165 results about "Oxime ether" patented technology

The invention discloses a malononitrile oxime ether compound with a novel structure. The structure of the compound is represented by general formula I, and all substituent groups in the formula are defined as in the description. The compound of general formula I has excellent sterilization activity, and has very good prevention and control effects on bacterium diseases and fungus diseases of plants. The invention also discloses a use of the compound of the general formula I in the agriculture and other fields as a bactericide.

The invention relates to a pyrazole oxime ester derivatives and the use, the derivatives are compounds having a structural formula of (II), wherein R1, R2 are C1-C6 alkyl, X is O or S, Y is substituted aryl, Z is methano, Ar is substituted pyridinyl, T is N, R10 is C1-C6 alkyl or substituted alkyl, halogen, OR4 or COOR4, R11 is identical to R10. The derivatives can be used as agricultural insecticide.

The invention discloses a photosensitive resin composition. The photosensitive resin composition comprises ultraviolet photosensitive prepolymer resin, an active diluent monomer, an oxime ether photoinitiator represented by the formula (I), and a colouring agent. The photosensitive resin composition has the good exposure sensibility and developing property; on the premise of low amount of a light-screening agent, or low exposure amount, a cured pattern is complete, clear to develop and high in resolution ratio; the adaptation between the cured pattern and a substrate is excellent; and the photosensitive resin composition has very good application prospects in the aspects of optical colour filters, light spacers, rib barriers and the like.

The invention relates to a preparation method and an application of 1,2,3-thiadiazole pyrazole oxime ether compounds. The preparation method comprises the following step: condensing parazole-containing hydroxyl oxime (II) with substituted substituent 5- chloromethyl-1,2,3- thiadiazole (III) to obtain the 1,2,3-thiadiazole pyrazole oxime ether compounds. The 1,2,3-thiadiazole pyrazole oxime ether compounds I have effective prevention and control effects on harmful insects and can be used for preparing pesticides in the fields such as agriculture and gardening.

The invention relates to preparation and application of a pyrazole oxime ether compound (I) containing trifluoro methyl pyridine. The pyrazole oxime ether compound is prepared by carrying out condensation on pyrazole-containing hydroxamic acid (II) and 2-(4-chloromethyl phenoxyl)-5-trifluoro methyl pyridine (III). The pyrazole oxime ether compound (I) containing trifluoro methyl pyridine has an effective controlling effect on harmful insects and can be used for preparing insecticides for the fields of agriculture, horticulture and the like. A general formula of the pyrazole oxime ether compound (I) is shown in the specification.

The invention provides a method for preparing derivatives of cis-oximes and oxime ethers. The method comprises the following steps of: dissolving chalcone, chalcone derivatives and hydroxylamine or alcoxyl amine salt in a solvent, adjusting a pH value of the solution to a proper value, and adding a catalyst to obtain the cis-oxime or oxime ether compounds. The method has the advantages of obtaining the cis products by one-step reaction, along with easy and convenient operation and suitability for mass production. The invention also provides the oximes and oxime ethers prepared by the method, and the oximes and oxime ethers have the characteristics of high yield and high purity.

The invention relates to preparation and application of a compound (I) which is as shown in the specification and contains 1,3,4-thiadiazole parazole oxime ether. The compound is prepared by condensing pyrazol-containing hydroxamic (II) and substituted 5-ethyoxyl-1,3-4-thiadiazole (III). The compound containing 1,3,4-thiadiazole parazole oxime ether has an effective prevention and control effect on harmful insects. The compound can be used for preparing insecticides in the fields such as the agriculture industry and the gardening industry.

The invention discloses a method for preparing polyhydroxy cyclic nitrones. The method for preparing the polyhydroxy cyclic nitrones of the structure of formula I provided by the present invention comprises the following steps: 1) reacting the hemiacetal of the structure of formula II with O-methylhydroxylamine hydrochloride under alkaline conditions to obtain The methyl oxime ether of the structure of formula III; 2) the methyl oxime ether of the structure of formula III is reacted with methanesulfonyl chloride to obtain the mesylate of the structure of formula IV; 3) The mesylate of the structure of formula IV is subjected to acidic conditions 4) The aldehyde of formula V structure reacts with hydroxylamine hydrochloride under alkaline conditions to obtain the polyhydroxy cyclic nitrone; wherein, R1, R2 and R3 is an alkyl, alkenyl, aryl or substituted aryl group. The present invention can prepare polyhydroxy cyclic nitrones with high reactivity through several steps of reactions by using sugars widely existing in nature as raw materials, thereby realizing the concise, efficient and large-scale preparation of such compounds.

The invention discloses a rotenone oxime-ether with chemical structural formula as showed on the right. The preparation method of rotenone oxime-ether I and II comprises the following steps of: allowing the rotenone oxime, catalyst, alkali and aldylating agent to react in solvent and to be filtered, washed and dried after the reaction; and the rotenone oxime-ether is obtained. New compounds of the rotenone oxime-ether can be used for preparing insecticide and fungicide.

