title: Substituted 2,2'-bipyridines by nickel-catalysis: 4,4'-di-tert-butyl-2,2'-bipyridine.
abstract: A simple, ligand-free synthesis of the important bipyridyl ligand 4,4'-di-tert-butyl-2,2'-bipyridine is presented. 5,5'-bis(trifluoromethyl)-2,2'-bipyridine is also synthesized by the same protocol. The syntheses efficiently couple the parent 2-chlorpyridies by a nickel-catalyzed dimerization with manganese powder as the terminal reductant.
authors.affiliation: Department of Chemistry, University of Rochester, Rochester, NY 14627-0216 USA.
authors.forename: Joseph A
authors.initials: JA
authors.lastname: Buonomo
authors.affiliation: Department of Chemistry, University of Rochester, Rochester, NY 14627-0216 USA.
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Everson
authors.affiliation: Department of Chemistry, University of Rochester, Rochester, NY 14627-0216 USA.
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Weix
keywords: 4,4′-di-tert-butyl-2,2′-bipyridine; catalysis; nickel; pyridine; reductive