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- Title
Photochemical synthesis of pyrano[2,3-d]pyrimidine scaffolds using photoexcited organic dye, Na<sub>2</sub> eosin Y as direct hydrogen atom transfer (HAT) photocatalyst via visible light-mediated under air atmosphere.
- Authors
Mohamadpour, Farzaneh
- Abstract
The Knoevenagel-Michael cyclocondensation of barbituric acid/1,3-dimethylbarbituric acid, malononitrile, and arylaldehyde derivatives was used to construct a multicomponent green tandem method for the metal-free synthesis of pyrano[2,3-d]pyrimidine scaffolds. At room temperature in aqueous ethanol, photo-excited state functions generated from Na2 eosin Y were employed as direct hydrogen atom transfer (HAT) catalysts by visible light mediated in the air atmosphere. This research looks towards expanding the use of a non-metallic organic dye that is both affordable and readily available. Because of its good yields, energy-effectiveness, high atom economy, time-saving qualities of the reaction, and operational simplicity, Na2 eosin Y is photochemically produced with the least amount of a catalyst. As a result, various ecological and sustainable chemical properties are met. Surprisingly, such cyclization may be carried out on a gram scale, indicating the reaction's potential industrial application.
- Subjects
ABSTRACTION reactions; ORGANIC dyes; PYRIMIDINES; EOSIN; VISIBLE spectra; GENERATING functions; CHEMICAL properties
- Publication
BMC Chemistry, 2023, Vol 17, Issue 1, p1
- ISSN
2661-801X
- Publication type
Article
- DOI
10.1186/s13065-023-00912-7