tris(dibenzylideneacetone)dipalladium(0) chloroform complex; 1,1'-bis-(diphenylphosphino)ferrocene; 1,8-diazabicyclo[5.4.0]undec-7-ene in toluene T=70°C; 3 h;

tris(dibenzylideneacetone)dipalladium(0) chloroform complex; 1,1'-bis-(diphenylphosphino)ferrocene; cesium fluoride in tetrahydrofuran T=70°C; 24 h; Inert atmosphere;

tris(dibenzylideneacetone)dipalladium(0) chloroform complex; 1,1'-bis-(diphenylphosphino)ferrocene; sodium ethanolate in tetrahydrofuran T=70°C; 6 h; Inert atmosphere;

1.1: 2 h / 140 °C / |Inert atmosphere 1.2: 6 h / 20 °C / |Inert atmosphere 2.1: tris(dibenzylideneacetone)dipalladium(0) chloroform complex; 1,1'-bis-(diphenylphosphino)ferrocene; 1,8-diazabicyclo[5.4.0]undec-7-ene / toluene / 3 h / 70 °C View Scheme

1: triethylamine / dichloromethane / 4 h / 0 - 20 °C / |Inert atmosphere 2: tris(dibenzylideneacetone)dipalladium(0) chloroform complex; 1,1'-bis-(diphenylphosphino)ferrocene; sodium ethanolate / tetrahydrofuran / 6 h / 70 °C / |Inert atmosphere View Scheme