Synthesis and Characterization of Fluorescent Dye 9-Acetyl-8-Hydroxy-4,8-Dimethyl-2H,8H-[2,3-f]Pyranochromen-2-One
A new fluorescent dye 9-acetyl-8-hydroxy-4,8-dimethyl-2H,8H-[2,3-f]pyranochromen-2-one was synthesized by using the condensation reaction between 8-acyl-7-hydroxy-4-methylcoumarin and acetylacetone catalyzed by piperidine.The chemical structure of the synthesized fluorescent dye was confirmed by IR,1H-NMR,13C-NMR and MS.