title: Platinum(II)-phosphole complexes: synthesis and evaluation as enyne cycloisomerisation catalysts.
abstract: A series of platinum(II)-monophosphole complexes has been synthesized and used in enyne cycloisomerisations in order to study the effect of the ligand on the catalytic activity and selectivity. Reactions were performed on various N- or C-tethered 1,6-enynes and in the absence or in the presence of nucleophiles. For the most efficient cationic Pt(II)-complexes, it was also evidenced that the counterion and/or the solvent could have an influence on both the efficiency and the selectivity in the competition between the 5-exo-dig and the 6-endo-dig processes.
authors.affiliation: CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France.
authors.forename: Kévin
authors.initials: K
authors.lastname: Fourmy
authors.forename: Sonia
authors.initials: S
authors.lastname: Mallet-Ladeira
authors.forename: Odile
authors.initials: O
authors.lastname: Dechy-Cabaret
authors.forename: Maryse
authors.initials: M
authors.lastname: Gouygou