Certain 3-trifluoromethyl-5-chloro-2-pyridyloxy-aniline intermediates
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United States of America Patent
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Aug 18, 1987
Issued Date -
N/A
app pub date -
Jan 17, 1986
filing date -
Nov 10, 1981
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Expired
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Abstract
Substituted N-3-(5-trifluoromethyl-pyridyl-2-oxy)phenyl-N'-benzoylureas of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 independently of one another are each hydrogen, methyl, fluorine, chlorine or bromine, and R.sub.4 is hydrogen or chlorine, with the proviso that R.sub.3 is methyl, fluorine, chlorine or bromine when R.sub.4 is chlorine, are active substances having an insecticidal and, in particular, acaricidal action. They can be advantageously used to combat zooparasitic and phytoparasitic ectoparasites.
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