title: Carbon-halide oxidative addition and carbon-carbon reductive elimination at a (PNP)Rh center.
abstract: An unsaturated (PNP)Rh fragment can be generated by means of C-C reductive elimination from (PNP)Rh(Me)(Ar) or (PNP)Rh(Ar)(Ar). This fragment undergoes carbon-halogen oxidative addition with aryl chlorides, bromides, and iodides at room temperature. The C-H oxidative addition products in reactions with haloarenes are not observed, and evidence is presented that carbon-halogen oxidative addition is thermodynamically preferred. C-C reductive elimination from (PNP)Rh(Me)(Ar) and (PNP)Rh(Ar)(Ar) proceeds near quantitatively as a clean, first-order reaction.
authors.affiliation: Department of Chemistry, Brandeis University, MS015, 415 South Street, Waltham, MA 02454, USA.
authors.forename: Sylvain
authors.initials: S
authors.lastname: Gatard
authors.forename: Remle
authors.initials: R
authors.lastname: Celenligil-Cetin
authors.forename: Chengyun
authors.initials: C
authors.lastname: Guo
authors.forename: Bruce M
authors.initials: BM
authors.lastname: Foxman
authors.forename: Oleg V
authors.initials: OV
authors.lastname: Ozerov