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Article Dans Une Revue Catalysis Science & Technology Année : 2023

Cyclic(alkyl)(amino)carbene ruthenium complexes for Z-stereoselective (asymmetric) olefin metathesis

Thomas Vives

Résumé

The first Z-stereoselective catechodithiolate ruthenium complexes containing cyclic(alkyl)(amino)carbene ligands are reported. Isolated in nearly quantitative yields or in situ generated, these catalysts demonstrated remarkable Z selectivity (Z/E ratio up to >98/2) in ring-opening metathesis polymerization (ROMP), ring-opening-cross metathesis (ROCM) and cross-metathesis (CM). Thanks to the efficient chiral HPLC resolution of racemic CAAC-complex precursors, optically pure dithiolated complexes were also synthesized allowing to produce enantioenriched Z-ROCM products in >99/1 Z/E with good levels of enantioselectivity.

Domaines

Chimie
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Dates et versions

hal-03885100 , version 1 (14-12-2022)

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Jennifer Morvan, François Vermersch, Jan Lorkowski, Jakub Talcik, Thomas Vives, et al.. Cyclic(alkyl)(amino)carbene ruthenium complexes for Z-stereoselective (asymmetric) olefin metathesis. Catalysis Science & Technology, 2023, 13, pp.381-388. ⟨10.1039/d2cy01795d⟩. ⟨hal-03885100⟩
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