Metal as Source of Chirality in Octahedral Complexes with Tripodal Tetradentate Ligands
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...
| Autores: | , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Universidad de Zaragoza |
| Repositorio: | Zaguán. Repositorio Digital de la Universidad de Zaragoza |
| OAI Identifier: | oai:zaguan.unizar.es:78289 |
| Acceso en línea: | http://zaguan.unizar.es/record/78289 |
| Access Level: | acceso abierto |
| Sumario: | 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. |
|---|