sodium hydroxide in ethanol 4 h; Heating;

<b>Multi-step reaction with 5 steps<br /> </b>1: 10percent HCl / methanol / 2 h / Heating<br />2: ethanol / 2 h / Heating<br />3: 75.8 percent / Dowtherm A / 0.22 h / 248 - 249 &deg;C<br />4: 1.) potassium carbonate / 1.) DMF, 100 deg C, 30 min; 2.) 100 deg C, 3 h<br />5: 72.9 percent / 15percent HCl / ethanol / 0.25 h / Heating<br /> <br /> &nbsp;