1
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Martina K, Moran MJ, Manzoli M, Trukhan MV, Kuhn S, Van Gerven T, Cravotto G. Copper-Catalyzed Continuous-Flow Transfer Hydrogenation of Nitroarenes to Anilines: A Scalable and Reliable Protocol. Org Process Res Dev 2024; 28:1515-1528. [PMID: 38783856 PMCID: PMC11110069 DOI: 10.1021/acs.oprd.3c00144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 11/16/2023] [Accepted: 11/29/2023] [Indexed: 05/25/2024]
Abstract
A robust supported catalyst that is made up of copper nanoparticles on Celite has been successfully prepared for the selective transfer hydrogenation of aromatic nitrobenzenes to anilines under continuous flow. The method is efficient and environmentally benign thanks to the absence of hydrogen gas and precious metals. Long-term stability studies show that the catalytic system is able to achieve very high nitrobenzene conversion (>99%) when working for up to 145 h. The versatility of the transfer hydrogenation system has been tested using representative examples of nitroarenes, with moderate-to-excellent yields being obtained. The packed bed reactor (PBR) permits the use of a setup that can provide products via simple isolation by SPE without the need for further purification. The recovery and reuse of either EG or the ion-exchange resin leads to consistent waste reduction; therefore, E-factor distribution analysis has highlighted the environmental efficiency of this synthetic protocol.
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Affiliation(s)
- Katia Martina
- Drug
Science and Technology Department and NIS−Interdepartmental
Centre for Nanomaterials for Industry and Sustainability, University of Turin, via Pietro Giuria 9, 10125 Turin, Italy
| | - Maria Jesus Moran
- Drug
Science and Technology Department and NIS−Interdepartmental
Centre for Nanomaterials for Industry and Sustainability, University of Turin, via Pietro Giuria 9, 10125 Turin, Italy
| | - Maela Manzoli
- Drug
Science and Technology Department and NIS−Interdepartmental
Centre for Nanomaterials for Industry and Sustainability, University of Turin, via Pietro Giuria 9, 10125 Turin, Italy
| | - Mikhail V. Trukhan
- Drug
Science and Technology Department and NIS−Interdepartmental
Centre for Nanomaterials for Industry and Sustainability, University of Turin, via Pietro Giuria 9, 10125 Turin, Italy
| | - Simon Kuhn
- Department
of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Tom Van Gerven
- Department
of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Giancarlo Cravotto
- Drug
Science and Technology Department and NIS−Interdepartmental
Centre for Nanomaterials for Industry and Sustainability, University of Turin, via Pietro Giuria 9, 10125 Turin, Italy
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2
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Sitinjak EM, Masmur I, Hutajulu PE, Marbun NVMD, Gultom G. Electrospun Nanofiber Mats with Embedded Zinc Oxysulfide for Photoreduction of Nitrobenzene to Aniline under Mild Condition. ACS OMEGA 2023; 8:35328-35335. [PMID: 37779950 PMCID: PMC10536102 DOI: 10.1021/acsomega.3c05171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 08/29/2023] [Indexed: 10/03/2023]
Abstract
In this work, electrospun nanofiber embedded with zinc oxysulfide (Zn(O,S)) has been demonstrated as an efficient and robust photocatalyst for hydrogenation of nitrobenzene to aniline under solar light irradiation at mild conditions with methanol as the hole scavenger. The solid solution state of Zn(O,S) in electrospun nanofiber was successfully revealed by high-resolution transmission electron microscopy and X-ray diffraction analyses in which the lattice fringes and diffraction planes located in between those of ZnO and ZnS phases. Moreover, the electrochemical and optical properties of Zn(O,S) embedded in polyethylene oxide (PEO) nanofiber are found to be better than those of ZnO and ZnS indicating more efficient photocatalytic activities as well. The photocatalytic hydrogenation of nitrobenzene to aniline occurred completely within 2 h of the photocatalytic reaction with a reusability of 95% after five consecutive runs. Finally, the mechanism of photocatalytic hydrogenation by Zn(O,S) embedded in the PEO (PZOS) nanofiber involves a total of six electrons (e-) and six protons (H+) to hydrogenate nitrobenzene to nitrosobenzene, phenylhydroxylamine, and aniline.
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Affiliation(s)
- Elvri Melliaty Sitinjak
- Department
of Chemical Engineering, Politeknik Teknologi
Kimia Industri, Medan 20228, Indonesia
| | - Indra Masmur
- Department
of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan 20155, Indonesia
| | - Poltak Evencus Hutajulu
- Department
of Palm Oil Agribusiness, Politeknik Teknologi
Kimia Industri, Medan 20228, Indonesia
| | | | - Golfrid Gultom
- Department
of Mechanical Engineering, Politeknik Teknologi
Kimia Industri, Medan 20228, Indonesia
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3
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Nde DT, Park J, Lee SH, Lee J, Lee HJ. Ultrawide Hydrazine Concentration Monitoring Sensor Comprising Ir-Ni Nanoparticles Decorated with Multi-Walled Carbon Nanotubes in On-Site Alkaline Fuel Cell Operation. CHEMSUSCHEM 2023; 16:e202201608. [PMID: 36480310 DOI: 10.1002/cssc.202201608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/21/2022] [Indexed: 06/17/2023]
Abstract
A highly sensitive amperometric hydrazine monitoring sensor offering an ultrawide dynamic range of 5 μM to 1 M in alkaline media (e. g., 1 M KOH) was developed via co-electrodepositing iridium-nickel alloy nanoparticles (NPs) functionalized with multi-walled carbon nanotubes (Ir-Ni-MWCNTs) on a disposable screen-printed carbon electrode. The synergistic interaction of MWCNTs with Ir-Ni alloy NPs resulted in enlarged active surface area, rapid electron transfer, and alkaline media stability with an onset potential of -0.12 V (vs. Ag/AgCl) toward hydrazine oxidation. A limit of detection for hydrazine was 0.81 μM with guaranteed reproducibility, repeatability, and storage stability alongside a superb selectivity toward ethanolamine, urea, dopamine, NaBH4 , NH4 OH, NaNO2 , and Na2 CO3 . The sensor was finally applied to on-site monitoring of the carbon-free hydrazine concentration at the anode and cathode of a hydrazine fuel cell, providing more insight into the hydrazine oxidation process during cell operation.
