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Gu Q, Li M, Huo Y, Zhou Y, Jiang J, Ma Y, Wen N, Wei F, He M. Theoretical evidence for a pH-dependent effect of carbonate on the degradation of sulfonamide antibiotics. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024:124710. [PMID: 39173865 DOI: 10.1016/j.envpol.2024.124710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/21/2024] [Accepted: 08/08/2024] [Indexed: 08/24/2024]
Abstract
Carbonate (CO32-/HCO3-) have a significant impact on advanced oxidation processes (AOPs) by consuming reactive free radicals such as HO• to generate CO3•-. However, research on the mechanisms and kinetics of CO3•- remains limited. This study investigates the degradation mechanism and kinetics of sulfonamide antibiotics (SAs) by CO3•- through theoretical calculations. The calculation results revealed that the effect of CO3•- on SAs degradation is pH-dependent due to the dissociable sulfonamide group (-SO2NH-) of SAs in the common water treatment pH range (3∼8). The main reaction type of CO3•- with both neutral and anionic molecules of SAs is single electron transfer reaction. Frontier molecular orbital theory (FMO) illustrated that deprotonation of the sulfonamide group of SAs decreases the charge density on the heterocyclic ring, facilitating the electrophilic addition of CO3•-. The second-order rate constants of the neutral and anionic molecules of SAs with CO3•- were calculated as 7.57 × 101∼1.84 × 108 and 1.81 × 107∼7.94 × 109 M-1 s-1, respectively, resulting in an increase in the apparent reaction rate constants with pH. Stepwise multiple linear regression was employed to predict reactivity with anionic sulfonamide antibiotics (SAs-). Two models with outstanding prediction and stability were developed with coefficients of determination R2 of 0.660 and 0.681, respectively. The degradation kinetics simulation indicated that in the UV/H2O2 process in the presence of carbonate, the degradation rate of SAs increased with pH. Furthermore, the contribution of CO3•- to SMX degradation increased while that of HO• decreased. This study highlights the contribution of carbonates to the micropollutant degradation in the UV/H2O2 process as the model, providing theoretical insights into the development of carbonate-based AOPs.
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Affiliation(s)
- Qingyuan Gu
- Environment Research Institute, Shandong University, Qingdao 266237, P. R. China
| | - Mingxue Li
- Department of Civil and Environmental Engineering, Hong Kong Polytechnic University, Hong Kong SAR 999077, China
| | - Yanru Huo
- Environment Research Institute, Shandong University, Qingdao 266237, P. R. China
| | - Yuxin Zhou
- Environment Research Institute, Shandong University, Qingdao 266237, P. R. China
| | - Jinchan Jiang
- Weihai water conservancy affairs Service center, Weihai 264200, P. R. China
| | - Yuhui Ma
- Environment Research Institute, Shandong University, Qingdao 266237, P. R. China
| | - Nuan Wen
- Environment Research Institute, Shandong University, Qingdao 266237, P. R. China
| | - Fenghua Wei
- Assets and Laboratory Management Office, Shandong University, Qingdao 266237, P. R. China.
| | - Maoxia He
- Environment Research Institute, Shandong University, Qingdao 266237, P. R. China.
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Guo CY, Chen JZ, Liu WT, Mei H, Meng J, Chen JP. Organocatalytic enantioselective decarboxylative protonation of α-alkyl-α-aryl malonate monoesters. Chem Commun (Camb) 2024; 60:3854-3857. [PMID: 38497353 DOI: 10.1039/d3cc06018g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
In contrast to the well-established enzymatic enantioselective decarboxylative protonation (EDP), the corresponding chemocatalytic reactions of acyclic malonic acid derivatives remain challenging. Herein, we developed a biomimetic EDP of α-alkyl-α-aryl malonate monoesters using a chiral 1,2-trans-diaminocyclohexane-based N-sulfonamide as an organocatalyst. The method demonstrates excellent chemical yields, good enantioselectivity, mild reaction conditions, and the generation of only CO2 as waste.
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Affiliation(s)
- Cong-Ying Guo
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Jia-Zheng Chen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Wen-Ting Liu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Hao Mei
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Jie Meng
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Jian-Ping Chen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
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Liu ZJ, Ma ZW, Chen XP, Wang CC, Liu JT, Tao JC. Chiral tertiary amine-squaramide catalyzed highly enantioselective Michael addition of cyclic diketones to β,γ-unsaturated α-keto Esters. LETT ORG CHEM 2022. [DOI: 10.2174/1570178619666220314152530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
A novel tertiary amine squaramide has successfully developed and applied to catalyze the asymmetric Michael addition between cyclic diketones and β,γ-unsaturated α-ketoesters. The catalyst system performed well with a low catalyst loading of 1 mol% under mild reaction conditions. A series of synthetically and pharmaceutically useful chiral bicyclic compounds were obtained with both high yields (up to 97%) and excellent enantioselectivities (up to 97% ee).
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Affiliation(s)
- Zhi-Jing Liu
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, P. R. China
| | - Zhi-Wei Ma
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, P. R. China
| | - Xiao-Pei Chen
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, P. R. China
| | - Chuan-Chuan Wang
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, P. R. China
| | - Jun-Tao Liu
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, P. R. China
| | - Jing-Chao Tao
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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Deng R, Han TJ, Gao X, Yang YF, Mei GJ. Further developments of β,γ-unsaturated α-ketoesters as versatile synthons in asymmetric catalysis. iScience 2022; 25:103913. [PMID: 35243262 PMCID: PMC8881726 DOI: 10.1016/j.isci.2022.103913] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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Ma ZW, Wang CC, Lv QJ, Chen XP, Li AQ, Tao JC. Highly Enantioselective Michael Addition of Cyclic Diketones to β,γ-Unsaturated α-Keto Esters Catalyzed by Squaramide Organocatalyst. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1719863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractA new tertiary amine-squaramide organocatalyst has been developed and applied to the asymmetric Michael addition of cyclic diketones to β,γ-unsaturated α-keto esters. The catalyst system performed well with a low catalyst loading of 1 mol% under mild reaction conditions. A series of synthetically and pharmaceutically useful chiral bicyclic compounds were obtained in high yields (up to 97%) with excellent enantioselectivities (up to 99 % ee). Furthermore, this catalytic system can be used efficiently in large-scale reactions with the yields and enantioselectivities being maintained.
