Access to 2,3-Fused Pyrroles via Visible Light Driven Coupling of α‑Azidochalcones with 1/2-Naphthols, or 2‑Hydroxy-1,4-Naphthoquinone

α-Azidochalcones were coupled with 1/2-naphthols or 2-hydroxy-1,4-naphthoquinone using Ru­(bpy)3­(PF6)2 as a photocatalyst under blue LED light irradiation to yield 2,3-fused pyrroles in high yields (68–84%). The overall transformation involves photosensitized decomposition of α-azidochalcones into highly reactive 2H-azirines which are trapped by 1/2-naphthols or 2-hydroxy-1,4-naphthoquinone, leading to the construction of two new C–N and one new C–C bonds