1: (Z)-pentadecen-4-en-1-yl 4-methylbenzenesulfonate in tetrahydrofuran Inert atmosphere; 2: 2-methylpropylmagnesium bromide With dilithium tetrachlorocuprate in tetrahydrofuran; diethyl ether T=-78 - 20°C; Inert atmosphere;

1.) -70 deg C, Di-Li-CuCl4, 2.) a) THF, 3 h to rt, b) 1 h; Yield given. Multistep reaction;

3-chloro-benzenecarboperoxoic acid in dichloromethane T=0 - 20°C; 3.5 h; Inert atmosphere; chemoselective reaction;

3-chloro-benzenecarboperoxoic acid in dichloromethane T=0 - 20°C; 3.5 h; Inert atmosphere; chemoselective reaction;

<b>Multi-step reaction with 2 steps<br /> </b>1: 90 percent / Bu₄NF / tetrahydrofuran / 2 h / 25 &deg;C<br />2: 87 percent / pyridine / 12 h / 0 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 1.) n-BuLi / 1.) from -78 deg C to 25 deg C, 30 min, 2.) from -78 deg C to 25 deg C, 1 h<br />2: 90 percent / Bu₄NF / tetrahydrofuran / 2 h / 25 &deg;C<br />3: 87 percent / pyridine / 12 h / 0 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 82 percent / LiNH₂ / dioxane / 24 h<br />2: 91 percent / H₂, ethylenediamine / P₂Ni / ethanol / slight positive pressure<br />3: 7.5 g / pyridine / 2 h / 0 - 5 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 82 percent / LiNH₂ / dioxane / 24 h<br />2: 91 percent / H₂, ethylenediamine / P₂Ni / ethanol / slight positive pressure<br />3: 7.5 g / pyridine / 2 h / 0 - 5 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1.1: C₃₂H₄₁N₃O₄Ru / tetrahydrofuran / 6 h / 35 &deg;C / |Inert atmosphere; |Glovebox<br />2.1: triethylamine; 4-(N,N-dimethlyamino)pyridine / dichloromethane / |Inert atmosphere<br />2.2: 4 h / 0 - 20 &deg;C / |Inert atmosphere<br /> <br /> &nbsp;