1.1: methanesulfonic acid / 0.5 h / 90 °C / Inert atmosphere 2.1: hydrazine hydrate / diethylene glycol / 0.5 h / 20 °C 2.2: 120 - 215 °C 3.1: AlCl3, aluminium chloride / tetrachloroethane, 1,1,2,2- / 20 °C / Cooling with ice 4.1: hydrazine hydrate / diethylene glycol / 0.5 h / 20 °C 4.2: 120 - 215 °C 5.1: sulfuric acid / Reflux 6.1: palladium 10 on activated carbon / triglyme (triethylene glycol dimethyl ether) / 4 h / 240 °C / Inert atmosphere 7.1: methanesulfonic acid / 0.5 h / 90 °C / Inert atmosphere 8.1: n-butyllithium; N-cyclohexyl-N-isopropylamine / tetrahydrofuran; hexane / -78 °C / Inert atmosphere 8.2: 1 h / -78 °C / Inert atmosphere 9.1: palladium 10 on activated carbon / triglyme (triethylene glycol dimethyl ether) / 4 h / 240 °C / Inert atmosphere 10.1: diisobutylaluminium hydride / hexane; toluene / 1 h / -78 °C / Inert atmosphere 10.2: Inert atmosphere 11.1: methanesulfonic acid / dichloromethane / 0.5 h / 20 °C / Cooling with ice View Scheme

indium tribromide; 1,1,3,3-tetramethyldisiloxane; iodine in chloroform T=20 - 60°C; 0.583333 h; Sealed tubeInert atmosphere;

triethylsilane; tris(pentafluorophenyl)-borane in dichloromethane T=20°C;

xenon difluoride in dichloromethane T=20°C; 14 - 18 h; Inert atmosphere;

1.1: methanesulfonic acid / 0.5 h / 90 °C / Inert atmosphere 2.1: hydrazine hydrate / diethylene glycol / 0.5 h / 20 °C 2.2: 120 - 215 °C 3.1: AlCl3, aluminium chloride / tetrachloroethane, 1,1,2,2- / 20 °C / Cooling with ice 4.1: hydrazine hydrate / diethylene glycol / 0.5 h / 20 °C 4.2: 120 - 215 °C 5.1: sulfuric acid / Reflux 6.1: palladium 10 on activated carbon / triglyme (triethylene glycol dimethyl ether) / 4 h / 240 °C / Inert atmosphere 7.1: methanesulfonic acid / 0.5 h / 90 °C / Inert atmosphere View Scheme

1: HNO3+H2SO4 / -10 °C 2: tin (II)-chloride; hydrochloric acid 3: Diazotization.Behandeln mit Kupfer(I)-chlorid View Scheme

1: thionyl chloride / 2 h / Reflux 2: diethyl ether / 0 - 20 °C 3: sulfuric acid / 0.5 h / 0 °C 4: Oxone; 2-iodo benzoic acid; tetra(n-butyl)ammonium hydrogensulfate / acetonitrile / 6 h / 60 °C View Scheme

1: 22 percent / HNO3 / 6 h / Ambient temperature 2: 70 percent / HCl / 12 h / Heating 3: 85 percent / cyclohexene / Pd/C / ethanol / 18 h / Heating View Scheme

1: With lithium aluminium tetrahydride in tetrahydrofuran T=0 - 20°C; 2: With water in tetrahydrofuran

sodium hydroxide in diethyl ether; water