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.
Copper-Catalyzed Oxidative α-Ketoacylations of Sulfoximines with Aryl Methyl Ketones and Dioxygen as Terminal Oxidant
作者:Carsten Bolm、Hanchao Cheng
DOI:10.1055/s-0035-1560989
日期:——
An efficient copper-catalyzed C−H/N−H bond functionalization for the synthesis of α-keto-N-acyl sulfoximines from aryl methyl ketones and NH-sulfoximines with molecular oxygen as terminal oxidant has been developed.
Visible-Light-Mediated α-Ketoacylations of <i>N</i>H-Sulfoximines with <i>gem</i>-Difluoroalkenes
作者:Yongliang Tu、Peng Shi、Carsten Bolm
DOI:10.1021/acs.orglett.1c04254
日期:2022.1.28
A photochemicalapproach for the preparation of α-keto-N-acyl sulfoximines from NH sulfoximines and gem-difluoroalkenes has been developed. In the presence of NBS, the reactions proceed in air without the need of a photocatalyst or additional oxidant. Results of mechanistic studies suggest that the two oxygens in the products stem from water and dioxygen.
已经开发了一种从N H 亚砜亚胺和偕二氟烯烃制备 α-酮基-N-酰基亚砜亚胺的光化学方法。在 NBS 的存在下,反应在空气中进行,无需光催化剂或额外的氧化剂。机理研究结果表明,产品中的两种氧来源于水和分子氧。
Use of Hypervalent Iodine Reagents in Visible Light-Promoted α-Ketoacylations of Sulfoximines with Aryl Alkynes
In visible light, sulfoximidoyl-containing hypervalent iodine reagents react with aryl alkynes to give N-α-ketoacylated sulfoximines in good to high yields. The process is metal- and base-free, providing the diketonic products without the use of highly oxygenated reagents such as peroxides. Results from mechanistic investigations suggest the intermediacy of radicals and reveal the importance of molecular