| Autor: |
Irani MM; Department of Chemistry, Semnan University, 35131-19111 Semnan, Iran., Koukabi N; Department of Chemistry, Semnan University, 35131-19111 Semnan, Iran., Irani MA; Department of Chemistry, Semnan University, 35131-19111 Semnan, Iran., Dashtian K; Department of Chemistry, Iran University of Science and Technology, Tehran 16846- 13114, Iran., Seidi F; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China. |
| Jazyk: |
angličtina |
| Zdroj: |
Langmuir : the ACS journal of surfaces and colloids [Langmuir] 2024 Sep 03; Vol. 40 (35), pp. 18473-18485. Date of Electronic Publication: 2024 Aug 20. |
| DOI: |
10.1021/acs.langmuir.4c01562 |
| Abstrakt: |
The search for cost-effective, efficient, and ecofriendly heterogeneous catalysts for the Suzuki-Miyaura reaction is crucial due to challenges with expensive, toxic homogeneous catalysts. This study centrally aims at crafting a pioneering green catalyst by adorning reduced graphene oxide (rGO), sourced from basil seeds ( Ocimum basilicum L.), with an Ag-Cu 2 O composite structure. Comprehensive characterization of the Ag-Cu 2 O/rGO nanocomposite was conducted through FTIR, SEM, hHR-TEM, EDS, XPS, XRD, TGA, and N 2 adsorption/desorption analyses. Results showed that nanosized Ag-Cu 2 O particles were partially integrated into rGO sheets derived from basil seeds, acting as active species for oxidative addition with aryl halides in the SMR. The catalytic efficacy of this robust nanocatalyst was assessed in Suzuki-Miyaura cross-coupling reactions, targeting the synthesis of biaryls employing various aryl halides and aryl boronic acids. The findings underscore that the Ag-Cu 2 O/rGO nanocatalyst manifests rapid reaction kinetics (15 min) alongside commendable yields (99%). The Ag-Cu 2 O/rGO demonstrates impressive recyclability, maintaining catalytic efficiency over four cycles. Utilizing it as a green substrate for metal loading highlights its potential, offering well-defined coordination sites. This approach facilitates stable heterogeneous catalyst fabrication, crucial for significant bond formations. Notable features include broad applicability, exceptional functional tolerance, scalability, and practicality. Moreover, it holds promise for automating safe processes and enabling efficient late-stage functionalization of complex molecules with moderate to high efficiency, presenting promising prospects for various applications in chemical synthesis. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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