Enantiopure Ti(IV) amino triphenolate complexes as NMR chiral solvating agents

Cristiano Zonta; Andrej Kolarovic; Miriam Mba; Marta Pontini; E Peter Kündig; Giulia Licini

doi:10.1002/chir.20994

Enantiopure Ti(IV) amino triphenolate complexes as NMR chiral solvating agents

Chirality. 2011 Oct;23(9):796-800. doi: 10.1002/chir.20994.

Authors

Cristiano Zonta¹, Andrej Kolarovic, Miriam Mba, Marta Pontini, E Peter Kündig, Giulia Licini

Affiliation

¹ Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova 35131, Italy.

PMID: 22135809
DOI: 10.1002/chir.20994

Abstract

Enantiopure Ti(IV) complexes bearing pseudo-C(3) amino triphenolate ligands have been synthesized and characterized. The complexes bearing ortho phenyl groups act as (1)H NMR chiral solvating agent (CSA) for the stereochemical analysis of a series of sulfoxides. The coordination of a Lewis base coligand (sulfoxide) and the presence of aromatic rings are the key structural factors for the efficiency of the CSA.