Ambivalent Role of Rotamers in Cyclic(alkyl)(amino)carbene Ruthenium Complexes for Enantioselective Ring-Opening Cross-Metathesis

Autor: Jennifer Morvan, François Vermersch, Ziyun Zhang, Thomas Vives, Thierry Roisnel, Christophe Crévisy, Laura Falivene, Luigi Cavallo, Nicolas Vanthuyne, Guy Bertrand, Rodolphe Jazzar, Marc Mauduit

Publikováno v: Organometallics
Organometallics, 2023, 42 (6), pp.495-504. ⟨10.1021/acs.organomet.3c00054⟩

International audience; The development of highly efficient enantioselective olefin metathesis catalysts is a significant challenge. Using optically pure chiral cyclic (alkyl)(amino)carbene (ChiCAAC) ligands combined with preliminary mechanistic insi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e075787c2232a16542d91be6220defa
https://doi.org/10.1021/acs.organomet.3c00054

Chiral oxazolidines acting as transient hydroxyalkyl-functionalized N-heterocyclic carbenes: an efficient route to air stable copper and gold complexes for asymmetric catalysis

Autor: Delphine Pichon-Barré, Ziyun Zhang, Aël Cador, Thomas Vives, Thierry Roisnel, Olivier Baslé, Lucie Jarrige, Luigi Cavallo, Laura Falivene, Marc Mauduit

Publikováno v: Chemical Science
Chemical Science, 2022, 13 (30), pp.8773-8780. ⟨10.1039/d2sc02908a⟩

International audience; Optically pure oxazolidines were synthesized in nearly quantitative yields from chiral hydroxyalkyl-functionalized imidazolinium salts. Acting as transient chiral diamino N-heterocyclic carbenes (NHCs), these oxazolidines allo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d06a3294af1b648484530213c7c467f0
https://doi.org/10.1039/d2sc02908a

Mechanistic Insights into Ni(II)-Catalyzed Nonalternating Ethylene-Carbon Monoxide Copolymerization

Autor: Maria Voccia, Lukas Odenwald, Maximilian Baur, Fei Lin, Laura Falivene, Stefan Mecking, Lucia Caporaso

Polyethylene materials with in-chain-incorporated keto groups were recently enabled by nonalternating copolymerization of ethylene with carbon monoxide in the presence of Ni(II) phosphinephenolate catalysts. We elucidate the mechanism of this long-so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5802d1864711579ed8dd40c8625c3196

The Impact of Charge in a Ni(II) Polymerization Catalyst

Autor: Eva Schiebel, Stefan Mecking, Lucia Caporaso, Maria Voccia, Laura Falivene

Publikováno v: ACS Catalysis. 11:5358-5368

A direct comparison between neutral active sites and their corresponding cationic analogues is enabled by protonation of neutral bis(imino)phenoxy complexes, active for ethylene polymerization. The...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d9aed5e3baad468995d1d11c0252a85
https://doi.org/10.1021/acscatal.1c00778

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

Autor: Marc Mauduit, Laura Falivene, Jennifer Morvan, François Vermersch, Guy Bertrand, Luigi Cavallo, Thomas Vives, Rodolphe Jazzar, Nicolas Vanthuyne, Vincent Dorcet, Ziyun Zhang, Thierry Roisnel, Christophe Crévisy

Publikováno v: Journal of the American Chemical Society
Journal of the American Chemical Society, 2020, 142 (47), pp.19895-19901. ⟨10.1021/jacs.0c10705⟩
Journal of the American Chemical Society, American Chemical Society, 2020, 142 (47), pp.19895-19901. ⟨10.1021/jacs.0c10705⟩

International audience; An expedient access to the first optically pure ruthenium complexes containing C(1)-symmetric cyclic (alkyl)(amino)carbene ligands is reported. They demonstrate excellent catalytic performances in asymmetric olefin metathesis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44bc3aee3abbda86525cb05d9ebb53f2
https://doi.org/10.1021/jacs.0c10705