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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 21. Отображено 21.
25-03-2015 дата публикации

Insect aerosol

Номер: CN104430481A
Автор: OU ZHIAN, QIU HONG, LI GUOJIANG, LI JING
Принадлежит:

The invention provides insect aerosol which comprises 0.05-0.20wt% of pyrethroid compound with Formula (1) as shown in the specification as a technical ingredient A, 0.05-0.20wt% of pyrethroid compound with Formula (2) as shown in the specification as a technical ingredient B, 30-70wt% of solvent ingredient C and 29.6-69.9wt% of propellant ingredient D. The insect aerosol has the advantages of high efficiency, low toxicity, no residue and the like, and has an excellent pest killing effect in a pest controlling aspect.

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Номер записи: 1
31-08-2011 дата публикации

Compound containing acetyl pyrethroid, synthesis method and application thereof

Номер: CN0101747199B
Автор: LI GUOJIANG, OU ZHIAN, WANG JUN, YANG SHUHAN, GUOJIANG LI, ZHIAN OU, SHUHAN YANG
Принадлежит:

The invention provides a compound containing acetyl pyrethroid, a synthesis method and application thereof, which belongs to the technical field of organic insecticidal pyrethroid. The compound is named 2,3,5,6-tetrafluoroethane-4-methoxy methyl benzyl-3-acetyl-2,2-dimethyl cyclopropane carboxylate. The synthesis method synthesizes the compound by taking titanate as a catalyst under certain conditions in organic solvent taking 2,3,5,6-tetrafluoroethane-4-methoxy methyl benzyl alcohol and 3-acetyl-2,2-dimethyl cyclopropane carboxylate as raw materials. The invention has the advantages of simple synthesis route, mild feasible process conditions, low production cost, high product yield and purity, low toxicity and easy degradation. The compound has extremely high knocking-down capability andstrong killing capability. Various compositions containing the compound reduce the consumption of active components of insecticide, so product safety is greatly improved, and the insecticide is high in ...

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Номер записи: 2
10-11-2010 дата публикации

Insecticidal ester compound and preparation and application thereof

Номер: CN0101880260A
Автор: WANG JUN, ZHIAN OU, GUOJIANG LI, OU ZHIAN, LI GUOJIANG
Принадлежит:

The invention discloses an insecticidal ester compound and preparation and application thereof. The compound has a structural general formula (Y) shown in the specifications, wherein X is radicals expressed by 3,3,3-trifluoro-1-propinyl (I) and 1-propenyl (II). The invention also relates to effective agents taking the insecticidal ester compound as an active ingredient for controlling harmful insects, intermediates for manufacturing the ester compound and a method for producing the intermediates. The insecticidal ester compound expressed by the formula (Y) has the advantages of high activity for controlling household pests, lower toxicity, structural safety, low toxicity of raw pesticides and low dosage.

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Номер записи: 3
19-08-2009 дата публикации

Fluorine benzyl ethyl cyclopropane dicarboxylate compound, synthesis and uses thereof

Номер: CN0101508647A
Автор: OU ZHIAN, LI GUOJIANG, HUANG RUIQIANG, YANG SHUHAN, ZHIAN OU, GUOJIANG LI, RUIQIANG HUANG, SHUHAN YANG
Принадлежит:

The invention relates to a cyclopropane-carboxylic acid fluorobenzyl ester compound and a synthesis method and the application thereof. The compound is a pyrethroid compound, more particularly a cis-dextro optical isomer compound of compounds of 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl-3-(2,2-dichloro-vinyl)-2,2-dimethylcyclopropane-carboxylic acid ester. In the invention, transesterification for one-step synthesis on certain conditions is carried out by taking cis-dextro 3-(2,2-dichloro-vinyl)-2,2-dimethylcyclopropane-carboxylic acid ester and 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl as raw material and also by taking, in an organic solvent, titanic acid ester as a catalyst; the inventive compound and the compositions thereof have important application in desinsection. The invention is simple in synthesis courses, mild and feasible in technological conditions, low in production cost, high in purity and yield of products, low in toxicity and easy in degradation; the compound has extremely ...

