1: 1.) KOt-C4H9, 2.) C5H5N / 1.) THF, 0 deg C - -78 deg C - RT, 2.) (C2H5)2O, RT 2: 454 - 650 °C / 0.05 - 0.3 Torr / flash vacuum pyrolysis 4: 75 percent / 2-propylmagnesium bromide / (Ph3P)2NiCl2 / tetrahydrofuran; diethyl ether / Heating View Scheme

1: 1.) KOt-C4H9, 2.) C5H5N / 1.) THF, 0 deg C - -78 deg C - RT, 2.) (C2H5)2O, RT 2: 454 - 650 °C / 0.05 - 0.3 Torr / flash vacuum pyrolysis 3: HCl / ethanol 4: 65 percent / 2-propylmagnesium bromide / (Ph3P)2NiCl2 / tetrahydrofuran; diethyl ether / Heating View Scheme