AbstractSulfoxides can directly be converted into N‐cyanosulfilimines using a new Burgess‐type reagent. By applying this strategy with a related reagent variant, synthetically valuable NH‐sulfoximines have been prepared from sulfoxides via N‐protected sulfilimines. The practical three‐step reaction sequence is generally high yielding and applicable to a wide range of substrates. The sulfoxide‐to‐sulfilimine conversion can also be performed under solvent‐reduced conditions in a ball mill.magnified image
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
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.
Sulfoximines-Assisted Rh(III)-Catalyzed C–H Activation and Intramolecular Annulation for the Synthesis of Fused Isochromeno-1,2-Benzothiazines Scaffolds under Room Temperature
作者:Bao Wang、Xu Han、Jian Li、Chunpu Li、Hong Liu
DOI:10.3390/molecules25112515
日期:——
proposed for the furnishing of highly fused isochromeno-1,2-benzothiazines scaffolds using S-phenylsulfoximides and 4-diazoisochroman-3-imine as substrates under room temperature. This method features diverse substituents and functional groups tolerance and relatively mild reaction conditions with moderate to excellent yields. Additionally, retentive configuration of sulfoximides in the conversion has
Synthesis of 1,2-Benzothiazines by a Rhodium-Catalyzed Domino C–H Activation/Cyclization/Elimination Process from<i>S</i>-Aryl Sulfoximines and Pyridotriazoles
作者:Woo Hyung Jeon、Jeong-Yu Son、Ji Eun Kim、Phil Ho Lee
DOI:10.1021/acs.orglett.6b01750
日期:2016.7.15
2-benzothiazines bearing pyridyl as well as carbonyl groups is developed from rhodium-catalyzed carbene insertions into aromatic C–H bonds of S-aryl sulfoximines using pyridotriazoles by denitrogenative cyclization followed by the elimination of alcohols. The present method involves the N–H/C–H activation of simple alkyl aryl sulfoximines and has the advantages of a broad substrate scope, high functional