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Mondal S, Chakraborty S, Khanra S, Chakraborty S, Pal S, Brandão P, Paul ND. A Phosphine-Free Air-Stable Mn(II)-Catalyst for Sustainable Synthesis of Quinazolin-4(3 H)-ones, Quinolines, and Quinoxalines in Water. J Org Chem 2024; 89:5250-5265. [PMID: 38554095 DOI: 10.1021/acs.joc.3c02579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2024]
Abstract
The synthesis, characterization, and catalytic application of a new phosphine-free, well-defined, water-soluble, and air-stable Mn(II)-catalyst [Mn(L)(H2O)2Cl](Cl) ([1]Cl) featuring a 1,10-phenanthroline based tridentate pincer ligand, 2-(1H-pyrazol-1-yl)-1,10-phenanthroline (L), in dehydrogenative functionalization of alcohols to various N-heterocycles such as quinazolin-4(3H)-ones, quinolines, and quinoxalines are reported here. A wide array of multisubstituted quinazolin-4(3H)-ones were prepared in water under air following two pathways via the dehydrogenative coupling of alcohols with 2-aminobenzamides and 2-aminobenzonitriles, respectively. 2-Aminobenzyl alcohol and ketones bearing active methylene group were used as coupling partners for synthesizing quinoline derivatives, and various quinoxaline derivatives were prepared by coupling vicinal diols and 1,2-diamines. In all cases, the reaction proceeded smoothly using our Mn(II)-catalyst [1]Cl in water under air, affording the desired N-heterocycles in satisfactory yields starting from cheap and readily accessible precursors. Gram-scale synthesis of the compounds indicates the industrial relevance of our synthetic strategy. Control experiments were performed to understand and unveil the plausible reaction mechanism.
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Affiliation(s)
- Sucheta Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
| | - Subhajit Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
| | - Subhankar Khanra
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
| | - Santana Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
| | - Shrestha Pal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
| | - Paula Brandão
- Departamento de Química/CICECO, Instituto de Materiais de Aveiro, Universidade de Aveiro, Aveiro 3810-193, Portugal
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
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2
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P H, M V, Dey R. Multicomponent synthesis via acceptorless alcohol dehydrogenation: an easy access to tri-substituted pyridines. RSC Adv 2024; 14:10761-10767. [PMID: 38572342 PMCID: PMC10988360 DOI: 10.1039/d4ra00439f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 03/06/2024] [Indexed: 04/05/2024] Open
Abstract
Herein, we report palladium supported on a hydroxyapatite catalyst for synthesizing tri-substituted pyridines using ammonium acetate as the nitrogen source via acceptorless alcohol dehydrogenation strategy. The strategy offers a broad substrate scope using inexpensive and readily available alcohols as the starting material. The catalyst was prepared using a simple method and analyzed by several techniques, including FE-SEM, EDS, HR-TEM, BET, XRD, FT-IR, UV-visible spectroscopy, and XPS, demonstrating the anchoring of Pd nanoparticles on hydroxyapatite in the zero oxidation state. Moreover, several controlled experiments were carried out to understand the reaction pathway and a suitable mechanism has been proposed.
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Affiliation(s)
- Hima P
- Department of Chemistry, National Institute of Technology Calicut Kozhikode 673601 India
| | - Vageesh M
- Department of Chemistry, National Institute of Technology Calicut Kozhikode 673601 India
| | - Raju Dey
- Department of Chemistry, National Institute of Technology Calicut Kozhikode 673601 India
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3
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Pennamuthiriyan A, Rengan R. Nickel Pincer Complexes Catalyzed Sustainable Synthesis of 3,4-Dihydro-2 H-1,2,4-benzothiadiazine-1,1-dioxides via Acceptorless Dehydrogenative Coupling of Primary Alcohols. J Org Chem 2024; 89:2494-2504. [PMID: 38326039 DOI: 10.1021/acs.joc.3c02508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
We report the atom-economic and sustainable synthesis of biologically important 3,4-dihydro-2H-1,2,4-benzothiadiazine-1,1-dioxide (DHBD) derivatives from readily available aromatic primary alcohols and 2-aminobenzenesulfonamide catalyzed by nickel(II)-N∧N∧S pincer-type complexes. The synthesized nickel complexes have been well-studied by elemental and spectroscopic (FT-IR, NMR, and HRMS) analyses. The solid-state molecular structure of complex 2 has been authenticated by a single-crystal X-ray diffraction study. Furthermore, a series of 3,4-dihydro-2H-1,2,4-benzothiadiazine-1,1-dioxide derivatives have been synthesized (24 examples) utilizing a 3 mol % Ni(II) catalyst through acceptorless dehydrogenative coupling of benzyl alcohols with benzenesulfonamide. Gratifyingly, the catalytic protocol is highly selective with the yield up to 93% and produces eco-friendly water/hydrogen gas as byproducts. The control experiments and plausible mechanistic investigations indicate that the coupling of the in situ generated aldehyde with benzenesulfonamide leads to the desired product. In addition, a large-scale synthesis of one of the thiadiazine derivatives unveils the synthetic usefulness of the current methodology.
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Affiliation(s)
- Anandaraj Pennamuthiriyan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
| | - Ramesh Rengan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
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4
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Yusniyanti F, Hara T, Makishima K, Kurniawan E, Fujimura T, Sasai R, Moriyoshi C, Kawaguchi S, Permana Y, Ichikuni N. Creation of a Highly Active Small Cu-Based Catalyst Derived from Copper Aluminium Layered Double Hydroxide Supported on α-Al 2 O 3 for Acceptorless Alcohol Dehydrogenation. Chem Asian J 2023; 18:e202300727. [PMID: 37752095 DOI: 10.1002/asia.202300727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 09/18/2023] [Accepted: 09/25/2023] [Indexed: 09/28/2023]
Abstract
A highly dispersed carbonate-intercalated Cu2+ -Al3+ layered double hydroxide (CuAl LDH) was created on an unreactive α-Al2 O3 surface (CuAl LDH@α-Al2 O3 ) via a simple coprecipitation method of Cu2+ and Al3+ under alkaline conditions in the presence of α-Al2 O3 . A highly reducible CuO nanoparticles was generated, accompanied by the formation of CuAl2 O4 on the surface of α-Al2 O3 (CuAlO@α-Al2 O3 ) after calcination at 1073 K in air, as confirmed by powder X-ray diffraction (XRD) and Cu K-edge X-ray absorption near edge structure (XANES). The structural changes during the progressive heating process were monitored by using in-situ temperature-programmed synchrotron XRD (tp-SXRD). The layered structure of CuAl LDH@α-Al2 O3 completely disappeared at 473 K, and CuO or CuAl2 O4 phases began to appear at 823 K or 1023 K, respectively. Our synthesised CuAlO@α-Al2 O3 catalyst was highly active for the acceptorless dehydrogenation of benzylic, aliphatic, or cyclic aliphatic alcohols; the TON based on the amount of Cu increased to 163 from 3.3 of unsupported CuAlO catalyst in 1-phenylethanol dehydrogenation. The results suggested that Cu0 was obtained from the reduction of CuO in the catalyst matrix during the reaction without separate reduction procedure and acted as a catalytically active species.
