Palladium-based pseudohomogeneous catalyst for highly selective aerobic oxidation of benzylic alcohols to aldehydes
Abstract This study presents a novel class of pseudohomogeneous catalysts (PHC) based on carbon quantum dots functionalized with terpyridine ligands (CQDs-Tpy) to immobilize and stabilize palladium nanoparticles (Pd NPs). Extensive characterization techniques clearly confirmed the successful stabili...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-49526-y |
| _version_ | 1827388514346467328 |
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| author | Homa Targhan Aram Rezaei Alireza Aliabadi Ali Ramazani Zhefei Zhao Huajun Zheng |
| author_facet | Homa Targhan Aram Rezaei Alireza Aliabadi Ali Ramazani Zhefei Zhao Huajun Zheng |
| author_sort | Homa Targhan |
| collection | DOAJ |
| description | Abstract This study presents a novel class of pseudohomogeneous catalysts (PHC) based on carbon quantum dots functionalized with terpyridine ligands (CQDs-Tpy) to immobilize and stabilize palladium nanoparticles (Pd NPs). Extensive characterization techniques clearly confirmed the successful stabilization of Pd NPs on CQDs-Tpy. The effectiveness of the catalyst was demonstrated in the selective aerobic oxidation of primary and secondary of benzylic alcohols to aldehydes in the absence of additives and phase transfer catalyst (PTC). Remarkably, the reactions predominantly yielded aldehydes without further oxidation to carboxylic acids. By employing low catalyst loadings (0.13 mol%), high conversions (up to 89%) and excellent selectivity (> 99%) of the aldehyde derivatives were achieved. Moreover, the CQDs-Tpy/Pd NPs catalyst displayed suitable catalytic activity and recyclability, offering potential economic advantages. This promising approach opens up new opportunities in the field of catalysis for designing subnanometric metal-based PHCs. |
| first_indexed | 2024-03-08T16:19:56Z |
| format | Article |
| id | doaj.art-ea7760d097494e18a1ed148c5416141b |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-08T16:19:56Z |
| publishDate | 2024-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-ea7760d097494e18a1ed148c5416141b2024-01-07T12:26:36ZengNature PortfolioScientific Reports2045-23222024-01-0114111210.1038/s41598-023-49526-yPalladium-based pseudohomogeneous catalyst for highly selective aerobic oxidation of benzylic alcohols to aldehydesHoma Targhan0Aram Rezaei1Alireza Aliabadi2Ali Ramazani3Zhefei Zhao4Huajun Zheng5Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical SciencesNano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical SciencesPharmaceutical Sciences Research Center, School of Pharmacy, Health Institute, Kermanshah University of Medical SciencesDepartment of Chemistry, University of ZanjanDepartment of Applied Chemistry, Zhejiang University of TechnologyDepartment of Applied Chemistry, Zhejiang University of TechnologyAbstract This study presents a novel class of pseudohomogeneous catalysts (PHC) based on carbon quantum dots functionalized with terpyridine ligands (CQDs-Tpy) to immobilize and stabilize palladium nanoparticles (Pd NPs). Extensive characterization techniques clearly confirmed the successful stabilization of Pd NPs on CQDs-Tpy. The effectiveness of the catalyst was demonstrated in the selective aerobic oxidation of primary and secondary of benzylic alcohols to aldehydes in the absence of additives and phase transfer catalyst (PTC). Remarkably, the reactions predominantly yielded aldehydes without further oxidation to carboxylic acids. By employing low catalyst loadings (0.13 mol%), high conversions (up to 89%) and excellent selectivity (> 99%) of the aldehyde derivatives were achieved. Moreover, the CQDs-Tpy/Pd NPs catalyst displayed suitable catalytic activity and recyclability, offering potential economic advantages. This promising approach opens up new opportunities in the field of catalysis for designing subnanometric metal-based PHCs.https://doi.org/10.1038/s41598-023-49526-y |
| spellingShingle | Homa Targhan Aram Rezaei Alireza Aliabadi Ali Ramazani Zhefei Zhao Huajun Zheng Palladium-based pseudohomogeneous catalyst for highly selective aerobic oxidation of benzylic alcohols to aldehydes Scientific Reports |
| title | Palladium-based pseudohomogeneous catalyst for highly selective aerobic oxidation of benzylic alcohols to aldehydes |
| title_full | Palladium-based pseudohomogeneous catalyst for highly selective aerobic oxidation of benzylic alcohols to aldehydes |
| title_fullStr | Palladium-based pseudohomogeneous catalyst for highly selective aerobic oxidation of benzylic alcohols to aldehydes |
| title_full_unstemmed | Palladium-based pseudohomogeneous catalyst for highly selective aerobic oxidation of benzylic alcohols to aldehydes |
| title_short | Palladium-based pseudohomogeneous catalyst for highly selective aerobic oxidation of benzylic alcohols to aldehydes |
| title_sort | palladium based pseudohomogeneous catalyst for highly selective aerobic oxidation of benzylic alcohols to aldehydes |
| url | https://doi.org/10.1038/s41598-023-49526-y |
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