Synthesis and Photochromic Properties of 3,3-Diphenyl-3H-Naphthopyran:Design and Teaching Practice of a Comprehensive Organic Experiment
A comprehensive organic experiment,focusing on the synthesis and photochromic properties of 3,3-diphenyl-3H-benzo[f]chromene(3H-NP),was developed by incorporating Claisen rearrangement,photochemical reactions,and solid-phase synthesis.The product was synthesized using both liquid-phase and solid-phase methods,and the impact of different synthetic approaches on yield was compared.The photochromic properties of the product were investigated using UV-Vis absorption spectroscopy.By integrating the scientific research process into teaching practice,this experiment aims to foster scientific literacy and innovation skills among undergraduate students.
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