8-hydroxy-quinoline derivatives for the protection of cultivated plants
AssigneeCiba-Geigy Corporation
InventorAdolf Hubele
Life of this patent
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Abstract
A process for the protection of cultivated plants against harmful effects of aggressive agricultural chemicals by the use of compounds of the formula I ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 independently of one another are each hydrogen, halogen, C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.3 -alkoxy, nitro or cyano, R.sub.4, R.sub.5 and R.sub.6 independently of one another are each hydrogen, halogen or C.sub.1 -C.sub.3 -alkyl, A is any one of the groups --CH.sub.2 --, --CH.sub.2 --CH.sub.2 -- or --CH(CH.sub.3)--, and Z is cyano, or amidoxime which can be acylated on the oxygen atom, including acid addition salts and metal complexes thereof.
Claims5
A compound of the formula ##STR194## wherein R.sub.1 is hydrogen, chlorine, bromine, iodine or nitro;
- R.sub.2 is hydrogen;
- R.sub.3 is hydrogen, fluorine, chlorine, bromine, iodine, C.sub.1 -C.sub.3 -alkyl or nitro;
- R.sub.4 is hydrogen, bromine or methyl;
- R.sub.5 is hydrogen;
- R.sub.6 is hydrogen or methyl;
- A is any one of the groups --CH.sub.2 --, --CH.sub.2 --CH.sub.2 -- or --CH(CH.sub.3)--, and Z is ##STR195## in which E is --OR.sub.8 or --SR.sub.9, wherein R.sub.8 and R.sub.9 are C.sub.1 -C.sub.8 -alkyl which is unsubstituted or substituted by halogen;
- C.sub.2 -C.sub.4 -alkenyl;
- C.sub.3 -C.sub.6 -alkynyl;
- phenyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.3 -alkoxy, trifluoromethyl or nitro;
- or benzyl which is unsubstituted or substituted by halogen or nitro;
- including herbicidally acceptable acid addition salts thereof and herbicidally acceptable metal complexes thereof.
Dependencies are inferred from the claim text.