sodium hydroxide in ethanol 1 h; Heating;

<b>Multi-step reaction with 2 steps<br /> </b>1: 67 percent / HCl conc. / ethanol / 2 h / Heating<br />2: 1) ethanol, heating 3h, 2) precipitate + heating 4h<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 1)KOH, 2)tetraethylammonium chloride / 1) methanol, 60 deg C, 10 - 15 min and methanol distilled out, 2) CHCl₃, heating 1h<br />2: 1) ethanol, heating 3h, 2) precipitate + heating 4h<br /> <br /> &nbsp;