Organoaluminum organomagnesium

Reaction of a transition metal halide with organolithium, organomagnesium, or organoaluminum reagent. 

Organomagnesium-halide, organolithium and organoaluminum reagents are preferred to other organometaiiics. Commercially available trialkylaluminum compounds are convenient starting materials for the lower trialkylboranes. Solvents are not required, and trialkylborane can be isolated by distillation directly from the mixture ... 

When an organomagnesium componnd i-CgHj7MgC4H9 was used instead of the organoaluminum compound (triisohntylalnminnm), all other conditions being the same, the activity of the catalyst markedly decreases [51]. 

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