DIPHOSPHINES CHIRALES HYDROSOLUBLES UTILES COMME LIGANDS DANS LA SYNTHESE DE COMPLEXES HYDROSOLUBLES DESTINES A LA CATALYSE ASYMETRIQUE

摘要

The invention concerns a water soluble compound of formula ( alpha ) wherein: A represents naphthyl or phenyl; and Ar1 and Ar2 independently represent a saturated or aromatic carbocyclic group; Xa, Xb are independently selected among an amino group, an ammonium group and an amino group modified by a linear polyoxyalkylene chain, provided that at least one of Xa and Xb represents ammonium or modified amino.