1: With sodium hydroxide in ethanol; water 1 h; Reflux; 2: With hydrogenchloride in ethanol; water pH=1;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '11323438', constants.ctx, '0')">AlCl₃, aluminium chloride</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1730800', constants.ctx, '0')">dichloromethane</a> <br />T=20&deg;C;&nbsp;Knoevenagel condensation;&nbsp;2&nbsp;h;&nbsp;<br /> &nbsp;