Nickel‐Catalyzed
<i>N</i>
‐Arylation of
<i>NH</i>
‐Sulfoximines with Aryl Halides via Paired Electrolysis
作者:Dong Liu、Zhao‐Ran Liu、Cong Ma、Ke‐Jin Jiao、Bing Sun、Lei Wei、Julien Lefranc、Simon Herbert、Tian‐Sheng Mei
DOI:10.1002/anie.202016310
日期:2021.4.19
A novel strategy for the N‐arylation of NH‐sulfoximines has been developed by merging nickel catalysis and electrochemistry (in an undivided cell), thereby providing a practical method for the construction of sulfoximine derivatives. Pairedelectrolysis is employed in this protocol, so a sacrificial anode is not required. Owing to the mild reaction conditions, excellent functional group tolerance and
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.
Synthesis of 1,2-Benzothiazines by a Rhodium-Catalyzed Domino C–H Activation/Cyclization/Elimination Process from<i>S</i>-Aryl Sulfoximines and Pyridotriazoles
作者:Woo Hyung Jeon、Jeong-Yu Son、Ji Eun Kim、Phil Ho Lee
DOI:10.1021/acs.orglett.6b01750
日期:2016.7.15
2-benzothiazines bearing pyridyl as well as carbonyl groups is developed from rhodium-catalyzed carbene insertions into aromatic C–H bonds of S-aryl sulfoximines using pyridotriazoles by denitrogenative cyclization followed by the elimination of alcohols. The present method involves the N–H/C–H activation of simple alkyl aryl sulfoximines and has the advantages of a broad substrate scope, high functional
Visible-Light-Mediated α-Ketoacylations of <i>N</i>H-Sulfoximines with <i>gem</i>-Difluoroalkenes
作者:Yongliang Tu、Peng Shi、Carsten Bolm
DOI:10.1021/acs.orglett.1c04254
日期:2022.1.28
A photochemicalapproach for the preparation of α-keto-N-acyl sulfoximines from NH sulfoximines and gem-difluoroalkenes has been developed. In the presence of NBS, the reactions proceed in air without the need of a photocatalyst or additional oxidant. Results of mechanistic studies suggest that the two oxygens in the products stem from water and dioxygen.
已经开发了一种从N H 亚砜亚胺和偕二氟烯烃制备 α-酮基-N-酰基亚砜亚胺的光化学方法。在 NBS 的存在下,反应在空气中进行,无需光催化剂或额外的氧化剂。机理研究结果表明,产品中的两种氧来源于水和分子氧。