Copper-catalyzed N-methylation/ethylation of sulfoximines
作者:Fan Teng、Jiang Cheng、Jin-Tao Yu
DOI:10.1039/c5ob01558h
日期:——
A protocol for the copper-catalyzed N-methylation of sulfoximines with di-tert-butyl peroxide (DTBP) was developed. This protocol has good functional group tolerance leading to N-methylated sulfoximines in moderate to good yields. Besides, N-ethylation of sulfoximines was achieved in the presence of bis(1,1-dimethylpropyl)peroxide as the ethylating agent under a standard procedure.
N-Alkyl sulfoximines react with arynes generated in situ under mild conditions providing o-sulfinylanilines in good yields. The transformation is characterized by a broad substrate scope and a good functional group tolerance. The structure of a reaction product was confirmed by single-crystal X-ray diffraction.
N -烷基亚砜亚胺与在温和条件下原位生成的芳烃反应,以良好的产率提供邻亚磺酰基苯胺。转化的特点是广泛的底物范围和良好的官能团耐受性。通过单晶X射线衍射确认反应产物的结构。