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Affiliation(s)
- Febi Yusniyanti
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi, Inage, Chiba, 263-8522, Japan
| | - Takayoshi Hara
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi, Inage, Chiba, 263-8522, Japan
| | - Kohei Makishima
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
| | - Enggah Kurniawan
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi, Inage, Chiba, 263-8522, Japan
| | - Takuya Fujimura
- Graduate School of Natural Science and Technology, Shimane University, 1060 Nishi-Kawatsu, Matsue, Shimane, 690-8504, Japan
| | - Ryo Sasai
- Graduate School of Natural Science and Technology, Shimane University, 1060 Nishi-Kawatsu, Matsue, Shimane, 690-8504, Japan
| | - Chikako Moriyoshi
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Yessi Permana
- Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung, 40132, Indonesia
| | - Nobuyuki Ichikuni
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi, Inage, Chiba, 263-8522, Japan
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5
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Ma L, Feng W, Zhao S, Wang C, Xi Y, Lin X. On the mechanism of acceptorless dehydrogenation of N-heterocycles catalyzed by tBuOK: a computational study. RSC Adv 2023; 13:20748-20755. [PMID: 37441048 PMCID: PMC10334261 DOI: 10.1039/d3ra04305c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
The catalytic acceptorless dehydrogenation (ADH) of saturated N-heterocycles has recently gained considerable attention as a promising strategy for hydrogen release from liquid organic hydrogen carriers (LOHCs). Recently, a simple tBuOK base-promoted ADH of N-heterocycles was developed by Yu et al. (Adv. Synth. Catal. 2019, 361, 3958). However, it is still open as to how the tBuOK plays a catalytic role in the ADH process. Herein, our density functional study reveals that the tBuOK catalyzes the ADH of 1,2,3,4-tetrahydroquinoline (THQ) through a quasi-metal-ligand bifunctional catalytic channel or a base-catalyzed pathway with close energy barriers. The hydride transfer in the first dehydrogenation process is determined to be the rate determining step, and the second dehydrogenation can proceed directly from 34DHQ regulated by the tBuOK. In addition, the computational results show that the cooperation of a suitable alkali metal ion with the tBuO- group is so critical that the tBuOLi and the isolated tBuO- are both inferior to tBuOK as a dehydrogenation catalyst.
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Affiliation(s)
- Lishuang Ma
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China) Qingdao 266580 P. R. China
| | - Wenxu Feng
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China) Qingdao 266580 P. R. China
| | - Shidong Zhao
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China) Qingdao 266580 P. R. China
| | - Chuangye Wang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China) Qingdao 266580 P. R. China
| | - Yanyan Xi
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China) Qingdao 266580 P. R. China
| | - Xufeng Lin
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China) Qingdao 266580 P. R. China
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China) Qingdao 266580 P. R. China
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Mehra P, Tavar D, Prakash S, Sharma RK, Srivastava AK, Paul A, Singh A. One-Step High-Temperature Electrodeposition of Fe-Based Films as Efficient Water Oxidation Catalysts. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6088-6101. [PMID: 37068156 DOI: 10.1021/acs.langmuir.3c00177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Electrolysis of water to produce hydrogen requires an efficient catalyst preferably made of cheap and abundant metal ions for the improved water oxidation reaction. An Fe-based film has been deposited in a single step by electrochemical deposition at temperatures higher than the room temperature. Until now, the electrodeposition of iron oxide has been carried out at 298 K or at lower temperatures under a controlled atmosphere to prohibit atmospheric oxidation of Fe2+ of the iron precursor. A metal inorganic complex, ferrocene, and non-aqueous electrolyte medium propylene carbonate have been used to achieve electrodeposition of iron oxide without the need of any inert or controlled atmosphere. At 298 K, the amorphous film was formed, whereas at 313 K and at higher temperatures, the hematite film was grown, as confirmed by X-ray diffraction. The transformation of iron of the ferrocene into a higher oxidation state under the experimental conditions used was further confirmed by X-ray photoelectron spectroscopy, ultraviolet-visible, and electron paramagnetic resonance spectroscopic methods. The films deposited at 313 K showed the best performance for water oxidation with remarkable long-term electrocatalytic stability and an impressive turnover frequency of 0.028 s-1 which was 4.5 times higher than that of films deposited at 298 K (0.006 s-1). The observed overpotential to achieve a current density of 10 mA cm-2 was found to be 100 mV less for the film deposited at 313 K compared to room-temperature-derived films under similar experimental conditions. Furthermore, electrochemical impedance data revealed that films obtained at 313 K have the least charge transfer resistance (114 Ω) among all, supporting the most efficient electron transport in the film. To the best of our knowledge, this is the first-ever report where the crystalline iron-based film has been shown to be electrodeposited without any post-deposition additional treatment for alkaline oxygen evolution reaction application.
