1: With 1,1'-bis-(diphenylphosphino)ferrocene; tris-(dibenzylideneacetone)dipalladium(0); triethylamine in acetonitrile 5 h; RefluxInert atmosphere; 2: With 1,8-diazabicyclo[5.4.0]undec-7-ene in acetonitrile 3 h; RefluxInert atmosphere;

tetrakis(triphenylphosphine) palladium(0); triethylamine in acetonitrile 12 h; RefluxInert atmosphere;