在此,我们开发了一种碱介导的、无过渡金属的分子间环氧化物开环方法,通过邻卤代 NH-亚砜亚胺的亲核攻击,然后进行分子内芳族亲核取代 (S N Ar),用于合成选定苯并[ b ] 的可分离非对映异构体。][1,4,5]氧硫氮杂 1-氧化物。C-N 和 C-O 键在一个步骤中同时形成。该策略具有良好的底物范围,需要简单的反应条件(室温)和具有成本效益的试剂,并且在获得类似生物活性骨架的苯并氧噻嗪类 1-氧化物的亚砜亚胺类似物方面表现出良好的适用性。可分离主要异构体4z ( R ,R )、次要异构体4z' ( R , S ) 和单一异构体4r ( R , R , S ) 通过 2D NMR 确认。另一方面,4q ( S , R ) 的相对构型由 2D NMR 和 X 射线晶体数据分析确定。
CuI-Mediated α-Ketoacylation of Sulfoximines under Solvent-Free Conditions
作者:Ya Zou、Zhihong Peng、Wanrong Dong、Delie An
DOI:10.1002/ejoc.201500410
日期:2015.8
The first preparation of α-ketoacyl sulfoximinesundersolvent-freeconditions using aryl ethanones and NH-sulfoximines has been discovered and a series of desired 2-oxo-2-arylacetyl sulfoximines were successfully synthesized in good to excellent yields (up to 93 %). The unprecedented protocol requires no extra solvents, bases, or additives and demonstrates outstanding compatibility with assorted functional
Transition metal-free aroylation of NH-sulfoximines with methyl arenes
作者:Ya Zou、Jing Xiao、Zhihong Peng、Wanrong Dong、Delie An
DOI:10.1039/c5cc05483d
日期:——
An iodine-catalyzed N-aroylation of NH-sulfoximines with methyl arenes was herein demonstrated without participation of external organic solvents, transition metal-catalysts or ligands.
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
Iron(II)-Catalyzed Direct Synthesis of NH Sulfoximines from Sulfoxides
作者:Hao Yu、Zhen Li、Carsten Bolm
DOI:10.1002/anie.201710498
日期:2018.1.2
Free NH‐sulfoximines were directly prepared from sulfoxides through iron catalysis by applying a readily available, shelf‐stable hydroxylamine triflic acid salt. No additional oxidant is needed, and the substrate scope is broad, including a range of heterocyclic compounds.