Dihalo propene compound, and preparation and use thereof

The invention discloses a dihalogenated propylene compound shown in the general formula (I), in which R<1> is a alkyl having 1 to 5 carbon atoms, a phenyl or a substitutional phenyl; R<2> is an alkyl having 1 to 5 carbon atoms, or a halogenated alkyl having 1 to 5 carbon atoms; R<3> is hydrogen, halogen, a alkyl having 1 to 3 carbon atoms, an alkoxylate having 1 to 3 carbon atoms , a nitryl, a cyano, a thiocyanato, a trifluoromethyl sulfonamide, or a trifluoromethyl sulfinic group; R<4> is halogen, a alkyl having 2 to 4 carbon atoms, a cyano, or a nitryl; X is halogen, n is 2-4, and m is 2-4. The invention also discloses the method for preparing the dihalogenated propylene compound. The dihalogenated propylene compound provided by the invention has excellent effect on prevention and control of pest insects, so that the compound can be used to prepare pesticides in the field of agriculture and gardening, and has the advantages of high efficiency, low toxicity and environmental compatibility ...

Dihalo propene compound, and preparation and use thereof

The invention discloses a dihalogenated propylene compound shown in the general formula (I), in which R<1> is a alkyl having 1 to 5 carbon atoms, a phenyl or a substitutional phenyl; R<2> is an alkyl having 1 to 5 carbon atoms, or a halogenated alkyl having 1 to 5 carbon atoms; R<3> is hydrogen, halogen, a alkyl having 1 to 3 carbon atoms, an alkoxylate having 1 to 3 carbon atoms , a nitryl, a cyano, a thiocyanato, a trifluoromethyl sulfonamide, or a trifluoromethyl sulfinic group; R<4> is halogen, a alkyl having 2 to 4 carbon atoms, a cyano, or a nitryl; X is halogen, n is 2-4, and m is 2-4.The invention also discloses the method for preparing the dihalogenated propylene compound. The dihalogenated propylene compound provided by the invention has excellent effect on prevention and control of pest insects, so that the compound can be used to prepare pesticides in the field of agriculture and gardening, and has the advantages of high efficiency, low toxicity and environmental compatibility ...

Vinyl cyanide compounds, preparation and application thereof

The present invention discloses an acrylonitrile compound, a preparation method thereof, and a pest prevention and curing agent with the compound as an active constituent. The compound has structural characteristics as shown in Formula (I). In the preparation method, under the condition with alkaline, an organic solvent at the temperature between minus 10 DEG C and 150 DEG C is used for the reaction between benzofuran acyl chloride or pyrazole acyl chloride and substituted benzyl cyanide, so as to produce an intermediate, the produced intermediate reacts with acyl chloride, and the (I) can be separated. The compound can be used as an active constituent in a pest prevention and curing agent. The present invention has the advantages that the compound has excellent prevention and curing effects on harmful insects and acarus category, the activity of the compound is high, the consumption is low and the security is excellent.

Disinsection acaricidal cream and aqueous emulsion containing alpha-cyano-N-benzyl pyrazole acidamide compound

The invention discloses a composite which is used for killing pests and mites, contains alpha-cyano-N-phenmethyl pyrazole amide compounds; the composite takes alpha-cyano-N-phenmethyl pyrazole amide compounds of the formula (I) and pyrethroid compounds as the active ingredients. The composite has the characteristics of killing pests and mites, and synergy to the tetranychus mites.

Pyrazolecarboxamide compounds, intermediate thereof and pest control chemicals with the same as active component

Vinyl cyanide compounds, preparation and application thereof

The present invention discloses an acrylonitrile compound, a preparation method thereof, and a pest prevention and curing agent with the compound as an active constituent. The compound has structural characteristics as shown in Formula (I). In the preparation method, under the condition with alkaline, an organic solvent at the temperature between minus 10 DEG C and 150 DEG C is used for the reaction between benzofuran acyl chloride or pyrazole acyl chloride and substituted benzyl cyanide, so as to produce an intermediate, the produced intermediate reacts with acyl chloride, and the (I) can beseparated. The compound can be used as an active constituent in a pest prevention and curing agent. The present invention has the advantages that the compound has excellent prevention and curing effects on harmful insects and acarus category, the activity of the compound is high, the consumption is low and the security is excellent.

