By using formamides as amine sources, a novel and efficient KO-t-Bu mediated amination of sodium sulfinates has been developed. The reaction utilizes readily available starting materials under metal-free conditions, thus providing an alternative and attractive route to sulfonamides.
Debenzylative Sulfonylation of Tertiary Benzylamines Promoted by Visible Light
作者:Ying Fu、Qing‐Kui Wu、Zhengyin Du
DOI:10.1002/ejoc.202100144
日期:2021.3.26
A visiblelight photocatalytic debenzylative sulfonylation of tertiary benzylamines is described, affording a series of sulfonamides in high yields. This operationally simple transformation showed high functional group compatibility and wide substrate scope.
with N, N-dimethylamino group and then reacted with the corresponding sulfonyl chlorides to synthesize N, N-dimethylarylsulfonamides. We herein designed and controlled synthesis of N, N-dimethylarylsulfonamide derivatives, and first reported the results of the nematicidal activity of 15 title compounds 3a-o against Meloidogyne incongnita in vitro, respectively. Among all of the title derivatives, compounds
Ionization constants of all seven positional isomers of quinolinesulfonamides and quinoline-N,N-dimethylsulfonamides
作者:Maria J. Maślankiewicz、Krzysztof Marciniec、Andrzej Maślankiewicz、Maria Jaworska
DOI:10.1016/j.molstruc.2012.10.024
日期:2013.2
isomeric sulfamoylquinolines 2a–8a and N,N-dimethylsulfamoylquinolines 2b–8b were determined by means of a UV–VIS spectroscopic method that uses absorbance diagrams, at constant ionic strength (0.15 M). For sulfamoylquinolines 2a–8a two pKa values – for basic function (Nring: −0.31 to 3.36) and for acid function (SO2NH2 group: 8.89–10.34) but only one in the case of N,N-dimethylsulfamoylquinolines 2b–8b