hydrogen; palladium 10 on activated carbon in methanol P=760.051 Torr; 24 h;

1.1: N,N,N',N'-tetramethylguanidine / tetrahydrofuran / 1 h / -20 °C 1.2: 15 h / 20 °C 2.1: hydrogen / ((S,S-Me-BPE)-Rh)BF4 / methanol / 18 h / 2585.81 Torr / Inert atmosphere 3.1: hydrogen / palladium on activated charcoal / ethanol / 2 h / Inert atmosphere View Scheme

1: hydrogen / ((S,S-Me-BPE)-Rh)BF4 / methanol / 18 h / 2585.81 Torr / Inert atmosphere 2: hydrogen / palladium on activated charcoal / ethanol / 2 h / Inert atmosphere View Scheme