title: Bulky N-Phosphino-Functionalized N-Heterocyclic Carbene Ligands: Synthesis, Ruthenium Coordination Chemistry, and Ruthenium Alkylidene Complexes for Olefin Metathesis.
abstract: Ruthenium chemistry and applications in catalytic olefin metathesis based on N-phosphino-functionalized N-heterocyclic carbene ligands (NHCPs) are presented. Alkyl NHCP Ru coordination chemistry is described, and access to several potential synthetic precursors for ruthenium alkylidene complexes is outlined, incorporating both trimethylsilyl and phenyl alkylidenes. The Ru alkylidene complexes are evaluated as potential olefin metathesis catalysts and were shown to behave in a latent fashion. They displayed catalytic activity at elevated temperatures for both ring closing metathesis and ring opening metathesis polymerization.
authors.affiliation: Catalysis Research Laboratory (CaRLa) and ‡Organisch-Chemisches Institut, University of Heidelberg , Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany.
authors.forename: Christopher C
authors.initials: CC
authors.lastname: Brown
authors.affiliation: Catalysis Research Laboratory (CaRLa) and ‡Organisch-Chemisches Institut, University of Heidelberg , Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany.
authors.forename: Frank
authors.initials: F
authors.lastname: Rominger
authors.affiliation: Catalysis Research Laboratory (CaRLa) and ‡Organisch-Chemisches Institut, University of Heidelberg , Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Limbach
authors.affiliation: Catalysis Research Laboratory (CaRLa) and ‡Organisch-Chemisches Institut, University of Heidelberg , Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Hofmann