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Affiliation(s)
- Palak Mehra
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal-by-pass Road, Bhauri, Bhopal, Madhya Pradesh 462066, India
| | - Deepika Tavar
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- CSIR─Advanced Material and Processes Research Institute (AMPRI), Bhopal, Madhya Pradesh 462026, India
| | - Satya Prakash
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- CSIR─Advanced Material and Processes Research Institute (AMPRI), Bhopal, Madhya Pradesh 462026, India
| | - Rajendra K Sharma
- Raja Ramanna Centre for Advance Technology (RRCAT), Indore, Madhya Pradesh 452013, India
| | - Avanish Kumar Srivastava
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- CSIR─Advanced Material and Processes Research Institute (AMPRI), Bhopal, Madhya Pradesh 462026, India
| | - Amit Paul
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal-by-pass Road, Bhauri, Bhopal, Madhya Pradesh 462066, India
| | - Archana Singh
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- CSIR─Advanced Material and Processes Research Institute (AMPRI), Bhopal, Madhya Pradesh 462026, India
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7
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P H, M V, Tomasini M, Poater A, Dey R. Transition metal-free synthesis of 2-aryl quinazolines via alcohol dehydrogenation. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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8
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Meng C, Liu S, Zhang X, Zhao D, Tong M, Chen G, Long Z. Solvent- and additive-free liquid-phase acceptorless dehydrogenation of benzyl alcohol to benzaldehyde catalyzed by carbon-encapsulating Cu nanoparticles: a combined experimental and theoretical study. REACTION KINETICS MECHANISMS AND CATALYSIS 2023. [DOI: 10.1007/s11144-023-02372-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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9
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Shi C, Zhang L, Shi Z, Wang Z, Ma J. Mechanistic investigation of cellulose regulating the morphology and photocatalytic activity of Al-doped ZnO. Int J Biol Macromol 2023; 228:435-444. [PMID: 36572077 DOI: 10.1016/j.ijbiomac.2022.12.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 12/05/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022]
Abstract
The morphology of metal oxide is a crucial factor for improving of catalysis properties. As a renewable and environmentally friendly biomass material, cellulose has been widely used to induce the morphology of semiconductors. The contributions of cellulose hydroxyl groups and spatial hindrance in tailoring Al doped ZnO (AZO) morphologies were investigated. The morphology of AZO could be gradually induced from flake-like to flower-like with the increase of cellulose hydroxyl content per unit volume. At the same time, the changes in spatial hindrance had no apparent effect on the morphology of AZO. So the cellulose hydroxyl groups that act to induce the in situ growth of AZO nanoparticles on cellulose substrates. The results further confirmed the strong interaction between cellulose hydroxyl groups and Zn2+. In addition, the photocatalytic activities of Al-doped ZnO/cellulose nanocomposites (AZOC) with different morphologies were evaluated by the degradation of bisphenol A (BPA). The high hydroxyl contents of cellulose substrates contributed to the growth of flower-like AZO with high light utilization and photocatalytic activity. This work proposed cleaner strategies to modify semiconductor morphologies for photocatalysis by regulating the content of cellulose hydroxyl contents.
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Affiliation(s)
- Chun Shi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China; University Key Laboratory of Biomass Chemical Refinery & Synthesis, Southwest Forestry University, Kunming 650224, China
| | - Lili Zhang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Zhengjun Shi
- University Key Laboratory of Biomass Chemical Refinery & Synthesis, Southwest Forestry University, Kunming 650224, China
| | - Zhiguo Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jinxia Ma
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China.
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Wang F, Zhu F, Ren E, Zhu G, Lu GP, Lin Y. Recent Advances in Carbon-Based Iron Catalysts for Organic Synthesis. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12193462. [PMID: 36234590 PMCID: PMC9565280 DOI: 10.3390/nano12193462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 05/13/2023]
Abstract
Carbon-based iron catalysts combining the advantages of iron and carbon material are efficient and sustainable catalysts for green organic synthesis. The present review summarizes the recent examples of carbon-based iron catalysts for organic reactions, including reduction, oxidation, tandem and other reactions. In addition, the introduction strategies of iron into carbon materials and the structure and activity relationship (SAR) between these catalysts and organic reactions are also highlighted. Moreover, the challenges and opportunities of organic synthesis over carbon-based iron catalysts have also been addressed. This review will stimulate more systematic and in-depth investigations on carbon-based iron catalysts for exploring sustainable organic chemistry.
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Affiliation(s)
- Fei Wang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Fuying Zhu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Enxiang Ren
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Guofu Zhu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Guo-Ping Lu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei Street, Nanjing 210094, China
- Correspondence: (G.-P.L.); (Y.L.)
| | - Yamei Lin
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
- Correspondence: (G.-P.L.); (Y.L.)
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Sustainable production of hydrogen with high purity from methanol and water at low temperatures. Nat Commun 2022; 13:5527. [PMID: 36130943 PMCID: PMC9492729 DOI: 10.1038/s41467-022-33186-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 09/06/2022] [Indexed: 11/08/2022] Open
Abstract
Carbon neutrality initiative has stimulated the development of the sustainable methodologies for hydrogen generation and safe storage. Aqueous-phase reforming methanol and H2O (APRM) has attracted the particular interests for their high gravimetric density and easy availability. Thus, to efficiently release hydrogen and significantly suppress CO generation at low temperatures without any additives is the sustainable pursuit of APRM. Herein, we demonstrate that the dual-active sites of Pt single-atoms and frustrated Lewis pairs (FLPs) on porous nanorods of CeO2 enable the efficient additive-free H2 generation with a low CO (0.027%) through APRM at 120 °C. Mechanism investigations illustrate that the Pt single-atoms and Lewis acidic sites cooperatively promote the activation of methanol. With the help of a spontaneous water dissociation on FLPs, Pt single-atoms exhibit a significantly improved reforming of *CO to promote H2 production and suppress CO generation. This finding provides a promising path towards the flexible hydrogen utilizations.
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12
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Ibrahim MYS, Bennett JA, Abolhasani M. Continuous Room-Temperature Hydrogen Release from Liquid Organic Carriers in a Photocatalytic Packed-Bed Flow Reactor. CHEMSUSCHEM 2022; 15:e202200733. [PMID: 35446510 PMCID: PMC9400973 DOI: 10.1002/cssc.202200733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Despite the potential of hydrogen (H2 ) storage in liquid organic carriers to achieve carbon neutrality, the energy required for H2 release and the cost of catalyst recycling have hindered its large-scale adoption. In response, a photo flow reactor packed with rhodium (Rh)/titania (TiO2 ) photocatalyst was reported for the continuous and selective acceptorless dehydrogenation of 1,2,3,4-tetrahydroquinoline to H2 gas and quinoline under visible light irradiation at room temperature. The tradeoff between the reactor pressure drop and its photocatalytic surface area was resolved by selective in-situ photodeposition of Rh in the photo flow reactor post-packing on the outer surface of the TiO2 microparticles available to photon flux, thereby reducing the optimal Rh loading by 10 times compared to a batch reactor, while facilitating catalyst reuse and regeneration. An example of using quinoline as a hydrogen acceptor to lower the energy of the hydrogen production step was demonstrated via the water-gas shift reaction.
