title: New chemical synthesis of functionalized arylzinc compounds from aromatic or thienyl bromides under mild conditions using a simple cobalt catalyst and zinc dust.
abstract: A new chemical method for the preparation of arylzinc intermediates is described in acetonitrile, on the basis of the activation of aryl bromides by low-valent cobalt species arising from the reduction of cobalt halide by zinc dust. This procedure allows for the synthesis of a variety of functionalized aryl- and thienylzinc species in good to excellent yields. The versatility and the simplicity of that original method represent an alternative to most known procedures.
authors.affiliation: Laboratoire d'Electrochimie, Catalyze et Synthèse Organique, UMR 7582 CNRS-Université Paris 12 2, rue Henry-Dunant 94320 Thiais, France.
authors.forename: Hyacinthe
authors.initials: H
authors.lastname: Fillon
authors.forename: Corinne
authors.initials: C
authors.lastname: Gosmini
authors.forename: Jacques
authors.initials: J
authors.lastname: Périchon