Substrate scope of α,β-unsaturated acceptors a,b. a Reaction conditions: substrate 2 (0.2 mmol), B2(pin)2
1 (1.2 equiv.), CP@Cu NPs (1 mol % Cu loading), acetone (1.6 mL), H2O (0.4 mL), room temperature, air, 12 h; b Isolated yields were listed; c Gram scale synthesis.