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Affiliation(s)
- Malek Y. S. Ibrahim
- Department of Chemical and Biomolecular EngineeringNorth Carolina State University911 Partners WayRaleighNC 27695USA
| | - Jeffrey A. Bennett
- Department of Chemical and Biomolecular EngineeringNorth Carolina State University911 Partners WayRaleighNC 27695USA
| | - Milad Abolhasani
- Department of Chemical and Biomolecular EngineeringNorth Carolina State University911 Partners WayRaleighNC 27695USA
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13
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Bordoloi K, Kalita GD, Das P. Acceptorless dehydrogenation of alcohols to carboxylic acids by palladium nanoparticles supported on NiO: delving into metal-support cooperation in catalysis. Dalton Trans 2022; 51:9922-9934. [PMID: 35723167 DOI: 10.1039/d2dt01311h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In this work, we have developed a simple NiO-supported Pd nanocatalyst (Pd@NiO) for oxidant-free dehydrogenative oxidation of primary alcohols to carboxylic acids along with hydrogen gas as a byproduct. The catalyst has been characterized by techniques like XRD, HRTEM, SEM-EDX, XPS and ICP-AES. The nanostructured Pd@NiO material showed excellent dehydrogenative oxidation activity and outperformed the activity of free NiO or Pd nanoparticles supported on silica/carbon as a catalyst, which could be attributed to synergistic effect of Pd and NiO. A diverse range of aromatic and aliphatic primary alcohols could be efficiently converted to their corresponding carboxylates in high yields with a catalyst loading as low as 0.08 mol%. Notably, highly challenging biomass derived heterocyclic alcohols such as furfuryl alcohol and piperonyl alcohol can also be efficiently converted to their corresponding acids. Moreover, our catalyst can convert benzyl alcohol to benzoic acid on a gram scale with 89% yield. Interestingly, the H2 gas liberated in the reaction can also be used as a substrate for the hydrogenation of 3a to 4a in 65% yield. The nanostructured catalyst is highly reusable and no significant decrease in activity was observed after six reaction cycles. A kinetic study revealed that the reaction followed first-order kinetics with a rate constant of k = 1.47 × 10-4 s-1, under optimized conditions. The extent of reactivity of different functionalities towards dehydrogenation was also investigated using a Hammett plot showing good linearity.
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Affiliation(s)
- Krisangi Bordoloi
- Department of Chemistry, Dibrugarh University, Dibrugarh 786004, Assam, India.
| | | | - Pankaj Das
- Department of Chemistry, Dibrugarh University, Dibrugarh 786004, Assam, India.
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14
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Maji B, Bhandari A, Bhattacharya D, Choudhury J. Reusable Single Homogeneous Ir(III)–NHC Catalysts for Bidirectional Hydrogenation–Dehydrogenation of N-Heteroarenes in Water. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Babulal Maji
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India
| | - Anirban Bhandari
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India
| | - Disha Bhattacharya
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India
| | - Joyanta Choudhury
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India
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15
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Yadav D, Singh RK, Misra S, Singh AK. Ancillary Ligand Effects and Microwave‐Assisted Enhancement on the Catalytic Performance of Cationic Ruthenium (II)‐CNC Pincer Complexes for Acceptorless Alcohol Dehydrogenation. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dibya Yadav
- Department of Chemistry Indian Institute of Technology Indore Indore India
| | - Rahul Kumar Singh
- Department of Chemistry Indian Institute of Technology Indore Indore India
| | - Shilpi Misra
- Department of Chemistry Indian Institute of Technology Indore Indore India
| | - Amrendra K. Singh
- Department of Chemistry Indian Institute of Technology Indore Indore India
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16
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Sardar B, Jamatia R, Samanta A, Srimani D. Ru Doped Hydrotalcite Catalyzed Borrowing Hydrogen-Mediated N-Alkylation of Benzamides, Sulfonamides, and Dehydrogenative Synthesis of Quinazolinones. J Org Chem 2022; 87:5556-5567. [PMID: 35442678 DOI: 10.1021/acs.joc.1c02913] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient Ru doped hydrotalcite catalyzed N-alkylation of benzamides and sulfonamides with alcohols via borrowing hydrogen catalysis is illustrated. Various primary alcohols, including benzyl, heteroaryl, and aliphatic alcohols, were alkylated in good to excellent yields. To shed light on the mechanistic details, several control studies and deuterium labeling experiments were performed. Mechanistic studies underpin that the reaction is going via a borrowing hydrogen pathway rather than an SN1 type mechanism. The reaction can be easily scaled up without any detrimental effect on the yield. The catalyst is also capable of synthesizing quinazolinone directly from 2-aminobenzamide and alcohols. Successful recyclability and high reactivity highlight the practical applicability of the catalyst.
