New efficient preparation of arylzinc compounds from aryl halides using cobalt catalysis and sacrificial anode process
Electroreduction of aryl-chlorides or -bromides in an electrochemical cell fitted with a sacrificial zinc anode and in the presence of cobalt halide associated with pyridine as ligand in DMF or acetonitrile as solvent affords the corresponding organozinc species in good yields.
Gosmini
C
Laboratoire d'Electrochimie, Catalyse et Synthese Organique, UMR 7582 CNRS-Universite Paris 12, 2 rue Henry-Dunant, 94320 Thiais, France.
Rollin
Y
Nedelec
JY
Perichon
J