477859-76-0Relevant academic research and scientific papers
CRYSTALLINE FORM OF FLUOPYRAM
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Page/Page column 15, (2020/02/16)
The present invention relates to the crystalline form of fluopyram according to formula (1), to a process for its preparation, to agrochemical formulations comprising the crystalline form, and to its use in plant protection applications.
A 2 - (3 - chloro -5 - trifluoro methyl pyridine) - malonic acid dimethyl ester and its synthesis method (by machine translation)
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Paragraph 0027-0050, (2018/11/22)
The invention discloses a 2 - (3 - chloro - 5 - trifluoro methyl pyridine) - malonic acid dimethyl ester and its synthetic method, its synthetic method comprises the following steps: step 1, the dimethyl formamide and 2, 3 - dichloro - 5 - trifluoro methyl pyridine mixed, the mixture thus obtained; step 2, the mixture is added to the anhydrous sodium carbonate, stirring, and thermal insulation reaction temperature, [...] acid dimethyl ester, continue to reaction, gain the light yellow paste; step 3, to the temperature of the yellow paste, stir, filtering, drying, to get the. The invention of the obtained 2 - (3 - chloro - 5 - trifluoro methyl pyridine) - malonic acid dimethyl ester content of 98% or more, the yield is 94% or more; its synthesis method using anhydrous potassium carbonate in substitute for regular for sodium alcoholate, almost no other by-product, the product quality is pure; and a small amount of dimethyl formamide as a solvent, has greatly facilitated the conversion rate of the reaction, the synthesis method is easy to use, temperature is easy to control. (by machine translation)
Process for the Preparation of a 2-Pyridylethylcarboxamide Derivative
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Page/Page column 13, (2008/06/13)
Process for the preparation of a N-[2-(2-pyridinyl)ethyl]carbox-amide derivative of general formula (I) or a salt thereof 5 Intermediate of general formula (II) Intermediate of general formula (III).
