Mizutani K1, Shinokubo H, Oshima K.
Org Lett. 2003 Oct 16;5(21):3959-61.[reaction: see text] A combination of CoCl(2) and 1,6-bis(diphenylphosphino)hexane catalyzes a novel three-component coupling reaction of alkyl bromides, 1,3-dienes, and silylmethylmagnesium chloride, yielding homoallylsilanes in good to excellent yields. The reaction involves a radical species from alkyl halides.