Transfer of Electrophilic NH Using Convenient Sources of Ammonia: Direct Synthesis of NH Sulfoximines from Sulfoxides
作者:Marina Zenzola、Robert Doran、Leonardo Degennaro、Renzo Luisi、James A. Bull
DOI:10.1002/anie.201602320
日期:2016.6.13
valuable motifs for drug discovery. The protocol employs readily available sources of nitrogen without the requirement for either preactivation or for metal catalysts. Mixing ammonium salts with diacetoxyiodobenzene directly converts sulfoxides into sulfoximines. This report describes the first example of using of ammonia sources with diacetoxyiodobenzene to generate an electrophilic nitrogen center.
Synthesis of NH‐Sulfoximines by Using Recyclable Hypervalent Iodine(III) Reagents under Aqueous Micellar Conditions
作者:Guocai Zhang、Hongsheng Tan、Weichun Chen、Hong C. Shen、Yue Lu、Changwu Zheng、Hongxi Xu
DOI:10.1002/cssc.201903430
日期:2020.3.9
The synthesis of NH-sulfoximines from sulfides has been first developed under mild conditions in an aqueous solution with surfactant TPGS-750-M as the catalyst at room temperature. In this newly developed process, a simple and convenient recycling strategy to regenerate the indispensable hypervalent iodine(III) is used. The resulting 1,2,3-trifluoro-5-iodobezene can be recovered almost quantitively
Eaton’s reagent-mediated metal-free and efficient synthesis of NH-sulfoximines
作者:Jianping Wang、Jian Zhang、Kun Miao、Hongying Yun、Hong C. Shen、Weili Zhao、Chungen Liang
DOI:10.1016/j.tetlet.2016.12.031
日期:2017.1
NH-sulfoximines can be prepared efficiently from corresponding sulfoxides in the presence of sodium azide and Eaton’s reagent. This metal-free and efficient methodology is applicable to a wide variety of functionalized sulfoxides to afford NH-sulfoximines in good to excellent yields with shorter reaction time than previously reported methods.
Sulfoximines-Assisted Rh(III)-Catalyzed C–H Activation and Intramolecular Annulation for the Synthesis of Fused Isochromeno-1,2-Benzothiazines Scaffolds under Room Temperature
作者:Bao Wang、Xu Han、Jian Li、Chunpu Li、Hong Liu
DOI:10.3390/molecules25112515
日期:——
proposed for the furnishing of highly fused isochromeno-1,2-benzothiazines scaffolds using S-phenylsulfoximides and 4-diazoisochroman-3-imine as substrates under room temperature. This method features diverse substituents and functional groups tolerance and relatively mild reaction conditions with moderate to excellent yields. Additionally, retentive configuration of sulfoximides in the conversion has
Electrochemical Oxidative C(sp<sup>3</sup>)–H/N–H Coupling of Diarylmethanes with Sulfoximines or Benzophenone Imine
作者:Xianqiang Kong、Yan Tian、Xiaohui Chen、Yiyi Chen、Wei Wang
DOI:10.1021/acs.joc.1c01647
日期:2021.10.1
Herein, we report an efficient electrochemical method for the synthesis of N-alkylated sulfoximines by electrochemical oxidative C(sp3)–H/N–Hcoupling of sulfoximines and diarylmethanes. In addition, we used the same conditions for electrochemicaldehydrogenativeamination of diarylmethanes with benzophenone imine as an aminating agent. The reactions showed good functional group tolerance and afforded