Summary
Upon direct irradiation with light of wavelengths greater than 300 nm, 2-benzoylthiophene undergoes [2 + 2] cycloadditions withmono- anddi-methylmaleic anhydrides involving the C=C bond of the latter and the benzoyl-substituted thiophene C=C bond.
Zusammenfassung
Aus 2-Benzoylthiophen entstehen unter direkter Bestrahlung mit Licht von Wellenlängen > 300 nm in Anwesenheit von Methylmaleinsäureanhydriden [2 + 2]-Cycloaddukte. Die Photoreaktion erfolgt an den C=C-Bindungen des Thiophenrings und des Anhydrids.
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Rivas, C., Bolivar, R.A., González, R. et al. Photocycloaddition of 2-benzoylthiophene to methylmaleic anhydrides. Monatsh Chem 127, 529–536 (1996). https://doi.org/10.1007/BF00807078
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DOI: https://doi.org/10.1007/BF00807078