1: ortho-bromo-phenol With n-butyllithium in tetrahydrofuran; hexane
T=-78°C;
2: chloro-trimethyl-silane in tetrahydrofuran; hexane
3: With tetrabutyl ammonium fluoride in tetrahydrofuran; hexane
1: ortho-bromo-phenol With tert.-butyl lithium in tetrahydrofuran; pentane
T=-78°C; 0.5 h;
2: With zinc(II) chloride in tetrahydrofuran; pentane
T=20°C; 1 h;
3: 4-bromo-1-iodobenzene With tetrakis(triphenylphosphine) palladium(0) in tetrahydrofuran; pentane
T=20°C; 24 h; Further stages.;
