1: 99 percent / ethanol / 2 h / 185 °C 2: 45 percent / sodium hydride, N-methylaniline / 4 h / Heating View Scheme

1: tetrakis(triphenylphosphine) palladium(0) / tetrahydrofuran / 40 h / Inert atmosphere; Reflux 2: sodium hydroxide / ethanol; water / 8 h / Reflux; Inert atmosphere View Scheme

1: tetrakis(triphenylphosphine) palladium(0) / tetrahydrofuran / 48 h / 60 °C / |Inert atmosphere 2: sodium hydroxide; water / ethanol / 8 h / |Reflux View Scheme

1.1: 3-chloro-benzenecarboperoxoic acid / ethylene glycol dimethyl ether / 2 h / 20 °C / |Cooling with ice 2.1: lithium hexamethyldisilazane / tetrahydrofuran / |Inert atmosphere 2.2: 2 h / 20 °C 3.1: sodium hydroxide; methanol / 4 h / 20 °C 4.1: potassium carbonate; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct / ethylene glycol dimethyl ether / 2 h / 120 °C / |Microwave irradiation View Scheme

sodium hydride; N-methylaniline Heating;

N-bromosuccinmide; sulfuric acid in tetrahydrofuran T=20°C; 2 h;

1: 14 percent / m-chloroperoxybenzoic acid / CH2Cl2 / 20 h / Ambient temperature 2: 1.) HNO3, trifluoroacetic acid, 2.) PCl3, 3.) NaH View Scheme

3-chloro-benzenecarboperoxoic acid in dichloromethane 20 h; Ambient temperature;