- Synthesis method of cyromazine active compound with high yield
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The invention relates to a synthesis method of a cyromazine active compound with high yield, cyanuric chloride, cyclopropylamine and ammonia gas are used as raw materials, single toluene is used as a solvent to synthesize the cyromazine active compound, the purity is more than 98%, and the yield is as high as 93%. The method has the characteristics of simplicity in operation, high solvent utilization rate, high product yield, less environmental pollution and the like. The labor load of workers is reduced, the production cost is reduced, and the environmental pollution is reduced.
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Paragraph 0040-0063
(2021/05/29)
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- Safe and environment-friendly cyromazine synthesis method
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The invention discloses a safe and environment-friendly cyromazine synthesis method which comprises the following steps: reacting cyanuric chloride serving as a raw material with ammonium salt under the action of a catalyst to obtain an intermediate 2-chlorine-4, 6-diamino-1, 3, 5-triazine, and reacting the intermediate 2-chlorine-4, 6-diamino-1, 3, 5-triazine with cyclopropylamine to obtain cyromazine. According to the method, the ammonium salt is used as the source of ammonia, the yield of cyromazine can be effectively increased under the action of the catalyst, high-pollution flammable andexplosive ammonia water or liquid ammonia can be prevented from being used, meanwhile, due to the fact that the use amount of the ammonium salt is greatly reduced, the ammonia nitrogen value in the wastewater can be reduced, pollution is reduced from the source, and the process safety is improved; the treatment difficulty and the treatment cost of the wastewater can also be reduced.
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Paragraph 0006; 0019-0028
(2021/03/18)
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- Preparation method of cyromazine
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The invention discloses a preparation method of cyromazine. Melamine is used as an initial raw material; the preparation method comprises the following steps: carrying out an acidic hydrolysis reaction to obtain 4, 6-diamino-2-hydroxy-1, 3, 5-triazine, carrying out a chlorination reaction on 4, 6-diamino-2-hydroxy-1, 3, 5-triazine to obtain a toluene solution of 4, 6-diamino-2-chloro-1, 3, 5-triazine, and carrying out an amination reaction on 4, 6-diamino-2-chloro-1, 3, 5-triazine and cyclopropylamine so as to generate cyromazine. According to the method, toxic 2-cyclopropylamino-4, 6-dichloro-S-triazine is prevented from being generated, ammoniation pressurizing equipment is prevented from being used, reaction conditions are milder, cheaper materials are used, and the prepared cyclopropylamine is high in yield and good in quality.
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Paragraph 0023; 0026-0027; 003-0031; 0034-0035; 0038-0039; 0
(2020/09/16)
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- A cyclopropanecarboxylic ammonia qin preparation method (by machine translation)
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A cyclopropanecarboxylic ammonia qin preparation method, comprises the following steps: 1) under stirring conditions, for 0 - 5 °C lower, the cyanuric chloride is dissolved in organic solvent, drip and processing industry ammonia water, heated to 40 - 45 °C, thermal insulation reaction 5 - 6.5 h, to the reaction solution, the separated solvent, is added to the residual liquid purified water, stirring 1 - 1.5 h, to room temperature, filtered, washing, drying, get intermediate, the intermediate body is 2 - chloro - 4.6 - diamino - 1.3.5 - triazine; 2) at room temperature, step 1) preparation of the intermediate is added to the purification in the water, and then adding the amine, heating up to 90 - 95 °C, [...], adjusting the pH to 7.5 - 8.5; then the 98 - 100 °C lower, reaction 3.5 - 4.5 h, decoloring, filter, to obtain a reaction solution; cooling to 40 - 50 °C, crystalline 1 - 2 h, to cool down to - 5 - 0 °C, filtered, washed, dried, a cyclopropanecarboxylic ammonia qin. Preparation method of the invention, the process is simple, high safety, low cost, convenient to industrial production, and the product has high purity, low impurity content, good stability. (by machine translation)
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Paragraph 0033; 0034; 0037; 0041
(2018/08/04)
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- Active agent combinations
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The novel active compound combinations of extracts from seeds of the neem tree and the active compounds of groups (B) to (F) listed in the description have very good insecticidal and acaricidal properties.
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- Method for exterminating termites
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A method for exterminating termites comprising using an entomopathogenic nematode together with an inset-growth regulator or a slow-acting insecticide, wherein insecticidal effects are reinforced compared with the cases using singly the entomopathogenic nematode and the insect-growth regulator or the slow-acting insecticide, respectively, and a bait station for exterminating termites that contains an entomopathogenic nematode with an insect-growth regulator or a slow-acting insecticide. According to the invention, emission of harmful chemicals to environment can be suppressed. The invention is nonpoisonous for human being and livestock, and is useful for indoor or outdoor extermination of termites.
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- Insecticidal combination to control mammal fleas, in particular fleas on cats and dogs
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Process and composition, in particular for controlling fleas on small mammals, characterized in that the composition includes, on the one hand, at least one insecticide of 1-N-arylpyrazole type, in particular fipronil, and, on the other hand, at least one compound of IGR (insect growth regulator) type, in doses and proportions which are parasiticidally effective on fleas, in a fluid vehicle which is acceptable for the animal and convenient for local application to the skin, preferably localized over a small surface area.
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- 2-Cyclopropylamino-4,6-diamino-s-triazine
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2-Cyclopropylamino-4,6-diamino-s-triazine and acid addition salts thereof for combatting developmental stages of insects.
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- Procedure for treating mammals to control parasitic diptera larvae
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The present invention relates to a procedure for treating domestic animals and productive livestock belonging to the class of Mammalia (mammals) for systemic control of tissue-parasitic insect larvae of the order of Diptera, which comprises parenteral or transcutaneous administration to the animals to be treated of an effective dose of an active substance of the general formula I STR1 in which R1 is hydrogen, methyl, ethyl or cyclopropyl, R2 is hydrogen or methyl, R3 is hydrogen, methyl or cyclopropyl and R4 is hydrogen or methyl, or of an an acid addition salt thereof which is non-toxic to mammals or of a composition which contains the active substance or an acid addition salt thereof which is non-toxic to mammals.
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- Procedure for treating mammals to control parasitic diptera larvae
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The present invention relates to a procedure for treating domestic animals and productive livestock belonging to the class of Mammalia (mammals) for systemic control of tissue-parasitic insect larvae of the order of Diptera, which comprises peroral administration, to the animals to be treated, of an effective dose of an active substance of the general formula I STR1 in which R1 is hydrogen, methyl, ethyl or cyclopropyl, R2 is hydrogen or methyl, R3 is hydrogen, methyl or cyclopropyl and R4 is hydrogen or methyl, or of an acid addition salt thereof which is non-toxic to mammals or of a composition which contains the active substance or an acid addition salt thereof which is non-toxic to mammals.
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