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Affiliation(s)
- Bitan Sardar
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, Guwahati Pin 781039, India
| | - Ramen Jamatia
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, Guwahati Pin 781039, India.,Department of Chemistry, Rajiv Gandhi University, Rono Hills, Doimukh, Arunachal Pradesh 791112, India
| | - Arup Samanta
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, Guwahati Pin 781039, India
| | - Dipankar Srimani
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, Guwahati Pin 781039, India
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17
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Ritz MD, Jones WD. Iron Catalyzed Dehydrogenation of Alcohols Using Benzoquinones as Electrochemically Regenerable Mediators. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mikhaila D Ritz
- University of Rochester - River Campus: University of Rochester Department of Chemistry 14627 Rochester UNITED STATES
| | - William D Jones
- University of Rochester Department of Chemistry Box 270216 14627-0216 Rochester - NY UNITED STATES
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18
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Liu C, Li T, Dai X, Zhao J, He D, Li G, Wang B, Cui X. Catalytic Activity Enhancement on Alcohol Dehydrogenation via Directing Reaction Pathways from Single- to Double-Atom Catalysis. J Am Chem Soc 2022; 144:4913-4924. [PMID: 35261231 DOI: 10.1021/jacs.1c12705] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To further improve the intrinsic reactivity of single-atom catalysts (SACs), the controllable modification of a single site by coordinating with a second neighboring metal atom, developing double-atom catalysts (DACs), affords new opportunities. Here we report a catalyst that features two bonded Fe-Co double atoms, which is well represented by an FeCoN6(OH) ensemble with 100% metal dispersion, that work together to switch the reaction mechanism in alcohol dehydrogenation under oxidant-free conditions. Compared with Fe-SAC and Co-SAC, FeCo-DAC displays higher activity performance, yielding the desired products in up to 98% yields. Moreover, a broad diversity of benzyl alcohols and aliphatic alcohols convert into the corresponding dehydrogenated products with excellent yields and high selectivity. The kinetic reaction results show that lower activation energy is obtained by FeCo-DAC than that by Fe-SAC and Co-SAC. Moreover, computational studies demonstrate that the reaction path by DACs is different from that by SACs, providing a rationale for the observed enhancements.
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Affiliation(s)
- Ce Liu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou 730000, China
| | - Teng Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou 730000, China
| | - Xingchao Dai
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou 730000, China
| | - Jian Zhao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou 730000, China
| | - Dongcheng He
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou 730000, China.,University of Chinese Academy of Sciences, No. 19A, Yuquan Road, Beijing 100049, China
| | - Guomin Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou 730000, China.,University of Chinese Academy of Sciences, No. 19A, Yuquan Road, Beijing 100049, China
| | - Bin Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou 730000, China
| | - Xinjiang Cui
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou 730000, China
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19
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Devi Priya D, Athira CC, Mohana Roopan S. Surface area enhanced flower shaped hair protein supported palladium nanoparticles as sono‐photocatalyst towards Carbon–Carbon bond forming reaction. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Duraipandi Devi Priya
- Chemistry of Heterocycles & Natural Product Research Laboratory, Department of Chemistry, School of Advanced Sciences Vellore Institute of Technology Vellore Tamil Nadu India
| | - C. C. Athira
- Chemistry of Heterocycles & Natural Product Research Laboratory, Department of Chemistry, School of Advanced Sciences Vellore Institute of Technology Vellore Tamil Nadu India
| | - Selvaraj Mohana Roopan
- Chemistry of Heterocycles & Natural Product Research Laboratory, Department of Chemistry, School of Advanced Sciences Vellore Institute of Technology Vellore Tamil Nadu India
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20
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Hu H, Nie Y, Tao Y, Huang W, Qi L, Nie R. Metal-free carbocatalyst for room temperature acceptorless dehydrogenation of N-heterocycles. SCIENCE ADVANCES 2022; 8:eabl9478. [PMID: 35089786 PMCID: PMC8797793 DOI: 10.1126/sciadv.abl9478] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
Catalytic dehydrogenation enables reversible hydrogen storage in liquid organics as a critical technology to achieve carbon neutrality. However, oxidant or base-free catalytic dehydrogenation at mild temperatures remains a challenge. Here, we demonstrate a metal-free carbocatalyst, nitrogen-assembly carbons (NCs), for acceptorless dehydrogenation of N-heterocycles even at ambient temperature, showing greater activity than transition metal-based catalysts. Mechanistic studies indicate that the observed catalytic activity of NCs is because of the unique closely placed graphitic nitrogens (CGNs), formed by the assembly of precursors during the carbonization process. The CGN site catalyzes the activation of C─H bonds in N-heterocycles to form labile C─H bonds on catalyst surface. The subsequent facile recombination of this surface hydrogen to desorb H2 allows the NCs to work without any H-acceptor. With reverse transfer hydrogenation of various N-heterocycles demonstrated in this work, these NC catalysts, without precious metals, exhibit great potential for completing the cycle of hydrogen storage.
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Affiliation(s)
- Haitao Hu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
- School of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Yunqing Nie
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
- School of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Yuewen Tao
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
- School of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Wenyu Huang
- U.S. DOE Ames Laboratory, Ames, IA 50011, USA
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA
| | - Long Qi
- U.S. DOE Ames Laboratory, Ames, IA 50011, USA
| | - Renfeng Nie
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
- School of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
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21
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Qin Y, Bai X. N-doped graphitized carbon supported Co@Ru core–shell bimetallic catalyst for hydrogen storage of N-ethylcarbazole. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02231h] [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
We investigate the hydrogenation of one promising liquid organic hydrogen carrier N-ethylcarbazole on the N-doped graphitized carbon (NGC) supported Co@Ru core–shell bimetallic catalyst.
