title: Structure and Reactivity of [(L•Pd)n•(1,5-cyclooctadiene)] (n=1-2) Complexes Bearing Biaryl Phosphine Ligands.
abstract: The structure of the stable Pd(0) precatalyst [(1,5-cyclooctadiene)(L•Pd)2] (L = AdBrettPhos) for the Pd-catalyzed fluorination of aryl triflates has been further studied by solid state NMR and X-ray cystrallography of the analogous N-phenylmaleimide complex. The reactivity of this complex with CDCl3to form a dearomatized complex is also presented. In addition, studies suggest that related bulky biaryl phosphine ligands form similar complexes, although the smaller ligand BrettPhos forms a monomeric [(1,5-cyclooctadiene)(L•Pd)] species instead.
authors.affiliation: Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States.
authors.forename: Hong Geun
authors.initials: HG
authors.lastname: Lee
authors.affiliation: Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States.
authors.forename: Phillip J
authors.initials: PJ
authors.lastname: Milner
authors.affiliation: Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States.
authors.forename: Michael T
authors.initials: MT
authors.lastname: Colvin
authors.affiliation: Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States.
authors.forename: Loren
authors.initials: L
authors.lastname: Andreas
authors.affiliation: Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States.
authors.forename: Stephen L
authors.initials: SL
authors.lastname: Buchwald
keywords: Pd(0) complex; biaryl phosphine; oxidative addition; precatalyst