57 results about "Silurodiscoides" patented technology

The invention discloses an oriental fruit moth imago attractant. The oriental fruit moth imago attractant consists of cis-8-dodecylene acetate, trans-8-dodecylene acetate, cis-8-dodecylene-1-alcohol and trans, trans-8,10-dodecadienoic-1-alcohol. On the basis of the oriental fruit moth imago attractant, the invention further discloses a lure based on the attractant and a preparation method of the lure. The attractant disclosed by the invention has a good attraction effect on oriental fruit moth imagoes, can be used for monitoring the occurrence dynamics of the field oriental fruit moths, and can be used for directing chemical prevention or directly preventing the oriental fruit moths through large-amount trapping and killing.

The invention relates to a sex attractant for fruit tree pest Grapholitha molesta Busck and belongs to the technical field of control on the fruit tree pest Grapholitha molesta Busck. Effective ingredients of sex pheromones of the Grapholitha molesta Busck comprise (Z8)-dodecen-1-acetate, (E8)-dodecen-1-acetate, (Z8)-dodecen-1-ol, (E8, E10)-dodecadien-1-ol, dodeca-1-ol and tetradeca-1-ol, the ingredients of the sex pheromones are mixed with a sustained release solution to form a sex pheromone solution, the sex pheromone solution is added to a release carrier, and a lure and an isotropic tube can be obtained. When the sex attractant is applied to peach orchards and pear orchards, the lure has very strong trapping effect on the Grapholitha molesta Busck, the isotropic tube can significantly interfere with mating activities of female Grapholitha molesta Busck and male Grapholitha molesta Busck, the sex attractant is used for controlling the fruit tree pest Grapholitha molesta Busck and shows the excellent control effect, and the pest-damaged fruit rate of the orchards is greatly reduced.

The invention relates to a pine moth sex pheromone microcapsule and a preparation method thereof, belonging to the field of embedding technology for the pine moth sex pheromone microcapsule. The microcapsule comprises a microcapsule wall material and a microcapsule core material, wherein the microcapsule wall material is a prepolymer liquid formed by reaction among methyl methacrylate, methacrylic acid and an initiator, the microcapsule core material comprises pine moth sex pheromone and liquid paraffin, and pine moth sex pheromone is cis-5,trans-7-dodecadienal, cis-5,trans-7-codlemone, cis-5,trans-7-dodecadienyl acetate and/or cis-5-dodecadienyl acetate. The microcapsule provided by the invention has the advantages of sensitivity, specificity, high efficiency, a long lasting period, degradability, good biocompatibility, no pollution to the environment, low price, etc., can be used for population monitoring and large-scale trapping and killing and control of pine moth, is capable of accurately predicating next-generation population occurrence density and has good economic benefits and ecological benefits.

The present invention relates to one kind of red bordered white moth pheromone inducer, which has sleeve type rubber stopper carrier and hexane solution of the red bordered white moth pheromone dropped to the carrier. The said red bordered white moth pheromone includes cis-5 trans-7 dodecadienoic alcohol, cis-5 trans-7 dodecadienoic acetate and cis-5 trans-7 dodecadienoic propionate. The present invention also relates to the use of the red bordered white moth pheromone inducer. The inducer may be used in monitoring, preventing and trapping and killing red bordered white moth in various areas and countries.

The invention relates to an isotropic agent for preventing and controlling various fruit tree pests such as oriental fruit moth. The isotropic agent comprises the following ingredients: cis-8-dodecen-1-yl acetate, trans, trans-8,10-dodecadine-1-ol, cis-7-eicosenyl-11-ketone, cis-9-tetradodecen-1-yl acetate, cis-9-tetradodecenyl, cis-11-tetradodecen-1-yl acetate, cis-11-tetradodecenyl, cis-10-tetradodecen-1-yl acetate, trans, cis-4,10-tetradecadien-1-yl acetate, lauryl alcohol, cetyl alcohol and an antioxidant, wherein a weight ratio of the ingredients is (0-100): (0-50): (0-100): (0-100): (0-50): (0-100): (0-50): (0-50): (0-50): (1-50): (1-50): (1-10). The isotropic agent disclosed by the invention can slowly release for a long time in fields to disrupt mating of adults of serious fruit tree pests, so as to greatly reduce a mating rate and reduce damage of next generation of larvae; the isotropic agent is safe to environment and natural enemies, convenient to operate and low in cost; the isotropic agent is used for preventing and controlling various fruit tree pests in a large area, and has relatively high economic and social benefits.

