Catherine Bied, Joël J.E. Moreau, Michel Wong Chi Man. Chiral amino-urea derivatives of (1R,2R)-1,2-diaminocyclohexane as ligands in the ruthenium catalysed asymmetric reduction of aromatic ketones by hydride transfer. Tetrahedron: Asymmetry, 2001, Volume 12, Issue 2, Pages 329-336.
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http://dx.doi.org/10.1016/S0957-4166(01)00042-8