Fig. 4: The other scope of the β-carboxylation reaction.

Reaction conditions: undivided cell, Mg plate anode (10 mm × 20 mm × 0.5 mm), C plate cathode (10 mm × 20 mm × 1.0 mm), 4 (0.1 mmol), TEAClO₄ (0.2 mmol), CO₂ (1 atm), CH₃CN (3.0 mL), 4 mA, 6 h.