Abstract

(I) It has been found that an alkyl and aryl exchange between an alkylmagnesium halide and alkyl or aryl halides can take place in the case of the ordinary alkyl and aryl radicals, the reaction proceeding according to the scheme RMgX ÷ R′X ⇋ R′MgX ÷ RX. (2) The rate of exchange of radicals between the alkylmagnesium halides and alkyl or aryl halides is dependent on the solvating capacity of the solvent and polarizability of the halogen in the alkyl halides. (3) The mechanism of exchange between alkyl radicals is the same for both organomagnesium and organolithium compounds.

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