Scheme 5. Transformation of carboxamides and phosphoramides. Reaction conditions: amides (0.6 mmol), quinoline (0.2 mmol), and PIFA (0.46 mmol) in DCE (2 mL), irradiated by 2 × 50 W blue LEDs at rt. Yields of isolated products are given. aPIFA (0.46 mmol), added in two portions (the second portion was added after 12 h). bPIFA (0.92 mmol), added in two portions (the second portion was added after 12 h).
