Cl2Ni(1,2-bis(diphenylphosphino)ethane); magnesium 1.) Et2O, 2.) Et2O, benzene, reflux; Yield given. Multistep reaction;

formaldehyd; water; acetone; Amberlyst 15 T=80°C; 72 h;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1209425', constants.ctx, '0')">perchloric acid</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3902804', constants.ctx, '0')">silica gel</a> <br />T=25 - 30&deg;C;&nbsp;0.5&nbsp;h;&nbsp;<br /> &nbsp;