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Slimi H, Litim Z, Ollevier T, Kraïem J. Eco-Friendly Homo- and Cross-Etherification of Benzyl Alcohols Catalyzed by Iron(II/III) Chloride in Propylene Carbonate as a Green and Recyclable Solvent. ACS OMEGA 2023; 8:44558-44570. [PMID: 38046320 PMCID: PMC10688217 DOI: 10.1021/acsomega.3c03803] [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: 05/30/2023] [Revised: 10/26/2023] [Accepted: 10/31/2023] [Indexed: 12/05/2023]
Abstract
A new catalytic approach toward the symmetrical and nonsymmetrical etherification of benzyl alcohols was developed. The symmetrical etherification reaction was carried out in the presence of FeCl3·6H2O (5 mol %) as the catalyst and propylene carbonate as a green and recyclable solvent and led to the corresponding symmetrical ethers in 53 to 91% yields. The nonsymmetrical etherification of benzylic alcohols was achieved by using FeCl2·4H2O (10 mol %) in the presence of a pyridine bis-thiazoline ligand (12 mol %) and allowed for high selectivity and in 52 to 89% yields. These methods take advantage of eco-friendly conditions.
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Affiliation(s)
- Hanen Slimi
- Laboratoire
de Développement Chimique, Galénique et Pharmacologique
des Médicaments, Faculté de Pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000 Monastir, Tunisia
| | - Zaineb Litim
- Laboratoire
de Développement Chimique, Galénique et Pharmacologique
des Médicaments, Faculté de Pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000 Monastir, Tunisia
| | - Thierry Ollevier
- Département
de chimie, Université Laval, 1045 avenue de la Médecine, Québec (QC) G1V 0A6, Canada
| | - Jamil Kraïem
- Laboratoire
de Développement Chimique, Galénique et Pharmacologique
des Médicaments, Faculté de Pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000 Monastir, Tunisia
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2
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Abstract
Nitroxides, also known as nitroxyl radicals, are long-lived or stable radicals with the general structure R1R2N-O•. The spin distribution over the nitroxide N and O atoms contributes to the thermodynamic stability of these radicals. The presence of bulky N-substituents R1 and R2 prevents nitroxide radical dimerization, ensuring their kinetic stability. Despite their reactivity toward various transient C radicals, some nitroxides can be easily stored under air at room temperature. Furthermore, nitroxides can be oxidized to oxoammonium salts (R1R2N═O+) or reduced to anions (R1R2N-O-), enabling them to act as valuable oxidants or reductants depending on their oxidation state. Therefore, they exhibit interesting reactivity across all three oxidation states. Due to these fascinating properties, nitroxides find extensive applications in diverse fields such as biochemistry, medicinal chemistry, materials science, and organic synthesis. This review focuses on the versatile applications of nitroxides in organic synthesis. For their use in other important fields, we will refer to several review articles. The introductory part provides a brief overview of the history of nitroxide chemistry. Subsequently, the key methods for preparing nitroxides are discussed, followed by an examination of their structural diversity and physical properties. The main portion of this review is dedicated to oxidation reactions, wherein parent nitroxides or their corresponding oxoammonium salts serve as active species. It will be demonstrated that various functional groups (such as alcohols, amines, enolates, and alkanes among others) can be efficiently oxidized. These oxidations can be carried out using nitroxides as catalysts in combination with various stoichiometric terminal oxidants. By reducing nitroxides to their corresponding anions, they become effective reducing reagents with intriguing applications in organic synthesis. Nitroxides possess the ability to selectively react with transient radicals, making them useful for terminating radical cascade reactions by forming alkoxyamines. Depending on their structure, alkoxyamines exhibit weak C-O bonds, allowing for the thermal generation of C radicals through reversible C-O bond cleavage. Such thermally generated C radicals can participate in various radical transformations, as discussed toward the end of this review. Furthermore, the application of this strategy in natural product synthesis will be presented.
