title: N-heterocyclic carbene ligands in copper-catalyzed addition of diethylzinc to N-sulfonylimines.
abstract: N-Heterocyclic carbenes (NHCs) were generated in-situ from imidazolium and imidazolinium salts by deprotonation of C-2 hydrogen and were used as ligands in the copper-catalyzed addition of diethylzinc to N-sulfonylimines. The copper-NHC complexes were shown to possess an efficient ligand acceleration effect (LAE).
authors.affiliation: School of Pharmaceutical Sciences, University of Shizuoka, Shizouka, Japan.
authors.forename: Abu Bakar
authors.initials: AB
authors.lastname: Md
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Suzuki
authors.forename: Masayuki
authors.initials: M
authors.lastname: Sato
mesh_terms: D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D006571:Heterocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D006838:Hydrocarbons / Q000138:chemical synthesis / Q000737:chemistry; D007093:Imidazoles / Q000138:chemical synthesis* / Q000737:chemistry*; D007097:Imines / Q000737:chemistry*; D008024:Ligands; D008697:Methane / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D013450:Sulfones / Q000737:chemistry*
chemical_list: D006571:Heterocyclic Compounds; D006838:Hydrocarbons; D007093:Imidazoles; D007097:Imines; D008024:Ligands; C482356:N-sulfonylimine; D009942:Organometallic Compounds; D013450:Sulfones; C030011:carbene; D003300:Copper; D008697:Methane; C454811:diethylzinc