2: 75 percent / 2-propylmagnesium bromide / (Ph3P)2NiCl2 / tetrahydrofuran; diethyl ether / Heating View Scheme

<b>Multi-step reaction with 6 steps<br /> </b>1: 1.) LiH, 2.) H₂SO₄ / 1.) THF, HMPA, room temp.<br />2: 1.) NCS, 2.) t-BuOK / 1.) CCl₄, reflux, 2.) THF, from -20 deg C to room temp.<br />3: 86 percent / LiAlH₄ / diethyl ether / Heating<br />4: 1.) n-BuLi / 1.) hexane room temp., 2.) THF, -78 deg C<br />5: 1.) t-BuOK / 1.) THF<br />6: 545 - 650 &deg;C / 0.05 - 0.3 Torr<br /> <br /> &nbsp;