1: 1.63 g / aluminium chloride / diethyl ether / 1.5 h / 15 °C / < 15 deg C 2: 490 mg / H2 / 5percent palladium-charcoal / ethyl acetate 3: 10.6 g / pyridine / 3.25 h / 80 - 90 °C 4: 12.52 g / N-bromosuccinimide / CCl4 / 0.58 h / Heating View Scheme

1: 490 mg / H2 / 5percent palladium-charcoal / ethyl acetate 2: 10.6 g / pyridine / 3.25 h / 80 - 90 °C 3: 12.52 g / N-bromosuccinimide / CCl4 / 0.58 h / Heating View Scheme

N-bromosuccinmide in tetrachloromethane 0.583333 h; Heating;

1: 10.6 g / pyridine / 3.25 h / 80 - 90 °C 2: 12.52 g / N-bromosuccinimide / CCl4 / 0.58 h / Heating View Scheme

1: acetonitrile / 2 h / Heating 2: triethylamine / toluene / 1.) reflux, 4 h, 2.) room temperature, 12 h 3: 90 percent / LiALH4 / diethyl ether / 0.75 h / Ambient temperature 4: 73 percent / potassium nitrosodisulphonate, AcONa / H2O; methanol / 0.5 h View Scheme

1: acetonitrile / 2 h / Heating 2: triethylamine / toluene / 1.) reflux, 4 h, 2.) room temperature, 12 h View Scheme

1: acetonitrile / 2 h / Heating 2: triethylamine / toluene / 1.) reflux, 4 h, 2.) room temperature, 12 h 3: 90 percent / LiALH4 / diethyl ether / 0.75 h / Ambient temperature View Scheme