Stereoselective Intermolecular Nitroaminoxylation of Terminal Aromatic Alkynes: Trapping Alkenyl Radicals by TEMPO
摘要:
The vinyl radical is one of the most unstable organic radicals. It is demonstrated that a nitro radical attacks phenylacetylene and makes the phenyl ring deconjugated with a double bond so that the resulting vinyl radical may be stabilized by delocalization to the phenyl rings p orbital and easily trapped by TEMPO. It is noteworthy that all desired products were obtained in moderate to good yields in an (E)-configuration.
Facile synthesis of (E)-β-nitroolefinic alkoxyamines via silver-catalyzed decarboxylative nitroaminoxylation of phenylpropiolic acids
作者:Hong Yan、Jincheng Mao、Guangwei Rong、Defu Liu、Yang Zheng、Yue He
DOI:10.1039/c5gc00302d
日期:——
A novel silver-catalyzed decarboxylative nitroaminoxylation reaction of phenylpropiolic acids is described, leading to (E)-β-nitroolefinic alkoxyamines.