1: H2, triphenylphosphine, rhodium acetate dimer / ethyl acetate / 20 h / 80 °C / 9000.7 Torr 2: 100 percent / N-methylmorpholine N-oxide (NMO), RuCl2(Ph3P)3 / dimethylformamide / 0.17 h 3: 97 percent / 6 N HCl / tetrahydrofuran / 0.5 h 4: 70 percent / p-chloranil / 2-methyl-propan-2-ol / Heating View Scheme

1: H2, triphenylphosphine, rhodium acetate dimer / ethyl acetate / 20 h / 80 °C / 9000.7 Torr 2: 100 percent / N-methylmorpholine N-oxide (NMO), RuCl2(Ph3P)3 / dimethylformamide / 0.17 h 3: 97 percent / 6 N HCl / tetrahydrofuran / 0.5 h 4: 70 percent / p-chloranil / 2-methyl-propan-2-ol / Heating 5: TMSOTf / tetrahydrofuran / 1 h / Ambient temperature View Scheme

1: H2, triphenylphosphine, rhodium acetate dimer / ethyl acetate / 20 h / 80 °C / 9000.7 Torr 2: 100 percent / N-methylmorpholine N-oxide (NMO), RuCl2(Ph3P)3 / dimethylformamide / 0.17 h 3: 97 percent / 6 N HCl / tetrahydrofuran / 0.5 h 4: 70 percent / p-chloranil / 2-methyl-propan-2-ol / Heating 5: 64 percent / TMSOTf / tetrahydrofuran / 1 h / Ambient temperature View Scheme