NaCH(CO2Et)2; bis-diphenylphosphinoethane; bis(dibenzylideneacetone)-palladium(0) in dimethyl sulfoxide T=100°C; 18 h;

NaCH(CO2Et)2; bis-diphenylphosphinoethane; bis(dibenzylideneacetone)-palladium(0) in dimethyl sulfoxide T=100°C; 24 h; variation of allylating agents, catalyst, and reaction time.; Product distribution;