1: With hydrogen iodide; sodium iodide in water T=50°C; 24 h; 2: With sodium hydrogencarbonate in water

1: With CdCl2*TMEDA; 2,2,6,6-tetramethylpiperidinyl-lithium in tetrahydrofuran T=20°C; 2 h; 2: With iodine in tetrahydrofuran

1: With 2,2,6,6-tetramethyl-piperidine; n-butyllithium; N,N,N',N,-tetramethylethylenediamine; zinc(II) chloride in tetrahydrofuran; hexane 2 h; Heating; 2: With iodine in tetrahydrofuran; hexane Further stages.;

2,2,6,6-tetramethylpiperidinyl-lithium; iodine in tetrahydrofuran; hexane 1.) -75 deg C, 6 min, 2.) -75 deg C, 40 min;

tetrakis(triphenylphosphine) palladium(0); sodium carbonate in toluene T=120°C; Suzuki cross-coupling;