title: Stereoselective intermolecular nitroaminoxylation of terminal aromatic alkynes: trapping alkenyl radicals by TEMPO.
abstract: 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 ring's π orbital and easily trapped by TEMPO. It is noteworthy that all desired products were obtained in moderate to good yields in an (E)-configuration.
authors.affiliation: Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China.
authors.forename: Hong
authors.initials: H
authors.lastname: Yan
authors.forename: Guangwei
authors.initials: G
authors.lastname: Rong
authors.forename: Defu
authors.initials: D
authors.lastname: Liu
authors.forename: Yang
authors.initials: Y
authors.lastname: Zheng
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
authors.forename: Jincheng
authors.initials: J
authors.lastname: Mao