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Affiliation(s)
- Zhi-Wei Ma
- Faculty of Science, Henan University of Animal Husbandry and Economy
| | - Chuan-Chuan Wang
- Faculty of Science, Henan University of Animal Husbandry and Economy
| | - Quan-Jian Lv
- Faculty of Science, Henan University of Animal Husbandry and Economy
| | - Xiao-Pei Chen
- Faculty of Science, Henan University of Animal Husbandry and Economy
| | - Ai-Qin Li
- Faculty of Science, Henan University of Animal Husbandry and Economy
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Ma Z, Chen X, Wang C, Wang J, Tao J, Lü Q. Chiral Squaramide Catalyzed Enantioselective Michael Addition of Cyclic 1,3-Diketones to β, γ-Unsaturated α-Keto Esters. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202111030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Efficacy of Selenourea Organocatalysts in Asymmetric Michael Reactions under Standard and Solvent-Free Conditions. Molecules 2021; 26:molecules26237303. [PMID: 34885885 PMCID: PMC8658871 DOI: 10.3390/molecules26237303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 11/18/2022] Open
Abstract
By varying the steric and electronic surroundings of the hydrogen-bonding motif, the novel chiral Cinchona-alkaloid based selenoureas were developed. Acting as bifunctional catalysts, they were applied in the Michael reactions of dithiomalonate and nitrostyrene providing chiral adducts with up to 96% ee. The asymmetric Michael–-hemiacetalization reaction of benzylidene pyruvate and dimedone, performed with the assistance of 5 mol% of selenoureas, furnished the product with up to 93% ee and excellent yields. The effectiveness of the new hydrogen-bond donors was also proved in solvent-free reactions under ball mill conditions, supporting the sustainability of the devised catalytic protocol.
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Nickel (II) coordination on cross-linked poly triazine-urea-sulfonamide grafted onto Mg-Al LDHs: As a green catalytic system for the synthesis of tetrazolo[1,5-a] pyrimidines. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121971] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Dajek M, Pruszczyńska A, Konieczny KA, Kowalczyk R. Cinchona Squaramide‐Catalyzed Intermolecular Desymmetrization of 1,3‐Diketones Leading to Chiral 1,4‐Dihydropyridines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000455] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Maciej Dajek
- Department of ChemistryWroclaw University of Science and Technology
| | | | | | - Rafał Kowalczyk
- Department of ChemistryWroclaw University of Science and Technology
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Mlostoń G, Celeda M, Jasiński M, Urbaniak K, Boratyński PJ, Schreiner PR, Heimgartner H. 2-Unsubstituted Imidazole N-Oxides as Novel Precursors of Chiral 3-Alkoxyimidazol-2-ylidenes Derived from trans-1,2-Diaminocyclohexane and Other Chiral Amino Compounds. Molecules 2019; 24:molecules24234398. [PMID: 31810181 PMCID: PMC6930529 DOI: 10.3390/molecules24234398] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 11/28/2019] [Accepted: 11/29/2019] [Indexed: 11/28/2022] Open
Abstract
‘Desymmetrization’ of trans-1,2-diaminocyclohexane by treatment with α,ω-dihalogenated alkylation reagents leads to mono-NH2 derivatives (‘primary-tertiary diamines’). Upon reaction with formaldehyde, these products formed monomeric formaldimines. Subsequently, reactions of the formaldimines with α-hydroxyiminoketones led to the corresponding 2-unsubstituted imidazole N-oxide derivatives, which were used here as new substrates for the in situ generation of chiral imidazol-2-ylidenes. Upon O-selective benzylation, new chiral imidazolium salts were obtained, which were deprotonated by treatment with triethylamine in the presence of elemental sulfur. Under these conditions, the intermediate imidazol-2-ylidenes were trapped by elemental sulfur, yielding the corresponding chiral non-enolizable imidazole-2-thiones in good yields. Analogous reaction sequences, starting with imidazole N-oxides derived from enantiopure primary amines, amino alcohols, and amino acids, leading to the corresponding 3-alkoxyimidazole-2-thiones were also studied.
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Affiliation(s)
- Grzegorz Mlostoń
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, PL-91-403 Łódź, Poland; (M.C.); (M.J.); (K.U.)
- Correspondence: ; Tel.: +48-42-6355761
| | - Małgorzata Celeda
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, PL-91-403 Łódź, Poland; (M.C.); (M.J.); (K.U.)
| | - Marcin Jasiński
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, PL-91-403 Łódź, Poland; (M.C.); (M.J.); (K.U.)
| | - Katarzyna Urbaniak
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, PL-91-403 Łódź, Poland; (M.C.); (M.J.); (K.U.)
| | - Przemysław J. Boratyński
- Department of Organic Chemistry, Wrocław University of Technology, Wyspiańskiego 27, PL-50-370 Wrocław, Poland;
| | - Peter R. Schreiner
- Justus Liebig University, Institute of Organic Chemistry, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany;
| | - Heinz Heimgartner
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland;
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