Method for synthesizing chlorpyrifos by adopting microreactor
A technology of microreactor and chlorpyrifos, which is applied in chemical instruments and methods, compounds of group 5/15 elements of the periodic table, chemical/physical/physicochemical processes, etc., can solve problems such as difficulty in controlling the quality of finished products, and achieve improved product quality. quality, shorten the reaction time, and improve the effect of reaction yield
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[0025] A method for synthesizing chlorpyrifos using a microreactor (Shandong Jinde New Material Co., Ltd. model C0-4 can be selected), the process is as follows:
[0026] Put 100 g of sodium clopyridinate raw material into a four-necked bottle, wherein the sodium clopyridinate sodium in the raw material has a mass percentage of sodium clopyridinate greater than 85.5%, and the structural formula of sodium clopyridinate is shown in formula (1). Add the solvent acetonitrile whose weight is 1.7-2.5 times of the raw material of sodium clopyridinate and the water whose weight is 2.0-2.4 times of the raw material of sodium clopyridinate. Then, add catalysts A1, A2 and A3, stir to form a solution for later use, and obtain a sodium alkoxide solution. The mass percentages of A1, A2 and A3 in the sodium alkoxide solution are 0.2-0.3%, 0.25-0.35% and 0.1-0.15% respectively. Wherein, A1 is one of 2-methylcyclohexylamine, 4-dimethylaminopyridine and 4-methylaminopyridine; A2 is 4-butylammo...
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