title: Surfactant-free single-nano-sized colloidal Cu nanoparticles for use as an active catalyst in Ullmann-coupling reaction.
abstract: Surfactant-free, single-nano-sized copper nanoparticles (Cu NPs) (size: about 2 nm) were prepared by the DMF reduction method. The Cu NPs showed high catalytic activity (with a turnover number (TON) of up to 2.2 × 10(4)) in Ullmann-type cross-coupling of aryl halides with phenols under ligand-free conditions.
authors.affiliation: Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan.
authors.forename: Yuto
authors.initials: Y
authors.lastname: Isomura
authors.forename: Takashi
authors.initials: T
authors.lastname: Narushima
authors.forename: Hideya
authors.initials: H
authors.lastname: Kawasaki
authors.forename: Tetsu
authors.initials: T
authors.lastname: Yonezawa
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Obora