Cu(II)‐supported graphene quantum dots modified NiFe2O4: A green and efficient catalyst for the synthesis of 4H‐pyrimido[2,1‐b]benzothiazoles in water

NiFe2O4 nanoparticles are modified by graphene quantum dots (GQDs) and utilized to stabilize the Cu(II) nanoparticles as a novel magnetically retrievable catalytic system (Cu(II)/GQDs/NiFe2O4) for green formation of 4H‐pyrimido[2,1‐b]benzothiazoles. The prepared catalyst can be isolated assisted by...

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Bibliographic Details
Published inJournal of the Chinese Chemical Society (Taipei) Vol. 68; no. 1; pp. 121 - 130
Main Authors Khazenipour, Khatereh, Moeinpour, Farid, Mohseni‐Shahri, Fatemeh S.
Format Journal Article
LanguageEnglish
Published Weinheim Wiley‐VCH Verlag GmbH & Co. KGaA 01.01.2021
Wiley
Subjects
4H‐pyrimido[2,1‐b]benzothiazoles
Chemistry
Chemistry, Multidisciplinary
graphene quantum dots
nanocatalyst
NiFe2O4
Physical Sciences
Science & Technology
BENZOTHIAZOLE
NiFe2O4
NANOPARTICLES
RECOVERABLE NANO-CATALYST
REMOVAL
CARBON
1-b]benzothiazoles
graphene quantum dots
nanocatalyst
IN-VITRO ANTITUMOR
4H-pyrimido
DERIVATIVES
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Summary:NiFe2O4 nanoparticles are modified by graphene quantum dots (GQDs) and utilized to stabilize the Cu(II) nanoparticles as a novel magnetically retrievable catalytic system (Cu(II)/GQDs/NiFe2O4) for green formation of 4H‐pyrimido[2,1‐b]benzothiazoles. The prepared catalyst can be isolated assisted by an outer magnet and recovered for five courses without significant reduction in its efficiency. The as‐prepared magnetic heterogeneous nanocomposite was characterized by UV–Vis, FT‐IR, XRD, EDS, VSM, TEM, and ICP. Performing the reactions in environmentally friendly and affordable conditions (water), the low catalyst percentage, high yield of products, short reaction times, and easy workup are the merits of this protocol. NiFe2O4 nanoparticles are modified by graphene quantum dots (GQDs) and utilized to stabilize the Cu(II) nanoparticles as a novel magnetically retrievable catalytic system (Cu(II)/GQDs/NiFe2O4) for green formation of 4H‐pyrimido[2,1‐b] benzothiazoles. Performing the reactions in environmentally friendly and affordable conditions (water), the low catalyst percentage, high yield of products, short reaction times, and easy workup are the merits of this protocol.
Bibliography:Funding information
Islamic Azad University
ISSN:0009-4536
2192-6549
DOI:10.1002/jccs.202000213