1: 95 percent 2: 83 percent / dimethylformamide / 15 h / 20 °C 3: hydrobromic acid; acetic acid 4: potassium carbonate 5: borane-tetrahydrofuran complex / acetonitrile / 3 h / 20 °C 6: 86 percent / hydrogen / Pd/C / methanol / 72 h / 114000 Torr View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1209424', constants.ctx, '0')">sulfuryl dichloride</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1730800', constants.ctx, '0')">dichloromethane</a> <br />1&nbsp;h;&nbsp;&nbsp;Ambient temperature;&nbsp;<br /> &nbsp;