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A series of chiral tetra-dentate ligands were synthesized and fully characterized by IR spec tros-copy, multinuclear one-and two-dimensional NMR spectroscopy, mass spectroscopy.Asymmetric transfer hydrogenation of acetophenone with the catalysts prepared in situ from Rh-, Ir-and Ru-complexes and ch-iral tetra-dentate ligands in i-PrOH gave the corresponding optically active secondary alcohols in high co-nversions under mild reaction conditions.