Cycloadditions of Nitrile Oxides to the Highly ReactiveN-Acyl-2-oxa-3-azanorborn-5-enes Afford Versatile Cycloadducts and a Convenient Entry to Highly Functionalized Derivatives
N-Acyl-2-oxa-3-azanorborn-5-enes are highly reactive dipolarophiles in cycloadditions with nitrileoxides. The cycloadducts can be easily elaborated to various functionalized structures that are not directly accessible by 1,3-dipolar cycloadditions.
Copper-Catalyzed Oxidative Oxyamination/Diamination of Internal Alkenes of Unsaturated Oximes with Simple Amines
作者:Rui-Hua Liu、Dian Wei、Bing Han、Wei Yu
DOI:10.1021/acscatal.6b02065
日期:2016.10.7
A convenient and versatile oxidative intra/intermolecular oxyamination and diamination of unactivated alkenes has been developed through copper-catalyzed radical reactions of β,γ- and γ,δ-unsaturated ketoximes with electron-rich aryl and aliphatic amines. These reactions were carried out by employing di-tert-butyl peroxide (DTBP) or air as the terminal oxidant, and a series of useful nitrogen-containing