This work describes the synthesis of three key intermediates of Noyori-type catalytic systems that are active precatalysts for the transfer hydrogenation of acetophenone. Isolation of the cationic chloro(dihydrogen) complex [RuCl(H2)(H2NNPP)(PCy3)][BArf4] provides a facile synthetic route to the corresponding cationic and neutral hydrido complexes, and the series highlights the links between hydride/dihydrogen and amine/amido ligands in neutral and cationic species.
Picot, A., Dyer, H., Buchard, A., Auffrant, A., Vendier, L., Le Floch, P., & Sabo-Etienne, S. (2010). Interplay between hydrido/dihydrogen and amine/amido ligands in ruthenium-catalyzed transfer hydrogenation of ketones. Inorganic Chemistry, 49(4), 1310-1312. https://doi.org/10.1021/ic902339j