Dihalo-propylene compound and preparation method and application thereof

The invention discloses a dihalo-propylene compound shown by a general formula (I), wherein R<1> is C1-C5 alkyl, phenyl or substituted phenyl, R<2> is C1-C5 alkyl or C1-C5 haloalkyl, R<3> is hydrogen, halogen, C1-C3 alkyl, C1-C3 alkoxy, nitro, cyano, sulfur cyano, trifluoromethyl sulfonyl or trifluoromethyl sulfinyl; R<4> is halogen, C1-C5 alkyl, cyano or nitro; X is halogen; and n is between 2 and 4, and m is between 2 and 4. The invention also discloses a method for preparing the dihalo-propylene compound. The dihalo-propylene compound has excellent control efficiency to harmful insects, thus the dihalo-propylene compound can be applied to preparing insecticides in the fields of agriculture, gardening and the like, and has the advantages of high efficiency, low toxicity and environmental protection.

Disinsection acaricidal cream and aqueous emulsion containing alpha-cyano-N-benzyl pyrazole acidamide compound

The invention discloses a composite which is used for killing pests and mites, contains alpha-cyano-N-phenmethyl pyrazole amide compounds; the composite takes alpha-cyano-N-phenmethyl pyrazole amide compounds of the formula (I) and pyrethroid compounds as the active ingredients. The composite has the characteristics of killing pests and mites, and synergy to the tetranychus mites.

Prepn of wide-spectrum biopesticide of Chinese herbal medicine

The present invention features that the pesticide is one kind of biological preparation produced with six kinds of Chinese medicinal materials including omphalia lapialia, Celastrusang ulatus, rangoon creeper, areca, ricepaper pith and aucklandia root and through selecting material, compounding, crushing, bacterial liquid culture, decoction, filtering, deposition, anticorrosion preservation treatment and packing. It is used to spray onto fruit tree, flower and crops, and can kill pests through damaging their cuticle structure and penetrating into pest body. It has obvious killing effect on budworm, scale insect, caterpillar, leaf rollers, etc. and has no environmental pollution and is safe to human body and farm animal. It is used to replace chemical pesticide in producing no-pollutionagricultural product.

Propionic ester compound, intermediate, preparation method and herbicide containing the same compound

Preparation method of Cidofovir and intermediate thereof

The invention discloses a preparation method of Cidofovir of a structural formula (I) and an intermediate thereof. The preparation method comprises the following steps: (1) a compound of a formula (II) reacts with epoxy halogenopropane in the presence of a catalyst in an alkaline environment to obtain a compound of a formula (III); (2) cytosine reacts with a compound of a formula (IV) in the presence of a proper solvent to obtain a compound of a formula (V); (3) compounds obtained in the two steps are condensed in the presence of the proper solvent to obtain a compound of a formula (VI); (4) the compound of the formula (VI) reacts with p-benzenesulfonyloxymethyl phosphoric acid diethylester in the presence of the proper solvent to obtain a compound of formula (VII); and (5) the compound of the formula (VII) is treated at proper pressure to obtain a compound of a formula (VIII). The preparation method shortens synthetic route and lowers synthesis cost, is simple and practical, has the advantages ...

Pyrazole methanol esters compounds, preparation method and application thereof

The invention discloses pyrazole methanol ester compounds shown as the General Formula (I): wherein, R<1> expresses C1-C5 alkyl, phenyl or substituted phenyl; R<2> expresses C1-C5 alkyl or C1-C5 alkyl halide; R<3> expresses C1-C5 alkyl, C1-C5 alkyl halide, cycloalkyl, substituted cycloalkyl, aryl, substituted aryl or hetero aryl; X expresses hydrogen, halogen, C1-C3 alkyl, C1-C3 alkoxy, nitro, cyano, sulfur cyano, trifluoromethyl sulfonyl or trifluoromethyl sulfinyl. The invention also discloses a preparation method and applications of the compounds. The pyrazole methyl ester compounds has excellent control efficiency on harmful pathogenic bacteria, harmful insects and mites and can be used for preparing insecticides, acaricides or fungicides for the agriculture, horticulture and floriculture fields. The pyrazole methyl ester compounds also can be used for preparing control agents of harmful living beings in the fields of forestry, animal husbandry and public health, etc.