The invention discloses a method for synthesizing oxime ether. The method includes the steps of: adding 1 mol portion of ketoxime in 1- butyl-3- methylimidazole tetrafluoroborate of which the adding amount is 2-20 times of the weight of the ketoxime; then adding 1.05-2.6 mol portions of alkali, dripping 1-1.3 mol portions of alkylating agent at the temperature of 0-50 DEG C within 0.5-2h; after dripping, reacting for 0.5-2h with the temperature preserved; then filtering, adding ether which is 5-20 times of the weight of the 1-butyl-3- methylimidazole tetrafluoroborate in the filtrate and extracting respectively for 4-8 times; combining the upper layer of extraction liquid, recovering ether solvent through distillation and finally conducting rectification separation to obtain the product. The method adopts ion liquid as reaction solvent, which is not volatile, does not generate harmful gas and wastewater, and improves the operation environment. The process is simple, the post treatment investment is low, and the cost is saved; as the ion liquid can be recycled, the method is a green technology; and the product is high in yield and good in quality.

The invention provides a self emission type photosensitive resin composition and a display device comprising a color conversion layer prepared thereby, and more concretely relates to a self emission type photosensitive resin composition comprising fluorochrome, a light polymerism compound, an oxime ether photopolymerization initiator, binder resin and a solvent, and a display device comprising a color conversion layer prepared thereby. The color conversion layer can eliminate the low lighting efficiency caused by existing color filter and light initiator, solve the problem caused by xanthochromia, and keep a high brightness and excellent color conversion features and high lighting efficiency when being arranged in the display device, thus realizing high quality and clear images.

The invention relates to a mixed preparation, in particular to a mixed preparation for preventing and controlling plant diseases and insect pests, and application thereof. A mixture is mixed by a component A and a component B at the mass ratio of 99:1 to 1:99, wherein the component A is fructus psoraleae extractive, and the component B is each class of pesticide effective ingredients and each class of pesticide effective ingredients is one or more of agricultural antibiotic, amide compound, triazole compound, methoxyl acrylate compound, amino acid derivative compound, sulfamide compound, diarylketone compound, oxime ether compound, isoxazoline compound, benzimidazole compound, organic chloride compound, phenylpyrrole compound, imidazole compound, isoprothiolane, Fernasan, mancozeb, hymexazol, cnidium lactone, amino-oligosaccharin, chitin and mushroom proteoglycan. When the mixture disclosed by the invention is adopted, the prevention and controlling effect can be enhanced; the mixturecan also be used for treating various diseases simultaneously happening in a crop growing period in one-time medicine utilization; multiple repeated field operations can be finished in one time; laborforce is saved; cost is lowered.

The invention relates to preparation and application of a pyrazole oxime ether derivative (I) containing 1-(3-chloropyridine-2-yl)-3-trifluoromethylpyrazole structure. The pyrazole oxime ether derivative (I) is obtained by condensation of 1-(3-chloropyridine-2-yl)-3-trifluoromethylpyrazole4-methyl chloride (II) with pyrazole hydroxy oxime (III). The pyrazole oxime ether derivative containing 1-(3-chloropyridine-2-yl)-3-trifluoromethylpyrazole structure has effective control effect on harmful insects, and the compound can be used for preparation of pesticides in agriculture, horticulture and other fields.

The invention relates to a 4-phenyl para-alcohol oxime ether-containing oxazoline compound as shown in the general formula (I), preparation of the compound and an application of the compound in pesticides. The compound represents a novel concise, wide-spectral and high-efficiency insecticidal anti-mite bactericidal herbicide structure type. When used as a novel insecticidal anti-mite bactericidal herbicide, the 4-phenyl para-alcohol oxime ether-containing oxazoline compound can greatly control oriental armyworm, cotton bollworm, corn borer, plutella xylostella, beet armyworm and mosquito larvae, can greatly control Tetrangychus cinnabarinus, can greatly inhibit ten pathogenic bacteria including cucumber fusarium wilt, Cercospora arachidicola, Physalospora piricola Nose, Alternaria solani, Fusarium graminearumt, late blight of potato, sclerotinia sclerotioru, Botrytis cinerea, rice sheath blight and phytophthora capsici, and can control and eliminate weeds including rape, amaranth, barnyard grass and crab grass, wherein the meaning of R is as shown in the specification.

The invention relates to a pyrazole oxime ether compound (I) containing a pyrazole biphenyl structure, and a preparation method and application thereof. The pyrazole oxime ether compound (I) containing the pyrazole biphenyl structure is formed by condensing tetrazole biphenyl methyl chloride (II) and pyrazolyl hydroxyoxime (III). The pyrazole oxime ether compound (I) containing the pyrazole biphenyl structure has an effective control effect on harmful insects. The compound is used for preparing insecticides in the fields such as agriculture and gardening.

