反应条件
1: potassium carbonate / butanone / Reflux 2: potassium carbonate / 1-methyl-pyrrolidin-2-one / 14 h / 50 °C 3: sodium hydroxide; water / methanol / Reflux 4: thionyl chloride / N,N-dimethyl-formamide; chlorobenzene / 50 °C 5: AlCl3, aluminium chloride / dichloromethane / 20 h / 0 - 10 °C View Scheme