Abstract

The reactions of magnesium-cyclopentane with styrene and of 2,4-diphenylmagnesium-cyclopentane with ethylene in the presence of catalytic amounts of Cp2-ZrCl2 leading to the formation of 2-phenylmagnesium-cyclopentane and 2,4-di-phenylmagnesium-cycloheptane, were studied for the first time. It was found that zirconocyclopentanes, are intermediates in this reaction, which are formed both from magnesium-cycloalkanes and from α-olefins and Cp2ZrCl2. A possible mechanism of the reactions studied has been proposed.

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