polymethylhydrosiloxane; zinc(II) chloride; tetrakis(triphenylphosphine) palladium(0) in tetrahydrofuran T=20°C;

<b>Multi-step reaction with 2 steps<br /> </b>1.1: (PhSO₂)2 / toluene; CD₂Cl₂ / 21 h / 80 &deg;C<br />2.1: NaH / tetrahydrofuran / 1 h / 0 &deg;C<br />2.2: 83.8 percent / tetrahydrofuran / 0 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 1.) Li, naphthalene, 2.) H₂O / 1.) THF, -78 deg C - 10 deg C, 5 h<br />2: 80 percent / NaH / tetrahydrofuran / 6 h / Ambient temperature<br /> <br /> &nbsp;