PNNP Macrocycles: A New Class of Ligands for Asymmetric Catalysis

2009-03-09T00:00:00Z (GMT) by Marco Ranocchiari Antonio Mezzetti
We report the first examples of enantiomerically pure P2N2 macrocycles containing either a diimino (1a) or diamino donor set, as well as their ruthenium(II) dichloro complexes. Unexpectedly, the diimino derivative 2a is a more efficient catalyst in the transfer hydrogenation of acetophenone than its diamino analogue.