The Vinylidene/Acyl Coupling at Rhenium Centers

Abstract

Abstract The reaction of [Re(CO 3 )L 2 Cl] (L = (MeI) 3 P, 1a ; L = (i‐PrO) 3 P, 1b ; L = (PhO) 3 P, 1c ; L = Me 3 P, 1d ; L = Et 3 P, 1e ) with t ‐BuLi and phenylacetylene in THF affords bis (phosphorus donor) (dicarbonyl) {η 2 (C,O)‐[( E )‐4,4‐dimethyl‐3‐oxo‐1‐phenylpent‐1‐3n‐2‐yl]}rhenium (L = (MeO) 3 P, 2b ; L = (PhO) 3 P, 2c ; L = Me 3 P, 2d ; L = Et 3 P, 2c ). Compounds 2b and 2d were characterized by X‐ray structure analysis.