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Affiliation(s)
- Yibo Qin
- School of Chemistry and Material Science, Heilongjiang University, Harbin 150080, China
| | - Xuefeng Bai
- School of Chemistry and Material Science, Heilongjiang University, Harbin 150080, China
- Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin 150040, China
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22
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Asaula VM, Buryanov VV, Solod BY, Tryus DM, Pariiska OO, Kotenko IE, Volovenko YM, Volochnyuk DM, Ryabukhin SV, Kolotilov SV. Catalytic Hydrogenation of Substituted Quinolines on Co–Graphene Composites. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Vitalii M. Asaula
- L.V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of Ukraine 31 Nauki ave. Kyiv 03028 Ukraine
| | - Volodymyr V. Buryanov
- Enamine Ltd 78 Chervonotkatska str. Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv 60 Volodymyrska str. Kyiv 01033 Ukraine
| | - Bohdan Y. Solod
- Enamine Ltd 78 Chervonotkatska str. Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv 60 Volodymyrska str. Kyiv 01033 Ukraine
| | - Daryna M. Tryus
- Enamine Ltd 78 Chervonotkatska str. Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv 60 Volodymyrska str. Kyiv 01033 Ukraine
| | - Olena O. Pariiska
- L.V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of Ukraine 31 Nauki ave. Kyiv 03028 Ukraine
| | - Igor E. Kotenko
- L.V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of Ukraine 31 Nauki ave. Kyiv 03028 Ukraine
- National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” 37 Peremogy ave. Kyiv 03056 Ukraine
| | - Yulian M. Volovenko
- Taras Shevchenko National University of Kyiv 60 Volodymyrska str. Kyiv 01033 Ukraine
| | - Dmitriy M. Volochnyuk
- Enamine Ltd 78 Chervonotkatska str. Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv 60 Volodymyrska str. Kyiv 01033 Ukraine
- Institute of Organic Chemistry National Academy of Sciences of Ukraine 5 Murmanska str. 02094 Kyiv Ukraine
| | - Sergey V. Ryabukhin
- Enamine Ltd 78 Chervonotkatska str. Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv 60 Volodymyrska str. Kyiv 01033 Ukraine
- Institute of Organic Chemistry National Academy of Sciences of Ukraine 5 Murmanska str. 02094 Kyiv Ukraine
| | - Sergey V. Kolotilov
- L.V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of Ukraine 31 Nauki ave. Kyiv 03028 Ukraine
- Enamine Ltd 78 Chervonotkatska str. Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv 60 Volodymyrska str. Kyiv 01033 Ukraine
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23
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Bera A, Bera S, Banerjee D. Recent advances in the synthesis of N-heteroarenes via catalytic dehydrogenation of N-heterocycles. Chem Commun (Camb) 2021; 57:13042-13058. [PMID: 34781335 DOI: 10.1039/d1cc04919d] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Bio-active molecules having N-heteroarene core are widely used for numerous medicinal applications and as lifesaving drugs. In this direction, dehydrogenation of partially saturated aromatic N-heterocycles shows utmost importance for the synthesis of heterocycles. This feature article highlights the recent advances, from 2009 to April 2021, on the dehydrogenation of N-heteroaromatics. Notable features considering the development of newer catalysis for dehydrogenations are: (i) approaches based on precious metal catalysis, (ii) newer strategies and catalyst development technology using non-precious metal-catalysts for N-heterocycles having one or more heteroatoms, (iii) Synthesis of five or six-membered N-heterocycles using photocatalysis, electrocatalytic, and organo-catalytic approaches using different homogeneous and heterogeneous conditions' (iv) metal free (base and acid-promoted) dehydrogenation along with I2, N-hydroxyphthalimide (NHPI) and bio catalyzed miscellaneous examples have also been discussed, (v) mechanistic studies for various dehydrogenation reactions and (vi) synthetic applications of various bio-active molecules including post-drug derivatization are discussed.
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Affiliation(s)
- Atanu Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Sourajit Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
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24
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Najafishirtari S, Friedel Ortega K, Douthwaite M, Pattisson S, Hutchings GJ, Bondue CJ, Tschulik K, Waffel D, Peng B, Deitermann M, Busser GW, Muhler M, Behrens M. A Perspective on Heterogeneous Catalysts for the Selective Oxidation of Alcohols. Chemistry 2021; 27:16809-16833. [PMID: 34596294 PMCID: PMC9292687 DOI: 10.1002/chem.202102868] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Indexed: 01/15/2023]
Abstract
Selective oxidation of higher alcohols using heterogeneous catalysts is an important reaction in the synthesis of fine chemicals with added value. Though the process for primary alcohol oxidation is industrially established, there is still a lack of fundamental understanding considering the complexity of the catalysts and their dynamics under reaction conditions, especially when higher alcohols and liquid‐phase reaction media are involved. Additionally, new materials should be developed offering higher activity, selectivity, and stability. This can be achieved by unraveling the structure–performance correlations of these catalysts under reaction conditions. In this regard, researchers are encouraged to develop more advanced characterization techniques to address the complex interplay between the solid surface, the dissolved reactants, and the solvent. In this mini‐review, we report some of the most important approaches taken in the field and give a perspective on how to tackle the complex challenges for different approaches in alcohol oxidation while providing insight into the remaining challenges.
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Affiliation(s)
- Sharif Najafishirtari
- Faculty of Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Carl-Benz-Straße 199, 47057, Duisburg, Germany
| | - Klaus Friedel Ortega
- Institute of Inorganic Chemistry, Kiel University, Max-Eyth-Straße 2, 24118, Kiel, Germany
| | - Mark Douthwaite
- Cardiff Catalysis Institute, Cardiff University, CF10 3AT, Cardiff, United Kingdom
| | - Samuel Pattisson
- Cardiff Catalysis Institute, Cardiff University, CF10 3AT, Cardiff, United Kingdom
| | - Graham J Hutchings
- Cardiff Catalysis Institute, Cardiff University, CF10 3AT, Cardiff, United Kingdom
| | - Christoph J Bondue
- Faculty of Chemistry and Biochemistry, Lab. of Electrochemistry & Nanoscale Materials, Ruhr-University Bochum, Universitätsstraße. 150, ZEMOS 1.41, 44780, Bochum, Germany
| | - Kristina Tschulik
- Faculty of Chemistry and Biochemistry, Lab. of Electrochemistry & Nanoscale Materials, Ruhr-University Bochum, Universitätsstraße. 150, ZEMOS 1.41, 44780, Bochum, Germany
| | - Daniel Waffel
- Faculty of Chemistry and Biochemistry, Lab. of Industrial Chemistry, Ruhr-University Bochum, Universitätsstraße 150, NBCF 04 / 690, 44780, Bochum, Germany
| | - Baoxiang Peng
- Faculty of Chemistry and Biochemistry, Lab. of Industrial Chemistry, Ruhr-University Bochum, Universitätsstraße 150, NBCF 04 / 690, 44780, Bochum, Germany
| | - Michel Deitermann
- Faculty of Chemistry and Biochemistry, Lab. of Industrial Chemistry, Ruhr-University Bochum, Universitätsstraße 150, NBCF 04 / 690, 44780, Bochum, Germany
| | - G Wilma Busser
- Faculty of Chemistry and Biochemistry, Lab. of Industrial Chemistry, Ruhr-University Bochum, Universitätsstraße 150, NBCF 04 / 690, 44780, Bochum, Germany
| | - Martin Muhler