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Affiliation(s)
- Dieudonne Tanue Nde
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehakro, Buk-gu, Daegu-city, 41566, Republic of Korea
| | - Jihyeon Park
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- International Future Research Center of Chemical Energy Storage and Conversion Processes (iFRC-CHESS), Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Sang Hyuk Lee
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehakro, Buk-gu, Daegu-city, 41566, Republic of Korea
| | - Jaeyoung Lee
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- International Future Research Center of Chemical Energy Storage and Conversion Processes (iFRC-CHESS), Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- Ertl Center for Electrochemical and Catalysis, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Hye Jin Lee
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehakro, Buk-gu, Daegu-city, 41566, Republic of Korea
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4
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Khan S, Shah SS, Janjua NK, Yurtcan AB, Nazir MT, Katubi KM, Alsaiari NS. Alumina supported copper oxide nanoparticles (CuO/Al 2O 3) as high-performance electrocatalysts for hydrazine oxidation reaction. CHEMOSPHERE 2023; 315:137659. [PMID: 36603674 DOI: 10.1016/j.chemosphere.2022.137659] [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: 10/14/2022] [Revised: 11/30/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
Direct hydrazine liquid fuel cell (DHFC) is perceived as effectual energy generating mean owing to high conversion efficiency and energy density. However, the development of well-designed, cost effective and high performance electrocatalysts is the paramount to establish DHFCs as efficient energy generating technology. Herein, gamma alumina supported copper oxide nanocatalysts (CuO/Al2O3) are synthesized via impregnation method and investigated for their electrocatalytic potential towards hydrazine oxidation reaction. CuO with different weight percentages i.e., 4%, 8%, 12%, 16% and 20% are impregnated on gamma alumina support. X-ray diffraction analysis revealed the cubic crystal structure and nanosized particles of the prepared metal oxides. Transmission electron microscopy also referred to the cubic morphology and nanoparticle formation. Electrochemical oxidation potential of the CuO/Al2O3 nanoparticles is explored via cyclic voltammetry as the analytical tool. Optimization of conditions and electrocatalytic studies shown that 16% CuO/Al2O3 presented the best electronic properties towards N2H2 oxidation reaction. BET analysis ascertained the high surface area (131.2546 m2 g1) and large pore diameter (0.279605 cm³ g-1) for 16% CuO/Al2O3. Nanoparticle formation, high porosity and enlarged surface area of the proposed catalysts resulted in significant oxidation current output (600 μA), high current density (8.2 mA cm-2) and low charge transfer resistance (3.7 kΩ). Electrooxidation of hydrazine on such an affordable and novel electrocatalyst opens a gateway to further explore the metal oxide impregnated alumina materials for different electrochemical applications.
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Affiliation(s)
- Safia Khan
- Department of Chemistry, Quaid-i-Azam University Islamabad, 45320, Pakistan; Faculty of Chemical Engineering, Ataturk University, Erzurum, 25240, Turkey.
| | - Syed Sakhawat Shah
- Department of Chemistry, Quaid-i-Azam University Islamabad, 45320, Pakistan.
| | | | | | - Muhammad Tariq Nazir
- School of Manufacturing Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Khadijah Mohammedsaleh Katubi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia.
| | - Norah Salem Alsaiari
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia.
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5
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Yaghmaei M, Lanterna AE, Scaiano JC. Nitro to amine reductions using aqueous flow catalysis under ambient conditions. iScience 2021; 24:103472. [PMID: 34950857 PMCID: PMC8671935 DOI: 10.1016/j.isci.2021.103472] [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: 07/02/2021] [Revised: 10/09/2021] [Accepted: 11/12/2021] [Indexed: 12/02/2022] Open
Abstract
A catalyst based on Pd on glass wool (Pd@GW) shows exceptional performance and durability for the reduction of nitrobenzene to aniline at room temperature and ambient pressure in aqueous solutions. The reaction is performed in a flow system and completed with 100% conversion under a variety of flow rates, 2 to 100 mLmin−1 (normal laboratory fast flow conditions). Sodium borohydride or dihydrogen perform well as reducing agents. Scale-up of the reaction to flows of 100 mLmin−1 also shows high conversions and robust catalytic performance. Catalyst deactivation can be readily corrected by flowing a NaBH4 solution. The catalytic system proves to be generally efficient, performing well with a range of nitroaromatic compounds. The shelf life of the catalyst is excellent and its reusability after 6-8 months of storage showed the same performance as for the fresh catalyst. Palladium on glass wool catalyzes reduction of nitrobenzene to aniline Catalytic flow process at atmospheric temperature and pressure in aqueous media Facile catalyst synthesis using inexpensive glass wool and low palladium loading Sustainable chemical process using sodium borohydride or hydrogen gas
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Affiliation(s)
- Mahzad Yaghmaei
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Anabel E Lanterna
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Juan C Scaiano
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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6
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Kim HW, Byun S, Kim SM, Kim HJ, Lei C, Kang DY, Cho A, Kim BM, Park JK. Simple reversible fixation of a magnetic catalyst in a continuous flow system: ultrafast reduction of nitroarenes and subsequent reductive amination using ammonia borane. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02021g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Continuous reductive amination was performed using NH3BH3 through reversible magnetic bimetallic fixation at room temperature.
