tris(dibenzylideneacetone)dipalladium(0) chloroform complex; potassium phosphate; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in xylene T=100°C; 72 h;

tris(dibenzylideneacetone)dipalladium(0) chloroform complex; potassium phosphate; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in xylene T=100°C; 72 h;

tris(dibenzylideneacetone)dipalladium(0) chloroform complex; potassium phosphate; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in xylene T=100°C; 64 h; Product distribution; Further Variations:ReagentsSolventsreaction times;

1: 52 percent / DPPB / Pd(OAc)2 / dimethylsulfoxide / 100 °C 2: 91 percent / HSiCl3; PhNMe2 / toluene / Heating View Scheme

tris(dibenzylideneacetone)dipalladium(0) chloroform complex; potassium phosphate; 2-(dicyclohexylphosphino)-2'-methylbiphenyl in toluene T=100°C; 18 h;

tris(dibenzylideneacetone)dipalladium(0) chloroform complex; potassium phosphate; 2-(dicyclohexylphosphino)-2'-methylbiphenyl in xylene T=120°C; 24 h;

tris(dibenzylideneacetone)dipalladium(0) chloroform complex; potassium phosphate; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in xylene T=100°C; 64 h; Product distribution; Further Variations:ReagentsSolventsreaction times;

1.1: tris-(dibenzylideneacetone)dipalladium(0); 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene; potassium phosphate / toluene / 5 h / 100 °C / |Inert atmosphere 2.1: boron tribromide / dichloromethane / -78 - 20 °C 2.2: |Cooling with ice 3.1: pyridine / dichloromethane / 3 h / 0 °C / |Inert atmosphere 4.1: 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene; caesium carbonate; palladium diacetate / toluene / 6 h / 110 °C / |Inert atmosphere View Scheme

potassium phosphate; tris-(dibenzylideneacetone)dipalladium(0); 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in toluene T=100°C; 5 h; Inert atmosphere;