in water T=40°C;

1: tris-(dibenzylideneacetone)dipalladium(0); dicyclohexyl(2',6'-diisopropoxy-[1,1'-biphenyl]-2-yl)phosphine; potassium phosphate / 1,4-dioxane / 1 h / 120 °C / |Inert atmosphere; |Microwave irradiation 2: hydrogenchloride / tetrahydrofuran / 20 °C / |Inert atmosphere View Scheme

1: 24 h / 120 °C / |Inert atmosphere 2: tert.-butyl lithium; carbon tetrabromide / -78 °C 3: tris-(dibenzylideneacetone)dipalladium(0); dicyclohexyl(2',6'-diisopropoxy-[1,1'-biphenyl]-2-yl)phosphine; potassium phosphate / 1,4-dioxane / 1 h / 120 °C / |Inert atmosphere; |Microwave irradiation 4: hydrogenchloride / tetrahydrofuran / 20 °C / |Inert atmosphere View Scheme

1: tris-(dibenzylideneacetone)dipalladium(0); dicyclohexyl(2',6'-diisopropoxy-[1,1'-biphenyl]-2-yl)phosphine; potassium phosphate / 1,4-dioxane / 1 h / 120 °C / |Inert atmosphere; |Microwave irradiation 2: hydrogenchloride / tetrahydrofuran / 20 °C / |Inert atmosphere View Scheme

1: tetrahydrofuran / 20 °C / |Inert atmosphere 2: acetic acid; iron / 3 h / 90 °C / |Inert atmosphere 3: 24 h / 120 °C / |Inert atmosphere 4: tert.-butyl lithium; carbon tetrabromide / -78 °C 5: tris-(dibenzylideneacetone)dipalladium(0); dicyclohexyl(2',6'-diisopropoxy-[1,1'-biphenyl]-2-yl)phosphine; potassium phosphate / 1,4-dioxane / 1 h / 120 °C / |Inert atmosphere; |Microwave irradiation 6: hydrogenchloride / tetrahydrofuran / 20 °C / |Inert atmosphere View Scheme

1: tetrafluoroboric acid / toluene / 120 °C / |Inert atmosphere 2: tetrahydrofuran / 20 °C / |Inert atmosphere 3: acetic acid; iron / 3 h / 90 °C / |Inert atmosphere 4: 24 h / 120 °C / |Inert atmosphere 5: tert.-butyl lithium; carbon tetrabromide / -78 °C 6: tris-(dibenzylideneacetone)dipalladium(0); dicyclohexyl(2',6'-diisopropoxy-[1,1'-biphenyl]-2-yl)phosphine; potassium phosphate / 1,4-dioxane / 1 h / 120 °C / |Inert atmosphere; |Microwave irradiation 7: hydrogenchloride / tetrahydrofuran / 20 °C / |Inert atmosphere View Scheme

1: tert.-butyl lithium; carbon tetrabromide / -78 °C 2: tris-(dibenzylideneacetone)dipalladium(0); dicyclohexyl(2',6'-diisopropoxy-[1,1'-biphenyl]-2-yl)phosphine; potassium phosphate / 1,4-dioxane / 1 h / 120 °C / |Inert atmosphere; |Microwave irradiation 3: hydrogenchloride / tetrahydrofuran / 20 °C / |Inert atmosphere View Scheme