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Affiliation(s)
- Hong Won Kim
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
| | - Sangmoon Byun
- Department of Chemistry
- Seoul National University
- Seoul 08826
- Korea
| | - Seong Min Kim
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
| | - Ha Joon Kim
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
| | - Cao Lei
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
| | - Dong Yun Kang
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
| | - Ahra Cho
- Department of Chemistry
- Seoul National University
- Seoul 08826
- Korea
| | - B. Moon Kim
- Department of Chemistry
- Seoul National University
- Seoul 08826
- Korea
| | - Jin Kyoon Park
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
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7
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Low-temperature copper hydrosilicates: catalysts for reduction of aromatic nitro compounds with molecular hydrogen. Russ Chem Bull 2019. [DOI: 10.1007/s11172-019-2665-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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8
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Li X, Qi T, Wang J, She W, Mao G, Yan P, Li W, Li G. Enhanced catalytic performance of nitrogen-doped carbon supported FeOx-based catalyst derived from electrospun nanofiber crosslinked N, Fe-containing MOFs for efficient hydrogenation of nitroarenes. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110544] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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9
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Roberts EJ, Karadaghi LR, Wang L, Malmstadt N, Brutchey RL. Continuous Flow Methods of Fabricating Catalytically Active Metal Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2019; 11:27479-27502. [PMID: 31287651 DOI: 10.1021/acsami.9b07268] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
One of the obstacles preventing the commercialization of colloidal nanoparticle catalysts is the difficulty in fabricating these materials at scale while maintaining a high level of control over their resulting morphologies, and ultimately, their properties. Translation of batch-scale solution nanoparticle syntheses to continuous flow reactors has been identified as one method to address the scaling issue. The superior heat and mass transport afforded by the high surface-area-to-volume ratios of micro- and millifluidic channels allows for high control over reaction conditions and oftentimes results in decreased reaction times, higher yields, and/or more monodisperse size distributions compared to an analogous batch reaction. Furthermore, continuous flow reactors are automatable and have environmental health and safety benefits, making them practical for commercialization. Herein, a discussion of continuous flow methods, reactor design, and potential challenges is presented. A thorough account of the implementation of these technologies for the fabrication of catalytically active metal nanoparticles is reviewed for hydrogenation, electrocatalysis, and oxidation reactions.
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Affiliation(s)
- Emily J Roberts
- Department of Chemistry , University of Southern California , 840 Downey Way , Los Angeles , California 90089-0744 , United States
| | - Lanja R Karadaghi
- Department of Chemistry , University of Southern California , 840 Downey Way , Los Angeles , California 90089-0744 , United States
| | - Lu Wang
- Mork Family Department of Chemical Engineering and Materials Science , University of Southern California , 925 Bloom Walk , Los Angeles , California 90089-1211 , United States
| | - Noah Malmstadt
- Department of Chemistry , University of Southern California , 840 Downey Way , Los Angeles , California 90089-0744 , United States
- Mork Family Department of Chemical Engineering and Materials Science , University of Southern California , 925 Bloom Walk , Los Angeles , California 90089-1211 , United States
| | - Richard L Brutchey
- Department of Chemistry , University of Southern California , 840 Downey Way , Los Angeles , California 90089-0744 , United States
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10
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Anbu N, Vijayan C, Dhakshinamoorthy A. A Versatile, Mild and Selective Reduction of Nitroarenes to Aminoarenes Catalyzed by CeO2
Nanoparticles with Hydrazine Hydrate. ChemistrySelect 2019. [DOI: 10.1002/slct.201803566] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nagaraj Anbu
- School of Chemistry; Madurai Kamaraj University; Madurai- 625 021, Tamil Nadu India
| | - Chellappa Vijayan
- School of Chemistry; Madurai Kamaraj University; Madurai- 625 021, Tamil Nadu India
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11
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Formenti D, Ferretti F, Scharnagl FK, Beller M. Reduction of Nitro Compounds Using 3d-Non-Noble Metal Catalysts. Chem Rev 2018; 119:2611-2680. [PMID: 30516963 DOI: 10.1021/acs.chemrev.8b00547] [Citation(s) in RCA: 355] [Impact Index Per Article: 59.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The reduction of nitro compounds to the corresponding amines is one of the most utilized catalytic processes in the fine and bulk chemical industry. The latest development of catalysts with cheap metals like Fe, Co, Ni, and Cu has led to their tremendous achievements over the last years prompting their greater application as "standard" catalysts. In this review, we will comprehensively discuss the use of homogeneous and heterogeneous catalysts based on non-noble 3d-metals for the reduction of nitro compounds using various reductants. The different systems will be revised considering both the catalytic performances and synthetic aspects highlighting also their advantages and disadvantages.
