ACTIVATION OF REDUCING AGENTS. SODIUM HYDRIDE CONTAINING COMPLEX REDUCING AGENTS XIX. HOMO COUPLING OF ARYL AND VINYL HALIDES PROMOTED BY LIGAND MODIFIED NiCRA (NaH-RONa-Ni(OAc)2)

Article abstract of DOI:10.1016/0022-328X(84)85152-9

The preparation of NiCRA (NaH-t-AmONa-Ni(OAc)2) in the presence of 2,2'-bipyridine (bpy) leads to a new reagent (termed NiCRA-bpy) which is shown to be one of the most efficient Ni based reagents reported so far for the homocoupling of aryl and vinyl halides (including chlorides).The homo coupling of cis- and trans-β-bromostyrenes is shown to be stereospecific.