1
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See WWL, Li Z. Styrene Oxide Isomerase-Catalyzed Meinwald Rearrangement in Cascade Biotransformations: Synthesis of Chiral and/or Natural Chemicals. Chemistry 2023; 29:e202300102. [PMID: 36740917 DOI: 10.1002/chem.202300102] [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: 01/12/2023] [Revised: 02/04/2023] [Accepted: 02/06/2023] [Indexed: 02/07/2023]
Abstract
Styrene oxide isomerase (SOI) catalyzes the Meinwald rearrangement of aryl epoxides to carbonyl compounds via a 1,2-trans-shift in a stereospecific manner. A number of cascade biotransformations with SOI-catalyzed epoxide isomerization as a key step have been developed to convert readily available substrates into valuable chiral chemicals. Cascade conversion of terminal or internal alkenes into chiral acids, alcohols or amines was achieved, which involved SOI-catalyzed enantio-retentive isomerization of terminal epoxides via 1,2-H shift, or internal epoxides via 1,2-methyl shift. SOI-involved cascades were also developed to convert racemic epoxides into chiral acids or amines via dynamic kinetic resolution. Additionally, combining SOI-catalyzed isomerization with enantioselective C-C bond forming enzymes enabled the synthesis of chiral amino acids or amino alcohols from racemic epoxides. Finally, integration of SOI-involved cascades with biosynthesis pathways allowed for the direct utilization of renewable substrates for the sustainable synthesis of high-value natural chemicals such as alcohols, acids, and esters.
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Affiliation(s)
- Willy W L See
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Zhi Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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2
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Xin R, See WWL, Yun H, Li X, Li Z. Enzyme-Catalyzed Meinwald Rearrangement with an Unusual Regioselective and Stereospecific 1,2-Methyl Shift. Angew Chem Int Ed Engl 2022; 61:e202204889. [PMID: 35535736 DOI: 10.1002/anie.202204889] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Indexed: 11/05/2022]
Abstract
The Meinwald rearrangement is a synthetically useful reaction but often lacks regioselectivity and stereocontrol. A significant challenge in the Meinwald rearrangement of internal epoxides is the non-regioselective migration of different substituents to give a mixture of products. Herein, an enzyme-catalyzed regioselective and stereospecific 1,2-methyl shift in the Meinwald rearrangement of internal epoxides is reported. Styrene oxide isomerase (SOI) catalyzed the unique isomerization of internal epoxides through 1,2-methyl shift without 1,2-hydride shift to give the corresponding aldehydes and a cyclic ketone as the sole product. SOI-catalyzed isomerization showed high stereospecificity, fully retaining the stereoconfiguration. The synthetic utility of this enzymatic Meinwald rearrangement was demonstrated by its incorporation into three new types of enantioselective cascades, to convert trans-β-methyl styrenes into the corresponding R-configured alcohols, acids, or amines in high ee and yield.
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Affiliation(s)
- Ruipu Xin
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Willy W L See
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Hui Yun
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Xirui Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Zhi Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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3
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Xin R, See WWL, Yun H, Li X, Li Z. Enzyme‐Catalyzed Meinwald Rearrangement with an Unusual Regioselective and Stereospecific 1,2‐Methyl Shift. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ruipu Xin
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Willy W. L. See
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Hui Yun
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Xirui Li
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Zhi Li
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
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4
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Smeets V, Gaigneaux EM, Debecker DP. Titanosilicate Epoxidation Catalysts: A Review of Challenges and Opportunities. ChemCatChem 2022. [DOI: 10.1002/cctc.202101132] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Valentin Smeets
- Institute of Condensed Matter and Nanosciences (IMCN) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1, Box L4.01.09 1348 Louvain-la-Neuve Belgium
| | - Eric M. Gaigneaux
- Institute of Condensed Matter and Nanosciences (IMCN) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1, Box L4.01.09 1348 Louvain-la-Neuve Belgium
| | - Damien P. Debecker
- Institute of Condensed Matter and Nanosciences (IMCN) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1, Box L4.01.09 1348 Louvain-la-Neuve Belgium
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5
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Gu D, Liang N, Li Q, Li G, Yu D, Liu Y. Selective Photocatalyst for styrene epoxidation with atmospheric O 2 using covalent organic frameworks. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02299g] [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
Fe@POG-OH was synthetized and used to photo-catalyze styrene epoxidation with high selectivity and high conversion at room temperature. O2˙− plays crucial roles in the effective and selective oxidation of styrene to styrene oxide.
