Synthesis of a Series of Organophosphorus Esters Containing Alkylating Groups<sup>1</sup>
作者:ALLEN M. GOLD
DOI:10.1021/jo01068a082
日期:1961.10
US4360609A
申请人:——
公开号:US4360609A
公开(公告)日:1982-11-23
Cyclization of Gold Acetylides: Synthesis of Vinyl Sulfonates via Gold Vinylidene Complexes
作者:Janina Bucher、Thomas Wurm、Kumara Swamy Nalivela、Matthias Rudolph、Frank Rominger、A. Stephen K. Hashmi
DOI:10.1002/anie.201310280
日期:2014.4.7
Differently substituted terminal alkynes that bear sulfonate leaving groups at an appropriate distance were converted in the presence of a propynyl gold(I) precatalyst. After initial formation of a gold acetylide, a cyclization takes place at the β‐carbon atom of this species. Mechanistic studies support a mechanism that is related to that of dual gold‐catalyzed reactions, but for the new substrates