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Primitivo L, De Angelis M, Necci A, Di Pietro F, Ricelli A, Caschera D, Pilloni L, Suber L, Righi G. Silver thiolate nanoclusters as support for chiral ligands: application in heterogeneous phase asymmetric catalysis. NANOSCALE ADVANCES 2023; 5:627-632. [PMID: 36756516 PMCID: PMC9890582 DOI: 10.1039/d2na00692h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 12/20/2022] [Indexed: 06/18/2023]
Abstract
Silver thiolate nanoclusters have been functionalized with a chiral amino alcohol ligand that has previously shown high catalytic efficiency in different asymmetric reactions. The as-developed nanostructured catalyst, which can be easily recovered by simple centrifugation, has been tested in the addition of nitromethane to aromatic aldehydes, showing the same catalytic activity as the homogeneous ligand. Moreover, it was reused for two further recycling cycles without loss of efficiency. To the best of our knowledge, this is the first example of silver nanoclusters employed as a support for chiral ligands for heterogeneous phase asymmetric catalysis.
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Affiliation(s)
- Ludovica Primitivo
- Department of Chemistry, Sapienza University of Rome P.le A. Moro 5 00185 Rome Italy
| | - Martina De Angelis
- Department of Chemistry, Sapienza University of Rome P.le A. Moro 5 00185 Rome Italy
| | - Andrea Necci
- Department of Chemistry, Sapienza University of Rome P.le A. Moro 5 00185 Rome Italy
| | - Federica Di Pietro
- Department of Chemistry, Sapienza University of Rome P.le A. Moro 5 00185 Rome Italy
| | - Alessandra Ricelli
- Department of Chemistry, Sapienza University of Rome P.le A. Moro 5 00185 Rome Italy
- CNR-IBPM-c/o Dep. Chemistry, Sapienza University of Rome 00185 Rome Italy
| | | | - Luciano Pilloni
- ENEA SSPT-PROMAS-MATPRO, Materials Technology Division, Casaccia Research Centre 00123 Rome Italy
| | - Lorenza Suber
- CNR-ISM Via Salaria km 29,300, 00015 Monterotondo St. Italy
| | - Giuliana Righi
- Department of Chemistry, Sapienza University of Rome P.le A. Moro 5 00185 Rome Italy
- CNR-IBPM-c/o Dep. Chemistry, Sapienza University of Rome 00185 Rome Italy
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Fatimah I, Fadillah G, Purwiandono G, Sahroni I, Purwaningsih D, Riantana H, Avif AN, Sagadevan S. Magnetic-silica nanocomposites and the functionalized forms for environment and medical applications: A review. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109213] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Primitivo L, Sappino C, De Angelis M, Righi F, Iannoni M, Lucci G, Luzzitelli G, Suber L, Leonelli F, Ricelli A, Righi G. Preparation and Asymmetric Induction Evaluation of the First Ephedrine-Based Ligands Immobilized on Magnetic Nanoparticles. ACS OMEGA 2021; 6:35641-35648. [PMID: 34984295 PMCID: PMC8717543 DOI: 10.1021/acsomega.1c05514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/17/2021] [Indexed: 06/14/2023]
Abstract
Herein, the synthesis and catalytic activity of two ephedrine-based catalysts and two ephedrine-based magnetic nanoparticle-supported catalysts are reported. All catalysts developed were tested in the addition of diethylzinc to aromatic aldehydes and in the Henry reaction. The homogeneous catalysts showed moderate catalytic activity in the organozinc addition and good activity in the Henry reaction, whereas in the case of the nanocatalyst, it was not effective in the addition of diethylzinc to aldehydes and gave reasonable results in the Henry reaction. Moreover, the nanocatalyst remained unchanged over the course of up to three catalytic cycles. To the best of our knowledge, the proposed system is the first recyclable ephedrine-based magnetic nanocatalyst employed in an enantioselective reaction.
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Affiliation(s)
- Ludovica Primitivo
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Roma, Italy
| | - Carla Sappino
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Roma, Italy
| | - Martina De Angelis
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Roma, Italy
| | - Francesco Righi
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Roma, Italy
| | - Marika Iannoni
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Roma, Italy
| | - Giulia Lucci
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Roma, Italy
| | | | - Lorenza Suber
- CNR-ISM, Via, Salaria km 29,300, Monterotondo Scalo, 00015 Roma, Italy
| | - Francesca Leonelli
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Roma, Italy
| | - Alessandra Ricelli
- CNR-IBPM-
c/o Dip. Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Roma, Italy
| | - Giuliana Righi
- CNR-IBPM-
c/o Dip. Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Roma, Italy
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