1: 1-propenylmagnesium bromide With boric acid trimethyl ester in tetrahydrofuran; diethyl ether T=-78°C; 1 h; 2: With hydrogenchloride 0.5 h; cooling; 3: oct-1-ene With Grubb's 2nd generation catalyst in dichloromethane olefin cross-metathesis; 12 h; Heating; Title compound not separated from byproducts;

chlorine in dichloromethane 1.) 0 deg C, 10 min, 2.) 20 deg C, 20 min;