title: Anion-Dependent Switch in C-X Reductive Elimination Diastereoselectivity.
abstract: Reaction of a complex Pt organometallic species with electrophilic halogen sources in the presence of X-ligands changes the mechanism of reductive elimination from a concerted reductive coupling type to an SN2 type reductive elimination. In the absence of the added X-ligand the reductive elimination is stereoretentive; in its presence, the process is stereoinvertive. This selectivity hinges on the reactivity of a key five-coordinate Pt(IV) intermediate with the X-ligand.
authors.affiliation: Caudill Laboratories, Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Geier
authors.affiliation: Department of Chemistry, Faculty of Sciences, Shiraz University , Shiraz 71454, Iran.
authors.forename: Marzieh
authors.initials: M
authors.lastname: Dadkhah Aseman
authors.affiliation: Caudill Laboratories, Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States.
authors.forename: Michel R
authors.initials: MR
authors.lastname: Gagné