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Beilstein J. Org. Chem. 2023, 19, 778–788, doi:10.3762/bjoc.19.58
Graphical Abstract
Scheme 1: Photochemical behavior of terarylenes containing an allomaltol fragment.
Scheme 2: Synthesis of starting compounds 9. Reaction conditions: 13 (1 mmol), NH2CN (14, 3 mmol, 0.13 g), Et...
Scheme 3: Proposed mechanism for the formation of compounds 9.
Scheme 4: Synthesis of methylated derivatives 10. Reaction conditions: 9 (1 mmol), MeI (3 mmol, 0.43 g), K2CO3...
Figure 1: 1H NMR monitoring of the photoreaction of compound 10a under UV irradiation (365 nm) in DMSO-d6 sol...
Figure 2: The crystal structure of compound 11a (one of two polymorph modifications; p = 50%), CCDC 2248033.
Scheme 5: Photochemical synthesis of compounds 11 and 12.
Scheme 6: Proposed mechanism for the studied photoreaction.
Scheme 7: Synthesis of compounds 11g–j starting from pyrimidines 9. Reaction conditions: 9 (0.5 mmol), DMF (1...
Figure 3: One of crystallographically unique molecules of 11g (p = 50%), CCDC 2248035.
Scheme 8: Synthesis of photoproducts 12. Reaction conditions: method A) 10 (0.5 mmol), DMF (15 mL) irradiatio...