclic compounds of the formula ##STR1## wherein Q is ##STR2## Y is O or S, W is ##STR3## T is O, S, --NH-- or ##STR4## and R.sup.4 may represent, together with T, chlorine, Z is O or S, X is hydrogen or halogen, n is 0 or 1 and R is C.sub.3-6 cycloalkyl, an optionally substituted 5-membered heterocyclic group or an optionally substituted 6-membered heteroaromatic group which contains one to three nitrogen atoms, and salts thereof.
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