1.1: hydrogen / [RhCl(η2:η2-cycloocta-1,5-diene)]2; (R)-1-[(S)-2-(diphenyl phosphino)ferrocenyl]-ethyl-tert-butylphosphine / water; methanol / 24 h / 30 °C / 5069.54 Torr 2.1: sodium hydroxide; water / methanol / 1.5 h / 40 - 45 °C 2.2: pH 2 - 3 View Scheme

With  ammonium acetate in  ethanol 7 h;  Reflux;