hydrogenchloride; sodium nitrite in water 1 h; Yield given;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1098214', constants.ctx, '0')">hydrogenchloride</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '11342958', constants.ctx, '0')">tin</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102551', constants.ctx, '0')">1,4-dioxane</a> <br />&nbsp;Heating;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1: 93.7 percent / conc. HNO₃ / acetic acid / 2 h / Ambient temperature<br />2: 1.) POCl₃, 2.) PhNEt₂ / 1.) 70 - 90 deg C, 2.) 70 - 90 deg C, 3 h<br />3: 90.2 percent / conc. aq. NH₄OH / dioxane / 0.25 h / 60 &deg;C<br />4: tin, conc. aq. HCl / dioxane / Heating<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 90.2 percent / conc. aq. NH₄OH / dioxane / 0.25 h / 60 &deg;C<br />2: tin, conc. aq. HCl / dioxane / Heating<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 1.) POCl₃, 2.) PhNEt₂ / 1.) 70 - 90 deg C, 2.) 70 - 90 deg C, 3 h<br />2: 90.2 percent / conc. aq. NH₄OH / dioxane / 0.25 h / 60 &deg;C<br />3: tin, conc. aq. HCl / dioxane / Heating<br /> <br /> &nbsp;