Hy. Rhyoo et al., The first Ru(II)-catalysed asymmetric hydrogen transfer reduction of aromatic ketones in aqueous media, CHEM COMMUN, (20), 2001, pp. 2064-2065
The first water-soluble asymmetric hydrogen-transfer ruthenium(II) catalyst
system consisting of [Ru(p-cymene)Cl-2](2), (S)-proline amide, and sodium
formate, which gives high conversion rates with high ee values up to 95.3%
and is reusable, has been developed.