A new approach to ferrocene derived alkenes via coppercatalyzed olefination

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A new approach to ferrocenyl haloalkenes and bis-alkenes was elaborated. The key procedure involves copper catalyzed olefination of N-unsubstituted hydrazones, obtained from ferrocene-containing carbonyl compounds and hydrazine, with polyhaloalkanes. The procedure is simple, cheap and could be applied for the utilization of environmentally harmful polyhalocarbons. The cyclic voltammetry study of the representative examples of the synthesized ferrocenyl alkenes shows the strong dependence of the cathodic behavior on the amount of vinyl groups: while for the monoalkene containing molecules no reduction is seen, the divinyl products are reduced in several steps.




Muzalevskiy, V. M., Shastin, A. V., Demidovich, A. D., Shikhaliev, N. G., Magerramov, A. M., Khrustalev, V. N., … Nenajdenko, V. G. (2015). A new approach to ferrocene derived alkenes via coppercatalyzed olefination. Beilstein Journal of Organic Chemistry, 11, 2072–2078. https://doi.org/10.3762/bjoc.11.223

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