N-heterocyclic carbene-functionalized ruthenium phosphinidenes: what a difference a twist makes.
Catalyst tuning by changing ligands is a well-established protocol in transition-metal chemistry. N-Heterocyclic carbenes (NHCs) and tertiary phosphines (R(3)P) are the ubiquitous ligand actors. Here we demonstrate that the relative sigma-donor/pi-acceptor ability of the NHC ligand itself can be influenced by a simple substituent-controlled conformational change, thereby directly impacting the reactivity of the transition-metal complex.
Aktas
Halil
H
Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands.
Slootweg
J Chris
JC
Schakel
Marius
M
Ehlers
Andreas W
AW
Lutz
Martin
M
Spek
Anthony L
AL
Lammertsma
Koop
K
D002384:Catalysis; D006571:Heterocyclic Compounds / Q000737:chemistry*; D008697:Methane / Q000031:analogs & derivatives* / Q000737:chemistry; D008968:Molecular Conformation; D010720:Phosphines / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*
D006571:Heterocyclic Compounds; D010720:Phosphines; C030011:carbene; D012428:Ruthenium; D008697:Methane