1: With triethylamine; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride in 1,4-dioxane T=80°C; 18 h; 2: 5-bromo-2,4-dimethoxy-pyrimidine; 4,4,5,5-tetramethyl-[1,3,2]dioxaborolane in 1,4-dioxane T=80°C; 48 h;

potassium acetate; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct in N,N-dimethyl-formamide T=100°C; 1 h;

in tetrahydrofuran T=20°C; Molecular sieve;