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Affiliation(s)
- Defa Gu
- School of Chemistry, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
| | - Nianjie Liang
- School of Chemistry, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
| | - Qiaosheng Li
- School of Chemistry, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
| | - Guangwen Li
- Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China
| | - Dongdong Yu
- School of Chemistry, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
| | - Yuzhou Liu
- School of Chemistry, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
- Beijing Shenyun Zhihe Technology Co., Ltd., 2 Yongcheng North Rd, Beijing, 100094, China
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6
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Kumar J, Ahmed A, Kumar S, Raheem S, Rizvi MA, Shah BA. Visible light-mediated synthesis of α-alkoxy/hydroxy diarylacetaldehydes from terminal alkynes. NEW J CHEM 2022. [DOI: 10.1039/d2nj01614a] [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
A visible light-mediated approach enabling the use of alcohols as nucleophiles in a one-step synthesis of α-alkoxy/hydroxy diarylacetaldehydes is reported.
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Affiliation(s)
- Jaswant Kumar
- Academy of Scientific and Industrial Research (AcSIR), Ghaziabad, 201002, India
- Natural Product & Medicinal Chemistry, CSIR-Indian Institute of Integrative Medicine, Jammu, 180001, India
| | - Ajaz Ahmed
- Academy of Scientific and Industrial Research (AcSIR), Ghaziabad, 201002, India
- Natural Product & Medicinal Chemistry, CSIR-Indian Institute of Integrative Medicine, Jammu, 180001, India
| | - Sourav Kumar
- Academy of Scientific and Industrial Research (AcSIR), Ghaziabad, 201002, India
- Natural Product & Medicinal Chemistry, CSIR-Indian Institute of Integrative Medicine, Jammu, 180001, India
| | - Shabnam Raheem
- Department of Chemistry, University of Kashmir, Srinagar, 190006, India
| | | | - Bhahwal Ali Shah
- Academy of Scientific and Industrial Research (AcSIR), Ghaziabad, 201002, India
- Natural Product & Medicinal Chemistry, CSIR-Indian Institute of Integrative Medicine, Jammu, 180001, India
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7
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Substrate–Solvent Crosstalk—Effects on Reaction Kinetics and Product Selectivity in Olefin Oxidation Catalysis. CHEMISTRY 2021. [DOI: 10.3390/chemistry3030054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In this work, we explored how solvents can affect olefin oxidation reactions catalyzed by MCM-bpy-Mo catalysts and whether their control can be made with those players. The results of this study demonstrated that polar and apolar aprotic solvents modulated the reactions in different ways. Experimental data showed that acetonitrile (aprotic polar) could largely hinder the reaction rate, whereas toluene (aprotic apolar) did not. In both cases, product selectivity at isoconversion was not affected. Further insights were obtained by means of neutron diffraction experiments, which confirmed the kinetic data and allowed for the proposal of a model based on substrate–solvent crosstalk by means of hydrogen bonding. In addition, the model was also validated in the ring-opening reaction (overoxidation) of styrene oxide to benzaldehyde, which progressed when toluene was the solvent (reaching 31% styrene oxide conversion) but was strongly hindered when acetonitrile was used instead (reaching only 7% conversion) due to the establishment of H-bonds in the latter. Although this model was confirmed and validated for olefin oxidation reactions, it can be envisaged that it may also be applied to other catalytic reaction systems where reaction control is critical, thereby widening its use.
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8
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Qi H, Zhang L, Yang J, Su Y, Zeng G, Wang A, Zhang T. Highly efficient Co single-atom catalyst for epoxidation of plant oils. J Chem Phys 2021; 154:131103. [PMID: 33832267 DOI: 10.1063/5.0046166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Epoxidation of bio-derived plant oils is a sustainable route to manufacturing plasticizers, additives in lubricants, and other chemicals. The traditional synthetic approaches suffer from the employment of corrosive mineral acid or expensive peroxides (e.g., H2O2). In this work, we report the epoxidation of plant oils using O2 as the terminal oxidant catalyzed by Co-N-C/SiO2 single-atom catalyst. The single-atom dispersion of cobalt is confirmed by high-angle annular dark field-STEM and x-ray absorption fine structure techniques. In the epoxidation of methyl oleate under mild reaction conditions (35 °C, 0.1 MPa O2), 99% selectivity to the desired product is achieved at full conversion. Even for crude oils, Co-N-C/SiO2 is also effective and good yields of the corresponding epoxides are obtained. In addition, the catalyst is easily recovered and can be reused five times without obvious decay in catalytic activity/selectivity. A superoxide radical involved reaction mechanism is proposed on the basis of kinetic study and EPR experiment.
