Organophotocatalytic functionalization of 3,4-dihydroquinoxalin-2-ones with isoxazol-5-amines using visible light

An organophotocatalytic strategy for the functionalization of
3,4-dihydroquinoxalin-2-ones with isoxazol-5-amines is reported. Using
commercially available organophotocatalysts under visible light
irradiation and mild reaction conditions, a series of 22 derivatives have
been synthesized. This process was also scaled up to 1 mmol, revealing the
formation of an isoxazol-2-one derivative as byproduct. The mechanism of
this transformation has also been investigated through steady-state
luminescence quenching experiments, among other techniques. The dataset
contains 1H NMR, 13C NMR and DEPT spectra for the new compounds
prepared in the associated manuscript.