Scheme 2. Scope of sp3 C–H carbonylation. Reaction conditions: 1 (0.3 mmol), Cu(OAc)2 (0.3 mmol), K2S2O8 (0.6 mmol), PhCO2Na (0.15 mmol), Al2O3 (60 mg), DMPU (0.6 mmol), MeNO2 (1.0 mL), 1,4-dioxane (0.9 mL), iPrOH (1.1 mL), 165 °C, 24 h.
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