ethyl-α,α,α-trifluoroacetate in tetrahydrofuran; water T=20°C;

<b>Multi-step reaction with 2 steps<br /> </b>1: piperidine / ethanol / 2 h / 79 &deg;C<br />2: piperidine; ammonium acetate / ethanol / 20 h / 79 &deg;C<br /> <br /> &nbsp;