摘要:
The invention relates to a novel process for preparing chloroacetanilides of the formula ##STR1## wherein: R.sub.1 and R.sub.2 represent independently from each other a hydrogen atom or a C.sub.1-8 alkyl or C.sub.1-8 alkoxy group; andR.sub.3 stands for a straight chained or branched C.sub.1-8 alkoxy group.Said process is characterized by chloroacetylating a 2,6-dialkylaniline of the formula ##STR2## wherein R.sub.1 and R.sub.2 are as defined above, at a temperature of 10.degree. to 120.degree. C., optionally in a solvent medium in the presence of an acid binding agent, then reacting a thus-obtained intermediate with chloromethyl chloroformiate or, alternatively, reacting a compound of the formula (II) first with chloromethyl chloroformiate and subjecting then to chloroacetylation, thereafter reacting a thus-obtained intermediate with an alcohol of the formulaR.sub.3 --OH (III),wherein R.sub.3 is as defined above, optionally in a solvent medium in the presence of an acid binding agent, and recovering a product of the formula (I) in a known manner.The process of the invention enables the more simple and economic preparation of the compounds of formula (I) of improved purity.
摘要:
The invention relates to compositions useful for prolonging the action and increasing the selectivity of herbicide compositions containing .alpha.-chloroacetamide derivatives as active ingredient as well as to highly selective herbicide compositions containing .alpha.-chloroacetamide derivatives as active ingredients and optionally an antidote wherein an animal derivative of the general formula (III) is used for achieving the prolonged action and increased selectivity. In the formula (III) ##STR1## R.sub.5, R.sub.6, R.sub.7 and R.sub.8 stand independently for hydrogen, a C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl or C.sub.2-5 alkenyl group optionally substituted by a C.sub.1-4 alkyl group; andR.sub.9 stands for hydrogen or a C.sub.1-4 alkyl group optionally substituted by halogen, or a phenyl group.
摘要:
The invention relates to a herbicide composition comprising as herbicidally active ingredient an urea derivative and/or a thiolcargamate derivative and/or a chloroacetanilide derivative together with a nitrile derivative of the general formula (I), ##STR1## wherein R.sub.1 and R.sub.2 which are the same or different, stand for hydroger, halogen or a methyl, ethyl, allyl, vinyl, phenyl or benzyl group; orR.sub.1 and R.sub.2 together may stand for a benzylidene group; andR.sub.3 means chlorine or a methyl, phenyl, chlorophenyl, alkoxyphenyl, chlorophenylamino, anilino, anilinomethylene, N-alkylanilinomethylene, N,N-dialkylanilinomethylene, alkoxyanilinomethylene, benzylaminomethylene, cyclohexylaminomethylene, N-alkyl-cyclohexylaminomethylene, hexamethyleniminomethylene, phthalimidomethylene, nitrophthalimidomethylene, morpholinomethylene, piperidinomethylene, C.sub.1-3 alkylaminomethylene, allylaminomethylene or di(C.sub.1-3 alkyl)aminorethylene groupand/or together with a cyanopyridine and/or with a benzonitrile derivative optionally mono- or polysubstituted by halogen(s) or C.sub.1-3 alkoxy group(s) as antidote(s) in a mass ratio from 40:1 to 1:1 of the herbicidally active ingredient to the antidote nitrile derivative.
摘要:
The present invention relates to novel compounds of the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and stand for alkyl having 1 to 4 carbon atoms optionally substituted by one or more halogen atoms, alkenyl having 2 to 6 carbon atoms, cycloalkyl having 3 to 6 carbon atoms, phenyl or lower alkoxy-alkyl group,R.sub.3 stands for alkyl having 1 to 6 carbon atoms or alkenyl having 2 to 6 carbon atoms,R.sub.4 and R.sub.5 are the same or different and represent hydrogen, alkyl having 1 to 6 carbon atoms, alkenyl having 2 to 6 carbon atoms, cycloalkyl having 3 to 6 carbon atoms, phenyl, benzyl, phenyl substituted by one or more alkyl having 1 to 3 carbon atoms and/or by one or more halogen atoms, lower alkoxy-alkyl, a group of the formula --(CH.sub.2).sub.n --R.sub.6, wherein n is an integer between 0 to 3 and R.sub.6 stands for a 3 to 7 membered saturated or unsaturated ring comprising 1 to 3 heteroatoms, said heteroatoms can be selected from the group of nitrogen and/or oxygen and/or sulphur, and R.sub.4 and R.sub.5 can together form with the adjacent nitrogen atom a hexamethylene-imino group.The compounds of the invention exhibit acaricidal, insecticidal and fungicidal activity.
