potassium hydroxide in methanol; water 4 h; Ambient temperature;

1: 2.) 10percent H2SO4 / 1.) 70 deg C, 1 h, 2.) H2O, 90 deg C, 2 h 2: 20 percent / tetrahydrofuran / 24 h / Irradiation View Scheme

1: 2.) 10percent H2SO4 / 1.) 70 deg C, 1 h, 2.) H2O, 90 deg C, 2 h 2: 20 percent / tetrahydrofuran / 24 h / Irradiation 3: 25 percent / LiAlH4 / diethyl ether / 2 h / 0 °C View Scheme

1: p-TsOH / toluene / Heating 2: H2 / Raney-Ni / methanol / 75006 Torr 3: 1) H2, 2)AcOH / 1) Pd-C(10percent) / 1) 50 deg C, 50 bar, 2) 50 deg C, 48 h View Scheme