The invention discloses a process for synthesizing sex pheromone of pine caterpillar, which employs 2-hexyne-1-alcohol as an initial raw material, three-bond positional transference is carried out under the effect of lithium and propane diamine to obtain 5-hexyne-1-alcohol; under acidic condition, 5-hexyne-1-alcohol is reacted with dihydropyran to obtain 1-THP-5-hexyne-1-alcohol protected by THP on hydroxyl, Under co-catalysis of metal palladium and cuprous iodide, 1-THP-5-hexyne-1-alcohol and trans-dichloroethylene are subjected to coupling reaction to generate conjugate enyne(7E)-1-THP-8-chlorine-5-alkyne-7-alkene-1-octanol; under the catalysis of metallic iron, (7E)-1-THP-8-chlorine-5-alkyne-7-alkene-1-octanol and a n-Butyl bromide grignard reagent are further subjected to coupling reaction to obtain (7E)-1-THP-5-alkyne-7-alkene-1-dodecanol, under the catalytic reduction of metal zinc, (5Z, 7E)-1-THP-dodecanol dienol; under the camphor sulfonic acid condition, (5Z, 7E)-1-THP-dodecanol dienol removes the THP protective group to obtain the final target product (5Z, 7E)-dodecanol dienol. The method of the invention has the advantages of easily available synthesis raw materials, low cost, mild reaction condition, easy operation, high yield and good stereoselectivity.

The invention discloses a Premna Dendrolimus attractant and induced core and making method, which comprises the following parts corresponding to the weight percentage of attractant: 40%-80% cis-5, trans-7-dodecadiene acetate, 35%-10% cis-5, trans-7-dodecadienol, 12. 5%-5% cis-5, trans-7-dodecadiene propionic ester and 12. 5%-5% cis-5-dodecadiene acetate, wherein the Dendrolimus attractant can be dissolved in the hexane or heptane solution to make the density at 20-60mg/ml, which is added on the diaphragm of cuff-typed composite rubber carrier; the attractant can induce male moth during the entire adult stage, which makes female moth loss mating opportunity. The invention can predict and forecast the occurrence of pest, which reduces quantity of the next generation quantity with simple method to be spreaded widely.

The invention relates to a dendrolimus punctatus (walker) sex pheromone microcapsule and a preparation method thereof, and belongs to the field of dendrolimus punctatus (walker) sex pheromone microcapsule embedding technology. The microcapsule comprises a microcapsule wall material and a microcapsule core material; the microcapsule wall material is mainly composed of gelatin and Arabic gum, and the microcapsule core material includes a dendrolimus punctatus (walker) sex pheromone and liquid paraffin; the dendrolimus punctatus (walker) sex pheromone comprises cis-5,trans-7-codlemone, cis-5,trans-7-dodecadiene acetate and cis-5,trans-7-dodecadiene propionate with the quality ratio of 50:40:15. The biological activity of the dendrolimus punctatus (walker) sex pheromone microcapsule has the advantages of sensitivity, specificity, high efficiency, and long effective period; the microcapsule has the advantages of degradability in the environment, good biological compatibility, no pollution to the environment, low price and the like, can be used for population monitoring, mass trapping and killing prevention and control and isotropic interference prevention and control of dendrolimus punctatus (walker), and has good economic benefits and ecological benefits.

The invention discloses a preparation method of (8E, 10E)-8, 10-dodecadienol-1-alcohol. The method comprises the steps of: reacting 6-chlorohexanol with trimethylchlorosilane in the presence of methyl tertiary butyl ether and triethylamine at 0 to 5 DEG C to obtain chloride trimethylethoxysilane; then performing the Grignard reaction on the chloride trimethylethoxysilane to obtain a Grignard agent; and reacting (2E, 4E)-2, 4-hexadiene-1-dryocrassyl acetate with the Grignard agent to obtain (8E, 10E)-8, 10-dodecadienol-1-triethoxysilane; and finally hydrolyzing the (8E, 10E)-8, 10-dodecadienol-1-triethoxysilane to obtain (8E, 10E)-8, 10-dodecadienol-1-alcohol. According to the preparation method, both the purity and the yield of hydroxy-protecting reaction product are relatively high; and the initiating success rate of the Grignard reaction is relatively high, the purity of the coupling reaction product is high.

