Author, as appears in the article.: Montserrat Diéguez Maria Biosca Marc Magre Oscar Pàmies
Department: Química Física i Inorgànica
URV's Author/s: DIÉGUEZ FERNÁNDEZ, MONTSERRAT Maria Biosca Marc Magre PAMIES OLLÉ, OSCAR
Keywords: asymmetric catalysis
Abstract: We have identified a readily accessible phosphinooxazoline based phosphite-oxazoline catalytic system, (S)-4-isopropyl-2-{2-[(3,3¿,5,5¿-tetra-tert-butyl-1,1¿-biphenyl-2,2¿-diyl)phosphite]-phenyl}-2-oxazoline (L1 a), that can hydroborate a range of 1,1-disubstituted aryl olefins with high enantioselectivity (up to 94%), excellent yields and perfect regioselectivity. The new phosphite-oxazoline ligands efficiently hydroborate a broader range of olefins than previous phosphinooxazoline ligands. In particular, a wide range of a-tert-butylstyrenes can be hydroborated that bear aryl substituents with different electronic and steric properties, which complements previous results with N-heterocyclic copper catalysts, the only other system reported to date that has achieved these reactions.
Research group: Organometàl.lics i Catàlisi Homogènia
Thematic Areas: Chemistry Química Química
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 1867-3880
Author identifier: 0000-0002-8450-0656 n/a n/a 0000-0002-2352-8508
Record's date: 2015-11-26
Last page: 120
Journal volume: 7
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2014
First page: 114
Publication Type: Post-print
Repositori URV