pyridine; hydrogenchloride in acetic anhydride

pyridine

<b>Multi-step reaction with 2 steps<br /> </b>1: tetrabutylammonium fluoride / tetrahydrofuran / 20 &deg;C<br />2: H₂ / Pd/C / methanol / 20 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: tetrahydrofuran / 0 &deg;C<br />2: tetrabutylammonium fluoride / tetrahydrofuran / 20 &deg;C<br />3: H₂ / Pd/C / methanol / 20 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1: imidazole; pyridine / 20 &deg;C<br />2: tetrahydrofuran / 0 &deg;C<br />3: tetrabutylammonium fluoride / tetrahydrofuran / 20 &deg;C<br />4: H₂ / Pd/C / methanol / 20 &deg;C<br /> <br /> &nbsp;

Stage #1: &nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a> <br />T=20&deg;C;&nbsp;&nbsp;Inert atmosphereCooling;&nbsp;<br />Stage #2: <b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '4371014', constants.ctx, '0')">ammonium chloride</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a> <br />&nbsp;Cooling with ice;&nbsp;<br /> &nbsp;

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<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '11343078', constants.ctx, '0')">sodium tetrahydroborate</a> <br /> <br /> &nbsp;