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Affiliation(s)
- Dario Formenti
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein-Straße 29a , 18059 Rostock , Germany
| | - Francesco Ferretti
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein-Straße 29a , 18059 Rostock , Germany
| | - Florian Korbinian Scharnagl
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein-Straße 29a , 18059 Rostock , Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein-Straße 29a , 18059 Rostock , Germany
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12
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Dimitriou E, Jones RH, Pritchard RG, Miller GJ, O'Brien M. Gas-liquid flow hydrogenation of nitroarenes: Efficient access to a pharmaceutically relevant pyrrolobenzo[1,4]diazepine scaffold. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Ai Y, Liu L, Zhang C, Qi L, He M, Liang Z, Sun HB, Luo G, Liang Q. Amorphous Flowerlike Goethite FeOOH Hierarchical Supraparticles: Superior Capability for Catalytic Hydrogenation of Nitroaromatics in Water. ACS APPLIED MATERIALS & INTERFACES 2018; 10:32180-32191. [PMID: 30179446 DOI: 10.1021/acsami.8b10711] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Fabrication of anilines from the corresponding nitroaromatics is a hot topic both for academia and for industry; however, conducting this protocol in water over a noble-metal-free catalytic system is still a great challenge. Continuous efforts are being made on exploiting novel catalysts for this transformation. In this work, we developed a scalable method for synthesizing the uniform flowerlike amorphous α-FeOOH hierarchical supraparticles. The well-defined amorphous α-FeOOH was prepared through an environmentally benign method, which is hydrolysis of the self-assembled iron glycolate at room temperature. Compared with other iron-only catalysts, this flowerlike amorphous α-FeOOH hierarchical supraparticle catalyst exhibits the best performance in the catalytic reduction of nitroaromatics to corresponding anilines by using water as the reaction solvent (turn over frequency is 106 h-1 for 4-nitrophenol in water). The further results indicated that the amorphous structure, special nanostructures, and adsorption-desorption synergy offered excellent activity. The kinetics study shows that the reduction of 4-nitrophenol is first order for α-FeOOH, and the apparent active energy Ea is 75.9 kJ mol-1. Furthermore, this catalyst can be used for eight times without obvious catalytic activity loss. We believe that this novel flowerlike amorphous α-FeOOH hierarchical supraparticle catalyst is a milestone in the reduction of nitro compounds.
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Affiliation(s)
- Yongjian Ai
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Key Lab of Microanalytical Methods & Instrumentation, Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
- Department of Chemistry , Northeastern University , Shenyang 110819 , P. R. China
| | - Lei Liu
- Department of Chemistry , Northeastern University , Shenyang 110819 , P. R. China
| | - Cheng Zhang
- Department of Chemistry , Northeastern University , Shenyang 110819 , P. R. China
| | - Li Qi
- Department of Chemistry , Northeastern University , Shenyang 110819 , P. R. China
| | - Mengqi He
- Department of Chemistry , Northeastern University , Shenyang 110819 , P. R. China
| | - Zhe Liang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Key Lab of Microanalytical Methods & Instrumentation, Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
| | - Hong-Bin Sun
- Department of Chemistry , Northeastern University , Shenyang 110819 , P. R. China
| | - Guoan Luo
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health , Macau University of Science and Technology , Macau 999078 , P. R. China
| | - Qionglin Liang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Key Lab of Microanalytical Methods & Instrumentation, Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
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14
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Gonzalez-Rodriguez R, Granitzer P, Rumpf K, Coffer JL. New MRI contrast agents based on silicon nanotubes loaded with superparamagnetic iron oxide nanoparticles. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180697. [PMID: 30225066 PMCID: PMC6124042 DOI: 10.1098/rsos.180697] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 06/20/2018] [Indexed: 05/03/2023]
Abstract
This article describes the preparation and fundamental properties of a new possible material as a magnetic resonance imaging contrast agent based on the incorporation of preformed iron oxide (Fe3O4) nanocrystals into hollow silicon nanotubes (Si NTs). Specifically, superparamagnetic Fe3O4 nanoparticles of two different average sizes (5 nm and 8 nm) were loaded into Si NTs of two different shell thicknesses (40 nm and 70 nm). To achieve proper aqueous solubility, the NTs were functionalized with an outer polyethylene glycol-diacid (600) moiety via an aminopropyl linkage. Relaxometry parameters r1 and r2 were measured, with the corresponding r2/r1 ratios in phosphate buffered saline confirming the expected negative contrast agent behaviour for these materials. For a given nanocrystal size, the observed r2 values are found to be inversely proportional to NT wall thickness, thereby demonstrating the role of nanostructured silicon template on associated relaxometry properties.
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Affiliation(s)
| | - Petra Granitzer
- Institute of Physics, Karl-Franzens-University Graz, Universitaetsplatz 5, 8010 Graz, Austria
| | - Klemens Rumpf
- Institute of Physics, Karl-Franzens-University Graz, Universitaetsplatz 5, 8010 Graz, Austria
| | - Jeffery L. Coffer
- Department of Chemistry, Texas Christian University, Fort Worth, TX 76129USA
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15
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16
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Zhang Y, Liu C, Fan G, Yang L, Li F. A robust core–shell nanostructured nickel–iron alloy@nitrogen-containing carbon catalyst for the highly efficient hydrogenation of nitroarenes. Dalton Trans 2018; 47:13668-13679. [DOI: 10.1039/c8dt03033b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A core–shell nanostructured NiFe alloy@ nitrogen-containing carbon catalyst exhibited robust catalytic performance in the hydrogenation of nitroarenes.
