Photoinduced reactivity improves production of 1,4-naphthoquinone-based amino benzaldehydes from cyclic amines, highlighting an eco-friendly synthetic route.
A photoinduced ring-opening/oxidation tandem of cyclic amines without an external photocatalyst was developed and provided the corresponding 1,4-naphthoquinone-based amino benzaldehydes in good yields under mild conditions. Investigations indicated that this transformation process is by the tandem oxidation/ring-opening of cyclic amines under visible light (410 nm) irradiation.
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Shi et al. (2025) studied this question.
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