optimized reaction conditions are well suited to the task of N-vinylation of sulfoximine with trans-2-phenylvinylboronic acid. N-Arylation of sulfoximines with different arylboronic acids, including sterically hindered boronic acids, is achieved using copper(I) iodide and 4-DMAP at room temperature. Moreover, N-arylation of biologically relevant l-methionine sulfoximine is demonstrated for the first time
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.
Microwave-assisted solvent- and ligand-free copper-catalysed cross-coupling between halopyridines and nitrogen nucleophiles
作者:Zhen-Jiang Liu、Jean-Pierre Vors、Ernst R. F. Gesing、Carsten Bolm
DOI:10.1039/c0gc00296h
日期:——
N-Heteroarylated products are obtained in good yields by microwave-assisted solvent- and ligand-free copper-catalysed amination of halopyridines with nitrogennucleophiles.
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