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Cycloalkyl–based Unsymmetrical Unsaturated (U2)-NHC ligands: flexibility and dissymmetry in ruthenium-catalysed olefin metathesis Mathieu Rouen, Etienne Borré, Laura Falivene, lo�c Toupet, Mikael Berthod, Luigi Cavallo, Helene Olivier-Bourbigou and Marc Mauduit
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http://dx.doi.org/10.1039/C4DT00142G 