sodium hydroxide in ethanol Heating;

&nbsp;(i) (diazotization), (ii) CuCl;&nbsp;&nbsp;Multistep reaction;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 5 steps<br /> </b>1: potassium dichromate; sulfuric acid / water / 2 h / 65 &deg;C<br />2: nitric acid / 2 h / -3 &deg;C<br />3: thionyl chloride / 2 h / |Reflux<br />4: tin(ll) chloride / methanol / 24 h / 50 &deg;C<br />5: copper(l) chloride; sodium nitrite; hydrogenchloride / water / 1 h / 5 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1: nitric acid / 2 h / -3 &deg;C<br />2: thionyl chloride / 2 h / |Reflux<br />3: tin(ll) chloride / methanol / 24 h / 50 &deg;C<br />4: copper(l) chloride; sodium nitrite; hydrogenchloride / water / 1 h / 5 &deg;C<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '8129999', constants.ctx, '0')">silver(l) oxide</a> <br /> <br /> &nbsp;