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Affiliation(s)
- Haifeng Qi
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Leilei Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Jingyi Yang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yang Su
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guang Zeng
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Aiqin Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Tao Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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9
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Hao Z, Liu K, Feng Q, Dong Q, Ma D, Han Z, Lu G, Lin J. Ruthenium(
II
) Complexes Bearing Schiff Base Ligands for Efficient Acceptorless Dehydrogenation of Secondary Alcohols
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000363] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Zhiqiang Hao
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
| | - Kang Liu
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
| | - Qi Feng
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
| | - Qing Dong
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
| | - Dongzhu Ma
- Department of Environment and Chemical Engineering, Hebei College of Industry and Technology Shijiazhuang Hebei 050091 China
| | - Zhangang Han
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
| | - Guo‐Liang Lu
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, The University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Jin Lin
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
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10
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Kalshetti R, Ramana CV. Oxidative Rearrangement of Stilbenes to 2,2-Diaryl-2-hydroxyacetaldehydes. ACS OMEGA 2020; 5:25199-25208. [PMID: 33043198 PMCID: PMC7542859 DOI: 10.1021/acsomega.0c03328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
A one-pot oxone-mediated/iodine-catalyzed oxidative rearrangement of stilbenes leading to 2,2-diaryl-2-hydroxyacetaldehydes is described. Control experiments revealed that a 2,2-diarylacetaldehyde was initially formed that undergoes subsequent α-hydroxylation. The resulting α-hydroxyaldehydes have been subjected to a one-pot Still-Gennari olefination followed by cyclization, leading to 5,5-diaryl-γ-butenolides.
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Affiliation(s)
- Rupali
G. Kalshetti
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- Academy
of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110002, India
| | - Chepuri V. Ramana
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- Academy
of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110002, India
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11
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Yan P, Zhang X, Wang X, Zhang X. Controllable Preparation of Monodisperse Mesoporous Silica from Microspheres to Microcapsules and Catalytic Loading of Au Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:5271-5279. [PMID: 32306735 DOI: 10.1021/acs.langmuir.0c00629] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A unique structural transition from pomegranate-like monodisperse mesoporous silica microspheres (M-MSMs) with tunable mesopores to mesoporous silica microcapsules has been reported. The unique evolution occurred together with varying the cross-linking degrees (CLDs) of templates. Herein, using monodisperse sulfonated cross-linked polystyrene (S-CLPS) as templates, S-CLPS/SiO2 composite microspheres were synthesized by the sol-gel method. Subsequently, the templates were removed by calcination to obtain the M-MSMs or microcapsules. The pore sizes of M-MSMs could be tailored from 3.2 to 7.4 nm by facilely varying the CLDs from 0.5 to 20%. Interestingly, mesoporous silica microcapsules were gradually formed when the CLDs were beyond 20%. Meanwhile, the specific surface area also could be adjusted by this strategy without hardly affecting the monodispersity, and the specific surface area increased to 391.9 m2/g. Significantly, Au@M-MSM was prepared by supporting Au nanoparticles (NPs) on M-MSM and used as nanocatalysts to reduce 4-nitrophenol (4-NP). The ultrathin shell and interconnected three-dimensional (3D) porous structure of M-MSMs can increase the mass transfer and protect the Au NPs from leakage, which reveals high recyclability and high conversion (>95%) after 10 regeneration-catalysis cycles. This approach provides a nanotechnology platform for the preparation of mesoporous silica materials with different microstructures, which will have enormous potential in practical applications involving different molecular sizes.
