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Cu II Anchored onto the Magnetic Talc: A New Magnetic Nanostructured Catalyst for the One‐Pot Gram‐Scale Synthesis of 1 H ‐Pyrazolo[1,2‐b]phthalazine‐5,10‐dione Derivatives
Author(s) -
Chalaki Samaneh B.,
Akhlaghinia Batool
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202002099
Subject(s) - phthalazine , talc , catalysis , superparamagnetism , materials science , nuclear chemistry , composite number , chemical engineering , nanotechnology , magnetization , chemistry , organic chemistry , metallurgy , composite material , magnetic field , physics , quantum mechanics , engineering
In the present study Cu II anchored onto the magnetic talc (γ‐Fe 2 O 3 / talc /Cu II NPs) was successfully synthesized and characterized by FT‐IR, XRD, TEM, FE‐SEM, EDX, VSM, and ICP‐OES techniques. Structural characterizations reveal that the γ‐Fe 2 O 3 /talc/Cu II NPs are superparamagnetic in nature, structured as a composite with average diameter of about 19–31 nm. The prepared nanostructured catalyst efficiently catalyzed the preparation of 1 H ‐pyrazolo[1,2‐b] phthalazine‐5,10‐diones at the gram scale without the use of the toxic organic solvents. The magnetically separable and environmentally friendly nanostructured catalyst remains quite stable during reaction conditions and reused for at least five recycle runs.