1: 83 percent / pentyl nitrite, trichloroacetic acid / acetic acid / 1.) 2h, 2.) 0 deg C, 3 h 2: 88 percent / H2 / platinum oxide / tetrahydrofuran / 1.5 h / 3040 Torr 3: 79 percent / dimethylformamide / 2 h / Ambient temperature 4: 84 percent / triethylamine / 6 h / Heating View Scheme

1: 88 percent / H2 / platinum oxide / tetrahydrofuran / 1.5 h / 3040 Torr 2: 79 percent / dimethylformamide / 2 h / Ambient temperature 3: 84 percent / triethylamine / 6 h / Heating View Scheme

1: 94 percent / ethanol / 3 h / 0 °C 2: 83 percent / pentyl nitrite, trichloroacetic acid / acetic acid / 1.) 2h, 2.) 0 deg C, 3 h 3: 88 percent / H2 / platinum oxide / tetrahydrofuran / 1.5 h / 3040 Torr 4: 79 percent / dimethylformamide / 2 h / Ambient temperature 5: 84 percent / triethylamine / 6 h / Heating View Scheme

1: 94 percent / ethanol / 3 h / 0 °C 2: 83 percent / pentyl nitrite, trichloroacetic acid / acetic acid / 1.) 2h, 2.) 0 deg C, 3 h 3: 88 percent / H2 / platinum oxide / tetrahydrofuran / 1.5 h / 3040 Torr 4: 79 percent / dimethylformamide / 2 h / Ambient temperature 5: 84 percent / triethylamine / 6 h / Heating View Scheme

triethylamine 6 h; Heating;

1: 79 percent / dimethylformamide / 2 h / Ambient temperature 2: 84 percent / triethylamine / 6 h / Heating View Scheme