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Affiliation(s)
- Yaowen Zhang
- State Key Laboratory of Chemical Resources Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Chunling Liu
- State Key Laboratory of Chemical Resources Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Guoli Fan
- State Key Laboratory of Chemical Resources Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Lan Yang
- State Key Laboratory of Chemical Resources Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Feng Li
- State Key Laboratory of Chemical Resources Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing
- China
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17
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Doherty S, Knight JG, Backhouse T, Bradford A, Saunders F, Bourne RA, Chamberlain TW, Stones R, Clayton A, Lovelock K. Highly efficient aqueous phase reduction of nitroarenes catalyzed by phosphine-decorated polymer immobilized ionic liquid stabilized PdNPs. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02557b] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Phosphino-decorated polymer immobilised ionic liquid-stabilised PdNPs are highly efficient catalysts for the aqueous phase hydrogenation and transfer hydrogenation of aromatic nitro compounds in batch and continuous flow.
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18
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Ai Y, He M, Lv Q, Liu L, Sun HB, Ding M, Liang Q. 3D Porous Carbon Framework Stabilized Ultra-Uniform Nano γ-Fe2
O3
: A Useful Catalyst System. Chem Asian J 2017; 13:89-98. [DOI: 10.1002/asia.201701457] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Indexed: 01/15/2023]
Affiliation(s)
- Yongjian Ai
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Beijing Key Lab of Microanalytical Methods & Instrumentation; Department of Chemistry; Tsinghua University; Beijing 100084 P. R. China
- Department of Chemistry; Northeastern University; Shenyang 110819 P. R. China
| | - Mengqi He
- Department of Chemistry; Northeastern University; Shenyang 110819 P. R. China
| | - Qianrui Lv
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Beijing Key Lab of Microanalytical Methods & Instrumentation; Department of Chemistry; Tsinghua University; Beijing 100084 P. R. China
| | - Lei Liu
- Department of Chemistry; Northeastern University; Shenyang 110819 P. R. China
| | - Hong-bin Sun
- Department of Chemistry; Northeastern University; Shenyang 110819 P. R. China
| | - Mingyu Ding
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Beijing Key Lab of Microanalytical Methods & Instrumentation; Department of Chemistry; Tsinghua University; Beijing 100084 P. R. China
| | - Qionglin Liang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Beijing Key Lab of Microanalytical Methods & Instrumentation; Department of Chemistry; Tsinghua University; Beijing 100084 P. R. China
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19
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Lee NR, Bikovtseva AA, Cortes-Clerget M, Gallou F, Lipshutz BH. Carbonyl Iron Powder: A Reagent for Nitro Group Reductions under Aqueous Micellar Catalysis Conditions. Org Lett 2017; 19:6518-6521. [PMID: 29206473 DOI: 10.1021/acs.orglett.7b03216] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An especially mild, safe, efficient, and environmentally responsible reduction of aromatic and heteroaromatic nitro-group-containing educts is reported that utilizes very inexpensive carbonyl iron powder (CIP), a highly active commercial grade of iron powder. These reductions are conducted in the presence of nanomicelles composed of TPGS-750-M in water, a recyclable aqueous micellar reaction medium. This new technology also shows broad scope and scalability and presents opportunities for multistep one-pot sequences involving this reducing agent.
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Affiliation(s)
- Nicholas R Lee
- Department of Chemistry and Biochemistry, University of California , Santa Barbara, California 93106, United States
| | - Agata A Bikovtseva
- Department of Chemistry and Biochemistry, University of California , Santa Barbara, California 93106, United States
| | - Margery Cortes-Clerget
- Department of Chemistry and Biochemistry, University of California , Santa Barbara, California 93106, United States
| | - Fabrice Gallou
- Chemical & Analytical Development, Novartis Pharma AG , 4056 Basel, Switzerland
| | - Bruce H Lipshutz
- Department of Chemistry and Biochemistry, University of California , Santa Barbara, California 93106, United States
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20
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Shesterkina AA, Shuvalova EV, Redina EA, Kirichenko OA, Tkachenko OP, Mishin IV, Kustov LM. Silica-supported iron oxide nanoparticles: unexpected catalytic activity in hydrogenation of phenylacetylene. MENDELEEV COMMUNICATIONS 2017. [DOI: 10.1016/j.mencom.2017.09.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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21
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Prathap KJ, Wu Q, Olsson RT, Dinér P. Catalytic Reductions and Tandem Reactions of Nitro Compounds Using in Situ Prepared Nickel Boride Catalyst in Nanocellulose Solution. Org Lett 2017; 19:4746-4749. [PMID: 28858520 DOI: 10.1021/acs.orglett.7b02090] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A mild and efficient method for the in situ reduction of a wide range of nitroarenes and aliphatic nitrocompounds to amines in excellent yields using nickel chloride/sodium borohydride in a solution of TEMPO-oxidized nanocellulose in water (0.01 wt %) is described. The nanocellulose has a stabilizing effect on the catalyst, which increases the turnover number and enables low loading of nickel catalyst (0.1-0.25 mol % NiCl2). In addition, two tandem protocols were developed in which the in situ formed amines were either Boc-protected to carbamates or further reacted with an epoxide to yield β-amino alcohols in excellent yields.
