1: With lithium aluminium tetrahydride in tetrahydrofuran T=0°C; 0.5 h; 2: With sodium hydroxide; water in tetrahydrofuran

<b>Multi-step reaction with 2 steps<br /> </b>1.1: sodium hydroxide / 1,4-dioxane / 2.5 h / 22 &deg;C<br />1.2: pH 2 / Cooling<br />2.1: potassium carbonate / N,N-dimethyl-formamide / 16 h / 22 &deg;C<br /> <br /> &nbsp;