triethyl borane; tri-n-butyl-tin hydride in hexane; toluene T=20°C; 12 h;

1: (E)-1-Bromo-1-dodecene With lithium dibutyl(isopropyl)magnesate in tetrahydrofuran; hexane T=-78°C; Metallation; 1 h; 2: chloro-trimethyl-silane in tetrahydrofuran; hexane T=0°C; Substitution; Silylation; 1 h;

1: (E)-1-Bromo-1-dodecene; lithium dibutyl(isopropyl)magnesate in tetrahydrofuran; hexane T=0°C; 0.5 h; 2: chloro-trimethyl-silane With water-d2 in tetrahydrofuran; hexane Further stages.;