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Vanhoof JR, De Smedt PJ, Derhaeg J, Ameloot R, De Vos DE. Metal-Free Electrocatalytic Diacetoxylation of Alkenes. Angew Chem Int Ed Engl 2023; 62:e202311539. [PMID: 37724630 DOI: 10.1002/anie.202311539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/08/2023] [Accepted: 09/19/2023] [Indexed: 09/21/2023]
Abstract
1,2-Dioxygenation of alkenes leads to a structural motif ubiquitous in organic synthons, natural products and active pharmaceutical ingredients. Straightforward and green synthesis protocols starting from abundant raw materials are required for facile and sustainable access to these crucial moieties. Especially industrially abundant aliphatic alkenes have proven to be arduous substrates in sustainable 1,2-dioxygenation methods. Here, we report a highly efficient electrocatalytic diacetoxylation of alkenes under ambient conditions using a simple iodobenzene mediator and acetic acid as both the solvent and an atom-efficient reactant. This transition metal-free method is applicable to a wide range of alkenes, even challenging feedstock alkenes such as ethylene and propylene, with a broad functional group tolerance and excellent faradaic efficiencies up to 87 %. In addition, this protocol can be extrapolated to alkenoic acids, resulting in cyclization of the starting materials to valuable lactone derivatives. With aromatic alkenes, a competing mechanism of direct anodic oxidation exists which enables reaction under catalyst-free conditions. The synthetic method is extensively investigated with cyclic voltammetry.
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Affiliation(s)
- Jef R Vanhoof
- Centre For Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F p.o. box 2454, 3001, Leuven, Belgium
| | - Pieter J De Smedt
- Centre For Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F p.o. box 2454, 3001, Leuven, Belgium
| | - Jan Derhaeg
- Centre For Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F p.o. box 2454, 3001, Leuven, Belgium
| | - Rob Ameloot
- Centre For Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F p.o. box 2454, 3001, Leuven, Belgium
| | - Dirk E De Vos
- Centre For Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F p.o. box 2454, 3001, Leuven, Belgium
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Abduh NAY, Al-Kahtani AA, Amer MS, Algarni TS, Al-Odayni AB. Fabricated Gamma-Alumina-Supported Zinc Ferrite Catalyst for Solvent-Free Aerobic Oxidation of Cyclic Ethers to Lactones. Molecules 2023; 28:7192. [PMID: 37894671 PMCID: PMC10609177 DOI: 10.3390/molecules28207192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/15/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
The aim of this work was to fabricate a new heterogeneous catalyst as zinc ferrite (ZF) supported on gamma-alumina (γ-Al2O3) for the conversion of cyclic ethers to the corresponding, more valuable lactones, using a solvent-free method and O2 as an oxidant. Hence, the ZF@γ-Al2O3 catalyst was prepared using a deposition-coprecipitation method, then characterized using TEM, SEM, EDS, TGA, FTIR, XRD, ICP, XPS, and BET surface area, and further applied for aerobic oxidation of cyclic ethers. The structural analysis indicated spherical, uniform ZF particles of 24 nm dispersed on the alumina support. Importantly, the incorporation of ZF into the support influenced its texture, i.e., the surface area and pore size were reduced while the pore diameter was increased. The product identification indicated lactone compound as the major product for saturated cyclic ether oxidation. For THF as a model reaction, it was found that the supported catalyst was 3.2 times more potent towards the oxidation of cyclic ethers than the unsupported one. Furthermore, the low reactivity of the six-membered ethers can be tackled by optimizing the oxidant pressure and the reaction time. In the case of unsaturated ethers, deep oxidation and polymerization reactions were competitive oxidations. Furthermore, it was found that the supported catalyst maintained good stability and catalytic activity, even after four cycles.
