摘要:
This invention relates to new phenoxyphenylthioalkanecarboxylic acid derivatives with herbicidal and plant growth-regulating activity of the formula ##STR1## wherein A is hydrogen or C.sub.1 -C.sub.4 alkyl, B is a salt of a carboxylic-acid, an ester, a thioester, an amide or an imidoether thereof, X is hydrogen, halogen, cyano, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, D is hydrogen, halogen, cyano or trifluoromethyl, E is halogen, cyano, nitro or trifluoromethyl and N is 0 or 1.
摘要:
There have been produced novel cyanoalkyl-phenylureas which have herbicidal activity and which exhibit good selectivity in various crops of cultivated plants. The novel cyanoalkyl-phenylureas correspond to the formula I defined herein ##STR1##
摘要:
3-Phenoxy-.alpha.-phenoxy-alkancarboxylic acid derivatives of the formula ##STR1## are disclosed as possessing a surprising selective herbicidal activity. In the formula, Hal is a halogen atom, m is an integer 1, 2 or 3, Y is a hydrogen or halogen atom or the cyano group, Z is a halogen atom or the cyano group, R.sub.1 is hydrogen or C.sub.1 -C.sub.8 alkyl, and R is an acid function. Methods are disclosed for combatting weeds in mono- and dicotyledonous cultures such as cereals, corn, rice, soya and cotton, which comprise applying to the locus to be protected from weeds a dosage of from 0.1 to 10.0 kilograms per hectare of the above compounds.
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 phenylformamidine compounds are disclosed, which have the structure ##STR1## in which R is an unsaturated, halogenated radical, particularly a propenyl, butenyl or benzyl radical, mono- or disubstituted by fluorine chlorine or bromine. These compounds and their acid addition salts possess herbicidal properties.
摘要:
The invention relates to thiocarbamoylalkoxyphenylureas of the general formula ##STR1## wherein X is hydrogen, halogen, C.sub.1 -C.sub.2 haloalkoxy or C.sub.1 -C.sub.2 haloalkyl,Y is a thiocarbamoylalkyl group of the formula ##STR2## n is 0, 1 or 2, R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.2 -C.sub.4 alkynyl or C.sub.1 -C.sub.4 alkoxy,R.sub.2 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 alkenyl,R.sub.3, R.sub.4 and R.sub.6, each independently or the other, are hydrogen or C.sub.1 -C.sub.4 alkyl,R.sub.5 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or C.sub.2 -C.sub.5 alkoxyalkyl,R.sub.7 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.2 -C.sub.4 alkynyl, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.2 alkylphenyl, andR.sub.8 is hydrogen or C.sub.1 -C.sub.4 alkyl, while R.sub.1 and R.sub.2 or R.sub.7 and R.sub.8, together with the nitrogen atom to which they are attached, can form a 5- or 6-membered heterocyclic ring system which can be interrupted by further hetero-atoms.These compounds have excellent selective herbicidal and plant growth inhibiting properties.
摘要:
The m-Cyanoalkoxy-phenylureas of the formula I ##STR1## wherein X is hydrogen or halogen, Y--O is a preferably branched-chain cyanoalkoxy group, and --NR.sub.1 R.sub.2 is a primary, secondary or heterocyclic amino group, exhibit surprisingly good herbicidal activity against mono- and dicotyledonous plants, with a selective action in crops of maize, cereals, cotton and soya bean, and in the case of some of these compounds also in rape crops.
摘要:
3-Phenoxy-.alpha.-phenoxy-alkanecarboxylic acid derivatives of the formula ##STR1## Wherein Hal is a halogen atom, n is an integer from 1 to 3, R is an acid function and Z is hydrogen or C.sub.1 -C.sub.4 alkyl, are disclosed as possessing a surprising selective herbicidal activity. Methods are disclosed for combatting weeds in mono- and dicotyledonous cultures such as cereals, corn, rice, soya and cotton, which comprise applying to the locus to be protected from weeds a dosage of from 0.1 to 10.0 kilograms per hectare of the above compounds.
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:
Phenoxyphenoxyalkanoylthioamides of the formula I ##STR1## wherein X.sub.1 is chlorine or trifluoromethyl, X.sub.2 is chlorine or nitro, R.sub.1 is C.sub.1 -C.sub.4 alkyl, and R.sub.2 is the amino group or an amidino group ##STR2## wherein each of R.sub.3 and R.sub.4 independently is hydrogen or C.sub.1 --C.sub.4 alkyl or taken together they form a C.sub.4 --C.sub.5 alkylene chain, have herbicidal and growth regulating properties. They are suitable for selectively controlling weeds in crops of useful plants, especially in cereals and rice.