gem-Dihalocyclopropane formation by iron/copper activation of tetrahalomethanes in the presence of nucleophilic olefins. Evidence for a carbene pathway |
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| Authors: | Eric Léonel Michael Lejaye Sylvain Oudeyer Jean Paul Paugam Jean-Yves Nédélec |
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| Institution: | Laboratoire d’Electrochimie, Catalyse et Synthèse Organique, UMR 7582, CNRS-Université Paris XII, 2, Rue Henri Dunant, B.P. 28, F-94320 Thiais, France |
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| Abstract: | The activation of CBr4 and CCl4 by a bimetallic iron/copper couple in acetonitrile is a new, inexpensive, nontoxic and efficient procedure for gem-dibromo- and gem-dichloromethylenation of nucleophilic alkenes. This new route to gem-dihalocyclopropanes involves dihalocarbene species. |
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| Keywords: | Dihalocarbenes Radicals Cyclopropanes Bimetallic reduction |
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