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Номер записи: 4
25-03-2015 дата публикации

Pyrethroid incense coil

Номер: CN104430482A
Автор: OU ZHIAN, QIU HONG, LI GUOJIANG, LI JING
Принадлежит:

The invention provides an incense coil. An active ingredient of the incense coil is an ester compound with the structural formula (1) as shown in the specification. A content of the ester compound in the incense coil is 0.8-1.5%, and the incense coil is prepared by coating an incense coil substrate with the ester compound and a hydrocarbon solvent after mixing. The incense coil has a good control effect on mosquitoes and flies, and is mainly used for indoor domestic hygiene pest killing.

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Номер записи: 5
12-03-2014 дата публикации

Inlet pipe center positioning device of numerical control pipe threading machine

Номер: CN103624611A
Автор: OU YAGUANG, OU ZHIAN
Принадлежит:

The invention relates to an inlet pipe center positioning device of a numerical control pipe threading machine. The inlet pipe center positioning device comprises an inner sleeve and a plurality of large positioning wheel mechanisms. The inner sleeve is fixedly installed in a chuck, flanges are arranged outside the inner sleeve, and grooves are formed in the positions, corresponding to claws, of the flanges; each large positioning wheel mechanism is composed of a large wheel support, a large wheel and a large wheel shaft, the bottom end of each large wheel support is fixedly installed between every two claws on the inner sleeve, each large wheel shaft is sleeved with the corresponding large wheel, the end portion of each large wheel shaft penetrates through a hole of the corresponding large wheel support and is positioned through a cotter pin, and the inner side edges of the large wheels are located on the same circular face. According to the inlet pipe center positioning device of the ...

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Номер записи: 6
15-08-2012 дата публикации

Preparation of high efficiency cholrempenthrin raw powder

Номер: CN0101397252B
Автор: ZHIAN OU, SHUHAN YANG, GUOJIANG LI, RUIQIANG HUANG, OU ZHIAN, YANG SHUHAN, LI GUOJIANG, HUANG RUIQIANG
Принадлежит:

The invention discloses a preparation method of high efficient chlorenthrin original powder, which comprises the steps: pentenoic aldehyde is taken as a raw material and the synthesis is realized by three steps of ethynylation, esterification and high efficient crystallization. The preparation method has reasonable process route, does not use Grignard reagent or Mg and breaks the original processof obtaining yne-pentanol through the catalytic reaction of the raw material of the pentenoic aldehyde and the Grignard reagent Mg, therefore, the preparation method has moderate and feasible processconditions, low production cost, high product total yield, high purity and broad industrial production prospect.

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Номер записи: 7
25-02-2015 дата публикации

Insecticide aerosol

Номер: CN104365653A
Автор: OU ZHIAN, QIU HONG, LI GUOJIANG, LI JING
Принадлежит:

The invention relates to insecticide aerosol. The insecticide aerosol mainly comprises a raw medicine component A, a raw medicine component B, a solvent component C and a propellant component D, wherein the raw medicine component A is a 0.05%-0.20% pyrethroid compound shown as the formula (1) and the raw medicine component B is 0.05%-0.20% cyphenothrin. The raw medicines of the insecticide aerosol mainly comprise a composition of two types of pyrethroid compounds. The insecticide aerosol has the excellent insecticide activity and has the repelling or killing effect when the trace amount of insecticide aerosol is sprayed into insect invasion places or habitats; and the insecticide aerosol mainly aims at insects including mosquitoes, flies, cockroaches and the like.

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Номер записи: 8
18-02-2009 дата публикации

Pyrethroid and synthesis thereof

Номер: CN0101367730A
Автор: ZHIAN OU, GUOJIANG LI, RUIQIANG HUANG, SHUHAN YANG, OU ZHIAN, LI GUOJIANG, HUANG RUIQIANG, YANG SHUHAN
Принадлежит:

The present invention relates to pyrethroid and a synthesis method. The chemical name of the pyrethroid is 2, 3, 5, 6-tetrafluoro-4- methoxymethyl benzyl 3-(3, 3, 3-trifluoro-1-propenyl) -2, 2-dimethylcyclopropane carboxylate (heptafluoro methothrin for short). In the preparation method, 3-(3, 3, 3-trifluoro-1-propenyl) -2, 2-dimethylcyclopropane carboxylate and 2, 3, 5, 6-tetrafluoro-4- methoxymethyl benzyl alcohol are added into an organic solvent; and under certain reaction conditions, an alcohole-ester exchange reaction happens under the effect of a catalyst titanate. The present invention has the advantages that the technical process is simple, the technical conditions are mild and feasible, the production cost is low, the yield rate of the product is high, the purity is high, and the preparation method has broad prospects for industrial application. And the present invention has extremely high striking capability and higher killing capacity, and is a highly efficient and lowly poisonous ...