- Faculty of Chemistry and Biochemistry, Lab. of Industrial Chemistry, Ruhr-University Bochum, Universitätsstraße 150, NBCF 04 / 690, 44780, Bochum, Germany
| | - Malte Behrens
- Faculty of Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Carl-Benz-Straße 199, 47057, Duisburg, Germany.,Institute of Inorganic Chemistry, Kiel University, Max-Eyth-Straße 2, 24118, Kiel, Germany
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25
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Nazarahari M, Azizian J. FeCl2-PPh3 as an efficient catalytic system for the acceptorless dehydrogenation of amines into imines. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01749-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Li B, Fang J, Xu D, Zhao H, Zhu H, Zhang F, Dong Z. Atomically Dispersed Co Clusters Anchored on N-doped Carbon Nanotubes for Efficient Dehydrogenation of Alcohols and Subsequent Conversion to Carboxylic Acids. CHEMSUSCHEM 2021; 14:4536-4545. [PMID: 34370902 DOI: 10.1002/cssc.202101330] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/08/2021] [Indexed: 06/13/2023]
Abstract
The catalytic dehydrogenation of readily available alcohols to high value-added carbonyl compounds is a research hotspot with scientific significance. Most of the current research about this reaction is performed with noble metal-based homogeneous catalysts of high price and poor reusability. Herein, highly dispersed Co-cluster-decorated N-doped carbon nanotubes (Co/N-CNTs) were fabricated via a facile strategy and used for the dehydrogenation of alcohols with high efficiency. Various characterization techniques confirmed the presence of metallic Co clusters with almost atomic dispersion, and the N-doped carbon supports also enhanced the catalytic activity of Co clusters in the dehydrogenation reaction. Aldehydes as dehydrogenation products were further transformed in situ to carboxylic acids through a Cannizzaro-type pathway under alkaline conditions. The reaction pathway of the dehydrogenation of alcohols was clearly confirmed by theoretical calculations. This work should provide an effective and simple approach for the accurate design and synthesis of small Co-clusters catalysts for the efficient dehydrogenation-based transformation of alcohols to carboxylic acids under mild reaction conditions.
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Affiliation(s)
- Boyang Li
- State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Jian Fang
- State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Dan Xu
- State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Hong Zhao
- State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Hanghang Zhu
- State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Fengwei Zhang
- Institute of Crystalline Materials, Shanxi University, Taiyuan, 030006, P. R. China
| | - Zhengping Dong
- State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
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27
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Manna S, Kong WJ, Bäckvall JE. Iron(II)-Catalyzed Aerobic Biomimetic Oxidation of N-Heterocycles. Chemistry 2021; 27:13725-13729. [PMID: 34324754 PMCID: PMC8518507 DOI: 10.1002/chem.202102483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Indexed: 12/29/2022]
Abstract
Herein, an iron(II)-catalyzed biomimetic oxidation of N-heterocycles under aerobic conditions is described. The dehydrogenation process, involving several electron-transfer steps, is inspired by oxidations occurring in the respiratory chain. An environmentally friendly and inexpensive iron catalyst together with a hydroquinone/cobalt Schiff base hybrid catalyst as electron-transfer mediator were used for the substrate-selective dehydrogenation reaction of various N-heterocycles. The method shows a broad substrate scope and delivers important heterocycles in good-to-excellent yields.
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Affiliation(s)
- Srimanta Manna
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Wei-Jun Kong
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Jan-E Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
- Department of Natural Sciences, Mid Sweden University, 85170, Sundsvall, Sweden
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28
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Subaramanian M, Ramar PM, Sivakumar G, Kadam RG, Petr M, Zboril R, Gawande MB, Balaraman E. Convenient and Reusable Manganese‐Based Nanocatalyst for Amination of Alcohols. ChemCatChem 2021. [DOI: 10.1002/cctc.202100635] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Murugan Subaramanian
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Tirupati 517507 Tirupati India
| | - Palmurukan M. Ramar
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Tirupati 517507 Tirupati India
| | - Ganesan Sivakumar
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Tirupati 517507 Tirupati India
| | - Ravishankar G. Kadam
- Regional Centre of Advanced Technologies and Materials Palacky University 78371 Olomouc Czech Republic
| | - Martin Petr
- Regional Centre of Advanced Technologies and Materials Palacky University 78371 Olomouc Czech Republic
| | - Radek Zboril
- Regional Centre of Advanced Technologies and Materials Palacky University 78371 Olomouc Czech Republic
| | - Manoj B. Gawande
- Regional Centre of Advanced Technologies and Materials Palacky University 78371 Olomouc Czech Republic
| | - Ekambaram Balaraman
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Tirupati 517507 Tirupati India
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29
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Subaramanian M, Sivakumar G, Balaraman E. First-Row Transition-Metal Catalyzed Acceptorless Dehydrogenation and Related Reactions: A Personal Account. CHEM REC 2021; 21:3839-3871. [PMID: 34415674 DOI: 10.1002/tcr.202100165] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/17/2021] [Accepted: 08/04/2021] [Indexed: 12/17/2022]
Abstract
The development of sustainable catalytic protocols that circumvent the use of expensive and precious metal catalysts and avoid toxic reagents plays a crucial role in organic synthesis. Indeed, the direct employment of simple and abundantly available feedstock chemicals as the starting materials broadens their synthetic application in contemporary research. In particular, the transition metal-catalyzed diversification of alcohols with various nucleophilic partners to construct a wide range of building blocks is a powerful and highly desirable methodology. Moreover, the replacement of precious metal catalysts by non-precious and less toxic metals for selective transformations is one of the main goals and has been paid significant attention to in modern chemistry. In view of this, the first-row transition metal catalysts find extensive applications in various synthetic transformations such as catalytic hydrogenation, dehydrogenation, and related reactions. Herein, we have disclosed our recent developments on the base-metal catalysis such as Mn, Fe, Co, and Ni for the acceptorless dehydrogenation reactions and its application in the C-C and C-N bond formation via hydrogen auto-transfer (HA) and acceptorless dehydrogenation coupling (ADC) reactions. These HA/ADC protocols employ alcohol as alkylating agents and eliminate water and/or hydrogen gas as by-products, representing highly atom-efficient and environmentally benign reactions. Furthermore, diverse simple to complex organic molecules synthesis by C-C and C-N bond formation using feedstock alcohols are also overviewed. Overall, this account deals with the contribution and development of efficient and novel homogeneous as well as heterogeneous base-metal catalysts for sustainable chemical synthesis.
