Metal as Source of Chirality in Octahedral Complexes with Tripodal Tetradentate Ligands

Carmona, M. ; Rodríguez, R. (Universidad de Zaragoza) ; Passarelli, V. ; Lahoz, F.J. (Universidad de Zaragoza) ; García-Orduna, P. (Universidad de Zaragoza) ; Carmona, D.

Resumen: The challenging control of the absolute configuration of chiral-at-metal complexes is efficiently achieved using the tripodal tetradentate ligand L. The optical resolution of rac-[RhCl2(¿4C, N, N', P-L)] mediated by (S)-a-phenylglycine provides access to enantiopure complexes of general formula [Rh(¿4C, N, N', P-L)A(Solv)][SbF6]n that enantioselectively catalyze the Diels-Alder reaction between methacrolein and HCp with enantiomeric ratio of up to >99/1. The nature of the active species, the origin of the enantioselectivity and mechanistic details are disclosed by means of NMR spectroscopy and DFT studies.

Idioma: Inglés

DOI: 10.1021/jacs.7b12731

Año: 2018

Publicado en: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 140, 3 (2018), 912-915
ISSN: 0002-7863

Factor impacto JCR: 14.695 (2018)

Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 12 / 172 = 0.07 (2018) - Q1 - T1

Factor impacto SCIMAGO: 7.468 - Biochemistry (Q1) - Colloid and Surface Chemistry (Q1) - Chemistry (miscellaneous) (Q1) - Catalysis (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/E63
Financiación: info:eu-repo/grantAgreement/ES/DGA/FSE
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2015-66079-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/RYC-2013-13800

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Química Inorgánica (Dpto. Química Inorgánica)