1: HCl 2: (i) (reduction), (ii) sulfur (heating) View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '2037554', constants.ctx, '0')">sulfuric acid</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br /> <br /> &nbsp;

&nbsp;Reaktion ueber mehrere Stufen;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: (i) AlCl₃, (ii) /BRN= 1718733/, HCl<br />2: (i) Zn-Hg, aq. HCl, (ii) EtOH, H₂SO₄, (iii) KOH<br />3: H₂SO₄ / H₂O<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: Na / ethanol<br />2: (i) KOH, (ii) (decarboxylation)<br />3: H₂SO₄ / H₂O<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: (i) Zn-Hg, aq. HCl, (ii) EtOH, H₂SO₄, (iii) KOH<br />2: H₂SO₄ / H₂O<br /> <br /> &nbsp;