摘要:
The invention relates to a herbicide composition as well as to the preparation of carboxylic-acid-amido-thiol-carbamate derivatives forming the active agent of the composition. The carboxylic acid-amido-thiolcarbamate derivatives are illustrated by general formula (I) ##STR1## wherein R.sub.1 and R.sub.2 can be identical or different and can stand for hydrogen, a C.sub.1-10 straight or branched alkyl group, a C.sub.2-10 straight or branched alkenyl group, a C.sub.5-6 cycloalkyl or phenyl group, a phenyl radical substituted by a C.sub.1-3 alkyl group, a C.sub.1-3 dialkyl group or halogen, but R.sub.1 and R.sub.2 can form together a hexamethylene group, too;R.sub.2 can stand for a C.sub.1-5 straight or branched alkyl radical;R.sub.4 can represent a C.sub.1-10 straight or branched alkyl group, a C.sub.2-10 straight or branched alkenyl group, furthermore a phenyl or benzyl radical.
摘要:
The present invention relates to novel compounds of the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and stand for alkyl having 1 to 4 carbon atoms optionally substituted by one or more halogen atoms, alkenyl having 2 to 6 carbon atoms, cycloalkyl having 3 to 6 carbon atoms, phenyl or lower alkoxy-alkyl group,R.sub.3 stands for alkyl having 1 to 6 carbon atoms or alkenyl having 2 to 6 carbont atoms,R.sub.4 and R.sub.5 are the same or different and represent hydrogen, alkyl having 1 to 6 carbon atoms, alkenyl having 2 to 6 carbon atoms, cycloalkyl having 3 to 6 carbon atoms, phenyl, benzyl, phenyl substituted by one or more alkyl having 1 to 3 carbon atoms and/or by one or more halogen atoms, lower alkoxy-alkyl, a group of the formula --(CH.sub.2).sub.n --R.sub.6, wherein n is an integer between 0 to 3 and R.sub.6 stands for a 3 to 7 membered saturated or unsaturated ring comprising 1 to 3 heteroatoms, said heteroatoms can be selected from the group of nitrogen and/or oxygen and/or sulphur, and R.sub.4 and R.sub.5 can together form with the adjacent nitrogen atom a hexamethylene-imino group. The compounds of the invention exhibit acaricidal, insecticidal and fungicidal activity.
摘要:
The present invention relates to novel N- and optionally N'-substituted (N-dichloroacetyl)glycine amides of the formula I with antidote action, to antidote compositions containing such compounds, to selective herbicide compositions containing these antidotes together with herbicidally active compounds and to a method for treating cultivated plants with said compositions.
摘要:
The invention provides a system for solid-phase synthesis of oligosaccharides, based on the discovery that a 2-substituted-1,3-dioxocycloalkyl linker group of general formula (I) can be used to couple saccharide groups of both the O-glycoside and N-glycoside type to a polymer support. The invention provides reagents, reagent kits and methods for solid-phase oligosaccharide synthesis.
摘要:
The invention provides a system for solid-phase synthesis of oligosaccharides, based on the discovery that a 2-substituted-1,3-dioxocycloalkyl linker group of general formula (I) can be used to couple saccharide groups of both the O-glycoside and N-glycoside type to a polymer support. The invention provides reagents, reagent kits and methods for solid-phase oligosaccharide synthesis.
摘要:
2-oxo-3-(.beta.-cyanoethyl)-9,10-methylenedioxy-1,2,3,4,6,7-hexahydro-11bH-benzo(a)quinolizidine (SC-118) especially and the corresponding 9,10-diethoxy compound are superior antiphlogistics which are used in effective amounts in antiphlogistic therapy.