Fig. 5From: Photochemical synthesis of pyrano[2,3-d]pyrimidine scaffolds using photoexcited organic dye, Na2 eosin Y as direct hydrogen atom transfer (HAT) photocatalyst via visible light-mediated under air atmosphereThe reactions of benzaldehyde (1, 1Â mmol), malononitrile (2, 1Â mmol), barbituric acid (3, 1Â mmol), and are crucial control tests for comprehending the reactions' mechanismBack to article page