Ghosh, Sujit and Saha, Sankar and Sengupta, Debasish and Chattopadhyay, Shreyasi and De, Goutam and Basu, Basudeb (2017) Stabilized Cu2O Nanoparticles on Macroporous Polystyrene Resins Cu2O@ARF]: Improved and Reusable Heterogeneous Catalyst for On-Water Synthesis of Triazoles via Click Reaction. Industrial & Engineering Chemistry Research, 56 (41). pp. 11726-11733. ISSN 0888-5885

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Amberlite resin formate (ARF) with a polyionic polar environment is successfully utilized as a unique support for immobilization of stabilized Cu2O nanoparticles (NPs). The composite Cu2O@ARF] is characterized by FT-IR, XRD, XPS, HR-TEM, and ICP-AES analyses. The HR-TEM results confirm existence of fairly dispersed Cu2O NPs with average diameter (similar to 5-7 nm) onto the resin surface, while ICP-AES analyses show loading of copper (10.8 mg) per gram of the resin composite (1.08 wt % of Cu). The ionic resin with counteranions (HCOO-) could reduce precursor Cu(II) to Cu(I) and stabilize Cu2O NPs. The as-synthesized composite acts as a robust, efficient, and recyclable catalyst for efficient construction of a 1,2,3-triazole ring under aqueous and aerobic conditions. The TOF (219 h(-1)) is found significantly high as compared to that of some related existing catalysts (120 h(-1)). The prowess of the catalyst is further demonstrated in the synthesis of a triazole-bearing antitumor drug molecule.

Item Type: Article
Subjects: Engineering Materials
Divisions: Nano-Structured Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 24 Jan 2018 10:43
Last Modified: 24 Jan 2018 10:43

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