Dirhodium-Catalyzed Phenol and Aniline Oxidations with T-HYDRO. Substrate Scope and Mechanism of Oxidation
作者:Maxim O. Ratnikov、Linda E. Farkas、Emily C. McLaughlin、Grace Chiou、Hojae Choi、Sahar H. El-Khalafy、Michael P. Doyle
DOI:10.1021/jo1024865
日期:2011.4.15
and CuI are provided, and mechanistic comparisons are made between these catalysts that are based on diastereoselectivity (reactions with estrone), regioselectivity (reactions with p-tert-butylphenol), and chemoselectivity in the formation of 4-(tert-butyldioxy)cyclohexadienones. The data obtained are consistent with hydrogen atom abstraction by the tert-butylperoxy radical followed by radical combination