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Affiliation(s)
- Panyu Yan
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Xinchao Zhang
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Xiaomei Wang
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Xu Zhang
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
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12
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Song T, Ma Z, Ren P, Yuan Y, Xiao J, Yang Y. A Bifunctional Iron Nanocomposite Catalyst for Efficient Oxidation of Alkenes to Ketones and 1,2-Diketones. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05197] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tao Song
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Laoshan District, Qingdao 266101, China
| | - Zhiming Ma
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Laoshan District, Qingdao 266101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peng Ren
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Laoshan District, Qingdao 266101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Youzhu Yuan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering, Xiamen 361005, P. R. China
| | - Jianliang Xiao
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Yong Yang
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Laoshan District, Qingdao 266101, China
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13
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Dorado V, Gil L, Mayoral JA, Herrerías CI, Fraile JM. Synthesis of fatty ketoesters by tandem epoxidation–rearrangement with heterogeneous catalysis. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01899a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fatty ketoesters are obtained from unsaturated fatty esters in a tandem two-step process with a combination of two heterogeneous catalysts, without intermediate purification and with maximum productivity of the catalysts through recycling and reuse.
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Affiliation(s)
- Vicente Dorado
- Departamento de Catálisis y Procesos Catalíticos
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Lena Gil
- Departamento de Catálisis y Procesos Catalíticos
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - José A. Mayoral
- Departamento de Catálisis y Procesos Catalíticos
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Clara I. Herrerías
- Departamento de Catálisis y Procesos Catalíticos
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - José M. Fraile
- Departamento de Catálisis y Procesos Catalíticos
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
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14
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Yao W, Ge C, Zhang Y, Xia XF, Wang L, Wang D. Retracted: Synthesis of 2-Arylisoindoline Derivatives Catalyzed by Reusable 1,2,4-Triazole Iridium on Mesoporous Silica through a Cascade Borrowing Hydrogen Strategy. Chemistry 2019; 25:16099-16105. [PMID: 31588599 DOI: 10.1002/chem.201904095] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Indexed: 01/24/2023]
Abstract
Covalent attachment of a 1,2,4-triazole iridium complex to mesoporous MCM-41 generated a heterogeneous catalyst that was found to be effective in the synthesis of 2-aryl isoindolines, quinolines, cyclic amines, and symmetrical secondary amines through a cascade borrowing hydrogen strategy. Interestingly, the supported heterogeneous iridium catalyst prepared from the 1,2,4-triazole iridium complex and mesoporous MCM-41 exhibited high catalytic activity in the preparation of 2-aryl isoindoline derivatives and symmetrical secondary amines. The catalyst system is highly recyclable for at least five times. Besides the important effect of the triazole, iridium sites grafted on siliceous supports can act as multifunctional catalytic centers and thus greatly enhance the catalytic activity of the catalysts. Furthermore, mechanistic experiments revealed that the reaction is initiated by an initial alcohol dehydrogenation and promoted by an iridium hydride intermediate. Importantly, the direct detection of a diagnostic iridium hydride signal confirmed that the synthesis of 2-aryl isoindolines occurs by a borrowing hydrogen process. This work provides an efficient example of isoindolines synthesis through a borrowing hydrogen strategy.
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Affiliation(s)
- Wei Yao
- School of Chemical and Material Engineering, Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Chenyang Ge
- School of Chemical and Material Engineering, Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei, 443002, P. R. China
| | - Yilin Zhang
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West, Virginia, 26506, USA
| | - Xiao-Feng Xia
- School of Chemical and Material Engineering, Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Long Wang
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei, 443002, P. R. China
| | - Dawei Wang
- School of Chemical and Material Engineering, Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
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15
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Role of the Outer Metal of Double Metal Cyanides on the Catalytic Efficiency in Styrene Oxidation. Catalysts 2019. [DOI: 10.3390/catal9110905] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The catalytic efficiency of double metal cyanide (DMC) has been shown to be very effective in heterogeneous catalysis. The catalytic activity of the outer divalent cations (Mn, Co, Ni, and Cu) of a family of hexacyanocobaltates was examined in the oxidation reaction of styrene, as a model molecule, using tert Butyl Hydroperoxide (TBHP, Luperox®) as an oxidizing agent. The most electronegative outer cations showed the best conversions, with 95% for copper, followed by nickel with 85% conversion of the monomer at atmospheric pressure and temperature of 75 °C. The evidence showed that the catalytic activity and selectivity towards oxidized products are strongly linked to the accurate choice of the outer cation in the DMC together with the oxidizing agent.
