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Optically Pure C1‑Symmetric Cyclic(alkyl)(amino)carbene Ruthenium Complexes for Asymmetric Olefin Metathesis

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posted on 13.11.2020, 14:06 by Jennifer Morvan, François Vermersch, Ziyun Zhang, Laura Falivene, Thomas Vives, Vincent Dorcet, Thierry Roisnel, Christophe Crévisy, Luigi Cavallo, Nicolas Vanthuyne, Guy Bertrand, Rodolphe Jazzar, Marc Mauduit
An expedient access to the first optically pure ruthenium complexes containing C1-symmetric cyclic (alkyl)­(amino)­carbene ligands is reported. They demonstrate excellent catalytic performances in asymmetric olefin metathesis with high enantioselectivities (up to 92% ee). Preliminary mechanistic insights provided by density functional theory models highlight the origin of the enantioselectivity.

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