1.1: hydrogen; acetic acid / palladium 10 on activated carbon / ethanol / 24 h 2.1: 1 h / 130 °C 3.1: diphenylether / 0.75 h / 255 °C 4.1: sodium hydroxide; ethanol / Reflux 4.2: pH 4 5.1: trichlorophosphate / N,N-dimethyl-formamide / 5 h / Reflux 5.2: 1 h / 0 - 5 °C 6.1: N-ethyl-N,N-diisopropylamine / 1-methyl-pyrrolidin-2-one / 120 °C 7.1: potassium hydroxide; [bis(acetoxy)iodo]benzene / methanol / Cooling with ice View Scheme