1: 69 percent / i-Pr3P / IrH5<P(Pr-i)3>2 / toluene / 61 h / 110 °C 2: 0.1 N HCl / acetone; H2O / 0.75 h / Heating View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3535267', constants.ctx, '0')">ethylmagnesium bromide</a> <br />&nbsp;Yield given. Multistep reaction;&nbsp;<br /> &nbsp;