1: With 4-methoxy-phenol in toluene T=130°C; 5 h; 2: With hydrogenchloride in water; toluene T=130°C; 10 h;

1: pyridine / 0 °C 2: 27 percent / MgI2 / acetone / Heating 3: 1.) bis(dimethylglyoximato)(pyridine)cobalt(I) / 1.) MeOH, RT, 6 h, 2.) benzene, irradiation View Scheme