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16
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Multifunctionality in Two Families of Dinuclear Lanthanide(III) Complexes with a Tridentate Schiff-Base Ligand. Inorg Chem 2019; 58:9581-9585. [PMID: 31328505 DOI: 10.1021/acs.inorgchem.9b01524] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The employment of N-(2-carboxyphenyl)salicylideneimine in 4f metal chemistry has led to two families of dinuclear complexes depending on the lanthanide(III) used. Representative members exhibit interesting magnetic, optical, and catalytic properties.
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17
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Liu M, Shi S, Zhao L, Wang M, Zhu G, Gao J, Xu J. Wettability Control of Co-SiO 2@Ti-Si Core-Shell Catalyst to Enhance the Oxidation Activity with the In Situ Generated Hydroperoxide. ACS APPLIED MATERIALS & INTERFACES 2019; 11:14702-14712. [PMID: 30945538 DOI: 10.1021/acsami.8b19704] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
With the aim of utilizing O2 as an oxidant, cascade reaction strategy was usually employed by first transforming O2 into the in situ generated hydroperoxide and then oxidized the substrate. To combine the two steps more efficiently to get a higher reaction rate, a series of core-shell catalysts with core and shell having different wettabilities were designed. The catalysts were characterized by transmission electron microscopy, UV-vis spectroscopy, Fourier transform infrared, sessile water contact angle, among other methods. These catalysts were applied in the research of the diphenyl sulfide oxidation by the in situ generated hydroperoxide derived from ethylbenzene oxidation. Through control experiments, the hydrophobic modification in the shell and core will influence different steps of the overall cascade reaction. Further insight into the reaction illustrated that the overall reaction rate was not simply an adduct of the promotion effects from the two steps, which was mainly attributed to the inhibition effect for the co-oxidation of ethylbenzene with diphenyl sulfide. Through the guidance of the relationship, a rationally designed core-shell catalyst with appropriate modifying organic groups showed an enhanced performance of the overall cascade reaction. The rational design of the catalysts would provide a reference for other cascade reactions.
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Affiliation(s)
- Meng Liu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Song Shi
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , People's Republic of China
| | - Li Zhao
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Min Wang
- Zhang Dayu School of Chemistry , Dalian University of Technology , Dalian 116024 , People's Republic of China
| | - Guozhi Zhu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Jin Gao
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , People's Republic of China
| | - Jie Xu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , People's Republic of China
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18
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Cheng Z, Jin W, Liu C. B2pin2-catalyzed oxidative cleavage of a CC double bond with molecular oxygen. Org Chem Front 2019. [DOI: 10.1039/c8qo01412d] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
B2pin2-catalyzed oxidative cleavage of the CC double bond of an olefin with molecular oxygen as the oxidant and oxygen source has been developed.
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Affiliation(s)
- Zhen Cheng
- The Key Laboratory of Oil and Gas Fine Chemicals
- Ministry of Education & Xinjiang Uygur Autonomous Region
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology
- School of Chemistry and Chemical Engineering
- Xinjiang University
| | - Weiwei Jin
- The Key Laboratory of Oil and Gas Fine Chemicals
- Ministry of Education & Xinjiang Uygur Autonomous Region
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology
- School of Chemistry and Chemical Engineering
- Xinjiang University
| | - Chenjiang Liu
- The Key Laboratory of Oil and Gas Fine Chemicals
- Ministry of Education & Xinjiang Uygur Autonomous Region
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology
- School of Chemistry and Chemical Engineering
- Xinjiang University
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19
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Fadhli M, Khedher I, Fraile JM. Enantioselective epoxidation of styrene with TBHP catalyzed by bis(oxazoline)–vanadyl–laponite materials. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2018.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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20
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Liu M, Shi S, Zhao L, Wang M, Zhu G, Zheng X, Gao J, Xu J. Effective Utilization of in Situ Generated Hydroperoxide by a Co–SiO2@Ti–Si Core–Shell Catalyst in the Oxidation Reactions. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03259] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Meng Liu
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Song Shi
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Li Zhao
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Min Wang
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Guozhi Zhu
