1: 58 percent / BF3*MeOH / 17 h / Ambient temperature 2: BBr3 / CH2Cl2 / 18 h / -78 °C 3: 40 percent / Fremy's salt, KH2PO4 / H2O; acetone / 0.5 h / Ambient temperature View Scheme

1: 83 percent / PCC, NaOAc / CH2Cl2 / 2.5 h / Ambient temperature 2: 58 percent / BF3*MeOH / 17 h / Ambient temperature 3: BBr3 / CH2Cl2 / 18 h / -78 °C 4: 40 percent / Fremy's salt, KH2PO4 / H2O; acetone / 0.5 h / Ambient temperature View Scheme

1: Grubb's 2nd generation catalyst / toluene / 1 h / 70 °C 2: hydrogenchloride; water / methanol / 1 h / 60 °C View Scheme

1: dihydrogen peroxide; iodine / water 2: copper diacetate; palladium diacetate / acetic acid / 48 h / Reflux View Scheme

1: dihydrogen peroxide; iodine / water 2: copper diacetate; palladium diacetate / acetic acid / 48 h / Reflux View Scheme

1: methanol; copper(l) iodide / N,N-dimethyl-formamide / 10 h / 120 °C / Inert atmosphere 2: ammonium cerium (IV) nitrate / water; acetonitrile / 0.25 h / 0 °C / Inert atmosphere 3: bromine; triphenylphosphine / dichloromethane / 4 h / 20 °C / Inert atmosphere 4: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 °C / Inert atmosphere 5: hydrogen / methanol / 3 h / 20 °C / 3102.97 Torr View Scheme

1.1: N-bromosuccinmide / N,N-dimethyl-formamide / 0.5 h / 20 °C / Inert atmosphere 2.1: sodium hydride / N,N-dimethyl-formamide; mineral oil / 0 - 20 °C / Inert atmosphere 2.2: 1 h / 20 °C / Inert atmosphere 3.1: toluene-4-sulfonic acid / toluene / 5 h / Inert atmosphere; Reflux 4.1: n-butyllithium / tetrahydrofuran / 0.5 h / -10 °C / Inert atmosphere 4.2: -40 - 20 °C / Inert atmosphere 5.1: sulfuric acid; dihydrogen peroxide; boric acid / methanol; water / 0.5 h / Inert atmosphere; Reflux 5.2: 20 °C / Inert atmosphere 6.1: hydrogen / methanol / 3 h / 20 °C / 3102.97 Torr View Scheme

1.1: sodium hydride / N,N-dimethyl-formamide; mineral oil / 0 - 20 °C / Inert atmosphere 1.2: 1 h / 20 °C / Inert atmosphere 2.1: methanol; copper(l) iodide / N,N-dimethyl-formamide / 10 h / 120 °C / Inert atmosphere 3.1: ammonium cerium (IV) nitrate / water; acetonitrile / 0.25 h / 0 °C / Inert atmosphere 4.1: bromine; triphenylphosphine / dichloromethane / 4 h / 20 °C / Inert atmosphere 5.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 °C / Inert atmosphere 6.1: hydrogen / methanol / 3 h / 20 °C / 3102.97 Torr View Scheme

1: ammonium cerium (IV) nitrate / water; acetonitrile / 0.25 h / 0 °C / Inert atmosphere 2: bromine; triphenylphosphine / dichloromethane / 4 h / 20 °C / Inert atmosphere 3: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 °C / Inert atmosphere 4: hydrogen / methanol / 3 h / 20 °C / 3102.97 Torr View Scheme

1: bromine; triphenylphosphine / dichloromethane / 4 h / 20 °C / Inert atmosphere 2: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 °C / Inert atmosphere 3: hydrogen / methanol / 3 h / 20 °C / 3102.97 Torr View Scheme