1.1: Mg / tetrahydrofuran / 1 h / Heating 1.2: 81 percent / tetrahydrofuran / 0 °C 2.1: tetrahydrofuran / 2.5 h / 0 °C View Scheme

1: bromobenzene With magnesium in tetrahydrofuran 1 h; Heating; 2: N-methoxy-N-methyl-3-piperidin-1-yl-propionamide in tetrahydrofuran T=0°C;