Grubb's 2nd generation catalyst in dichloromethane T=20°C;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4267587', constants.ctx, '0')">potassium carbonate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '605365', constants.ctx, '0')">N,N-dimethyl-formamide</a> <br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1.1: BuLi / hexane; tetrahydrofuran / 2 h / 0 &deg;C<br />1.2: 65 percent / hexane; tetrahydrofuran / -78 &deg;C<br />2.1: 66 percent / K₂CO₃ / dimethylformamide<br /> <br /> &nbsp;