Biosynthesis of Copper Nanoparticles Supported on Zeolite Y and its Application in Catalytic C‐N Cross Coupling Reactions between Amines and Aryl halides

Abstract

A biosynthesis of Copper Nanoparticles supported on Zeolite Y and its application as efficient, reusable, heterogeneous catalyst in C−N cross coupling reactions between amines and aryl halides are reported. The biosynthesis of CuNPs/Zeolite Y was achieved by the reduction of CuSO4.5H2O with the lemon juice (without peal) and encapsulated into the Zeolite Y in a single step. In this biosynthetic method, the ascorbic acid present in the lemon juice acted as a reducing agent for CuSO4.5H2O. The CuNPs/Zeolite Y was characterized using UV‐Vis, powder XRD, FT‐IR, HR SEM, EDS and TGA. The average size of the CuNPs are found to be 50 nm and has large surface area for the efficient catalysis. The new catalyst is effect in catalyzing the C−N cross coupling reaction between amines and aryl halides (yield ranging from 89% to 95% depends on amine and aryl halide used). The catalyst can be recovered from the reaction mixture by simple procedure. The recovered catalyst is found to be active in catalyzing the coupling reaction even after five runs.

Fe3O4@Zeolite‐Y Functionalized with N‐Methylimidazolium Ionic Liquid: Design and Performance as a New Recyclable and Magnetically Nanocatalyst in the Three‐Component Synthesis of N‐Heterocyclic‐1,3‐thiazolidinones

“…The supporting information contains the detailed process for the synthetic methodology of 1-MeIm IL@ZY-Fe 3 O 4 , characterization techniques, spectroscopic data of all synthesized compounds and 1 H NMR, 13 C NMR and Mass analysis.…”

“…[3][4][5] In addition, zeolite-Y or its loaded with transition metals is increasingly an ideal support for homogeneous catalysts such as acidic liquid groups, ionic liquids, [6][7][8][9] bi-functional magnetic nanocatalysts, [10] bi-functional core-shell molecular sieves [11] and efficient catalysts have been used in the fabrication of organic and heterocyclic compounds. [12][13][14] To the best of our knowledge, the use of imidazolium chloride ionic liquid on the surface of magnetic zeolite-Y as an efficient multifunctional nanocatalyst in the synthesis of N-benzimidazole or benothiazole thiazolidines has not been reported yet.…”

“…Zeolites are aluminosilicate structures with very small pores, which have advantages such as suitable acidic properties, cheap price, insoluble in all organic solvents, high thermal stability, cation exchange capability, less or no corrosion, and compatibility with the environment, have been used as a catalyst in many reactions [3–5] . In addition, zeolite‐Y or its loaded with transition metals is increasingly an ideal support for homogeneous catalysts such as acidic liquid groups, ionic liquids, [6–9] bi‐functional magnetic nanocatalysts, [10] bi‐functional core‐shell molecular sieves [11] and efficient catalysts have been used in the fabrication of organic and heterocyclic compounds [12–14] . To the best of our knowledge, the use of imidazolium chloride ionic liquid on the surface of magnetic zeolite‐Y as an efficient multifunctional nanocatalyst in the synthesis of N ‐benzimidazole or benothiazole thiazolidines has not been reported yet.…”

Recent advances in the application of nanocatalysts in C‐N coupling reactions

“…In 2019, Pandian et al [ 208 ] reported the green synthesis of Cu NPs through the reduction of CuSO 4 .5H 2 O with the lemon juice (without peal) and their immobilization on Zeolite Y as a support (and their encapsulation into the Zeolite Y) in a single step. In this biosynthetic approach, the ascorbic acid present in the lemon juice was used as a reductant for CuSO 4 .5H 2 O.…”

Nano BEA zeolite catalysts for the selective catalytic cracking of n-dodecane to light olefins

“…Zeolites are crucial solid catalysts that have been utilized in several types of reactions such as cracking, 5,12–18 isomerization, 19–21 alkylation, 22 combustion, cross-coupling, 23 oligomerization, 24 and more. 25–31 Numerous zeolitic materials have been proven to have superior activity in the cracking reaction.…”