C−C Coupling between an η3-Allyl Ligand and Carbon Nucleophiles in Molybdenum and Tungsten Complexes: Structural Characterization of the Key Intermediate
Structural Divergence in the Products of the Reaction of [MoCl(η<sup>3</sup>-C<sub>3</sub>H<sub>5</sub>)(CO)<sub>2</sub>(dmpm)] with Nucleophiles
作者:Julio Pérez、Víctor Riera、Amor Rodríguez、Ramón López、Tomás L. Sordo、Santiago García-Granda、Esther García-Rodríguez、Agustín Galindo
DOI:10.1021/om020919m
日期:2003.3.1
The complex [MOCl(eta(3)-allyl)(CO)(2)(dmpm)] (dmpm = bis(dimethylphosphino)methane) (1) reacts with sodium azide and with sodium cyanide to afford the new complexes [Mo(N-3)(eta(3)-allyl)(CO)(2)(dmpm)] (2) and [Mo(CN)(eta(3)-allyl)(CO)(2)(dmpm)] (3), respectively, which were characterized spectroscopically and by X-ray diffraction. Complex 2 is a cis-dicarbonyl in which one of the P atoms of dmpm is approximately trans to a carbonyl, and the other is trans to the allyl. In contrast, 3 is a rare trans-dicarbonyl. A theoretical analysis was applied to rationalize this difference.