N-Alkynylated sulfoximines have been obtained by copper-catalyzed cross-coupling reactions starting from NH-sulfoximines and bromoacetylenes in moderate to good yields. The reaction conditions are mild, and the substrate scope is wide.
Copper-catalyzed preparation of <i>N</i>-aroylated sulfoximines from methylarenes
作者:Anguo Hou、Zijian Zhao
DOI:10.1080/00397911.2017.1318444
日期:2017.7.3
ABSTRACT A copper-catalyzed methodology for the preparations of N-aroylated sulfoximines from methylarenes was herein demonstrated. The transformation proceeded with the assistance of external oxidant tert-butyl hydroperoxide, requiring for no additional solvents or ligands. The good compatibility and high efficiency of the newly developed protocol were well described by 21 examples and up to 91% yields
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
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
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.