The invention discloses an attractant composition for preventing and controlling agrotis ypsilon. The attractant composition is prepared from an agrotis ypsilon sex pheromone component and a synergist, wherein the agrotis ypsilon sex pheromone component is one or more of cis-7-dodecenyl acetate, cis-9-tetradecenyl acetate and cis-11-hexadecenyl acetate; the synergist comprises one or more of cis-7-dodecenyl-1-ol propionate, cis-11-hexadecenyl-1-ol-methanesulfonate and cis-8,cis-10-dodecenyl dienyl methyl ketone. The attractant composition disclosed by the invention has the advantages of small dosage and environment friendliness, and also can be accurately applied to insect condition prediction, mass trapping and mating disruption; the effect of comprehensively managing the agrotis ypsilon is remarkably improved; the attractant composition disclosed by the invention has important meaning on comprehensive management of the agrotis ypsilon.

The invention discloses a method for preparing 11-anisyl-3, 7, 11-trimethyl-2, 4-dodecadienoic acid isopropyl ester, which comprises the steps that: 1) normal hexane, 11-anisyl-3, 7, 11-trimethyl-2, 4-dodecadienoic acid ammonium salt and tetraisopropyl titanium ester are sequentially added into a reaction kettle at the nitrogen atmosphere when stirring; 2) the vacuum is started to lead the vacuum degree to achieve 0.04 to 0.06MPa and be kept for 4 to 6min; 3) within 25 to 30min, the temperature is slowly raised to 100 to 105 DEG C and kept for 4 to 6min, and the ammonia gas is removed; 4) within 8 to 12min, the temperature is raised to 145 to 150 DEG C, the vacuum is closed, and the reaction is complete at the temperature of 145 to 150 DEG C; and 5) the temperature of the reaction products is quickly reduced to 8 to 12 DEG C, the normal hexane is added, and then the mixture is poured into sulphuric acid, thus obtaining the final products after washing and solvent removing. The products prepared by the method have lower cis-ester content, and are all qualified.

The invention discloses a sex attractant for melia azedarach cryptophlebia ombrodelta lower. The sex attractant comprises the main effective ingredient of trans-8, 10-dodecadien-1-ol; when in preparation, the trans-8, 10-dodecadien-1-ol is dissolved in an organic solvent and then transferred into organic organic silica gel attracting cores; single attracting core contains 100 to 400mu g of trans-8, 10-dodecadien-1-ol; when in use, the attracting cores are stored in each trap device and can be used for monitoring the action of melia azedarach cryptophlebia ombrodelta lower in the woods, predicating the action degree, guiding to perform the prevention and control measures at proper time, as well as trapping and killing the melia azedarach cryptophlebia ombrodelta lower; the sex attractant is obvious in ecological benefits and social benefits.

In the process for producing a cyclododecanone by isomerizing an epoxycyclododecane-containing starting material in the presence of an isomerization reaction catalyst containing lithium bromide and/or lithium iodide, in order to perform the reaction with high efficiency (high reaction rate) and high selectivity and stably produce a high-purity cyclododecanone in industry while maintaining a high-level reaction rate, the epoxycyclododecane-containing starting material is produced by contacting an epoxycyclododecadiene with hydrogen in the presence of a hydrogen-reduction catalyst and has a content of the hydroxyl group-containing cyclododecane compounds contained in the epoxycyclododecane-containing starting material controlled to 5 mol % or less.

Provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate and (E3,Z5)-3,5-dodecadienyl acetate which is a sex pheromone of Brazilian apple leafminer. Specifically, provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate, comprising steps of hydrolyzing 5,5-diethoxy-(Z3)-3-pentenyl methoxymethyl ether in the presence of an acid to obtain 4-formyl-(E3)-butenyl methoxymethyl ether; reacting the 4-formyl-(E3)-butenyl methoxymethyl ether with alkylidene triphenylphosphorane in accordance with the Wittig reaction to obtain (E3,Z5)-3,5-alkadienyl methoxymethyl ether; and obtaining (E3,Z5)-3,5-alkadienyl acetate using the (E3,Z5)-3,5-alkadienyl methoxymethyl ether as a starting substance.