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Affiliation(s)
- Naaser A. Y. Abduh
- Department of Chemistry, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.A.-K.); (M.S.A.)
| | - Abdullah A. Al-Kahtani
- Department of Chemistry, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.A.-K.); (M.S.A.)
| | - Mabrook S. Amer
- Department of Chemistry, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.A.-K.); (M.S.A.)
| | - Tahani Saad Algarni
- Department of Chemistry, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.A.-K.); (M.S.A.)
| | - Abdel-Basit Al-Odayni
- Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
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3
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Sheta SM, Hamouda MA, Ali OI, Kandil AT, Sheha RR, El-Sheikh SM. Recent progress in high-performance environmental impacts of the removal of radionuclides from wastewater based on metal-organic frameworks: a review. RSC Adv 2023; 13:25182-25208. [PMID: 37622006 PMCID: PMC10445089 DOI: 10.1039/d3ra04177h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/01/2023] [Indexed: 08/26/2023] Open
Abstract
The nuclear industry is rapidly developing and the effective management of nuclear waste and monitoring the nuclear fuel cycle are crucial. The presence of various radionuclides such as uranium (U), europium (Eu), technetium (Tc), iodine (I), thorium (Th), cesium (Cs), and strontium (Sr) in the environment is a major concern, and the development of materials with high adsorption capacity and selectivity is essential for their effective removal. Metal-organic frameworks (MOFs) have recently emerged as promising materials for removing radioactive elements from water resources due to their unique properties such as tunable pore size, high surface area, and chemical structure. This review provides an extensive analysis of the potential of MOFs as adsorbents for purifying various radionuclides rather than using different techniques such as precipitation, filtration, ion exchange, electrolysis, solvent extraction, and flotation. This review discusses various MOF fabrication methods, focusing on minimizing environmental impacts when using organic solvents and solvent-free methods, and covers the mechanism of MOF adsorption towards radionuclides, including macroscopic and microscopic views. It also examines the effectiveness of MOFs in removing radionuclides from wastewater, their behavior on exposure to high radiation, and their renewability and reusability. We conclude by emphasizing the need for further research to optimize the performance of MOFs and expand their use in real-world applications. Overall, this review provides valuable insights into the potential of MOFs as efficient and durable materials for removing radioactive elements from water resources, addressing a critical issue in the nuclear industry.
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Affiliation(s)
- Sheta M Sheta
- Inorganic Chemistry Department, National Research Centre 33 El-Behouth St., Dokki Giza 12622 Egypt +201009697356
| | - Mohamed A Hamouda
- Chemistry Department, Faculty of Science, Helwan University Ain Helwan Cairo 11795 Egypt +201098052633
| | - Omnia I Ali
- Chemistry Department, Faculty of Science, Helwan University Ain Helwan Cairo 11795 Egypt +201098052633
| | - A T Kandil
- Chemistry Department, Faculty of Science, Helwan University Ain Helwan Cairo 11795 Egypt +201098052633
| | - Reda R Sheha
- Nuclear Chem. Dept., Hot Lab Center, Egyptian Atomic Energy Authority P. O. 13759 Cairo Egypt +20-27142451 +201022316076
| | - Said M El-Sheikh
- Nanomaterials and Nanotechnology Department, Central Metallurgical R & D Institute Cairo 11421 Egypt
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4
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Fransen KA, Av-Ron SHM, Buchanan TR, Walsh DJ, Rota DT, Van Note L, Olsen BD. High-throughput experimentation for discovery of biodegradable polyesters. Proc Natl Acad Sci U S A 2023; 120:e2220021120. [PMID: 37252959 PMCID: PMC10266013 DOI: 10.1073/pnas.2220021120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 03/08/2023] [Indexed: 06/01/2023] Open
Abstract
The consistent rise of plastic pollution has stimulated interest in the development of biodegradable plastics. However, the study of polymer biodegradation has historically been limited to a small number of polymers due to costly and slow standard methods for measuring degradation, slowing new material innovation. High-throughput polymer synthesis and a high-throughput polymer biodegradation method are developed and applied to generate a biodegradation dataset for 642 chemically distinct polyesters and polycarbonates. The biodegradation assay was based on the clear-zone technique, using automation to optically observe the degradation of suspended polymer particles under the action of a single Pseudomonas lemoignei bacterial colony. Biodegradability was found to depend strongly on aliphatic repeat unit length, with chains less than 15 carbons and short side chains improving biodegradability. Aromatic backbone groups were generally detrimental to biodegradability; however, ortho- and para-substituted benzene rings in the backbone were more likely to be degradable than metasubstituted rings. Additionally, backbone ether groups improved biodegradability. While other heteroatoms did not show a clear improvement in biodegradability, they did demonstrate increases in biodegradation rates. Machine learning (ML) models were leveraged to predict biodegradability on this large dataset with accuracies over 82% using only chemical structure descriptors.
