{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["10"],"submitter":["Mohamadpour F"],"pubmed_abstract":["The Knoevenagel-Michael cyclocondensation of malononitrile, aryl aldehydes, and resorcinol was used as a multicomponent green tandem strategy for the metal-free synthesis of 2-amino-4<i>H</i>-chromene scaffolds. Through a visible-light-induced process, the photo-excited state functions derived from Na<sub>2</sub> eosin Y were used as direct hydrogen atom transfer catalysts in aqueous ethanol at ambient temperature. The purpose of this study was to examine the further use of an organic dye that does not contain metal and is inexpensive and commercially available. Na<sub>2</sub> eosin Y is synthesized by photochemical means using the least amount of catalyst, which results in excellent yields, energy efficiency, and environmental friendliness, high atom economy, time-saving features, and eas"],"journal":["Frontiers in chemistry"],"pagination":["880257"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9218595"],"repository":["biostudies-literature"],"pubmed_title":["New Role for Photoexcited Na<sub>2</sub> Eosin Y <i>via</i> the Direct Hydrogen Atom Transfer Process in Photochemical Visible-Light-Induced Synthesis of 2-Amino-4<i>H</i>-Chromene Scaffolds Under Air Atmosphere."],"pmcid":["PMC9218595"],"pubmed_authors":["Mohamadpour F"],"additional_accession":[]},"is_claimable":false,"name":"New Role for Photoexcited Na<sub>2</sub> Eosin Y <i>via</i> the Direct Hydrogen Atom Transfer Process in Photochemical Visible-Light-Induced Synthesis of 2-Amino-4<i>H</i>-Chromene Scaffolds Under Air Atmosphere.","description":"The Knoevenagel-Michael cyclocondensation of malononitrile, aryl aldehydes, and resorcinol was used as a multicomponent green tandem strategy for the metal-free synthesis of 2-amino-4<i>H</i>-chromene scaffolds. Through a visible-light-induced process, the photo-excited state functions derived from Na<sub>2</sub> eosin Y were used as direct hydrogen atom transfer catalysts in aqueous ethanol at ambient temperature. The purpose of this study was to examine the further use of an organic dye that does not contain metal and is inexpensive and commercially available. Na<sub>2</sub> eosin Y is synthesized by photochemical means using the least amount of catalyst, which results in excellent yields, energy efficiency, and environmental friendliness, high atom economy, time-saving features, and eas","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022","modification":"2025-04-22T15:37:27.174Z","creation":"2024-11-20T06:55:50.187Z"},"accession":"S-EPMC9218595","cross_references":{"pubmed":["35755253"],"doi":["10.3389/fchem.2022.880257"]}}