New platinum(0) complexes of the general formula [(NHC)Pt(dvtms)] (dvtms=1,3‐divinyltetramethyldisiloxane) containing bulkyN‐heterocycliccarbene (NHC) ligands were prepared, characterized, and found to be catalytically active in the fully regio‐ and stereoselective dimerization of terminal acetylenes.
Controlling the behavior of terminalalkynes in metal-catalyzed intermolecular tandem reactions is a formidable challenge despite the potential advantage offered by these strategies in modern synthesis. Herein, we describe that a nickel catalyst enables a tandem process involving the rapid dimerization of terminalalkynes into 1,3-enynes and the cycloaddition of these intermediates with an azetidinone