1: decanoic acid methyl ester With diisobutylaluminium hydride in diethyl ether; hexane T=-78°C; Reduction; 2: C42H38P2 in tetrahydrofuran; diethyl ether; hexane T=-78 - 20°C; Wittig reaction; 3: acrolein in tetrahydrofuran; diethyl ether; hexane T=-78 - 20°C; Wittig reaction; 0.5 h; Further stages.;

1: Decanaldehyde; C42H38P2 in tetrahydrofuran T=-78 - 0°C; Wittig reaction; 0.5 h; 2: acrolein in tetrahydrofuran T=-78 - 20°C; Wittig reaction; 0.5 h; Further stages.;