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چکیده
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In this study, a new heterogeneous nanocatalyst Cu@Zeo-Arg was prepared by functionalizing NaY nanozeolite with arginine and then by immobilizing copper metal ions on its surface. The formation of the synthesized nanocatalyst has been thoroughly investigated and confrmed by various analyses such as TGA, FT-IR, CHN, BET, XRD, SEM, ICP, DLS, and EDS mapping. The prepared nanocatalyst has special advantages such as easy separation, high stability, recyclability, and reusability. Also, the catalyst was recycled and reused for up to seven consecutive runs without a noticeable decrease in activity. The nanocatalyst activity was investigated in synthesizing 2-amino-4H-pyrans. These compounds were synthesized in good to high yields (72–95%) in ethanol as a green solvent at room temperature within 1 h. The structure of the products was identifed and confrmed by measuring the melting points and their 1H NMR, 13C NMR, and FT-IR spectral data.
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