palladium diacetate; caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'- binaphthyl in 1,4-dioxane T=80°C; Buchwald-Hartwig Coupling; 4 h; Sealed tubeInert atmosphere;

in 1-methyl-pyrrolidin-2-one T=190°C; 0.5 h; Microwave irradiation;