32890-94-1Relevant articles and documents
Preparation method of 2-fluoro-6-(trifluoromethyl) benzamide
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Paragraph 0037-0055, (2021/04/21)
The invention provides a preparation method of 2-fluoro-6-(trifluoromethyl) benzamide, which comprises the following steps: adding an acid-binding agent and a chlorinating agent into an organic solution of 2-fluoro-6-(trifluoromethyl) benzoic acid, carrying out acylating chlorination on the 2-fluoro-6-(trifluoromethyl) benzoic acid, and then adding an aminating agent to amidate the 2-fluoro-6-(trifluoromethyl) benzoyl chloride. The preparation method of 2-fluoro-6-(trifluoromethyl) benzamide provided by the invention has the advantages of simple steps, superior quality, high yield and high purity, and is suitable for industrial production.
Preparation method of Elagolix intermediate 2-fluoro-6-trifluoromethyl benzylamine
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Paragraph 0027-0030, (2020/11/23)
The invention discloses a preparation method of an Elagolix intermediate 2-fluoro-6-trifluoromethyl benzylamine, and belongs to the technical field of medical intermediates. The preparation method comprises the following steps: (1) synthesizing 2-fluoro-6-(trifluoromethyl) benzyl alcohol; (2) synthesizing 2-fluoro-6-(trifluoromethyl) benzyl alcohol; (3) synthesizing a 2-fluoro-6-(trifluoromethyl)benzenemethanesulfonate compound and a phthalimide compound; (4) directly synthesizing a phthalimide compound; (5) synthesizing the 2-fluorine-6-trifluoromethyl benzylamine. According to the preparation method, factors such as a reaction reagent and a reaction solvent are optimized, so the reaction conditions are mild, the technological process is simple and convenient, the requirements on equipment are relatively low, the price of raw materials is lower, the purity of the obtained product is high, and industrial production is facilitated.
Substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides, compositions containing them, and their utility as herbicides
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, (2008/06/13)
Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonamides, e.g., 5,7-dimethyl-N-(2,6-dichlorophenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide and their agriculturally acceptable salts are prepared. These compounds and compositions containing them are useful for the control of unwanted vegetation. Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonyl chlorides and substituted anilines and their use as intermediates are also described.