1: trimethylaluminum; (6R,10R)-6,10,14-trimethyl-pentadec-1-yne With zirconocene dichloride in 1,2-dichloro-ethane 2: 2-chloromethyl-3-methyl-[1,4]-naphthoquinone With tetrakis(triphenylphosphine) palladium(0) in tetrahydrofuran Further stages.;

tetra(n-butyl)ammonium hydroxide in water; toluene 48 h; Irradiation;

n-butyllithium; zirconocene dichloride; triphenylphosphine; nickel dichloride 1.) ClCH2CH2Cl, 0 deg C, 2.) THF, -78 deg C to 0 deg C, 15 min; Yield given. Multistep reaction;