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Номер записи: 9
25-03-2015 дата публикации

Insect aerosol

Номер: CN104430488A
Автор: OU ZHIAN, QIU HONG, LI GUOJIANG, LI JING
Принадлежит:

The invention provides insect aerosol which comprises 0.05-0.20wt% of pyrethroid compound with Formula (1) as shown in the specification as a technical ingredient A, 0.10-0.20wt% of pyrethroid compound with Formula (2) as shown in the specification as a technical ingredient B, 30-70wt% of solvent ingredient C and 29.6-69.85wt% of propellant ingredient D. The insect aerosol is equivalent to mosquito incense, liquid mosquito incense and an electric warming mosquito incense plate, is convenient, quick and safe to use, and is mainly applicable to domestic hygiene pest killing.

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Номер записи: 10
10-11-2010 дата публикации

Insecticide composition and preparation method and application thereof

Номер: CN0101878776A
Автор: GUOJIANG LI, SHUHAN YANG, ZHIAN OU, WANG JUN, LI GUOJIANG, YANG SHUHAN, OU ZHIAN
Принадлежит:

The invention provides an insecticide composition and a preparation method and application thereof. An active ingredient of the insecticide composition is an ester compound expressed by the formula (Y) in the specifications, wherein X can be: (1) 3-(2-fluo-1-propenyl)-2,2-dimethyl cyclopropane radical, (2) 3-(2-cyano-1-propenyl)-2,2-dimethyl cyclopropane radical and (3) 3-(2-cyano-2-fluorovinyl)-2,2-dimethyl cyclopropane radical. The insecticide composition is prepared from the active ingredient, a stabilizing agent, a synergistic agent and a base material according to a certain proportion, wherein the compound (Y) accounts for 0.05 to 3.0 weight percent of the insecticide composition. The insecticide of the invention has perfect effect of preventing and controlling mosquitoes, flies, cockroaches, ants and other household pests. The invention also provides the preparation method and the application of the insecticide composition.

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Номер записи: 11
10-02-2010 дата публикации

Cyclopropane carboxylic ester compound containing chlorine and fluorine and preparation and application thereof

Номер: CN0101643414A
Автор: OU ZHIAN, YANG SHUHAN, LI GUOJIANG, WANG JUN, ZHIAN OU, SHUHAN YANG, GUOJIANG LI
Принадлежит:

The invention discloses a cyclopropane carboxylic ester compound containing chlorine and fluorine and preparation and application thereof. The compound can be shown by the following construction general formula (X); wherein R in the formula is a group expressed by (I), (II), (III) and (IV), (I) is 1-acetenyl-2-methylpentyl-2-alkenyl, (II) is 2, 5-dioxo-3-(2-propinyl)-1-imidazolidinyl methyl, (III)is 2, 3, 5, 6-tetra fluoro-4-methyl benzyl, and (IV) is 2, 3, 5, 6-tetra fluoro-4-methoxymethyl benzyl. The invention also relates to effective medicine which is active ingredient for controlling harmful insects and contains the cyclopropane carboxylic ester compound in the anti-form construction, intermediate used for producing the ester compound and method for producing the intermediate. The cyclopropane carboxylic ester compound containing chlorine and fluorine expressed by the formula (X) has favourable activity and lower toxicity on controlling house and home insects. The compound is safe ...

