To a solution of [Pd(η ³ -C ₃ H ₅ )Cl] ₂ (0.9 mg, 0.0025 mmol), n -tributyl phosphine (1 mL, 0.005 mmol), and rac -1,3-diphenyl-2-enyl acetate ( 1 , 25.2 mg, 0.1 mmol) in mesitylene (0.5 mL) were successively added Rb ₂ CO ₃ (184.7 mg, 0.8 mmol), chiral ammonium salt VIII (6.1 mg, 0.01 mmol), and malonate (2, 0.2 mmol) at room temperature. After being stirred vigorously for 48 h, the reaction mixture was diluted with ethyl acetate (20 mL). The organic phase was washed with water (2 × 10 mL) and brine (10 mL). The extract was dried over MgSO ₄ , filtered, and concentrated in vacuo. The crude product was purified by column chromatography (silica gel, ethyl acetate : benzene : hexane = 1:1:12) to give alkylated products 3 .