The present invention discloses an oxime ether group-containing hydroxypyridone derivative having tyrosinase inhibition activity. The preparation method comprises that the site 5 hydroxy of kojic acid is benzylated, the benzylated kojic acid reacts with ammonia water or fatty amine containing different carbon chain lengths, the site 2 hydroxymethyl is subjected to selective oxidation with active manganese dioxide to obtain a pyridone derivative having an aldehyde group at site 2, O-alkyl hydroxyl amine and the pyridone derivative having the aldehyde group at site 2 are subjected to a condensation reaction, and the benzyl group is removed with hydrochloric acid to obtain the oxime ether group-containing hydroxypyridone derivative. The oxime ether group-containing hydroxypyridone derivative of the present invention can be used as the tyrosinase inhibitor.

The invention relates to a pyrazole oxime ether compound (I) with a 5-(4-fluorophenyl) isoxazole structure as well as a preparation method and an application thereof. The pyrazole oxime ether compound with the 5-(4-fluorophenyl) isoxazole structure is prepared from pyrazole-containing oxime and 5-(4-fluorophenyl)-3-chloromethyl isoxazole through condensation. The pyrazole oxime ether compound with the 5-(4-fluorophenyl) isoxazole structure has an effective control effect on harmful insects and can be used for preparing pesticides in the fields of agriculture, horticulture and the like.

The invention discloses an oxime ether synthesis method. The method comprises the steps as follows: putting ketoxime and organic base in the molar ratio being 1:(1-1.5) into a high-pressure reactor, adding an organic solvent, controlling the reaction temperature at 10-60 DEG C, introducing an alkylation reagent, conducting a reaction for 2-6 h, filtering a reaction solution after the reaction ends, after removing the solvent from filtrate, performing distillation or crystallization to obtain an oxime ether product; the chemical structural formula of oxime ether is shown in formula (I), whereinR1 and R2 independently represent C1-C3 alkyl; R is substituted benzyl or C1-C3 alkyl. An organic phase one-pot method process is adopted to replace a water phase stepped method process, oxime etherhydrolysis side reactions are avoided, the process operation is simplified, the reaction yield is increased, and discharge of wastewater is reduced.

The invention relates to a synthetic method of a bithiazole-4-yl disulfide derivative. The synthesis method comprises the following steps: taking alkynyl oxime ether as a substrate, taking elemental sulfur as a sulfur source, taking 1,8-diazabicycloundec-7-ene as alkali and NMP-H2O (5:1, V:V) as a solvent, and carrying out a reaction at 100-120 DEG C under stirring for 12 hours. Odorless, easily available and cheap elemental sulfur is used as a sulfur source, and the method has the advantages of simple and easily available raw materials, simple operation, relatively mild conditions, wide substrate universality, high yield and good functional group compatibility.

The invention relates to an insecticidal composition in the field of pesticide complex, which comprises the two active ingredients in percentage by weight: 1 to 80 percent of sulfuryl fluoride oxime ether and 80 to 1 percent of chitin synthetic inhibitor compound, and preferably 1 to 50 percent of sulfuryl fluoride oxime ether and 50 to 1 percent of chitin synthetic inhibitor compound. The mass percentage composition of the active ingredients in the insecticidal composition is between 1 and 90 percent, and preferably 5 and 55 percent, and the balance is auxiliary ingredients which are allowedto be used and can be accepted in pesticides; and the insecticidal composition can be prepared into aqueous emulsion, microemulsion, missible oil, suspending agents, wettable powder and aqueous dispersion granules, and is mainly used for preventing and controlling insect pests of tee trees, vegetables and the like.

The invention relates to a preparation method and an application of pyrazole oxime ether compounds (I) containing a 5-aryloxazole structure. The pyrazole oxime ether compounds (I) containing the 5-aryloxazole structure are obtained through condensing 5-aryloxazol-2-methyl chloride (II) and pyrazole oxime (III). The pyrazole oxime ether compounds (I) containing the 5-aryloxazole structure have an effective prevention and control effect on harmful insects, and can be used for preparing pesticides in the fields of agriculture and gardening.

The invention provides a synthesis method of a 2-fluoroarylcarbonyl compound as shown in the formula IV. The synthesis method comprises the steps of converting an arylcarbonyl compound into a corresponding carbonyl oxime ether compound; then, mildly and directly fluorinating a high-selectivity aryl carbon hydrogen bond at the ortho-position of an oximido substituent in the existence of a palladium catalyst, a fluorinated reagent and an additive; finally, hydrolyzing oxime ether again under the action of acid to obtain the 2-fluoroarylcarbonyl compound. The fluorinating method has the advantages of mild reaction conditions, simplicity in operation, good substrate adaptability, high fluorination selectivity and the like, and has relatively high application and research values.