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Affiliation(s)
- Kaniraj Jeya Prathap
- Department of Chemistry, Organic Chemistry, KTH Royal Institute of Technology , Teknikringen 30, 10044 Stockholm, Sweden
| | - Qiong Wu
- Department of Fiber and Polymer Technology, Polymeric Materials, KTH Royal Institute of Technology , Teknikringen 58, 10044 Stockholm, Sweden
| | - Richard T Olsson
- Department of Fiber and Polymer Technology, Polymeric Materials, KTH Royal Institute of Technology , Teknikringen 58, 10044 Stockholm, Sweden
| | - Peter Dinér
- Department of Chemistry, Organic Chemistry, KTH Royal Institute of Technology , Teknikringen 30, 10044 Stockholm, Sweden
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22
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Plutschack MB, Pieber B, Gilmore K, Seeberger PH. The Hitchhiker's Guide to Flow Chemistry ∥. Chem Rev 2017; 117:11796-11893. [PMID: 28570059 DOI: 10.1021/acs.chemrev.7b00183] [Citation(s) in RCA: 1020] [Impact Index Per Article: 145.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Flow chemistry involves the use of channels or tubing to conduct a reaction in a continuous stream rather than in a flask. Flow equipment provides chemists with unique control over reaction parameters enhancing reactivity or in some cases enabling new reactions. This relatively young technology has received a remarkable amount of attention in the past decade with many reports on what can be done in flow. Until recently, however, the question, "Should we do this in flow?" has merely been an afterthought. This review introduces readers to the basic principles and fundamentals of flow chemistry and critically discusses recent flow chemistry accounts.
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Affiliation(s)
- Matthew B Plutschack
- Department of Biomolecular Systems, Max-Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Bartholomäus Pieber
- Department of Biomolecular Systems, Max-Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Kerry Gilmore
- Department of Biomolecular Systems, Max-Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Peter H Seeberger
- Department of Biomolecular Systems, Max-Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam, Germany.,Institute of Chemistry and Biochemistry, Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin , Arnimallee 22, 14195 Berlin, Germany
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23
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Janjua MRSA, Jamil S, Jahan N, Khan SR, Mirza S. Morphologically controlled synthesis of ferric oxide nano/micro particles and their catalytic application in dry and wet media: a new approach. Chem Cent J 2017; 11:49. [PMID: 29086833 PMCID: PMC5451378 DOI: 10.1186/s13065-017-0278-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 05/25/2017] [Indexed: 02/02/2023] Open
Abstract
Morphologically controlled synthesis of ferric oxide nano/micro particles has been carried out by using solvothermal route. Structural characterization displays that the predominant morphologies are porous hollow spheres, microspheres, micro rectangular platelets, octahedral and irregular shaped particles. It is also observed that solvent has significant effect on morphology such as shape and size of the particles. All the morphologies obtained by using different solvents are nearly uniform with narrow size distribution range. The values of full width at half maxima (FWHM) of all the products were calculated to compare their size distribution. The FWHM value varies with size of the particles for example small size particles show polydispersity whereas large size particles have shown monodispersity. The size of particles increases with decrease in polarity of the solvent whereas their shape changes from spherical to rectangular/irregular with decrease in polarity of the solvent. The catalytic activities of all the products were investigated for both dry and wet processes such as thermal decomposition of ammonium per chlorate (AP) and reduction of 4-nitrophenol in aqueous media. The results indicate that each product has a tendency to act as a catalyst. The porous hollow spheres decrease the thermal decomposition temperature of AP by 140 °C and octahedral Fe3O4 particles decrease the decomposition temperature by 30 °C. The value of apparent rate constant (kapp) of reduction of 4-NP has also been calculated.
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Affiliation(s)
| | - Saba Jamil
- Laboratory of Superlight Materials and Nano Chemistry, Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan.
| | - Nazish Jahan
- Laboratory of Superlight Materials and Nano Chemistry, Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Shanza Rauf Khan
- Laboratory of Superlight Materials and Nano Chemistry, Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Saima Mirza
- Punjab Bio Energy Project of Punjab Government, University of Agriculture, Faisalabad, 38000, Pakistan
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24
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Ai Y, Liu L, Jing K, Qi L, Fan Z, Zhou J, Sun HB, Shao Z, Liang Q. Noncovalently functionalized carbon nanotubes immobilized Fe–Bi bimetallic oxides as a heterogeneous nanocatalyst for reduction of nitroaromatics. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.nanoso.2017.03.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Reddy PL, Tripathi M, Arundhathi R, Rawat DS. Chemoselective Hydrazine-mediated Transfer Hydrogenation of Nitroarenes by Co3O4Nanoparticles Immobilized on an Al/Si-mixed Oxide Support. Chem Asian J 2017; 12:785-791. [DOI: 10.1002/asia.201700025] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Indexed: 12/23/2022]
Affiliation(s)
- P. Linga Reddy
- Department of Chemistry; University of Delhi; Delhi- 110007 India
| | - Mohit Tripathi
- Department of Chemistry; University of Delhi; Delhi- 110007 India
| | - R. Arundhathi
- Corporate Research&Development Centre; Bharat Petroleum Corporation Limited, Greater Noida; Uttar Pradesh- 201306 India
| | - Diwan S. Rawat
- Department of Chemistry; University of Delhi; Delhi- 110007 India
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26
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Su C. Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature. JOURNAL OF HAZARDOUS MATERIALS 2017; 322:48-84. [PMID: 27477792 PMCID: PMC7306924 DOI: 10.1016/j.jhazmat.2016.06.060] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 06/27/2016] [Accepted: 06/30/2016] [Indexed: 05/12/2023]
Abstract
This review focuses on environmental implications and applications of engineered magnetite (Fe3O4) nanoparticles (MNPs) as a single phase or a component of a hybrid nanocomposite that exhibits superparamagnetism and high surface area. MNPs are synthesized via co-precipitation, thermal decomposition and combustion, hydrothermal process, emulsion, microbial process, and green approaches. Aggregation/sedimentation and transport of MNPs depend on surface charge of MNPs and geochemical parameters such as pH, ionic strength, and organic matter. MNPs generally have low toxicity to humans and ecosystem. MNPs are used for constructing chemical/biosensors and for catalyzing a variety of chemical reactions. MNPs are used for air cleanup and carbon sequestration. MNP nanocomposites are designed as antimicrobial agents for water disinfection and flocculants for water treatment. Conjugated MNPs are widely used for adsorptive/separative removal of organics, dyes, oil, arsenic, phosphate, molybdate, fluoride, selenium, Cr(VI), heavy metal cations, radionuclides, and rare earth elements. MNPs can degrade organic/inorganic contaminants via chemical reduction or catalyze chemical oxidation in water, sediment, and soil. Future studies should further explore mechanisms of MNP interactions with other nanomaterials and contaminants, economic and green approaches of MNP synthesis, and field scale demonstration of MNP utilization.
