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Tapioca Cellulose Based Copper Nanoparticles for Chemoselective N-Alkylation.

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|April 10, 2018

Summary

Researchers developed cellulose-supported poly(hydroxamic acid) copper nanoparticles from tapioca root. This novel bio-heterogeneous catalyst efficiently catalyzes N-alkylation reactions with high yields and excellent reusability.

Keywords:

N-Alkylation Tapioca Cellulose Poly(methyl acrylate)Poly(hydroxamic acid)Copper Nanoparticles αβ-Unsaturated Compounds

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Area of Science:

Materials Science
Catalysis
Green Chemistry

Background:

Biomaterials are crucial supports for heterogeneous catalysts.
Tapioca root offers an abundant source for biopolymer synthesis.

Purpose of the Study:

To synthesize and characterize cellulose-supported poly(hydroxamic acid) copper nanoparticles (CuN@PHA) using tapioca root.
To evaluate the catalytic efficiency of CuN@PHA in N-alkylation reactions.

Main Methods:

Synthesis of cellulose-supported CuN@PHA from tapioca biopolymer.
Characterization using FTIR, UV-Vis, FESEM, XPS, ICP-AES, and TEM.
Catalytic testing of N-alkylation of aliphatic amines with α,β-unsaturated compounds.

Main Results:

Successful synthesis and characterization of CuN@PHA.
High catalytic activity in N-alkylation, achieving yields up to 95%.
Excellent reusability of the catalyst over multiple cycles with sustained activity.

Conclusions:

Tapioca-derived cellulose is an effective support for poly(hydroxamic acid) copper nanoparticles.
The CuN@PHA catalyst demonstrates high efficiency, stability, and reusability for N-alkylation.
This study highlights a sustainable approach to heterogeneous catalysis using abundant biomaterials.