5-Amino-1-phenyl-pyrazole-4-carboxylic acid derivatives and their use for controlling undesirable plant growth
First Claim
1. A 5-Amino-1-phenyl-pyrazole-4-carboxylic acid derivative of the formula ##STR10## where R1 is methyl, trifluoromethyl, chlorine or bromine, R2 is chlorine, bromine, iodine or methylsulfonyl, R3 is a methoxy radical in the 5-position or is hydrogen, chlorine or bromine, and A is --OR4, where R4 is alkenyl of 3 to 12 carbon atoms which is unsubstituted or substituted by phenyl, or is alkynyl of 3 to 10 carbon atoms, phenalkyl, where alkyl is of 1 to 8 carbon atoms, phenoxyalkyl, where alkyl is of 2 to 8 carbon atoms and the phenyl ring is unsubstituted or substituted by halogen, alkyl of 1 to 4 carbon atoms or methoxy, cycloalkylmethyl of 4 to 7 carbon atoms in total, or alkyl of 2 to 4 carbon atoms which is substituted by alkoxy of 1 to 12 carbon atoms, alkylthio of 1 to 12 carbon atoms, allyloxy, propargyloxy, chlorine or bromine, and salts thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
5-Amino-1-phenyl-pyrazole-4-carboxylic acid derivatives of the formula ##STR1## where R1, R2, R3 and A have the meanings given in the description, are used for controlling undesirable plant growth.
-
Citations
6 Claims
- 1. A 5-Amino-1-phenyl-pyrazole-4-carboxylic acid derivative of the formula ##STR10## where R1 is methyl, trifluoromethyl, chlorine or bromine, R2 is chlorine, bromine, iodine or methylsulfonyl, R3 is a methoxy radical in the 5-position or is hydrogen, chlorine or bromine, and A is --OR4, where R4 is alkenyl of 3 to 12 carbon atoms which is unsubstituted or substituted by phenyl, or is alkynyl of 3 to 10 carbon atoms, phenalkyl, where alkyl is of 1 to 8 carbon atoms, phenoxyalkyl, where alkyl is of 2 to 8 carbon atoms and the phenyl ring is unsubstituted or substituted by halogen, alkyl of 1 to 4 carbon atoms or methoxy, cycloalkylmethyl of 4 to 7 carbon atoms in total, or alkyl of 2 to 4 carbon atoms which is substituted by alkoxy of 1 to 12 carbon atoms, alkylthio of 1 to 12 carbon atoms, allyloxy, propargyloxy, chlorine or bromine, and salts thereof.
- 4. A herbicidal composition comprising a carrier and a herbicidally effective amount of a 5-amino-1-phenyl-pyrazole-4-carboxylic acid derivative of the formula ##STR11## where R1 is methyl, trifluoromethyl, chlorine or bromine, R2 is chlorine, bromine, iodine or methylsulfonyl, R3 is a methoxy radical in the 5-position or is hydrogen, chlorine or bromine, and A is --OR4, where R4 is alkenyl of 3 to 12 carbon atoms which is unsubstituted or substituted by phenyl, or is alkynyl of 3 to 10 carbon atoms, phenalkyl, where alkyl is of 1 to 8 carbon atoms, phenoxyalkyl, where alkyl is of 2 to 8 carbon atoms and the phenyl ring is unsubstituted or substituted by halogen, alkyl of 1 to 4 carbon atoms or methoxy, cycloalkylmethyl of 4 to 7 carbon atoms in total, or alkyl of 2 to 4 carbon atoms which is substituted by alkoxy of 1 to 12 carbon atoms, alkylthio of 1 to 12 carbon atoms, allyloxy, propargyloxy, chlorine or bromine, or a salt thereof.
Specification