描述了一种大规模生产1-苯磺酰基哌啶和其他亚磺酰胺的改进方案。结果表明,在三氟甲磺酸酐介导的硫糖苷活化中,1-苯亚磺酰基吡咯烷和N,N-二乙基苯亚磺酰胺的作用类似于1-苯亚磺酰基哌啶,而且它们的结晶性较弱,因此它们可在-78°C下使用到将1-苯亚磺酰基哌啶保持在溶液中所需的-60°C。N,N-二环己基苯磺酰胺不会与三氟甲磺酸酐结合活化硫糖苷,这归因于其较大的空间体积。*致谢Jacques H. Van Boom教授。
Selective alkylation of β-ketoester enolates using O-methyl aminosulfoxonium salts; the first example of C-alkylation using sulfoxonium salt electrophiles
作者:I. Fraser Pickersgill、Allan P. Marchington、Christopher M. Rayner
DOI:10.1039/c39940002597
日期:——
The alkylation of β-ketoester enolates with O-methyl aminosulfoxonium tetraphenylborate salts is reported; good to excellent selectivity for C-vs. O-alkylation is observed, and is found to be dependent on the nature of the β-ketoester, solvent, metal counterion and aminosulfoxonium salt.
Mild and General Method for the Synthesis of Sulfonamides
作者:José García Ruano、Francisco Yuste、Alejandro Parra、Virginia Mastranzo
DOI:10.1055/s-2007-1000850
日期:2008.1
lowed by 3-chloroperoxybenzoic acid oxidation of the resulting sul- finamides provides primary, secondary, and tertiary alkane-, arene- and heteroarenesulfonamides in high yields. This constitutes a mild and facile experimental protocol that avoids the use of hazardous, unstable, or volatile reagents and does not affect the configurational stability of the amines
Direct Synthesis of Sulfinamides by the Copper-Catalyzed Electrophilic Amidation of Sulfenate Anions
作者:Qiang Dai、Junliang Zhang
DOI:10.1002/adsc.201701510
日期:2018.3.20
A method for the construction of sulfinamides via the copper‐catalyzedelectrophilic amination of sulfenate anions usingN‐benzoyloxyamines as the amination reagents. This procedure featured with the capture of in‐situ generated sulfenate anions from β‐sulfinyl esters under mild conditions, which provides an efficient strategy for the synthesis of diverse sulfinamides in moderate to good yields.
A Selectfluor-promoted oxidative reaction of disulfides and amines: access to sulfinamides
作者:Haibo Mei、Jiang Liu、Romana Pajkert、Gerd-Volker Röschenthaler、Jianlin Han
DOI:10.1039/d0ob00720j
日期:——
unprecedented transition-metal-free oxidativereaction of disulfides and amines with Selectfluor as a mild oxidant under aerobic conditions was developed. This reaction was conducted under mild conditions and tolerated a wide range of coupling partners including disulfides and amines, affording the corresponding sulfinamide products in good chemical yields. Furthermore, this reaction could be used in gram-scale
Synthetic preparation of <i>N</i>-alkyl and <i>N</i>-aryl arenesulfinamides using an arenesulfinic acid-CDI driven approach
作者:Brad J. Austermuehle、Erin S. Collins、Christopher G. Hamaker、Shawn R. Hitchcock
DOI:10.1080/00397911.2021.1981943
日期:2021.11.17
Abstract A new synthetic methodology has been developed for the synthesis of N-alkyl and N-aryl arenesulfinamides. The methodology involved reacting arenesulfinic acids (R = -Me, -H, -Cl) with 1,1’-carbonyldiimidazole (CDI) to form the reactive intermediate, an arenesulfinylimidazole. This intermediate was then reacted with both primary and secondary amines to yield the corresponding N-alkyl sulfinamides