1: 68.9 percent / Et3N, 4-(dimethylamino)pyridine (DMAP) / CHCl3 / 26 h / Ambient temperature 2: Bu3SnH, AIBN / benzene / 2 h / Heating View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: 78.5 percent / ZnI₂ / 1,2-dichloro-ethane / 0.5 h / Ambient temperature<br />2: 97.8 percent / 5percent aq. K₂CO₃ / methanol / 0.25 h / Heating<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 78.5 percent / ZnI₂ / 1,2-dichloro-ethane / 0.5 h / Ambient temperature<br />2: 97.8 percent / 5percent aq. K₂CO₃ / methanol / 0.25 h / Heating<br /> <br /> &nbsp;