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Affiliation(s)
- Dirk Leifert
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
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3
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Wang M, Wang J, Ma N, Yu S, Kong J, Zhang X. A novel colorimetric detection of glutathione based on stable free radical TEMPO oxidation of 3,3',5,5'-tetramethylbenzizine (TMB) via Copper(II) acetylacetonate catalysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 285:121875. [PMID: 36170777 DOI: 10.1016/j.saa.2022.121875] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 08/21/2022] [Accepted: 09/10/2022] [Indexed: 06/16/2023]
Abstract
In this work, a new colorimetric method for the determination of Glutathione (GSH) on the basis of stable free radical 2,2,6,6 - tetramethylpiperidine - 1 - oxyl (TEMPO) oxidation of 3,3',5,5'-tetramethylbenzizine (TMB) via copper(II) acetylacetonate (Cu(acac)2) catalysis was proposed. TEMPO was catalyzed by Cu(acac)2 to produce TEMPO+, then TEMPO+ oxidized TMB to produce oxidized TMB (ox - TMB). The resulting ox - TMB showed blue and possessed a distinct absorption peak about 650 nm. Whereas, GSH prohibited the generation of ox - TMB through inhibiting TMB oxidation. As compared to the case that GSH was absent, significantly enhanced absorption was determined, and was proportional to GSH amount. On this basis, a qualitative and quantitative detection method of GSH with the naked eye and the microplate reader was achieved. The developed TEMPO - based method achieved GSH biosensing with improved sensitivity in a good specificity - manner. The limit of detection (LOD) was 90 μM via naked eye, and the microplate reader was 4.71 μM. And the stable free radical TEMPO possessed higher stability and lower toxicity than traditional oxidant of H2O2. Moreover, this TEMPO - based method achieved good results in the detection of GSH in human serums.
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Affiliation(s)
- Meng Wang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Jiao Wang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Nan Ma
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Shuaibing Yu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China.
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, PR China
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Sun Q, Yang J, Fan Y, Cai K, Lu Z, He Z, Xu Z, Lai X, Zheng Y, Liu C, Wang F, Sun Z. The role of trace N-Oxyl compounds as redox mediator in enhancing antiviral ribavirin elimination in UV/Chlorine process. APPLIED CATALYSIS. B, ENVIRONMENTAL 2022; 317:121709. [PMID: 35812172 PMCID: PMC9254691 DOI: 10.1016/j.apcatb.2022.121709] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/19/2022] [Accepted: 07/03/2022] [Indexed: 05/19/2023]
Abstract
Ribavirin (RBV) is an antiviral drug used for treating COVID-19 infection. Its release into natural waters would threaten the health of aquatic ecosystem. This study reports an effective approach to degrade RBV by the trace N-oxyl compounds (2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPO) and N-Hydroxyphthalimide (NHPI)) enhanced UV activated free chlorine (UV/Chlorine) process. The results indicated that TEMPO and NHPI at low concentrations (0.1 μM and 1 μM, respectively) could strongly enhance RBV degradation in both deionized water with different pHs and practical surface water. The enhancement was verified to be attributed to the transformation of TEMPO and NHPI into their reactive forms (i.e., TEMPO+ and PINO), which generations deeply relied on radicals. The two N-oxyl compounds inhibit ClO• yield by hindering the reaction of free chlorine vs. HO• and Cl•. The analyses on acute toxicities of RBV degradation products indicate that UV/Chlorine/N-oxyl compounds process can detoxify RBV more efficiently than UV/Chlorine process.
