6533b85bfe1ef96bd12ba148
RESEARCH PRODUCT
Steric vs. electronic stereocontrol in syndio- or iso-selective ROP of functional chiral β-lactones mediated by achiral yttrium-bisphenolate complexes
Romain LignySophie M. GuillaumeJean-françois CarpentierMikko M. Hänninensubject
Steric effectsStereochemistryisomeriachemistry.chemical_element010402 general chemistry01 natural sciencesCatalysisTacticityMaterials Chemistry[CHIM]Chemical Sciencesta116steric vs. electronic stereocontrol010405 organic chemistryLigand[CHIM.ORGA]Chemical Sciences/Organic chemistryMetals and AlloysGeneral ChemistryYttriumkompleksiyhdisteetachiral yttrium-bisphenolate complexes0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialschemistryfunctional chiral β-lactonesCeramics and CompositesStereoselectivitydescription
International audience; Origins of stereoselectivity in ROP of racemic chiral cyclic esters promoted by achiral yttrium complexes, resulting in the formation of highly heterotactic polylactide, and highly syndiotactic or, more uniquely, highly isotactic poly(3-hydroxybutyrate)s, are discussed. A close interplay between the nature of the cyclic ester, most particularly of the exocyclic functional chain installed on the chiral center of β-lactones, and the ortho-substituents installed on the phenolate rings of the ligand, results in various determining secondary interactions of steric and also electronic nature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-01-01 |