1: DIBAH / tetrahydrofuran / 0 °C 2: 92 percent 3: 1.) HCO2NH4, PdCl2(PPh3)2, 2.) NaOH 5: 99 percent / LiAlH4 View Scheme

<b>Multi-step reaction with 4 steps<br /> </b>2: 1.) BCl₃, 2.) HCl / 1.) CH₂Cl₂, 2.) MeOH<br />3: Fe(ClO₄)3, trifluoroacetic acid / CH₂Cl₂ <br />4: K₂CO₃ / dimethylformamide<br /> <br /> &nbsp;

<b>Multi-step reaction with 5 steps<br /> </b>1: 75 percent<br />3: 1.) BCl₃, 2.) HCl / 1.) CH₂Cl₂, 2.) MeOH<br />4: Fe(ClO₄)3, trifluoroacetic acid / CH₂Cl₂ <br />5: K₂CO₃ / dimethylformamide<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 1.) BCl₃, 2.) HCl / 1.) CH₂Cl₂, 2.) MeOH<br />2: Fe(ClO₄)3, trifluoroacetic acid / CH₂Cl₂ <br />3: K₂CO₃ / dimethylformamide<br /> <br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>2: 1.) BCl₃, 2.) HCl / 1.) CH₂Cl₂, 2.) MeOH<br />3: Fe(ClO₄)3, trifluoroacetic acid / CH₂Cl₂ <br />4: K₂CO₃ / dimethylformamide<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4267587', constants.ctx, '0')">potassium carbonate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '605365', constants.ctx, '0')">N,N-dimethyl-formamide</a> <br />&nbsp;Yield given;&nbsp;<br /> &nbsp;