NaCH(CO2Et)2; bis-diphenylphosphinoethane; bis(dibenzylideneacetone)-palladium(0) in dimethyl sulfoxide T=100°C; 16 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

NaCH(CO2Et)2; bis-diphenylphosphinoethane; bis(dibenzylideneacetone)-palladium(0) in dimethyl sulfoxide T=100°C; 16 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;