1: trimethylaluminum; (5E,9E)-6,10,14-trimethylpentadeca-5,9,13-trien-1-yne With methyl aluminoxane; rac-ethylenebis(1-indenyl)zirconium(IV) chloride in toluene T=20°C; Negishi carboalumination; 8 h; 2: 2-chloromethyl-5,6-dimethoxy-3-methyl-[1,4]benzoquinone With NiCl2((PPh3)P)2; n-butyllithium in tetrahydrofuran T=-20°C; 2 h;