Gerlinde Mehler, Pawel Linowski, Javier Carreras, Alessandro Zanardi, Jonathan W. Dube, and Manuel Alcarazo
The bulkier the better! A series of strong π-acceptor dicationic phosphines were prepared through a modular synthetic route. Preliminary studies on Au catalysis indicate that, once the Lewis acidity on the metal surpasses a critical value, it is the bulkiness of the ligand that controls the overall reaction speed.
Chem. Eur. J. 2016, 22, 15320; doi: 10.1002/chem.201601759