1: sodium carbonate / acetone / 6 h / Reflux 2: potassium carbonate / N,N-dimethyl-formamide / 6 h / 80 °C View Scheme

1.1: copper; sodium hydroxide / water / Reflux 1.2: Reflux 2.1: sodium carbonate / acetone / 6 h / Reflux 3.1: potassium carbonate / N,N-dimethyl-formamide / 6 h / 80 °C View Scheme

1.1: bromine; acetic acid / 1.5 h 2.1: copper; sodium hydroxide / water / Reflux 2.2: Reflux 3.1: sodium carbonate / acetone / 6 h / Reflux 4.1: potassium carbonate / N,N-dimethyl-formamide / 6 h / 80 °C View Scheme

sodium ethanolate

1: NaBH4 / methanol / 0.17 h / 20 °C 2: PBr3 / diethyl ether / 1 h / 20 °C View Scheme

1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 4 h / 20 °C 2: sodium hydroxide / methanol / 3 h / 20 °C 3: potassium carbonate / acetone View Scheme

1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 4 h / 20 °C 2: sodium hydroxide / methanol / 3 h / 20 °C 3: potassium carbonate / acetone 4: trichlorophosphate / 3.5 h / 0 - 80 °C 5: potassium hydroxide / methanol; water / 24.5 h / 0 - 20 °C 6: palladium 10 on activated carbon; hydrogen / methanol; ethyl acetate / 72 h / 20 °C View Scheme

1: aqueous-alcoholic KOH-solution 2: zinc / dann Reduktion mit Natriumamalgam in Eisessig + Alkohol 3: water; methanol / Stehenlassen des Reaktionsgemisches mit verd. Salzsaeure View Scheme

1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 4 h / 20 °C 2: sodium hydroxide / methanol / 3 h / 20 °C 3: potassium carbonate / acetone 4: trichlorophosphate / 3.5 h / 0 - 80 °C View Scheme