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Affiliation(s)
- Katharina A. Fransen
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA02139
| | - Sarah H. M. Av-Ron
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA02139
| | - Tess R. Buchanan
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA02139
| | - Dylan J. Walsh
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA02139
| | - Dechen T. Rota
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA02139
| | - Lana Van Note
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA02139
| | - Bradley D. Olsen
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA02139
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Abduh NAY, Al-Kahtani A, Algarni TS, Al-Odayni AB. Selective Oxidation of Tetrahydrofuran to Gamma-Butyrolactone over Spinel ZnFe2O4 Nanoparticle Catalyst. Catalysts 2023. [DOI: 10.3390/catal13040692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
The selective oxidation of tetrahydrofuran (THF) to gamma-butyrolactone (GBL) on spinel ZnFe2O4 nanoparticles (ZFNPs) was investigated. The catalyst was prepared with the coprecipitation method and characterized by FTIR, XRD, TEM, SEM, EDS, TGA, XPS, and BET surface area. The characterization techniques showed that a nonuniform spherical spinal oxide with an average particle size of 26 nm was formed. The oxidation reaction was carried out using hydrogen peroxide as an oxidizing agent under solvent-free conditions. GC-MS analysis revealed that the main product was GBL. 2-hydroxytetrahydrofuran (THF-2-OH), gamma-hydroxybutyric acid (GHBA), and gamma-hydroxybutaldehyde (GHBAl) were obtained as minor products. The effects of different reaction parameters, such as temperature, H2O2/THF mole ratio, catalyst dose, reaction time, and reusability, were evaluated. A 47.3% conversion of THF with an 88.2% selectivity of GBL was achieved by conducting the reaction at 80 °C for nine hours using a 1:1 mole ratio of H2O2/THF. A slight increase in the conversion degree was attained at higher temperatures; however, an over-oxidation process was observed as the temperature exceeded 80 °C. The catalyst remained effective and stable over four reuses.
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Affiliation(s)
- Naaser A. Y. Abduh
- Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdullah Al-Kahtani
- Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Tahani Saad Algarni
- Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdel-Basit Al-Odayni
- Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
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Wang Y, Zhang M, Ding G, Wei R, Zheng R, Li C, Wang W, Zhang H, Sun Q, Zhao X, Liu L. Stable superhydrophobic coating on Zr-based bulk metallic glass exhibiting excellent antibacterial property and cytocompatibility. Colloids Surf B Biointerfaces 2023; 225:113256. [PMID: 36940503 DOI: 10.1016/j.colsurfb.2023.113256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/06/2023] [Accepted: 03/06/2023] [Indexed: 03/12/2023]
Abstract
A central challenge in the study of clinical medicine is to reduce the infection rate of implants without affecting cell adhesion and reproduction. For the first time, we prepared a robust and stable superhydrophobic Zn/pDop/SA coating on Zr56Al16Co28 bulk metallic glass by electrodeposition that exhibits a maximum water contact angle of 158° and a sliding angle less than 1°. The growth of the coating micro-nano structure was controlled by changing the electrodeposition process parameters. The coating showed excellent antimicrobial adhesion properties in the environment to avoid bacteria adhesion and can transform from superhydrophobic to hydrophilic in body fluids to promote cell adhesion. The biodegradation of the Zn crystal structure was responsible for the hydrophobic transformation of the coating and the rough surface after biodegradation provided a point of adhesion for the cells. By designing a uniform crater structure on the substrate as an "armour" and co-depositing dopamine into the coating, the coating's wear resistance was greatly improved. The superhydrophobic coating can maintain stable superhydrophobicity in high temperature environment, air and UV irradiation. This study opens new horizons for the surface modification of bulk metallic glass and promotes its application in the medical field.
