Sulfoximines: A Reusable Directing Group for Chemo- and Regioselective ortho CH Oxidation of Arenes
作者:M. Ramu Yadav、Raja K. Rit、Akhila K. Sahoo
DOI:10.1002/chem.201200092
日期:2012.4.27
Sulfoximinesdirect: A new protocol for the chemo‐ and regioselectiveorthoCH acetoxylation of arenes in N‐benzoylated sulfoximines is reported. The sulfoximinedirectinggroup is easily detached from the CHoxidation product through acid‐promoted hydrolysis, isolated, and reused (see scheme). The meta‐substituted phenols are synthesized following this strategy and the stereointegrity of the sulfoximine
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.
carbonylation of aryl halides followed by nucleophilic attack of NH-sulfoximines. This reaction tolerates a range of aryl iodides and sulfoximines to provide the N-aroyl sulfoximines in good to excellent yields. Less reactive arylbromides also underwent sulfoximinocarbonylation and afforded the products. This methodology is free from phosphine ligands. The heterogeneous Pd/Ccatalyst was successfully
Palladium nanoparticles catalyzed aroylation of NH-sulfoximines with aryl iodides
作者:Nidhi Sharma、Govindasamy Sekar
DOI:10.1039/c6ra05334c
日期:——
A novel approach towards aroylation of NH-sulfoximines with aryl iodides in the presence of carbon monoxide using Pd nanoparticles stabilized by a binaphthyl backbone (Pd-BNP) has been developed.
Palladium catalyzed aroylation of NH-sulfoximines with aryl halides using chloroform as the CO precursor
作者:Sheng-rong Guo、Pailla Santhosh Kumar、Yan-qin Yuan、Ming-hua Yang
DOI:10.1016/j.tetlet.2017.05.088
日期:2017.7
A palladium-catalyzed aroylation of NH-sulfoximines for the efficient synthesis of N-aroyl sulfoximines from aryl halides and chloroform has been developed. The mild reaction conditions (temperature, catalyst loading) and the use of a CO surrogate render this transformation a useful method for the synthesis of N-aroyl sulfoximines from available feedstock.