N-(1,2,4-Triazin-5-on-4-yl)-glycines and herbicidal compositions
AssigneeBayer Aktiengesellschaft
InventorsWilfried Draber, Karlfried Dickore, Helmut Timmler, Ludwig Eue, Robert Rudolf Schmidt
Life of this patent
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Abstract
N-(1,2,4-Triazin-5-on-4-yl)-glycine compounds of the formula ##STR1## in which R.sup.1 is alkyl, alkoxy, alkylthio or alkylamino, R.sup.2 is alkyl, cycloalkyl, phenyl or substituted phenyl, R.sup.3 is hydrogen, alkyl, alkenyl or alkynyl and R.sup.4 is hydroxyl, alkoxy, alkythio, amino, alkylamino or dialkylamino, Possess outstanding selective herbicidal properties.
Claims26
N-(1,2,4-triazin-5-on-4-yl)-glycine compound of the formula ##STR27## in which R.sup.1 is alkyl, alkoxy, alkylthio or alkylamino of up to 4 carbon atoms,
- R.sub.2 is alkyl of from 1 to 6 carbon atoms, cycloalkyl of from 5 to 7 carbon atoms, phenyl or substituted phenyl, wherein the substituents are selected from halogen, alkyl and alkoxy of up to 2 carbon atoms, haloalkyl and up to 2 carbon atoms and up to 5 halogen atoms, cyano or nitro;
- R.sup.3 is hydrogen, alkyl of from 1 to 4 carbon atoms, alkenyl or alkynyl of from 2 to 4 carbon atoms;
- and
- R.sup.4 is hydroxyl, alkoxy or alkylthio of from 1 to 4 carbon atoms, amino or alkylamino or dialkylamino of up to 4 carbon atoms in each alkyl moiety.
Method of combating undesired vegetation which method comprises applying to such vegetation or its habitat a herbicidally effective amount of an N-(1,2,4-triazin-5-on-4-yl)-glycine compound of the formula:
- ##STR28## in which R.sup.1 is alkyl, alkoxy, alkylthio or alkylamino of up to 4 carbon atoms,
- R.sup.2 is alkyl of from 1 to 6 carbon atoms, cycloalkyl of from 5 to 7 carbon atoms, phenyl or substituted phenyl, wherein the substituent are selected from halogen, alkyl and alkoxy of up to 2 carbon atoms, haloalkyl of up to 2 carbon atoms and up to 5 halogen atoms, cyano or nitro;
- R.sup.3 is hydrogen, alkyl of from 1 to 4 carbon atoms, alkenyl or alkynyl of from 2 to 4 carbon atoms;
- and
- R.sup.4 is hydroxyl, alkoxy or alkylthio of from 1 to 4 carbon atoms, amino or alkylamino or dialkylamino of up to 4 carbon atoms in each alkyl moiety.
Dependencies are inferred from the claim text.