Efficient grafting of dipyridylmethane ligands on highly cross-linked as well as gel-type chloromethylated polystyrenes has been achieved using phenolic derivatives of the ligands. In this way, chiral polymer-supported ligands with pseudo-C2 symmetry were obtained. The synthesis of the ligands and their grafting under mild conditions are described, as well as the preparation of monomeric models. During reduction of 6, 6'-(2, 2-dimethyl-l-oxopropyl) ...
