Methyltriphenylphosphonium bromide; sodium hexamethyldisilazane in tetrahydrofuran T=0 - 20°C;

&nbsp;(i) Li, MeNH₂, (ii) H₂O;&nbsp;&nbsp;Multistep reaction;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 60 percent / 5-methyl-2-chloro-3-phenyl-2,3-dihydro-1,3,4,2-oxadiazaphosphole, pyridine / Ambient temperature<br />2: 78 percent / DIBALH / CH₂Cl₂ / 0.5 h / -10 - 20 &deg;C<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4548207', constants.ctx, '0')">Dess-Martin periodane</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1730800', constants.ctx, '0')">dichloromethane</a> <br />T=20&deg;C;&nbsp;0.583333&nbsp;h;&nbsp;<br /> &nbsp;