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Caesium carbonate supported on hydroxyapatite‐encapsulated Ni 0.5 Zn 0.5 Fe 2 O 4 nanocrystallites as a novel magnetically basic catalyst for the one‐pot synthesis of pyrazolo[1,2‐b]phthalazine‐5,10‐diones
Author(s) -
Maleki Behrooz,
Barat Nam Chalaki Samaneh,
Sedigh Ashrafi Samaneh,
Rezaee Seresht Esmail,
Moeinpour Farid,
Khojastehnezhad Amir,
Tayebee Reza
Publication year - 2015
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3288
Subject(s) - catalysis , chemistry , fourier transform infrared spectroscopy , transmission electron microscopy , nuclear chemistry , carbonate , caesium , nanoparticle , infrared spectroscopy , scanning electron microscope , inorganic chemistry , analytical chemistry (journal) , chemical engineering , nanotechnology , materials science , organic chemistry , engineering , composite material
A novel nanomagnetic basic catalyst of caesium carbonate supported on hydroxyapatite‐coated Ni 0.5 Zn 0.5 Fe 2 O 4 magnetic nanoparticles (Ni 0.5 Zn 0.5 Fe 2 O 4 @HAP‐Cs 2 CO 3 ) was prepared. This new catalyst was fully characterized using Fourier transform infrared spectroscopy , transmission and scanning electron microscopy , X‐ray diffraction and vibrating sample magnetometry techniques, and then the catalytic activity of this catalyst was investigated in the synthesis of 1 H ‐pyrazolo[1,2‐b]phthalazine‐5,10‐dione derivatives. Also, Ni 0.5 Zn 0.5 Fe 2 O 4 @HAP‐Cs 2 CO 3 could be reused at least five times without significant loss of activity and could be recovered easily by applying an external magnet. Thus, the developed nanomagnetic catalyst is potentially useful for the green and economic production of organic compounds. Copyright © 2015 John Wiley & Sons, Ltd.