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Номер записи: 12
23-06-2010 дата публикации

Method for preparing trans-pyrethroid and application of trans-pyrethroid

Номер: CN0101747198A
Автор: LI GUOJIANG, OU ZHIAN, WANG JUN, YANG SHUHAN, GUOJIANG LI, ZHIAN OU, SHUHAN YANG
Принадлежит:

The invention discloses a method for preparing trans-pyrethroid and application of the trans-pyrethroid. The chemical name of the trans-pyrethroid is (1R)-2,3,5,6-tetrafluoro-4-methoxymethylbenzyl-trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane. (1R)-trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane is used as a raw material, undergoes acid chloride reaction, and then is catalytically synthesized into a compound A together with 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl alcohol in the presence of a high-efficiency catalyst. The process has the characteristics of simple process route, safety and reliability, high quality and yield, less emission of the three wastes, and the like. The invention also provides application of the compound A in sanitary pesticide products for controlling flies, ants, louses, and the like.

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Номер записи: 13
18-02-2009 дата публикации

Preparation of pyrethroid midbody

Номер: CN0101367722A
Автор: OU ZHIAN, LI GUOJIANG, HUANG RUIQIANG, YANG SHUHAN, ZHIAN OU, GUOJIANG LI, RUIQIANG HUANG, SHUHAN YANG
Принадлежит:

The invention relates to a preparation method of the intermediate of pyrethroid, the chemical name is 3-(3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropane carboxylic acid. The preparation method has following procedures: 3-(3,3,3-trifluoro-1- propargyl)-2,2-dimethyl cyclopropane carboxylic acid ester is reduced to prepare 3-(3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropane carboxylic acid methyl ester, and then saponified and acidified to prepare 3-(3,3,3- trifluoro-1-propenyl)-2,2-dimethyl cyclopropane carboxylic acid, and then chloridized by acyl and esterified to obtain septenary-fluorine methothrin (2,3,5,6-tetra-fluorine-4-methoxymethyl benzyl 3-(3,3,3- trifluoro-1-propenyl)-2,2-dimethyl cyclopropane carboxylic acid ester). The procedure of the method is reasonable, simple, safe and reliable, and the overall yield of the product is high and the purity is high; the preparation method has wide industrial application prospect.

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Номер записи: 14
25-03-2015 дата публикации

Pyrethroid incense stick

Номер: CN104430319A
Автор: OU ZHIAN, QIU HONG, LI GUOJIANG, LI JING
Принадлежит:

The invention provides a pyrethroid incense stick. An active ingredient of the incense stick is an ester compound with the structural formula (1) as shown in the specification. A content of the ester compound in the incense stick is 0.8-1.5%, and the effective incense stick is prepared by coating an incense stick substrate with the ester compound and a hydrocarbon solvent after mixing. The incense stick has a good control effect on mosquitoes and flies.

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Номер записи: 15
19-08-2015 дата публикации

Preparation method of trans-(+)-DV-chrysanthemic acid

Номер: CN104844451A
Автор: LI GUOJIANG, OU ZHIAN, QIU HONG
Принадлежит:

The invention discloses a preparation method used for preparing trans-(+)-DV-chrysanthemic acid via resolution of trans-(+/-)-DV-chrysanthemic acid with a D-para hydroxybenzene glycine ester hydrochloride resolving agent. The preparation method comprises following steps: the D-para hydroxybenzene glycine ester hydrochloride is dissolved so as to prepare an aqueous solution of D-para hydroxybenzene glycine ester hydrochloride, and at the same time, trans-(+/-)-DV-chrysanthemic acid is reacted with a weak base so as to obtain an aqueous solution; the aqueous solution of D-para hydroxybenzene glycine ester hydrochloride is directly added into the trans-(+/-)-DV-chrysanthemic acid aqueous solution, and a D-para hydroxybenzene glycine ester-(+)-trans-DV-chrysanthemum acid salt is obtained via stirring, and (+)-trans-DV-chrysanthemum acid salt is obtained via separation, and the resolving agent and D-para hydroxybenzene glycine ester hydrochloride used in resolving processes are recycled. The ...

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Номер записи: 16
25-03-2015 дата публикации

Pyrethroid incense stick

Номер: CN104430318A
Автор: OU ZHIAN, QIU HONG, LI GUOJIANG, LI JING
Принадлежит:

The invention provides a pyrethroid incense stick. An active ingredient of the incense stick is an ester compound with the structural formula (1) as shown in the specification. A content of the ester compound in the incense stick is 0.05-0.20%, and the effective incense stick is prepared by coating an incense stick substrate with a mixture of the ester compound with Formula (1) and a hydrocarbon solvent.