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Affiliation(s)
- Chunming Su
- Ground Water and Ecosystems Restoration Division, National Risk Management Research Laboratory, Office of Research and Development, United States Environmental Protection Agency, 919 Kerr Research Drive, Ada, OK 74820, USA.
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27
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Chen YN, Liu T, Zhang Q, Shang C, Wang H. Nanostructured biogel templated synthesis of Fe3O4 nanoparticles and its application for catalytic degradation of xylenol orange. RSC Adv 2017. [DOI: 10.1039/c6ra24926d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Using jellyfish mesoglea as a natural template, nanocomposite hydrogels with well-dispersed Fe3O4 nanoparticles are obtained.
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Affiliation(s)
- Ya-Nan Chen
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing
- P. R. China
| | - Tianqi Liu
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing
- P. R. China
| | - Qin Zhang
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing
- P. R. China
| | - Cong Shang
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing
- P. R. China
| | - Huiliang Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing
- P. R. China
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28
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Continuous flow room temperature reductive aqueous homo-coupling of aryl halides using supported Pd catalysts. Sci Rep 2016; 6:32719. [PMID: 27600989 PMCID: PMC5013534 DOI: 10.1038/srep32719] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 08/03/2016] [Indexed: 11/15/2022] Open
Abstract
A convenient and environmentally friendly protocol for the preparation of biaryls at room temperature under continuous flow conditions is reported. A simple reductive homo-coupling Ullmann-type reaction was performed in an H-Cube mini using commercially available supported Pd catalysts under mild reaction conditions, with quantitative conversion to target products. Commercial Pd catalysts were found to be highly stable under the investigated reaction conditions, with a minimum Pd leaching into solution after several reaction runs (ca. 20 h on stream).
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29
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Feng J, Handa S, Gallou F, Lipshutz BH. Safe and Selective Nitro Group Reductions Catalyzed by Sustainable and Recyclable Fe/ppm Pd Nanoparticles in Water at Room Temperature. Angew Chem Int Ed Engl 2016; 55:8979-83. [DOI: 10.1002/anie.201604026] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 05/17/2016] [Indexed: 01/15/2023]
Affiliation(s)
- Jie Feng
- Dept. of Chemistry and Biochemistry; University of California Santa Barbara; Santa Barbara CA 93106 USA
- College of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 2 10094 P.R. China
| | - Sachin Handa
- Dept. of Chemistry and Biochemistry; University of California Santa Barbara; Santa Barbara CA 93106 USA
| | | | - Bruce H. Lipshutz
- Dept. of Chemistry and Biochemistry; University of California Santa Barbara; Santa Barbara CA 93106 USA
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30
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Feng J, Handa S, Gallou F, Lipshutz BH. Safe and Selective Nitro Group Reductions Catalyzed by Sustainable and Recyclable Fe/ppm Pd Nanoparticles in Water at Room Temperature. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604026] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jie Feng
- Dept. of Chemistry and Biochemistry; University of California Santa Barbara; Santa Barbara CA 93106 USA
- College of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 2 10094 P.R. China
| | - Sachin Handa
- Dept. of Chemistry and Biochemistry; University of California Santa Barbara; Santa Barbara CA 93106 USA
| | | | - Bruce H. Lipshutz
- Dept. of Chemistry and Biochemistry; University of California Santa Barbara; Santa Barbara CA 93106 USA
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31
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Rathi AK, Gawande MB, Ranc V, Pechousek J, Petr M, Cepe K, Varma RS, Zboril R. Continuous flow hydrogenation of nitroarenes, azides and alkenes using maghemite–Pd nanocomposites. Catal Sci Technol 2016. [DOI: 10.1039/c5cy00956a] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Maghemite-supported ultra-fine Pd (1–3 nm) nanoparticles, prepared by a simple co-precipitation method, find application in the catalytic continuous flow hydrogenation of nitroarenes, azides, and alkenes.
