New Fischer carbene complexes of rhodium(i): preparation and 2-cyclopentenone ring synthesis by annelation to alkynes |
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| Authors: | Barluenga José Vicente Rubén López Luis A Rubio Eduardo Tomás Miguel Alvarez-Rúa Carmen |
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| Institution: | Instituto Universitario de Química Organometálica Enrique Moles-Unidad Asociada al C.S.I.C., Universidad de Oviedo, Julián Claveria, 8, 33006 Oviedo, Spain. barluenga@sauron.quimica.uniovi.es |
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| Abstract: | A new type of metal carbene complexes of group 9, specifically a cationic Fischer carbene of rhodium(I), has been synthesized from chromium carbene complexes via double transfer of carbene and CO ligands. These complexes reveal a different reactivity than other transition metal carbenes, including their chromium precursors, toward neutral and electron-poor alkynes, giving selectively polysubstituted cyclopentenones. |
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