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Номер записи: 17
01-04-2009 дата публикации

Preparation of high efficiency cholrempenthrin raw powder

Номер: CN0101397252A
Автор: OU ZHIAN, LI GUOJIANG, HUANG RUIQIANG, YANG SHUHAN, ZHIAN OU, GUOJIANG LI, RUIQIANG HUANG, SHUHAN YANG
Принадлежит:

The invention discloses a preparation method of high efficient chlorenthrin original powder, which comprises the steps: pentenoic aldehyde is taken as a raw material and the synthesis is realized by three steps of ethynylation, esterification and high efficient crystallization. The preparation method has reasonable process route, does not use Grignard reagent or Mg and breaks the original process of obtaining yne-pentanol through the catalytic reaction of the raw material of the pentenoic aldehyde and the Grignard reagent Mg, therefore, the preparation method has moderate and feasible process conditions, low production cost, high product total yield, high purity and broad industrial production prospect.

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Номер записи: 18
04-03-2015 дата публикации

Electric heated liquid mosquito-repellent incense

Номер: CN104381290A
Автор: OU ZHIAN, QIU HONG, LI GUOJIANG, LI JING
Принадлежит:

The invention provides electric heated liquid mosquito-repellent incense. According to the electric heated liquid mosquito-repellent incense, mosquitoes are prevented and treated by heating an absorbing core rod soaked in the mosquito-repellent incense to volatilize effective components, the electric heated liquid mosquito-repellent incense comprises a 0.05-0.20% pyrethroid compound as shown in the formula (1), and a solvent which is one of or a mixture of multiple of ester, alkane or alcohol compounds is adopted. The electric heated liquid mosquito-repellent incense provided by the invention has the advantages of high efficiency, low toxicity, convenience and rapidness in use, safety, and the like, is very good in knocking and lethal effect, and is applicable to domestic hygiene insect killing. The following is the formula (1) (in the specification).

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Номер записи: 19
23-06-2010 дата публикации

Compound containing acetyl pyrethroid, synthesis method and application thereof

Номер: CN0101747199A
Автор: LI GUOJIANG, OU ZHIAN, WANG JUN, YANG SHUHAN, GUOJIANG LI, ZHIAN OU, SHUHAN YANG
Принадлежит:

The invention provides a compound containing acetyl pyrethroid, a synthesis method and application thereof, which belongs to the technical field of organic insecticidal pyrethroid. The compound is named 2,3,5,6-tetrafluoroethane-4-methoxy methyl benzyl-3-acetyl-2,2-dimethyl cyclopropane carboxylate. The synthesis method synthesizes the compound by taking titanate as a catalyst under certain conditions in organic solvent taking 2,3,5,6-tetrafluoroethane-4-methoxy methyl benzyl alcohol and 3-acetyl-2,2-dimethyl cyclopropane carboxylate as raw materials. The invention has the advantages of simple synthesis route, mild feasible process conditions, low production cost, high product yield and purity, low toxicity and easy degradation. The compound has extremely high knocking-down capability and strong killing capability. Various compositions containing the compound reduce the consumption of active components of insecticide, so product safety is greatly improved, and the insecticide is high in ...

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Номер записи: 20
04-03-2015 дата публикации

Insect aerosol

Номер: CN104381291A
Автор: OU ZHIAN, QIU HONG, LI GUOJIANG, LI JING
Принадлежит:

The invention relates to insect aerosol which is mainly prepared from a raw medicine component A which is a 0.05-0.2% pyrethroid compound of the formula (1) as shown in the specification, a raw medicine component B which is 0.05-0.2% dextrorotation tetramethrin, a solvent component C and a propellant component D. The raw medicine of the inset aerosol is mainly a composition of two pyrethroid compounds. The insect aerosol provided by the invention is excellent in insecticidal activity and is mainly aims at sanitary pests such as mosquitoes, flies and cockroach. The following is the formula (1) (in the specification).

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Номер записи: 21