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xi Zheng
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Jin Gao
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Jie Xu
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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21
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Shipilovskikh SA, Rubtsov AE, Malkov AV. Oxidative Dehomologation of Aldehydes with Oxygen as a Terminal Oxidant. Org Lett 2017; 19:6760-6762. [DOI: 10.1021/acs.orglett.7b03512] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Aleksandr E. Rubtsov
- Department
of Chemistry, Perm State University, Bukireva 15, Perm 614990, Russia
| | - Andrei V. Malkov
- Department
of Chemistry, Loughborough University, Loughborough, Leics LE11
3TU, U.K
- Department
of Organic Chemistry, RUDN University, 6 Miklukho-Maklaya Street, Moscow 117198, Russia
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22
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Přech J. Catalytic performance of advanced titanosilicate selective oxidation catalysts – a review. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2017. [DOI: 10.1080/01614940.2017.1389111] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jan Přech
- Department of Synthesis and Catalysis, J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
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23
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Fadhli M, Khedher I, Fraile JM. Comparison of Ta–MCM-41 and Ti–MCM-41 as catalysts for the enantioselective epoxidation of styrene with TBHP. CR CHIM 2017. [DOI: 10.1016/j.crci.2017.02.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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24
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Shen D, Liu J, Gan L, Huang N, Long M. Controllable synthesis of mesoporous titanosilicates for styrene oxidization using a nanocellulose template strategy. RSC Adv 2017. [DOI: 10.1039/c7ra01598d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A nanocellulose-template strategy is reported for the controllable synthesis of mesoporous titanosilicates as efficient catalysts for the oxidization of styrene.
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Affiliation(s)
- Dazhi Shen
- College of Energy
- Xiamen University
- Xiamen
- China
| | - Jian Liu
- College of Energy
- Xiamen University
- Xiamen
- China
| | - Lihui Gan
- College of Energy
- Xiamen University
- Xiamen
- China
| | | | - Minnan Long
- College of Energy
- Xiamen University
- Xiamen
- China
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25
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Fadhli M, Khedher I, Fraile JM. Modified Ti/MCM-41 catalysts for enantioselective epoxidation of styrene. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.05.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Palumbo C, Tiozzo C, Ravasio N, Psaro R, Carniato F, Bisio C, Guidotti M. An efficient epoxidation of terminal aliphatic alkenes over heterogeneous catalysts: when solvent matters. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01639h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With a peculiar combination of catalyst/oxidant/solvent, it is possible to obtain good yields and excellent selectivities in the epoxidation of 1-octene.
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Affiliation(s)
- C. Palumbo
- CNR-Istituto di Scienze e Tecnologie Molecolari
- Via C. Golgi 19
- 20133 Milano
- Italy
| | - C. Tiozzo
- CNR-Istituto di Scienze e Tecnologie Molecolari
- Via C. Golgi 19
- 20133 Milano
- Italy
| | - N. Ravasio
- CNR-Istituto di Scienze e Tecnologie Molecolari
- Via C. Golgi 19
- 20133 Milano
- Italy
| | - R. Psaro
- CNR-Istituto di Scienze e Tecnologie Molecolari
- Via C. Golgi 19
- 20133 Milano
- Italy
| | - F. Carniato
- Dipartimento di Scienze e Innovazione Tecnologica and Nano-SISTEMI Interdisciplinary Centre
- Università del Piemonte Orientale “A. Avogadro”
- 15121 Alessandria
- Italy
| | - C. Bisio
- CNR-Istituto di Scienze e Tecnologie Molecolari
- Via C. Golgi 19
- 20133 Milano
- Italy
- Dipartimento di Scienze e Innovazione Tecnologica and Nano-SISTEMI Interdisciplinary Centre
| | - M. Guidotti
- CNR-Istituto di Scienze e Tecnologie Molecolari
- Via C. Golgi 19
- 20133 Milano
- Italy
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27
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Guo W, Zhang T, Zhang B, Feng Y, Chen S, Mi Z. Studies on sodium polymers based on di(1H-tetrazol-5-yl)methanone oxime. RSC Adv 2016. [DOI: 10.1039/c6ra15591j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
[Na(Hbto)(H2O)2·2H2O]n (1), [(NH3OH)2Na2(bto)2(H2O)4·H2O]n (2) and [(NH3OH)Na(bto)(H2O)2]n (3), eco-friendly coordination polymers, have been synthesized.
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Affiliation(s)
- Weiming Guo
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Tonglai Zhang
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Bo Zhang
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Yongan Feng
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Sitong Chen
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Zhenhao Mi
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- China
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