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aGeneral reaction conditions: alkene (0.2 mmol), (CnXmCO)2O (1.0 mmol), Selectfluor (0.3 mmol), Fe(acac)3 (0.02 mmol), oxydibenzene (0.1 mmol), isopropanol (0.4 mmol) and CH3CN (0.1 M), N2, blue LEDs, 12-h reaction time. bBlue LEDs, 24-h reaction time. c(CnXmCO)2O (1.4 mmol) instead of (CnXmCO)2O (1.0 mmol), blue LEDs, 36-h reaction time.
