摘要:
Phenoxyalkyloxyzolines corresponding to the formula ##STR1## wherein R is hydrogen or methylZ is a Phenyl-or Pyridyl-radical ##STR2## R.sub.1 is halogen, trifluoromethyl, cyano or nitro R.sub.2 is hydrogen, halogen or cyanoR.sub.3 is halogen trifluoromethyl or cyano andn is 1 or 2.are effective herbicides which are tolerant towards cereal.
摘要:
New phenoxy-alkanecarboxylic acid derivatives which have a herbicidal action and which are effective in regulating plant growth are described. They correspond to the formula ##STR1## in which A is the cyano group, a carboxylic acid, a salt, ester, thioester or amide thereof,Q is a mono- to trisubstituted phenyl or pyrid-2-yl radical,R.sub.3 is hydrogen, halogen, cyano, nitro, alkyl or carbamoyl,R.sub.4 is alkyl, alkoxyalkyl, cycloalkyl, alkenyl, alkynyl, phenyl or benzyl, andX, Y and Z are each oxygen or sulfur.They can be used as selective herbicides in cereal and rice crops, or for reducing the vegetative growth, for example in soya-bean crops, and also for defoliation and desiccation in cotton or potato crops shortly before the harvesting thereof.
摘要:
New phenoxy-alkanecarboxylic acid derivatives which have a herbicidal action and which are effective in regulating plant growth are described. They correspond to the formula ##STR1## in which A is the cyano group, a carboxylic acid, a salt, ester, thioester or amide thereof,Q is a mono- to trisubstituted phenyl or pyrid-2-yl radical,R.sub.3 is hydrogen, halogen, cyano, nitro, alkyl or carbamoyl,R.sub.4 is alkyl, alkoxyalkyl, cycloalkyl, alkenyl, alkynyl, phenyl or benzyl, andX, Y and Z are each oxygen or sulfur.They can be used as selective herbicides in cereal and rice crops, or for reducing the vegetative growth, for example in soya-bean crops, and also for defoliation and desiccation in cotton or potato crops shortly before the harvesting thereof.
摘要:
The present invention concerns new .alpha.-phenoxy-thiolpropionic acids and salts of the formula ##STR1## wherein R is hydrogen a metal cation or the cation of an amino- or ammonio-group, Z is a substituted phenyl or a substituted pyrid-2-yl radical.These compounds have herbicidal activity by themselves but can be used as intermediats for the synthesis of more active derivatives.
摘要:
Novel herbicidally active phenoxy-alkyloxazolines, of the formula ##STR1## are disclosed, wherein A is hydrogen, halogen, cyano, nitro and amido or thiamido radical,B is hydrogen, C.sub.1 -C.sub.4 alkyl,C is halogen, cyano, nitro or trifluoromethyl, amido or thiamido,D is halogen, cyano or nitro,n is 0, 1 or 2,R.sub.1, R.sub.2 and R.sub.3, independently are hydrogen or C.sub.1 -C.sub.4 alkyl andX is oxygen, sulfur, sulfinyl or sulfonyl.
摘要:
Novel pyrazinyl sulfonamides of the formulaQ--SO.sub.2 --NH.sub.2wherein Q is a substituted pyrazine group are intermediates for the production of sulfonylureas and suflonylthioureas which are useful in controlling weeds or selectively influencing plant growth.
摘要:
The invention relates to novel sulfonylureas of the formula I ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl,R.sub.2 and R.sub.3, each independently of the other, are hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkylthio, C.sub.1 -C.sub.5 haloalkyl, halogen, C.sub.1 -C.sub.5 haloalkylthio, C.sub.1 -C.sub.4 alkylamino, C.sub.1 -C.sub.4 dialkylamino, an alkoxyalkyl group or alkoxyalkoxy group, each containing not more than 6 carbon atoms,Z is oxygen or sulfur,E is --CH.dbd. or --N.dbd., andQ is an unsubstituted or substituted 6-membered heterocyclic radical containing 2 to 3 nitrogen atoms and bound through a carbon atom,and the salts thereof.A process for the preparation of the novel compounds and the use thereof are also described. The compounds of formula I can be used in the form of agriculturally useful compositions for controlling weeds and/or for selectively influencing plant growth.
摘要:
The invention relates to novel sulfonylureas of the formula I ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl,R.sub.2 and R.sub.3, each independently of the other, are hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkylthio, C.sub.1 -C.sub.5 haloalkyl, halogen, C.sub.1 -C.sub.5 haloalkylthio, C.sub.1 -C.sub.4 alkylamino, C.sub.1 -C.sub.4 dialkylamino, an alkoxyalkyl group or alkoxyalkoxy group, each containing not more than 6 carbon atoms,Z is oxygen or sulfur,E is --CH.dbd. or --N.dbd., andQ is an unsubstituted or substituted 6-membered heterocyclic radical containing 2 to 3 nitrogen atoms and bound through a carbon atom,and the salts thereof.A process for the preparation of the novel compounds and the use thereof are also described. The compounds of formula I can be used in the form of agriculturally useful compositions for controlling weeds and/or for selectively influencing plant growth.
摘要:
The invention relates to novel suylfonylureas of the formula I ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl,R.sub.2 and R.sub.3, each independently of the other, are hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkylthio, C.sub.1 -C.sub.5 haloalkyl, halogen, C.sub.1 -C.sub.5 haloalkylthio, C.sub.1 -C.sub.4 alkylamino, C.sub.1 -C.sub.4 dialkylamino, an alkoxyalkyl group or alkoxyalkoxy group, each containing not more than 6 carbon atoms,Z is oxygen or sulfur,E is --CH.dbd. or --N.dbd., andQ is an unsubstituted or substituted 6-membered heterocyclic radical containing 2 to 3 nitrogen atoms and bound through a carbon atom,and the salts thereof.A process for the preparation of the novel compounds and the use thereof are also described. The compounds of formula I can be used in the form of agriculturally useful compositions for controlling weeds and/or for selectively influencing plant growth.
摘要:
The claimed invention is a pyrazine of the formula: ##STR1## where Z is oxygen or sulfur and R is C.sub.1 -C.sub.4 alkyl, phenyl or benzyl. The pyrazine ring may be variously further substituted. The above noted pyrazines are useful as intermediates in the production of herbicides.