120100-04-1Relevant articles and documents
Weeding corrosion inhibition granule and preparation method thereof
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Paragraph 0023; 0048-0050, (2019/04/10)
The invention provides a weeding corrosion inhibition granule and a preparation method thereof, and belongs to the technical field of a herbicide. The raw materials of the weeding corrosion inhibitiongranule comprise a phase A and a phase B, wherein the p
Preparation method for tefuryltrione
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Paragraph 0034; 0035; 0039; 0040; 0044; 0045, (2019/04/10)
The invention provides a preparation method for tefuryltrione, and belongs to the technical field of compound preparation. The preparation method comprises the following steps that esterification reaction is carried out on 2-chloro-3-methyl-4-methylsulfon
Process for synthesis of Triketone-based herbicide link sulphur grass alkone
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Paragraph 0044-0046, (2016/11/24)
The invention relates to a process for synthesizing triketone herbicide cyclic sulcotrione. The method comprises the following steps: (1) synthesizing 2-chloro-6-methylsulfonyl methylbenzene; (2) synthesizing 2-chloro-3-acetyl-6-methylsulfonyl methylbenzene; (3) synthesizing 2-chloro-3-methyl-4-methylsulfonyl benzoic acid; (4) synthesizing methyl 2-chloro-3-methyl-4-methylsulfonyl benzoate; (5) synthesizing methyl 2-chloro-3-bromomethyl-4-methylsulfonyl benzoate; (6) synthesizing 2-chloro-3-(2,2,2-trifluoroethyoxy)methyl-4-methylsulfonyl benzoic acid; (7) synthesizing 2-chloro-3-(2,2,2-trifluoroethyoxy)methyl-4-methylsulfonyl benzoic acid 3-oxo-1-cyclohexene ester; and (8) synthesizing cyclic sulcotrione. The process disclosed by the invention has the beneficial effects that the reaction steps are reduced, the reaction time is shortened, and the yield of intermediates is improved; the reaction conditions are mild and safe; and the cost is reduced.