Miscellaneous preparations from other organomagnesium compounds

4 Miscellaneous preparations from other organomagnesium compounds 

Reactions between organomagnesium compounds and sulfoxides can be complex (see Sections 8.3.3, 13.2), but in favourable cases the equilibrium 

This type of reaction has been used to prepare a di-Grignard reagent, though in this case a side-reaction competes [68]  

Transmetallation reactions of Grignard reagents with other organometallic compounds are rare. An example is shown here [70] other transmetallations have been briefly reported [71]. 

Brandsma, Preparative Acetylenic Chemistry, 2nd edn, pp. 29-30. Elsevier, Amsterdam, 1988. 

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