37595-74-7Relevant articles and documents
Preparation method of N-phenyl bis (trifluoromethanesulfonyl) imine
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Paragraph 0026-0052, (2022/01/12)
The invention relates to a preparation method of N-phenyl bis (trifluoromethanesulfonyl) imine, and belongs to the technical field of chemical engineering. The method comprises the following steps: dissolving trifluoromethanesulfonic acid and organic alkali in an organic solvent, and adding HATU for reaction; the reaction temperature is greater than or equal to 15 DEG C, and the organic solvent is not boiled; after the reaction is finished, a reaction solution containing trifluoromethanesulfonic acid active ester is obtained; adding aniline into the reaction liquid, and reacting at 25 +/-5 DEG C for 6-12 hours; and after the reaction is finished, removing the organic solvent to obtain a crude product containing the N-phenyl bis (trifluoromethanesulfonyl) imine, washing, and recrystallizing and purifying by using an alcohol solvent with 1-3 carbon atoms to obtain the N-phenyl bis (trifluoromethanesulfonyl) imine. The N-phenyl bis (trifluoromethanesulfonyl) imine with high purity and high yield can be prepared by the method, the reaction condition is mild, the utilization rate of raw materials is high, and the method is green and environment-friendly.
Preparation method of N-phenyl-bis(trifluoromethanesulfonyl)imide
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Paragraph 0026; 0028; 0029; 0031; 0032; 0034-0035, (2021/05/26)
The invention provides a preparation method of N-phenyl-bis(trifluoromethanesulfonyl)imide. The preparation method comprises the following steps: subjecting trifluoromethanesulfonic acid to reacting with thionyl chloride to produce trifluoromethanesulfonyl chloride; and dissolving aniline in a solvent, adding organic alkali such as triethylamine as an acid-binding agent, and dropwise adding trifluoromethanesulfonyl chloride to prepare N-phenyl-bis(trifluoromethanesulfonyl)imide. According to the invention, raw materials are cheap and easily available; trifluoromethanesulfonyl chloride participates in reaction, the utilization rate of groups is high, and the reaction is efficient; special devices such as low-temperature or under-pressure devices are not needed, and operation is easy; and basically no solid three wastes are generated.
Method for preparing N-phenyl-bis (perfluoroalkyl sulfonyl) imide
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Paragraph 0025-0030, (2020/01/12)
The invention relates to a method for preparing N-phenyl-bis (perfluoroalkyl sulfonyl) imide, and belongs to the technical field of preparation of perfluoroalkyl sulfonylation reagents. According to the method, perfluoroalkyl sulfonyl fluoride and aniline are used as raw materials, and N-phenyl-bis (perfluoroalkyl sulfonyl) imide is prepared under the action of a catalyst. The method disclosed bythe invention is simple in process flow, mild in reaction, good in safety, low in cost, high in yield and high in purity.