Substitution at carbon by organomagnesium compounds

They also reported transition metal-catalyzed regioselective substitution reac- 

For example, reaction of n-decyl bromide with -butylmagnesium chloride 

The most generally applicable catalysts are diphosphine complexes of nickel(ll) halides, notably dichloro[l,3-bis(diphenylphosphino)propane]nickel(II), NiCl2 (dppp) , and to a lesser extent analogous palladium(ll) complexes. Many examples are listed in reviews [42-44], 

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