Cu(OAc)<sub>2</sub>-Catalyzed N-Arylations of Sulfoximines with Aryl Boronic Acids
作者:Christian Moessner、Carsten Bolm
DOI:10.1021/ol050816a
日期:2005.6.1
[reaction: see text] A simple and mild coppersalt-catalyzed N-arylation of sulfoximines in high yields is reported. Cu(OAc)(2) activates aryl boronic acids for the reaction with NH-sulfoximines without additional base or heating. Furthermore, this new method allows the preparation of N-arylated sulfoximines, which have previously been more difficult to access.
Copper-catalyzed denitrogenative N-arylation of sulfoximines and sulfonamides with arylhydrazines
作者:Wanrong Dong、Chaoyang Liu、Xinchi Ma、Yingjun Zhang、Zhihong Peng、Dexun Xie、Delie An
DOI:10.1016/j.tet.2019.05.039
日期:2019.7
A Cu-mediated ligand-free arylation of NH-sulfoximines and sulfonamides by arylhydrazine hydrochlorides was herein demonstrated. The oxidative transformation provided an easy access towards N-aryl sulfoximines and sulfonamides in high yields (up to 93% yields) with broad functional groups tolerance (up to 36 examples). The protocol was proposed to take place through the free radical pathway based on
Transition-Metal-Free N-(o-Halo)arylation of Sulfoximines/Sulfonimidamides
作者:Ganesh Chandra Nandi、V. R. Padma Priya、C. P. Irfana Jesin
DOI:10.1055/a-1921-0875
日期:2023.4
A transition-metal-free novel route to access N-(o-halo)arylsulfoximines/sulfonimidamides is achieved by the reaction of sulfoximine/sulfonimidamide, aryne precursor, and CCl4/CBr4 in the presence of KF/18-crown-6. The in situ generated benzyne intermediate (from silyl aryl triflate) reacts with the nucleophile (sulfoximine/sulfonimidamide) and halide source (CCl4/CBr4) to yield the product in moderate
Sulfoximines, sulfondiimides and sulfonimidamides are fascinating but not yet fully explored variants of the common sulfone or sulfonamide motif. In this study, we report the physicochemical and in vitro properties of sulfoximines and compare them with related analogs and isosteres. Furthermore, we present a matched molecular pair analysis of compounds from drug discovery projects within Boehringer Ingelheim. We demonstrate that the sulfoximine moiety is a chemically stable, comparatively polar and weakly basic functional group, often leading to favorable aqueous solubility, permeability and metabolic stability. Moreover, their additional vectors at nitrogen enable simple chemical modifications and thus facilitate exploration and fine-tuning of the molecular properties. We conclude that sulfoximines and their congeners do not exhibit any intrinsic flaw but significantly enrich the toolbox of medicinal chemists. (C) 2016 Elsevier Masson SAS. All rights reserved.
Iron-Catalyzed CN Cross-Coupling of Sulfoximines with Aryl Iodides
作者:Arkaitz Correa、Carsten Bolm
DOI:10.1002/adsc.200700508
日期:2008.2.22
An inexpensive and experimentally simple, iron-catalyzed N-arylation reaction of NH-sulfoximines with aryliodides is reported. This complementary method to the known palladium- and copper-catalyzed ones features the use of a combination of environmentally friendly FeCl3 and N,N′-dimethylethylenediamine (DMEDA) as catalytic system and allows the efficient preparation of various N-arylsulfoximines in