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. 2024 Jan 18;20:101–117. doi: 10.3762/bjoc.20.11

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Copyright © 2024, Schlosser et al.

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Changes of the absorption spectra during the irradiation of 2a in MeCN for 16 min (A), 2b in MeCN for 4 min (B), and 2b in H₂O/MeCN 49:1 for 6 min (C) (c = 20 µM, λ_ex > 220 nm, irradiated in a cuvette). Blue: spectrum of the starting material before irradiation; red: spectrum at the end of the irradiation.