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.
Meta Selective C-H Borylation of Sterically Biased and Unbiased Substrates Directed by Electrostatic Interaction
Chaturvedi, Jagriti,Haldar, Chabush,Bisht, Ranjana,Pandey, Gajanan,Chattopadhyay, Buddhadeb
supporting information, p. 7604 - 7611 (2021/05/26)
An electrostatically directed meta borylation of sterically biased and unbiased substrates is described. The borylation follows an electrostatic interaction between the partially positive and negative charges between the ligand and substrate. With this strategy, it has been demonstrated that a wide number of challenging substrates, especially 4-substituted substrates, can selectively be borylated at the meta position. Moreover, unsubstituted substrates also displayed excellent meta selectivity. The reaction employs a bench-stable ligand and proceeds at a milder temperature, precluding the need to synthesize a bulky and sophisticated ligand/template.
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.