N-aminoalkyl-S-aryl-S-alkyl (or substituted alkyl) sulfoximines as
申请人:A. H. Robins Company, Incorporated
公开号:US05140026A1
公开(公告)日:1992-08-18
Compounds of this invention are represented by the formula: ##STR1## wherein Z is a C.sub.1 -C.sub.6 alkylene group and R is an alkyl or substituted alkyl group. Class III antiarrhythmic activity is determined in vitro using an electrophysiological test where prolongation of the action potential duration is an indication of activity.
Copper-Catalyzed Sulfonylation Reaction of NH-Sulfoximines with Aryldiazonium Tetrafluoroborates and Sulfur Dioxide: Formation of <i>N</i>-Sulfonyl Sulfoximines
operation, readily available substrates, and mild conditions. A tentative mechanism is proposed, which indicates that the aryldiazonium tetrafluoroborates would be radical donors under standard reaction conditions. The aryl radical produced in situ from diazoniumsalts would be trapped by SO2 to generate an arylsulfonyl radical and then undergo further transformation to generate the final N-sulfonyl
在弱碱性条件下,开发了一种高效实用的 NH-亚砜亚胺与芳基四氟硼酸盐和 DABSO 对N-磺酰基亚砜亚胺的 SO 2插入方案。这种转化具有操作简单、底物容易获得和条件温和的特点。提出了一个初步的机制,表明芳基重氮四氟硼酸盐在标准反应条件下将成为自由基供体。由重氮盐原位产生的芳基自由基将被 SO 2捕获以产生芳基磺酰基,然后进行进一步转化以产生最终的N-磺酰亚砜亚胺。
Electrochemical N-Acylation of Sulfoximine with Hydroxamic Acid
作者:Wenxiu Huang、Shoucai Wang、Mingzhe Li、Longqiang Zhao、Mengyu Peng、Chen Kang、Guangbin Jiang、Fanghua Ji
DOI:10.1021/acs.joc.3c01903
日期:2023.12.15
Despite the widespread applications of sulfoximines, green and efficient access to functionalizedsulfoximines remains a challenge. By employing an electrochemical strategy, we describe an approach for the construction of N-aroylsulfoximines, which features a broad substrate scope, mild reaction conditions, safety on a gram scale, and no need for an external oxidant and transition metal catalysts.
Electrochemical Oxidative Carbonylation of <i>N</i>H-Sulfoximines
作者:Mingzhe Li、Mengyu Peng、Wenxiu Huang、Longqiang Zhao、Shoucai Wang、Chen Kang、Guangbin Jiang、Fanghua Ji
DOI:10.1021/acs.orglett.3c02800
日期:2023.10.20
The electrochemical synthesis of N-aroylsulfoximines features the use of tetra-n-butylammonium iodide (TBAI) as the medium and a broad substrate scope, thus affording a wide range of N-aroylated sulfoximines in moderate to good yields. The advantages of this electrochemical strategy are augmented by mild reaction conditions that are external oxidant-free, ligand-free, and easy to scale up to gram scale