title: N-Heterocyclic carbene ligands bearing poly(ethylene glycol) chains: effect of the chain length on palladium-catalyzed coupling reactions employing aryl chlorides.
abstract: N-Heterocyclic carbenes bearing poly(ethylene glycol) chains of different lengths have been designed and employed as ligands in palladium-catalyzed coupling reactions. The catalyst system having longer chains was found to be highly efficient for Suzuki-Miyaura coupling and borylation reactions employing aryl chlorides under mild reaction conditions.
authors.affiliation: Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan. ytsuji@scl.kyoto-u.ac.jp tfuji@scl.kyoto-u.ac.jp.
authors.forename: Tetsuaki
authors.initials: T
authors.lastname: Fujihara
authors.forename: Takahiro
authors.initials: T
authors.lastname: Yoshikawa
authors.forename: Motoi
authors.initials: M
authors.lastname: Satou
authors.forename: Hidetoshi
authors.initials: H
authors.lastname: Ohta
authors.forename: Jun
authors.initials: J
authors.lastname: Terao
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Tsuji
mesh_terms: D001593:Benzyl Compounds / Q000138:chemical synthesis; D001713:Biphenyl Compounds / Q000138:chemical synthesis*; D001896:Boron Compounds / Q000138:chemical synthesis*; D002384:Catalysis; D007093:Imidazoles / Q000138:chemical synthesis; D008024:Ligands; D015394:Molecular Structure; D010165:Palladium / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D001593:Benzyl Compounds; D001713:Biphenyl Compounds; D001896:Boron Compounds; D007093:Imidazoles; D008024:Ligands; D011092:Polyethylene Glycols; D010165:Palladium