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Synthesis and characterization of Ni(II) and Cu(II) complexes based on quercetin Schiff base and using them as heterogeneous catalysts in Henry reaction

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Title Synthesis and characterization of Ni(II) and Cu(II) complexes based on quercetin Schiff base and using them as heterogeneous catalysts in Henry reaction
 
Creator Moodi, Zahra
Bagherzade, Ghodsieh
 
Subject Schiff base complex
Quercetin
Heterogenous catalysis
Henry reaction
 
Description 136-143
Quercetin is a dietary flavonoid, which with its specialized structure can form Schiff bases and their metal complexes.
Schiff base ligand has been synthesized through the condensation of quercetin and ethanolamine. In this paper, two new
metal complexes involving the Schiff base ligand have been prepared by a simple method at room temperature. SBL-Cu and
SBL-Ni have been characterized by elemental analysis, ICP, UV-visible, and FT-IR studies. The activity of the synthesized
complexes as a heterogeneous catalyst has been assessed in Henry reaction. The complexes have shown high catalytic
performance in Henry reaction. However, SBL-Cu had better catalytic activity than SBL-Ni. These catalysts can be recycled
and reused five times without a significant reduction in the activity. A series of benzaldehyde derivatives have been applied
in the optimized Henry reaction to investigate the effect of the substituent group on the yield of the reaction. As expected,
benzaldehydes containing electron-withdrawing group have a higher yield in Henry reaction.
 
Date 2022-02-16T07:09:34Z
2022-02-16T07:09:34Z
2022-02
 
Type Article
 
Identifier 2583-1321 (Online); 0019-5103 (Print)
http://nopr.niscair.res.in/handle/123456789/59195
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJC Vol.61(02) [February 2022]