Copper-Catalyzed Redox Coupling of Nitroarenes with Sodium Sulfinates
作者:Saiwen Liu、Ru Chen、Jin Zhang
DOI:10.3390/molecules24071407
日期:——
A simple copper-catalyzed redox coupling of sodiumsulfinates and nitroarenes is described. In this process, abundant and stable nitroarenes serve as both the nitrogen sources and oxidants, and sodiumsulfinates act as both reactants and reductants. A variety of aromatic sulfonamides were obtained in moderate to good yields with broad substrate scope. No external additive is employed for this kind
Palladium-catalyzed <i>N</i>-arylsulfonamide formation from arylsulfonyl hydrazides and nitroarenes
作者:Feng Zhao、Bin Li、Huawen Huang、Guo-Jun Deng
DOI:10.1039/c5ra26588f
日期:——
A palladium-catalyzed construction for N-arylsulfonamide from nitroarenes and arylsulfonylhydrazides is developed. In this protocol, abundant and stable nitroarenes serve as the nitrogen sources by in situ reduction reaction of hydrogen released from arylsulfonylhydrazides. No external oxidants or reductants are needed for this kind of transformation.
Intraligand Charge Transfer Enables Visible‐Light‐Mediated Nickel‐Catalyzed Cross‐Coupling Reactions**
作者:Cristian Cavedon、Sebastian Gisbertz、Susanne Reischauer、Sarah Vogl、Eric Sperlich、John H. Burke、Rachel F. Wallick、Stefanie Schrottke、Wei‐Hsin Hsu、Lucia Anghileri、Yannik Pfeifer、Noah Richter、Christian Teutloff、Henrike Müller‐Werkmeister、Dario Cambié、Peter H. Seeberger、Josh Vura‐Weis、Renske M. van der Veen、Arne Thomas、Bartholomäus Pieber
DOI:10.1002/anie.202211433
日期:2022.11.14
Visible-light-triggered carbon−heteroatom cross-coupling reactions without exogenous photocatalysts were realized using a nickel catalyst that was activated through intraligand chargetransfer. Ligand polymerization afforded a porous, recyclable organic polymer for heterogeneous nickel catalyzed cross-coupling reactions. The heterogeneous catalyst demonstrates stable performance in a packed-bed flow
Redox-Neutral Cross-Coupling Amination with Weak <i>N-</i>Nucleophiles: Arylation of Anilines, Sulfonamides, Sulfoximines, Carbamates, and Imines via Nickelaelectrocatalysis
A nickel-catalyzed cross-coupling amination with weak nitrogen nucleophiles is described. Arylhalides as well as aryl tosylates can be efficiently coupled with a series of weak N-nucleophiles, including anilines, sulfonamides, sulfoximines, carbamates, and imines via concerted paired electrolysis. Notably, electron-deficient anilines and sulfonamides are also suitable substrates. Interestingly, when