1.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 1 h / -20 °C 2.1: palladium diacetate; CuF2; N,N'-dimethyl-N,N'-propyleneurea / acetone / 24 h / 100 °C / |Inert atmosphere; |Schlenk technique 3.1: sodium nitrite; acetic acid / acetic anhydride / 48.5 h / -15 °C 3.2: 2 h / -15 °C 3.3: 2 h / 0 °C View Scheme

hydrogen; Pd-BaSO4 in xylene T=110°C; 10 h;