TY - JOUR
T1 - Development of magnetic Fe3O4-chitosan immobilized Cu(II) Schiff base catalyst
T2 - An efficient and reusable catalyst for microwave assisted one-pot synthesis of propargylamines via A3 coupling
AU - Hasan, Kamrul
AU - Joseph, Reshma G.
AU - Patole, Shashikant P.
AU - Al-Qawasmeh, Raed A.
N1 - Funding Information:
This research was funded by the Research Institute of Science and Engineering (RISE), University of Sharjah , Sharjah, United Arab Emirates, competitive grant number 1902144082 and 21021440108 .
Funding Information:
This research was funded by the Research Institute of Science and Engineering (RISE), University of Sharjah, Sharjah, United Arab Emirates, competitive grant number 1902144082 and 21021440108.KH thanks the Advanced Materials Research Center of University of Sharjah, Sharjah, United Arab Emirates, for X-ray diffraction, FE-SEM, XPS and FE-EDS analysis. KH also thanks to the Research Institute of Medical & Health Sciences (SIMHR) University of Sharjah, Sharjah, United Arab Emirates, for ICP-OES analysis.
Publisher Copyright:
© 2022
PY - 2023/1
Y1 - 2023/1
N2 - A novel heterogeneous catalyst (Fe3O4@CS@Schiffbase@Cu) is developed by generating the Cu(II) Schiff base complex on the Fe3O4-chitosan surface. The structural and morphological characteristics of the catalyst is confirmed by all physicochemical techniques. A low catalyst loading (1.1 mol% Cu) of the immobilized Cu(II) Schiff base complex shows its catalytic activity for A3 coupling reaction of Aldehyde, Alkyne, and Amines under microwave irradiation. The catalyst was proven very active for a wide variety of propargylamines syntheses using different substituted aromatic aldehydes, secondary amines, and phenylacetylene under optimized conditions. The recyclability of the catalyst was efficient even after six cycles with a 95% efficiency.
AB - A novel heterogeneous catalyst (Fe3O4@CS@Schiffbase@Cu) is developed by generating the Cu(II) Schiff base complex on the Fe3O4-chitosan surface. The structural and morphological characteristics of the catalyst is confirmed by all physicochemical techniques. A low catalyst loading (1.1 mol% Cu) of the immobilized Cu(II) Schiff base complex shows its catalytic activity for A3 coupling reaction of Aldehyde, Alkyne, and Amines under microwave irradiation. The catalyst was proven very active for a wide variety of propargylamines syntheses using different substituted aromatic aldehydes, secondary amines, and phenylacetylene under optimized conditions. The recyclability of the catalyst was efficient even after six cycles with a 95% efficiency.
KW - A coupling
KW - Copper catalyst
KW - Magnetic-chitosan
KW - Recyclable
KW - Surface modification
UR - http://www.scopus.com/inward/record.url?scp=85144472020&partnerID=8YFLogxK
U2 - 10.1016/j.catcom.2022.106588
DO - 10.1016/j.catcom.2022.106588
M3 - Article
AN - SCOPUS:85144472020
SN - 1566-7367
VL - 174
JO - Catalysis Communications
JF - Catalysis Communications
M1 - 106588
ER -