1: 64 percent / Hg(CN)2 / 1,2-dichloro-ethane / 1.) 70 deg C, 4 h, 2.) 50 deg C, 16 h 2: BF3*Et2O / toluene / 1 h / 55 °C View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1900293', constants.ctx, '0')">dichloromethoxy methane</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '8128175', constants.ctx, '0')">zinc(II) chloride</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1730800', constants.ctx, '0')">dichloromethane</a> <br />T=22&deg;C;&nbsp;2&nbsp;h;&nbsp;<br /> &nbsp;