pyridine in dichloromethane T=0 - 20°C;

potassium phosphate; copper(l) iodide; triphenylphosphine in 1,4-dioxane T=110°C; 24 h;

caesium carbonate; 2-(dicyclohexylphosphino)-2',4',6'-tri-i-propyl-1,1’-biphenyl; tris(dibenzylideneacetone)dipalladium (0) in acetonitrile T=120°C; 5 h;