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Affiliation(s)
- Qiyuan Sun
- College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, China
- Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou, Fujian 350007, China
| | - Jing Yang
- College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, China
| | - Yongjie Fan
- College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, China
| | - Kaicong Cai
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fujian Normal University, Fuzhou 350007, China
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen 361005, China
| | - Zhilei Lu
- College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, China
| | - Zhenle He
- College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, China
| | - Zeping Xu
- College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, China
| | - Xingteng Lai
- College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, China
| | - Yuyi Zheng
- College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, China
| | - Changqing Liu
- College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, China
| | - Feifeng Wang
- College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, China
- Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou, Fujian 350007, China
| | - Zhe Sun
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuang-qing Road, Beijing 100085, China
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Zhang H, Shi Z, Bai R, Wang D, Cui F, Zhang J, Strathmann TJ. Role of TEMPO in Enhancing Permanganate Oxidation toward Organic Contaminants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:7681-7689. [PMID: 34009966 DOI: 10.1021/acs.est.1c01824] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Permanganate (Mn(VII)) has been widely applied as an oxidant in water treatment plants. However, compared with ozone, Fenton, and other advanced oxidation processes, the reaction rates of some trace organic contaminants (TrOCs) with Mn(VII) are relatively low. Therefore, further studies on the strategies for enhancing the oxidation of organic contaminants by Mn(VII) are valuable. In this work, 2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPO), as an electron shuttle, enhanced Mn(VII) oxidation toward various TrOCs (i.e., bisphenol A (BPA), phenol, estrone, sulfisoxazole, etc.). TEMPO sped up the oxidative kinetics of BPA by Mn(VII) greatly, and this enhancement was observed at a wide pH range of 4.0-11.0. The exact mechanism of TEMPO in Mn(VII) oxidation was described briefly as follows: (i) TEMPO was oxidized by Mn(VII) to its oxoammonium cation (TEMPO+) by electron transfer, which was the reactive species responsible for the accelerated degradation of TrOCs and (ii) TEMPO+ could decompose TrOCs rapidly with itself back to TEMPO or TEMPOH (TEMPO hydroxylamine). To further illustrate the interaction between TEMPO and target TrOCs, we explored the transformation pathways of BPA in Mn(VII)/TEMPO oxidation. Compared to Mn(VII) alone, adding TEMPO into the Mn(VII) solution significantly suppressed BPA's self-coupling and promoted hydroxylation, ring-opening, and decarboxylation. Moreover, the Mn(VII)/TEMPO system was promising for the abatement of TrOCs in real waters for humic acid, and ubiquitous cations/anions had no adverse or even beneficial impact on the Mn(VII)/TEMPO system.
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Affiliation(s)
- Honglong Zhang
- College of Environment and Ecology, Chongqing University, Chongqing 400045, P. R. China
| | - Zhenyu Shi
- Environment Monitoring Center of Jiangsu Province, Nanjing 210036, P. R. China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, P. R. China
| | - Dingxiang Wang
- College of Environment and Ecology, Chongqing University, Chongqing 400045, P. R. China
| | - Fuyi Cui
- College of Environment and Ecology, Chongqing University, Chongqing 400045, P. R. China
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, P. R. China
| | - Jing Zhang
- College of Environment and Ecology, Chongqing University, Chongqing 400045, P. R. China
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, P. R. China
| | - Timothy J Strathmann
- Department of Civil and Environmental Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States
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Aerobic oxidation of alcohol by model complexes relevant to metal site galactose oxidase: role of copper(I) intermediate, evidence for the generation of end-on copper(II)–OOH species and catalytic promiscuity for oxidation of benzyl alcohol, catechol and o-aminophenol. TRANSIT METAL CHEM 2020. [DOI: 10.1007/s11243-019-00367-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Yin L, Zhang J, Yao J, Li H. A Designed TEMPO-derivate Catalyst with Switchable Signals of EPR and Photoluminescence: Application in the Mechanism of Alcohol Oxidation. ChemCatChem 2018. [DOI: 10.1002/cctc.201800345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Lu Yin
- Department of Chemistry, ZJU-NHU United R&D Center; Zhejiang University; Hangzhou 310027 PR China
| | - Jiaxiang Zhang
- Department of Chemistry, ZJU-NHU United R&D Center; Zhejiang University; Hangzhou 310027 PR China
| | - Jia Yao
- Department of Chemistry, ZJU-NHU United R&D Center; Zhejiang University; Hangzhou 310027 PR China
| | - Haoran Li
- Department of Chemistry, ZJU-NHU United R&D Center; Zhejiang University; Hangzhou 310027 PR China
- State Key Laboratory of Chemical Engineering Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 PR China
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Peng J, Huang G, Wang HJ, Li FB, Huang C, Xiang JJ, Huang Y, Liu L, Liu CY, Asiri AM, Alamry KA. TEMPO-Mediated Synthesis of Tetrahydropyridinofullerenes: Reaction of [60]Fullerene with α-Methyl-Substituted Arylmethanamines and Aldehydes in the Presence of 4-Dimethylaminopyridine. J Org Chem 2018; 83:85-95. [PMID: 29231732 DOI: 10.1021/acs.joc.7b02378] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of scarce tetrahydropyridinofullerenes were synthesized by the metal-free-mediated reaction of [60]fullerene with cheap and easily available α-methyl-substituted arylmethanamines and aldehydes in the presence of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) and 4-dimethylaminopyridine (DMAP) in moderate to good yields comparable to the previously reported data for most monoadducts. The in situ generation of azadienes played a crucial role in the successful synthesis of tetrahydropyridinofullerenes. A plausible reaction mechanism was proposed to elucidate the reaction process.
