Azolylamidine compounds and herbicidal compositions
AssigneeBayer Aktiengesellschaft
InventorsErik Regel, Ludwig Eue, Robert R. Schmidt
Life of this patent
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Abstract
New azolylamidines of the formula ##SPC1## Wherein n is an integer from 0 to 5, R.sup.1 is halogen, alkyl, alkoxy, alkylthio, haloalkoxy, haloalkylthio, halophenoxy or haloalkyl; R.sup.2 and R.sup.3, independently of one another, are each hydrogen, alkyl, alkoxyalkyl, cycloalkyl, alkoxy or alkoxycarbonylalkyl, of, preferably not more than 7 carbon atoms; or taken together, represent a lower alkylene bridge which can be interrupted by one or more hetero-atoms; and Az represents an azolyl radical selected from imidazol-1-yl, pyrrol-1-yl, pyrazol-1-yl, 1,2,4-triazol-1-yl, 1,2,4-triazol-4-yl or 1,2,3-triazol-1-yl, And their salts are outstandingly effective herbicides showing particularly selective action.
Claims28
Azolylamidine compound of the formula ##SPC19##
- wherein
- n is an integer from 0 to 2, inclusive,
- R.sup.1 is individually selected from halogen, alkyl, alkoxy, alkylthio, haloalkoxy, haloalkylthio, halophenoxy and haloalkyl and contains not more than 6 carbon atoms;
- R.sup.2 is selected from hydrogen, alkyl, or cycloalkyl and contains not more than 7 carbon atoms;
- R.sup.3 is selected from hydrogen, alkyl, and cycloalkyl and contains not more than 7 carbon atoms;
- R.sup.2 and R.sup.3, taken together represent a lower alkylene bridge of up to 5 carbon atoms;
- Az is an imidazolyl radical selected from imidazol-1-yl and imidazol-1-yl substituted with at least one of alkyl of up to 6 carbon atoms, halogen and nitro provided that there is not more than one nitro substituent
- and salts thereof with physiologically tolerated acids.
Azolylamidine compound of the formula ##SPC20##
- wherein
- n is an integer of from 0 to 5, inclusive,
- R.sup.1 is halogen;
- R.sup.2 is selected from hydrogen, alkyl, or cycloalkyl and contains not more than 7 carbon atoms;
- R.sup.3 is selected from hydrogen, alkyl, and cycloalkyl and contains not more than 7 carbon atoms;
- R.sup.2 and R.sup.3, taken together represent a lower alkylene bridge of up to 5 carbon atoms;
- Az is an imidazolyl radical selected from imidazol-1-yl and imidazol-1-yl substituted with at least one of alkyl of up to 6 carbon atoms, halogen and nitro provided that there is not more than one nitro substituent
- and salts thereof with physiologically tolerated acids.
Method of combatting undesired vegetation, which method comprises applying to said vegetation or its habitat a herbicidally effective amount of an azolylamidine compound of the formula ##SPC21##
- wherein
- n is an integer from 0 to 2, inclusive,
- R.sup.1 is individually selected from halogen, alkyl, alkoxy, alkylthio, haloalkoxy, haloalkylthio, halophenoxy and haloalkyl and contains not more than 6 carbon atoms;
- R.sup.2 is selected from hydrogen, alkyl, or cycloalkyl and contains not more than 7 carbon atoms;
- R.sup.3 is selected from hydrogen, alkyl, and cycloalkyl and contains not more than 7 carbon atoms;
- R.sup.2 and R.sup.3, taken together, represent a lower alkylene bridge of up to 5 carbon atoms;
- Az is an azolyl radical selected from imidazol-1-yl and imidazol-1-yl substituted with at least one of alkyl of up to 6 carbon atoms, halogen and nitro provided that there is not more than one nitro substituent.
Dependencies are inferred from the claim text.