(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate in dimethyl sulfoxide T=80°C; 19 h; Inert atmosphere;

1: 2-bromo-9,9-dioctyl-9H-fluorene With n-butyllithium in tetrahydrofuran; hexane T=-78°C; Metallation; 2: 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane in tetrahydrofuran; hexane T=20°C; Substitution; 24 h; Further stages.;

1: 2-bromo-9,9-dioctyl-9H-fluorene With n-butyllithium in tetrahydrofuran 2: iPrB(pinacolate) in tetrahydrofuran

1.1: 63 percent / aq. NaOH; tetrabutylammonium bromide / toluene / 4 h / 60 °C 2.1: n-BuLi / hexane; tetrahydrofuran / -78 °C 2.2: 67 percent / hexane; tetrahydrofuran / 24 h / 20 °C View Scheme

1: tetraethylammonium bromide / dimethyl sulfoxide 2: potassium acetate / dimethyl sulfoxide View Scheme