1: 1-n-butyl-3-iodobicyclolt;1.1.1gt;pentane With tert.-butyl lithium; zinc(II) chloride in tetrahydrofuran T=25°C; Metallation; 1 h; 2: p-bromophenyl bromide With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride in tetrahydrofuran T=25°C; Substitution; 24 h; Further stages.;

1: 1-n-butyl-3-iodobicyclolt;1.1.1gt;pentane With tert.-butyl lithium; zinc(II) chloride in tetrahydrofuran T=25°C; Metallation; 1 h; 2: 4-(trimethylsilyl)bromobenzene With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride in tetrahydrofuran T=25°C; Substitution; 24 h; Further stages.;