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Affiliation(s)
- Anuj K. Rathi
- Regional Centre of Advanced Technologies and Materials
- Department of Physical Chemistry
- Faculty of Science
- Palacky University
- Olomouc
| | - Manoj B. Gawande
- Regional Centre of Advanced Technologies and Materials
- Department of Physical Chemistry
- Faculty of Science
- Palacky University
- Olomouc
| | - Vaclav Ranc
- Regional Centre of Advanced Technologies and Materials
- Department of Physical Chemistry
- Faculty of Science
- Palacky University
- Olomouc
| | - Jiri Pechousek
- Regional Centre of Advanced Technologies and Materials
- Department of Physical Chemistry
- Faculty of Science
- Palacky University
- Olomouc
| | - Martin Petr
- Regional Centre of Advanced Technologies and Materials
- Department of Physical Chemistry
- Faculty of Science
- Palacky University
- Olomouc
| | - Klara Cepe
- Regional Centre of Advanced Technologies and Materials
- Department of Physical Chemistry
- Faculty of Science
- Palacky University
- Olomouc
| | - Rajender S. Varma
- Sustainable Technology Division
- National Risk Management Research Laboratory
- US Environmental Protection Agency
- Cincinnati
- USA
| | - Radek Zboril
- Regional Centre of Advanced Technologies and Materials
- Department of Physical Chemistry
- Faculty of Science
- Palacky University
- Olomouc
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32
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Guo Y, Li J, Zhao F, Lan G, Li L, Liu Y, Si Y, Jiang Y, Yang B, Yang R. Palladium-modified functionalized cyclodextrin as an efficient and recyclable catalyst for reduction of nitroarenes. RSC Adv 2016. [DOI: 10.1039/c5ra23271f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
A kind of palladium-modified functionalized cyclodextrin catalytic system was synthesized and characterized. It showed high activity in the reduction of nitroarenes with the absence of sodium borohydride in water at room temperature.
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Affiliation(s)
- Yafei Guo
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
- Faculty of Life Science and Technology
| | - Jiuling Li
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Fen Zhao
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Guineng Lan
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Liang Li
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Yuqi Liu
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Yunsen Si
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Yubo Jiang
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Bo Yang
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming
- P. R. China
| | - Rui Yang
- Faculty of Science
- Kunming University of Science and Technology
- Kunming
- P. R. China
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33
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Abstract
Nanocatalysis in flow is catalysis by metallic nanoparticles (NPs; 1-50 nm) performed in microstructured reactors. These catalytic processes make use of the enhanced catalytic activity and selectivity of NPs and fulfill the requirements of green chemistry. Anchoring catalytically active metal NPs within a microfluidic reactor enhances the reagent/catalyst interaction, while avoiding diffusion limitations experienced in classical approaches. Different strategies for supporting NPs are reviewed herein, namely, packed-bed reactors, monolithic flow-through reactors, wall catalysts, and a selection of novel approaches (NPs embedded on nanotubes, nanowires, catalytic membranes, and magnetic NPs). Through a number of catalytic reactions, such as hydrogenations, oxidations, and cross-coupling reactions, the advantages and possible drawbacks of each approach are illustrated.
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Affiliation(s)
- Roberto Ricciardi
- Lab of Molecular Nanofabrication, Mesa+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede, 7500 AE (Netherlands)
| | - Jurriaan Huskens
- Lab of Molecular Nanofabrication, Mesa+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede, 7500 AE (Netherlands)
| | - Willem Verboom
- Lab of Molecular Nanofabrication, Mesa+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede, 7500 AE (Netherlands).
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34
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Gutmann B, Cantillo D, Kappe CO. Continuous-flow technology—a tool for the safe manufacturing of active pharmaceutical ingredients. Angew Chem Int Ed Engl 2015; 54:6688-728. [PMID: 25989203 DOI: 10.1002/anie.201409318] [Citation(s) in RCA: 870] [Impact Index Per Article: 96.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Indexed: 12/12/2022]
Abstract
In the past few years, continuous-flow reactors with channel dimensions in the micro- or millimeter region have found widespread application in organic synthesis. The characteristic properties of these reactors are their exceptionally fast heat and mass transfer. In microstructured devices of this type, virtually instantaneous mixing can be achieved for all but the fastest reactions. Similarly, the accumulation of heat, formation of hot spots, and dangers of thermal runaways can be prevented. As a result of the small reactor volumes, the overall safety of the process is significantly improved, even when harsh reaction conditions are used. Thus, microreactor technology offers a unique way to perform ultrafast, exothermic reactions, and allows the execution of reactions which proceed via highly unstable or even explosive intermediates. This Review discusses recent literature examples of continuous-flow organic synthesis where hazardous reactions or extreme process windows have been employed, with a focus on applications of relevance to the preparation of pharmaceuticals.
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Affiliation(s)
- Bernhard Gutmann
- Institute of Chemistry, University Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz (Austria) http://www.maos.net
| | - David Cantillo
- Institute of Chemistry, University Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz (Austria) http://www.maos.net
| | - C Oliver Kappe
- Institute of Chemistry, University Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz (Austria) http://www.maos.net.
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35
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Gutmann B, Cantillo D, Kappe CO. Kontinuierliche Durchflussverfahren: ein Werkzeug für die sichere Synthese von pharmazeutischen Wirkstoffen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201409318] [Citation(s) in RCA: 187] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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36
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Pieber B, Glasnov T, Kappe CO. Continuous Flow Reduction of Artemisinic Acid Utilizing Multi-Injection Strategies-Closing the Gap Towards a Fully Continuous Synthesis of Antimalarial Drugs. Chemistry 2015; 21:4368-76. [DOI: 10.1002/chem.201406439] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Indexed: 11/10/2022]
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37
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Yepez A, Lam FLY, Romero AA, Kappe CO, Luque R. Continuous Flow Preparation of Iron Oxide Nanoparticles Supported on Porous Silicates. ChemCatChem 2014. [DOI: 10.1002/cctc.201402802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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