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Affiliation(s)
- Jie Peng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, and School of Chemistry and Chemical Engineering, Hubei University , Wuhan 430062, People's Republic of China
| | - Gang Huang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, and School of Chemistry and Chemical Engineering, Hubei University , Wuhan 430062, People's Republic of China
| | - Hui-Juan Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences , Wuhan 430071, People's Republic of China
| | - Fa-Bao Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, and School of Chemistry and Chemical Engineering, Hubei University , Wuhan 430062, People's Republic of China
| | - Cheng Huang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, and School of Chemistry and Chemical Engineering, Hubei University , Wuhan 430062, People's Republic of China
| | - Jun-Jun Xiang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, and School of Chemistry and Chemical Engineering, Hubei University , Wuhan 430062, People's Republic of China
| | - Yongshun Huang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, and School of Chemistry and Chemical Engineering, Hubei University , Wuhan 430062, People's Republic of China
| | - Li Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, and School of Chemistry and Chemical Engineering, Hubei University , Wuhan 430062, People's Republic of China
| | - Chao-Yang Liu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences , Wuhan 430071, People's Republic of China
| | - Abdullah M Asiri
- Department of Chemistry, Faculty of Science, King Abdulaziz University , Jeddah 21589, Saudi Arabia
| | - Khalid A Alamry
- Department of Chemistry, Faculty of Science, King Abdulaziz University , Jeddah 21589, Saudi Arabia
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Dao R, Zhao C, Yao J, Li H. Distinguishing ionic and radical mechanisms of hydroxylamine mediated electrocatalytic alcohol oxidation using NO–H bond dissociation energies. Phys Chem Chem Phys 2018; 20:28249-28256. [DOI: 10.1039/c8cp06134c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
An idea is proposed to sort N-oxyl radicals with respect to their mechanisms of electrocatalytic alcohol oxidation by knowing the NO–H bond dissociation energies of their precursors.
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Affiliation(s)
- Rina Dao
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Chenxuan Zhao
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Jia Yao
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Haoran Li
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
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10
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Chen K, Mao J, Shen S, Fei L, Xie H, Jiang K. Mechanistic elucidation of the origins of the hydrogen-abstraction reactivity of hydroxyimide organocatalysts and its application in catalyst design. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.06.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Dao R, Wang X, Chen K, Zhao C, Yao J, Li H. Landscape of the structure–O–H bond dissociation energy relationship of oximes and hydroxylamines. Phys Chem Chem Phys 2017; 19:22309-22320. [PMID: 28805227 DOI: 10.1039/c7cp03809g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Extensive data are provided for in-depth understanding of the structure–O–H-bond-dissociation-energy-relationship of oximes and hydroxylamines, and novel insights are brought to electronic effects.
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Affiliation(s)
- Rina Dao
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Xinyu Wang
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Kexian Chen
- School of Food Science and Biotechnology
- Zhejiang Gongshang University
- Hangzhou
- P. R. China
| | - Chenxuan Zhao
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Jia Yao
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Haoran Li
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
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12
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Yu P, Zhou Y, Yang Y, Tang R. Two catalytic systems of l-proline/Cu(ii) catalyzed allylic oxidation of olefins with tert-butyl hydroperoxide. RSC Adv 2016. [DOI: 10.1039/c6ra11784h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Allylic oxidation of olefins by the two catalytic system of l-proline/Cu(ii).
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Affiliation(s)
- Peng Yu
- Science College of Hunan Agricultural University
- China
| | - Yin Zhou
- School of Chemistry and Chemical Engineering
- Central South University
- China
| | - Yingwei Yang
- School of Chemistry and Chemical Engineering
- Central South University
- China
| | - Ruiren Tang
- School of Chemistry and Chemical Engineering
- Central South University
- China
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13
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Jia L, Chen K, Wang L, Du R, Wang C, Yao J, Li H. Diverse catalytic efficiency of nitroxyl radicals tuned by Lewis acids in the oxidation of hydrocarbons. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.04.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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