1: 2-Bromofluorene With potassium tert-butylate in tetrahydrofuran T=20°C; 0.166667 h; 2: 2-Methoxyethyl methanesulphonate in tetrahydrofuran T=20°C;

1: 2-Bromofluorene With potassium tert-butylate in DMF (N,N-dimethyl-formamide) T=45°C; 0.333333 h; 2: 1-bromo-2-methoxyethane in DMF (N,N-dimethyl-formamide) T=45 - 80°C;

sodium t-butanolate; tris-(dibenzylideneacetone)dipalladium(0); 2,2'-bis-(diphenylphosphino)-1,1'- binaphthyl in toluene 16 h; Heating / reflux;