New Role for Photoexcited Na2 Eosin Y via the Direct Hydrogen Atom Transfer Process in Photochemical Visible-Light-Induced Synthesis of 2-Amino-4H-Chromene Scaffolds Under Air Atmosphere
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-4H-chromene scaffolds. Through a visible-light-induced process, the photo-excited state functions derived from Na2 eos...
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Format: | Article |
Language: | English |
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Frontiers Media S.A.
2022-06-01
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Series: | Frontiers in Chemistry |
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Online Access: | https://www.frontiersin.org/articles/10.3389/fchem.2022.880257/full |