An isolongifolenone oxime ether derivative is prepared by the following steps of: taking isolongifolenone as the raw material, synthesizing isolongifolenone oxime through addition-elimination reaction, and performing alkylation reaction of the isolongifolenone oxime. Simultaneously, the isolongifolenone oxime ether derivative disclosed by the invention can inhibit bacteria, such as staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, bacillus proteus vulgaris and pseudomonas aeruginosa, and fungus, such as Aspergillus niger, exserohilum turcicum, corn sheath blight, alternaria musae Bovr.et Bat. and colletotrichum musae; and the isolongifolenone oxime ether derivative has the excellent insecticidal action for insect pests, such as aphid and rice planthopper.

The invention provides a method for synthesizing 2-fluoroarylcarbonyl compounds, which comprises the following steps: converting arylcarbonyl compounds into corresponding carbonyl oxime ether compounds, mildly implementing aryl hydrocarbon chain direct fluoridation of high-selectivity oximido substituent group ortho-position in the presence of a palladium catalyst, a fluoridation reagent and additives, and finally, rehydrolyzing oxime ethers under the action of acid to obtain the 2-fluoroarylcarbonyl compounds. The fluoridation method has the advantages of mild reaction conditions, high substrate adaptability, high fluoridation selectivity and the like, is simple to operate, and has higher application research value.

The invention relates to a pyrazole oxime ether compound (I) containing a 4-Cl-3-ethyl-1-methylpyrazole structure, a preparation method thereof and the application thereof. The pyrazole oxime ether compound (I) is prepared through the condensation reaction of pyrazole oxime (II) and 4-Cl-5-methyl chloride-3-ethyl-1-methylpyrazole (III). The pyrazole oxime ether compound (I) containing the 4-Cl-3-ethyl-1-methylpyrazole structure has the control effect on harmful insects. The above compound can be used for preparing pesticides in the fields of agriculture, gardening and the like.

The invention discloses a heterocyclic 1,4-pentadiene-3-ketoxime compound 1 as well as a preparation method and application thereof. X in a structural formula 1 is heteroatom O or S, R[1]O can be at the ortho-position and the para-position, and R1 and R2 are one-substituted or multi-substituted aryl and substituted heterocyclic group respectively and can be substituted with one or more groups. A series of heterocyclic 1,4-pentadiene-3-ketoxime compounds are prepared by introducing furan, thiophene and oxime ether active groups on the basis of curcumin derivatives, namely 1,4-pentadiene-3-ketone. A bioactivity test shows that the compounds have the effect of controlling crop pests and especially have a certain control effect on plutella xylostella and aphids; meanwhile, the compounds have a relatively good inhibition effect on tobacco mosaic viruses (TMV).

The invention provides a bactericidal active component and relates to a novel bactericidal active compound composition, which includes a known oxime ether derivative and copper calcium sulphate. The composition is quite suitable for the control of plant phytopathogenic fungi and bacteria. The bactericidal active component composition is characterized by containing a compound of a formula (I) and copper calcium sulphate compound in a weight ratio of 1:1-1:100.

The invention provides an 11-O-mogrol oxime ether derivative represented by formula (I) and serving as an oral liquid antioxidant additive, and an anti-oxidative and anti-aging oral liquid taking thecompound of the formula (I) as an antioxidant. The oral liquid is prepared from, by weight, 0.2 to 0.5 part of the 11-O-mogrol oxime ether derivative of the formula (I), 20 to 30 parts of fructus momordicae decolorized concentrated juice, 3 to 6 parts of okra juice and 100 to 150 parts of water. The oral liquid provided by the invention is mellow and normal in taste, reserves the special flavor ofmomordica grosvenori, and is clear and transparent in color and rich in flavor and fruity flavor. Mouse tests prove that the oral liquid can significantly improve the anti-oxidation ability of mice.Therefore, the oral liquid provided by the invention can effectively relieve and prevent oxidative damage of free radicals in a biological organic body to organs.

The invention discloses oxime ether dichloro-allyl ether compounds (shown in a general formula (I)) with insecticidal activity, a preparation method thereof, an insecticide composition containing the compounds and a method for controlling pests by using the compounds, wherein R, R<1>, n and B are defined in the specification.

The invention relates to a pyrazole oxime ether compound (I) having an oxazole biphenylyl structure as well as a preparation method and application thereof. The pyrazole oxime ether compound (I) is obtained through condensation of oxazole biphenyl methyl chloride (II) and pyrazol hydroxime (III), wherein the pyrazole oxime ether compound (I) having the oxazole biphenylyl structure has an effectiveprevention and control effect on harmful insects, and the compound can be used for preparing pesticides in the field of agriculture, gardening and the like. The formula (1) is shown in the description.