potassium tert-butylate in benzene 24 h; Ambient temperature;

1: With hydrogenchloride; water in tetrahydrofuran 48 h; 2: With water; sodium carbonate pH=5;

1: 82 percent / t-BuOK / benzene / 24 h / Ambient temperature 2: 100 percent / H2 / 5percent Pd/C / ethanol / 759.8 Torr / Ambient temperature 3: 51 percent / MnO2 / CH2Cl2 / 30 h / Ambient temperature View Scheme

palladium; acetic acid Hydrogenolyse;