Microwave‐assisted synthesis of benzo[4,5]imidazo[1,2‐a]pyrimidines and pyrano[4,3‐b]pyrans catalyzed by L‐glutamine functionalized magnetic nanoparticles in water:ethanol mixture
Aiborlang Thongni,
Rishanlang Nongkhlaw,
Chayan Pandya
et al.
Abstract:In this work, we report an effective, one‐pot syntheses of benzo[4,5]imidazo[1,2‐a]pyrimidine and pyrano[4,3‐b]pyran derivatives using L‐glutamine functionalized nanoparticles (Fe3O4@SiO2@L‐glutamine NPs) under microwave irradiation. The organo‐nanocatalyst underwent characterization through diverse techniques, including FT‐IR, p‐XRD, SEM, TEM, EDX, XPS, TGA, and VSM. Microwave irradiation and multicomponent reactions synergistically yield excellent product yields (≈80%–95%) in shorter reaction times (≈6–15 mi… Show more
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