Elisa De Marchi, Alessia Marino, Fabiana Fosso, Natalia Ceccotti Vlas, Davide Piccinino, Eliana Capecchi, Lorenzo Botta, Marcello Crucianelli, Raffaele Saladino
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引用次数: 0
Abstract
The photochemistry of resveratrol with singlet oxygen (1O2) under blue-LED irradiation is explored in the presence of three metal-free porphyrins as photosensitizers. Irradiation at 450 nm yields products of CC bond scission, 6-electron electrocyclic ring closure, and [4 + 2] cycloaddition, including benzaldehydes, 2,4,6-trihydroxyphenanthrene, and resveratrol cyclic endoperoxide. The selectivity of the process is controlled by the structure of the metal-free porphyrin and by the nominal capacity of the blue-LED photon. The scope of the reaction is extended to sustainable heterogeneous photosensitizers produced by immobilization of metal-free porphyrins on lignin, the most abundant polyphenol in nature characterized by beneficial photochemical properties.
ChemPhotoChemChemistry-Physical and Theoretical Chemistry
CiteScore
5.80
自引率
5.40%
发文量
165
期刊介绍：
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