Abstract
The iminopyrans were synthesized by the CuAAC-MCR approach,the coupling of enaminones,phenyl acetylenes,and sulfonyl,under microwave treatment.The mechanism of the formation of iminopyrans along with amidine has been studied in detail.Experiments to minimize amidine formation were explored,and unfortunately,these experiments were unsuc-cessful.Molar equivalents of enaminones,phenyl acetylenes,and sulfonyl were optimized to increase the yield of iminopyr-an.Fluorescent properties of iminopyrans were characterized using Frontier molecular orbital analysis,UV absorption,and emission studies.
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