1162668-12-3Relevant articles and documents
A New Portal to SuFEx Click Chemistry: A Stable Fluorosulfuryl Imidazolium Salt Emerging as an “F?SO2+” Donor of Unprecedented Reactivity, Selectivity, and Scope
Guo, Taijie,Meng, Genyi,Zhan, Xiongjie,Yang, Qian,Ma, Tiancheng,Xu, Long,Sharpless, K. Barry,Dong, Jiajia
supporting information, p. 2605 - 2610 (2018/02/06)
Sulfuryl fluoride, SO2F2, has been found to derivatize phenols in all kinds of environments, even those in highly functional molecules. We now report that a solid fluorosulfuryl imidazolium triflate salt delivers the same “F?SO2+” fragment to Nu?H acceptor groups in the substrates. However, this triflate salt is a far more reactive fluorosulfurylating agent than SO2F2 and displays selectivity preferences of its own. Moreover, the new azolium triflate reagent reacts once with primary amines and anilines before the reaction stops. On the other hand, with triethylamine and two equivalents of the “F?SO2+” donor present, it proceeds on to the bis(fluorosulfuryl)imides in good yield—two important conversions that we have never seen with sulfuryl fluoride as the electrophile.
Difluoro-λ3-bromane-induced hofmann rearrangement of sulfonamides: Synthesis of sulfamoyl fluorides
Ochiai, Masahito,Okada, Takuya,Tada, Norihiro,Yoshimura, Akira,Miyamoto, Kazunori,Shiro, Motoo
supporting information; experimental part, p. 8392 - 8393 (2009/10/23)
(Chemical Equation Presented) We report the first example of Hofmann rearrangement of primary arenesulfonamides, which relies on the use of p-trifluoromethylphenyl(difluoro)-λ3-bromane and affords N-arylsulfamoyl fluorides selectively at room t
