Coupling reaction of aryl and vinylhalides with terminal alkynes using a catalyst system of copper(I) iodide - triphenylphosphine proceeds efficiently in the presence of potassium carbonate to give the corresponding unsymmetrical acetylenes in good yield.
Methods of 1,3-enyne preparation using copper (I) catalysts
申请人:Venkataraman Dhandapani
公开号:US20050255575A1
公开(公告)日:2005-11-17
A copper(I) bi-dentate ligand complex-catalyzed procedure for synthesis of 1,3-enynes. The methods and/or systems of this invention afford a variety of enynes, tolerate a variety of sensitive functional groups, and can be employed without resort to expensive palladium reagents.