Arenesulfonyl Fluoride Synthesis via Copper-Catalyzed Fluorosulfonylation of Arenediazonium Salts
作者:Yongan Liu、Donghai Yu、Yong Guo、Ji-Chang Xiao、Qing-Yun Chen、Chao Liu
DOI:10.1021/acs.orglett.0c00484
日期:2020.3.20
We report herein a general and practical copper-catalyzed fluorosulfonylation reaction of a wide range of abundant arenediazonium salts to smoothly prepare various arenesulfonylfluorides using the 1,4-diazabicyclo[2.2.2]octane-bis(sulfur dioxide) adduct as a convenient sulfonyl source in combination with KHF2 as an ideal fluorine source and without the need for additional oxidants. Interestingly,
Sulfonyl Fluoride Synthesis through Electrochemical Oxidative Coupling of Thiols and Potassium Fluoride
作者:Gabriele Laudadio、Aloisio de A. Bartolomeu、Lucas M. H. M. Verwijlen、Yiran Cao、Kleber T. de Oliveira、Timothy Noël
DOI:10.1021/jacs.9b06126
日期:2019.7.31
Sulfonylfluorides are valuable synthetic motifs for a variety of applications, among which sulfur(VI) fluoride exchange-based “click chemistry” is currently the most prominent. Consequently, the development of novel and efficient synthetic methods to access these functional groups is of great interest. Herein, we report a mild and environmentally benign electrochemical approach to prepare sulfonyl
作者:Andrei A. Gakh、Sergei V. Romaniko、Bogdan I. Ugrak、Albert A. Fainzilberg
DOI:10.1016/s0040-4020(01)89746-5
日期:1991.8
Cesiumfluoroxysulfate was proved to be a N-fluorinating agent for some nitrogen compounds. Yields of products obtained mainly monofluoro-derivatives, depend on structures of initial nitrogen compounds. The ability of cesiumfluoroxysulfate for N-fluorination is much inferior to that of elemental fluorine and fluoromethylhypofluoride (CF3OF) but superior to that of perchlorylfluoride (FClO3).
De‐risking S‐F bond formation:A gas cylinder‐free strategy to access S(IV) and S(VI) fluorinated compounds.
作者:Reza Kordnezhadian、Armir Zogu、Carlotta Borgarelli、Ruben Van Lommel、Joachim Demaerel、Wim M. De Borggraeve、Ermal Ismalaj
DOI:10.1002/chem.202300361
日期:——
Herein we report the oxidative halogenation of thiols via the ex situ generation of chlorine by employing calcium hypochorite as solid bench-stable precursor. This approach enables the synthesis of three distinct classes of compounds (R-SF3, RSO2F and RSF4Cl). Metastable R-SF4Cl intermediates are further postfunctionalized to access structures of higher complexity, and computational analysis elucidate
在此,我们报道了使用次氯酸钙作为固体工作台稳定前体,通过异位产生氯来氧化卤化硫醇。这种方法能够合成三种不同类别的化合物(R-SF 3、RSO 2 F 和 RSF 4 Cl)。亚稳态 R-SF 4 Cl 中间体进一步后官能化以获得更复杂的结构,计算分析阐明了导致某些杂芳族 SF 4 Cl 结构顺式选择性的潜在途径。