1: With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 1 h; 2: With boric acid trimethyl ester in tetrahydrofuran; hexane T=-78 - 20°C; 3 h; 3: With hydrogenchloride in tetrahydrofuran; hexane; water 1 h;

1: 2-bromo-9,10-diphenylanthracene With n-butyllithium in tetrahydrofuran T=-78°C; 1 h; 2: boric acid trimethyl ester in tetrahydrofuran T=20°C; 4 h; 3: With hydrogenchloride in tetrahydrofuran; water

1: 2-bromo-9,10-diphenylanthracene With n-butyllithium in tetrahydrofuran; hexane T=-80°C; 2: boron triethoxide in tetrahydrofuran; hexane 2 h; 3: With hydrogenchloride; water in tetrahydrofuran; hexane 12 h;

1: 2-bromo-9,10-diphenylanthracene With n-butyllithium in tetrahydrofuran; hexane T=-78 - 0°C; 1 h; 2: boric acid trimethyl ester in tetrahydrofuran; hexane T=-78 - 20°C; 3 h; 3: With hydrogenchloride; water in tetrahydrofuran; hexane 1 h;

1.1: toluene; diethyl ether; anhydrous butyl ether / 6 h / -20 °C 2.1: potassium iodide; acetic acid; NaH2PO2 / 6 h / Reflux 3.1: n-butyllithium / hexane; tetrahydrofuran / -80 °C 3.2: 2 h 3.3: 12 h View Scheme

1.1: potassium iodide; acetic acid; NaH2PO2 / 6 h / Reflux 2.1: n-butyllithium / hexane; tetrahydrofuran / -80 °C 2.2: 2 h 2.3: 12 h View Scheme