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Affiliation(s)
- Yujia Wang
- School of Environmental and Material Engineering, Yantai University, No. 30 Qingquan Road, Shandong 264005, China
| | - Ming Zhang
- School of Environmental and Material Engineering, Yantai University, No. 30 Qingquan Road, Shandong 264005, China
| | - Guanzhong Ding
- School of Environmental and Material Engineering, Yantai University, No. 30 Qingquan Road, Shandong 264005, China
| | - Ranfeng Wei
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Shandong 264005, China
| | - Rui Zheng
- School of Environmental and Material Engineering, Yantai University, No. 30 Qingquan Road, Shandong 264005, China
| | - Chaojun Li
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Shandong 264005, China
| | - Wei Wang
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Shandong 264005, China
| | - Hao Zhang
- School of Environmental and Material Engineering, Yantai University, No. 30 Qingquan Road, Shandong 264005, China
| | - Qijing Sun
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Shandong 264005, China
| | - Xiangjin Zhao
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Shandong 264005, China.
| | - Li Liu
- School of Environmental and Material Engineering, Yantai University, No. 30 Qingquan Road, Shandong 264005, China.
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Bińczak J, Szelwicka A, Siewniak A, Dziuba K, Chrobok A. Oxidation of Cyclohexanone with Peracids-A Straight Path to the Synthesis of ε-Caprolactone Oligomers. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6608. [PMID: 36233947 PMCID: PMC9571306 DOI: 10.3390/ma15196608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/12/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
During Baeyer-Villiger (BV) oxidation of cyclohexanone with peracids, oligo(ε-caprolactone) (OCL) may be formed. In this work, a two-step one-pot method for the synthesis of OCL involving the BV oxidation of cyclohexanone with peracids and then oligomerization of the resulting ε-caprolactone has been developed. The process was carried out in two solvents: toluene and cyclohexane. Based on the studies, it was determined that the increased temperature (45-55 °C) and the longer reaction time (4 h) favor the formation of OCls. Among the tested peracids (perC8-C12), perC10 turned out to be the most effective oxidant. Moreover, the obtained oligomers were characterized by means of NMR, MS MALDI TOF, and TGA analyses, which made it possible to determine the structure of oligomers (length and terminal groups of the chains). Additionally, the oligomers obtained after the distillation of the reaction mixture were analyzed.
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Affiliation(s)
- Jakub Bińczak
- Grupa Azoty Zakłady Azotowe, “Puławy” S.A., Al. Tysiąclecia Państwa Polskiego 13, 24-110 Puławy, Poland or
- Department of Chemical Organic Technology and Petrochemistry, PhD School, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland
| | - Anna Szelwicka
- Department of Chemical Organic Technology and Petrochemistry, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
| | - Agnieszka Siewniak
- Department of Chemical Organic Technology and Petrochemistry, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
| | - Krzysztof Dziuba
- Grupa Azoty Zakłady Azotowe, “Puławy” S.A., Al. Tysiąclecia Państwa Polskiego 13, 24-110 Puławy, Poland or
| | - Anna Chrobok
- Department of Chemical Organic Technology and Petrochemistry, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
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Yang Y, Du W, Qian G, Duan X, Gu X, Zhou X, Yang Z, Zhang J. Kinetically guided high‐yield and rapid production of ε‐caprolactone in a microreactor system. AIChE J 2022. [DOI: 10.1002/aic.17867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yue Yang
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Wei Du
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Gang Qian
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Xuezhi Duan
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Xiongyi Gu
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Xinggui Zhou
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Zhirong Yang
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Jing Zhang
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai China
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Illy N, Mongkhoun E. Thiolactone chemistry, a versatile platform for macromolecular engineering. Polym Chem 2022. [DOI: 10.1039/d2py00731b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review covers the extensive use of γ-thiolactone chemistry as a versatile and powerful tool for macromolecular engineering and the preparation of various polymer architectures, such as functional, alternating, or sequence-controlled (co)polymers.
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Affiliation(s)
- Nicolas Illy
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 place Jussieu, F-75005 Paris, France
| | - Emma Mongkhoun
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 place Jussieu, F-75005 Paris, France
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Diniz Lessa M, Fajardo JRD, Delarmelina M, Carneiro JWDM. A DFT study on the mechanism for polymerization of δ-valerolactone initiated by N-heterocyclic carbene (NHC) catalysts. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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