Table 2. Investigation on various 1,3-dicarbonyl compounds for controllable C–C cleavage reactions.

^aConditions: reactions were carried out using 1,3-dicarbonyl compounds (0.2 mmol), phenyl(pyridin-2-yl)methanamine (0.25 mmol), I₂ (0.6 mmol) and H₂O (0.6 mmol) in 2 mL of DMSO and stirred at 75 °C for 6 h.

^bReactions were carried out using 1,3-dicarbonyl compounds (0.3 mmol), phenyl(pyridin-2-yl)methanamine (0.2 mmol), I₂ (0.3 mmol) and H₂O (0.6 mmol) in 2 mL of DMSO and stirred at 120 °C for 2 h.