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MnSb 2 O 6 ‐chitosan nanocomposite: An efficient catalyst for the synthesis of coumarins via Pechmann reaction
Author(s) -
Bahramnezhad Baharak,
Ghazanfari Dadkhoda,
Sheikhhosseini Enayatollah,
Akhgar Mohammad Reza,
Ahmadi Sayed Ali
Publication year - 2020
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.3763
Subject(s) - chitosan , chemistry , fourier transform infrared spectroscopy , nanocomposite , scanning electron microscope , catalysis , reagent , antibacterial activity , nuclear chemistry , condensation reaction , chemical engineering , organic chemistry , nanotechnology , materials science , composite material , bacteria , biology , engineering , genetics
In this work, MnSb 2 O 6 ‐chitosan nanocomposites were synthesized and have been employed in Pechmann condensation for the synthesis of coumarin derivatives. MnSb 2 O 6 ‐chitosan nanocomposites were characterized by Fourier transform infrared (FTIR), X‐ray powder diffraction (XRD), scanning electron microscope (SEM), and energy‐dispersive X‐ray spectroscopy (EDX) techniques. The particles of MnSb 2 O 6 ‐chitosan have uniform spheres with sizes that are less than 100 nm. Simplicity, easy work‐up, and short reaction times are advantages of this reaction. Also, we evaluated the antibacterial activity for some of the products, and the result showed significant pharmaceutical activities as antibacterial reagents against Staphylococcus aureus and Escherichia coli .