Organopalladium and organonickel intermediates derived from aryl or vinyl halides through oxidative addition to Pd0 and Ni0 complexes predominantly act as electrophiles in carbon– carbon bond-forming reactions.[1] In contrast, their nucleophilic reactivity has received much less attention; however, the development of the direct catalytic nucleophilic reaction of aryl or vinyl halides with electrophilic partners is very attractive because it omits the ...