title: Cp(2)Ni-KOt-Bu-BEt(3) (or PPh(3)) catalyst system for direct C-H arylation of benzene, naphthalene, and pyridine.
abstract: Ni-catalyzed direct C-H arylation of benzene and naphthalene using aryl halides was investigated. For the first time, the arylation was successfully catalyzed by Cp(2)Ni (5 mol %) in the presence of KOt-Bu and BEt(3). This Ni catalyst system was also applied to direct C-H arylation of pyridine, an electron-deficient heteroarene; PPh(3) was used instead of BEt(3) in this case.
authors.affiliation: Sagami Chemical Research Center, 2743-1 Hayakawa, Ayase, Kanagawa 252-1193, Japan.
authors.forename: Osamu
authors.initials: O
authors.lastname: Kobayashi
authors.forename: Daisuke
authors.initials: D
authors.lastname: Uraguchi
authors.forename: Tetsu
authors.initials: T
authors.lastname: Yamakawa