摘要:
A process for the preparation of a substituted (cyclo) alkanecarboxylic acid .alpha.-cyano-3-phenoxy-benzyl ester of the formula ##STR1## in which R is alkyl or cycloalkyl optionally substituted by halogen, alkyl, cycloalkyl, alkenyl (which is optionally substituted by halogen and/or alkoxy), styryl (which is optionally substituted by halogen, and/or optionally halogen-substituted alkyl, alkoxy, alkylenedioxy and alkylthio radicals), spirocyclically linked, optionally halogen-substituted cycloalk(en)yl (which is optionally benzo-fused) or optionally substituted phenyl andR.sup.5 and R.sup.6 each independently is hydrogen or halogen, comprising adding an aqueous solution or suspension of at least an equimolar amount of a water-soluble cyanide to a mixture of an alkanecarboxylic acid chloride of the formulaR--CO--Cland a 3-phenoxy-benzaldehyde of the formula ##STR2## in a hydrocarbon solvent which is virtually immiscible with water at a temperature between about 0.degree. and 80.degree. C.
摘要:
The method describes a novel production method for coated particles made of rubber granules, the coating, the particles thus coated, and the use of the coated particles.
摘要:
This invention relates to novel substituted 4-pyrazolylpyrazolines of formula (I) in which R1, R2, R3 and R4 are as defined in the disclosure, to a plurality of processes for preparing these substances and their use for controlling pests, and to novel intermediates and processes for their preparation.
摘要:
The phytotoxic action of too high a concentration of peroxygen compounds such as peroxycarboxylic acids and hydrogen peroxide in the combating of phytopathogenic microorganisms, such as fusaria, in the water systems of plant irrigation systems, especially greenhouses, can be eliminated. The water is treated with a peroxycarboxylic acid solution which is brought in contact with a solid decomposition catalyst for active-oxygen compounds before the water is used for irrigation, in order to reduce the content of peroxycarboxylic acid and hydrogen peroxide. The water contacts and flows through a fixed bed of decomposition catalyst, by trickling over it or flowing through the conduits of a monolithic block coated with a decomposition catalyst such as platinum, palladium or rhodium.
摘要:
The new compound ##STR1## is prepared and converted to the new acetal ##STR2## which is reacted with an alkali phenolate or alkaline earth metal phenolate in the presence of copper or a copper compound as a catalyst and in the presence of a diluent at a temperature between about 100.degree. and 200.degree. C. to produce the new acetal ##STR3## which can be hydrolyzed to the corresponding aldehyde which is a known intermediate for pyrethroid-like insecticides.
摘要:
The invention describes a novel production process for coated particles composed of granulated-rubber material, the coating, the particles coated therewith and the uses of the coated particles. The coating formulation is solvent-free.
摘要:
Rapid test to ascertain the effect of irradiation on the abrasion of a granule, in which i.) the abrasion of the granule is determined before the irradiation, ii.) the granule is irradiated, iii.) the abrasion of the irradiated granule is determined, characterized in that, the abrasion is determined by a) grinding the granule in a cutting mill, b) subjecting the ground product to a screening analysis and c) comparing the result of the screening analysis with at least one reference value, in order to classify the abrasion of the granule, the granule is irradiated by arranging a plurality of granule particles in a sample container (2) and irradiating them with an irradiation lamp (3), the granule particles being periodically blended during the irradiation so that different surfaces of the granule particles are irradiated.
摘要:
The present invention relates to novel substituted pyrazolines of the formula (I) in which R1, R2, R3 and R4 are as defined in the disclosure, to a plurality of processes for preparing these substances and their use for controlling pests, and to novel intermediates and processes for their preparation.
摘要:
This invention relates to novel tetrahydropyridazine derivatives of the formula (I) wherein R, X, Y and Z have the meanings outlined in the disclosure, to multiple processes for preparing these materials and to their use to control animal pests.
摘要:
Small creatures from the group of insects and worms which are pathogenic to humans, animals and plants can be controlled effectively by applying or introducing an aqueous percarboxylic acid solution containing one or more percarboxylic acids with 1 to 6 carbon atoms to surfaces and/or into water. A solution which contains peracetic acid and/or performic acid is preferably used. In the case of insects, the larvae of these are controlled in water using an application concentration of 1 to 5000 ppm of percarboxylic acid.