The invention relates to the field of insecticides, and particularly relates to a preparation method of a juvenile hormone analogue (which comprises S-methoprene and S-hydroprene). The preparation method of the juvenile hormone analogues comprises the following steps of: A. adding (2E, 4E)-11-R-3,7,11-trimethyl-2,4-dodecadienoic acid (R is hydrogen or methoxyl) serving as raw material, an organic alkali catalyst and an organic solvent to a reaction vessel, and starting stirring; B. dropwise adding an organic solvent (the same as the organic solvent in the step A) solution of pyrocarbonate; C. after the addition is completed, reacting at 0-30 DEG C for 0-3 hours; D. adding water to stop reaction, and splitting phases of reaction liquid to obtain an organic phase; E. carrying out reduced pressure concentration and distillation to obtain a product, wherein the steps can also be carried out under the condition that the addition sequences of the pyrocarbonate and an organic strongly-alkaline catalyst are exchanged. The preparation method disclosed by the invention has the advantages of mild reaction condition, high product purity, high yield, environment-friendly and safe route and good industrial prospect.

The invention discloses a marine natural product (+)-(4E, 15Z)-4, 15- docosadienoic-1- alkyne-3-alcohol and a synthetic method of an enantiomer thereof, and belongs to the field of chemical synthesis. With propargyl alcohol as an initial raw material, the method provided by the invention comprises multiple reactive synthesis steps, such as coupling, triple bond transposition, oxidation, selective reduction, asymmetric alkynylation, esterification and hydrolysis and the like, and the key step is to carry out an asymmetric addition reaction on trimethylsilylacetylene and aldehyde to directly obtain a chiral propargyl alcohol structure. The synthetic method disclosed by the invention has the advantages of simple steps, high total yield and high optical purity of the product.

The invention relates to a synthesis method of laspeyresi pomonella sex pheromone. The method comprises the steps as follows: (1) methanol is added to methyl sorbate as a raw material, and an intermediate A sorbic alcohol is obtained through 5% palladium-carbon catalytic hydrogenation reduction; (2) the intermediate A sorbitol obtained in (1) and acetic anhydride are subjected to a reaction in ethyl acetate, triethylamine and water to obtain an intermediate B sorbic acetate; (3) 6-chlorohexanol is subjected to a reaction with trimethylchlorosilane in toluene in the presence of ethyl acetate and triethylamine, after the reaction, water is added, stirring and layering are performed, and an intermediate C6-chlorohexanol trimethylsilyl ester is obtained; (4) the intermediate B sorbic acetate and the intermediate C6-chlorohexanol trimethylsilyl ester are subjected to a reaction with sodium sand in a toluene solution, then, water and sulfuric acid are dropwise added, layering and rectification are performed, and a target product E8,E10-dodecadiene-1-ol is obtained. The synthesis method has the advantages as follows: the laspeyresi pomonella sex pheromone is synthesized from available rawmaterials, the reaction route is short, and the selectivity and product yield can be increased.

A perfume composition comprising an effective amount of at least one alkadienenitrile selected from 4,8-undecadienenitrile and isomers thereof, 4,9-dodecadienenitrile and isomers thereof, and 4,10-tridecadienenitrile and isomers thereof. The isomers of 4,8-undecadienenitrile comprise Z,Z-4,8-undecadienenitrile, E,E-4,8-undecadienenitrile, and mixed Z/E isomers of 4,8-undecadienenitrile; the isomers of 4,9-dodecadienenitrile comprise Z,Z-4,9-dodecadienenitrile, E,E-4,9-dodecadienenitrile, and mixed Z/E isomers of 4,9-dodecadienenitrile; and the isomers of 4,10-tridecadienenitrile comprise Z,Z-4,10-tridecadienenitrile, E,E-4,10-tridecadienenitrile, and mixed Z/E isomers of 4,10-tridecadienenitrile. A composition comprising an effective amount of at least one alkadienenitrile selected from 4,8-undecadienenitrile and isomers thereof, 4,9-dodecadienenitrile and isomers thereof, and 4,10-tridecadienenitrile and isomers thereof. Processes for the preparation of the isomeric alkadienenitriles are provided. The isomeric alkadienenitriles have a range of fresh, citric, ozonic and floral notes of exceptional strength.