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Affiliation(s)
- Murugan Subaramanian
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, 517507, India
| | - Ganesan Sivakumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, 517507, India
| | - Ekambaram Balaraman
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, 517507, India
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30
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Niu X, Yang L. Manganese(III) Acetate Catalyzed Aerobic Dehydrogenation of Tertiary Indolines, Tetrahydroquinolines and an
N
‐Unsubstituted Indoline. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100581] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaokang Niu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education Collaborative Innovation Center for the Manufacture of Fluorine and Silicone Fine Chemicals and Materials Hangzhou Normal University 311121 Hangzhou People's Republic of China
| | - Lei Yang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education Collaborative Innovation Center for the Manufacture of Fluorine and Silicone Fine Chemicals and Materials Hangzhou Normal University 311121 Hangzhou People's Republic of China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical Physics Chinese Academy of Sciences 730000 Lanzhou People's Republic of China
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31
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Sardar B, Jamatia R, Pal D, Srimani D. Multicomponent Dehydrogenative Synthesis of Acridine‐1,8‐diones Catalyzed by Ru‐doped Hydrotalcite. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Bitan Sardar
- Department of Chemistry Indian Institute of Technology Guwahati Assam 781039 India
| | - Ramen Jamatia
- Department of Chemistry Indian Institute of Technology Guwahati Assam 781039 India
- Department of Chemistry Rajiv Gandhi University Rono Hills Doimukh 791112 Arunachal Pradesh India
| | - Debjyoti Pal
- Department of Chemistry Indian Institute of Technology Guwahati Assam 781039 India
| | - Dipankar Srimani
- Department of Chemistry Indian Institute of Technology Guwahati Assam 781039 India
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32
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Motokura K, Ozawa N, Sato R, Manaka Y, Chun W. Porous FeO(OH) Dispersed on Mg‐Al Hydrotalcite Surface for One‐Pot Synthesis of Quinoline Derivatives. ChemCatChem 2021. [DOI: 10.1002/cctc.202100338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ken Motokura
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8502 Japan
- PRESTO, Japan Science and Technology Agency (JST) 4-1-8 Honcho, Kawaguchi Saitama 332-0012 Japan
- Present address: Department of Chemistry and Life Science Yokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | - Nao Ozawa
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8502 Japan
| | - Risako Sato
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8502 Japan
| | - Yuichi Manaka
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8502 Japan
- Renewable Energy Research Center National Institute of Advanced Industrial Science and Technology (AIST) 2-2-9 Machiikedai, Koriyama Fukushima 963-0298 Japan
| | - Wang‐Jae Chun
- Graduate School of Arts and Sciences International Christian University Mitaka, Tokyo 181-8585 Japan
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33
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Takallou A, Mesgarsaravi N, Beigbaghlou SS, Sakhaee N, Halimehjani AZ. Recent Developments in Dehydrogenative Organic Transformations Catalyzed by Homogeneous Phosphine‐Free Earth‐Abundant Metal Complexes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ahmad Takallou
- Faculty of Chemistry Kharazmi University 49 Mofateh St. Tehran 15719-14911 Iran
| | | | | | - Nader Sakhaee
- Roger Adams Lab, School of Chemical Sciences University of Illinois Urbana Champaign Illinois 61801 USA
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34
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Liu Y, Yu T, Zeng Y, Chen J, Yang G, Li Y. Efficient acceptorless dehydrogenation of hydrogen-rich N-heterocycles photocatalyzed by Ni(OH)2@CdSe/CdS quantum dots. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00366f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ni(OH)2@CdSe/CdS QDs exhibit excellent photocatalytic acceptorless dehydrogenation of hydrogen-rich N-heterocycles with the release of hydrogen at ambient temperature.
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Affiliation(s)
- Yanpeng Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Tianjun Yu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Yi Zeng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Jinping Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Guoqiang Yang
- University of Chinese Academy of Sciences
- Beijing
- P. R. China
- Key Laboratory of Photochemistry
- Institute of Chemistry
| | - Yi Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
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35
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Yang W, Zhu Y, Li J, Chen Z, Nosheen F, Zhang Q, Zhang Z. Understanding the dehydrogenation mechanism over iron nanoparticles catalysts based on density functional theory. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.10.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Zhang Y, Wang J, Zhou F, Liu J. An effective strategy for hydrogen supply: catalytic acceptorless dehydrogenation of N-heterocycles. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00138h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Catalytic acceptorless dehydrogenation of N-heterocycles will offer great hope to solve numerous existing complex scientific and technological problems with simple, efficient, stable and controllable energy output, especially facilitating development in the field of PEMFC.
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Affiliation(s)
- Yujing Zhang
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - Jixue Wang
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - Feng Zhou
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Jiacheng Liu
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
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37
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Xie Z, Chen B, Zheng L, Peng F, Liu H, Han B. Monomeric vanadium oxide: a very efficient species for promoting aerobic oxidative dehydrogenation of N-heterocycles. NEW J CHEM 2021. [DOI: 10.1039/d0nj04708b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The isolated monomeric VO4 species, controlled by natural ligand tartaric acid, in the VOx/NbOy@C catalysts exhibited excellent performances and good recyclability in the dehydrogenation of N-heterocycles.
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Affiliation(s)
- Zhenbing Xie
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Bingfeng Chen
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Lirong Zheng
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - Fangfang Peng
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
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38
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Viola A, Peron J, Giraud M, Sicard L, Chevillot-Biraud A, Decorse P, Nowak S, Beaunier P, Lang P, Piquemal JY. On the importance of the crystalline surface structure on the catalytic activity and stability of tailored unsupported cobalt nanoparticles for the solvent-free acceptor-less alcohol dehydrogenation. J Colloid Interface Sci 2020; 573:165-175. [PMID: 32278948 DOI: 10.1016/j.jcis.2020.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/24/2020] [Accepted: 04/02/2020] [Indexed: 11/28/2022]
Abstract
Unsupported nanoparticles are now recognized as model catalysts to evaluate the intrinsic activity of metal particles, irrespectively of that of the support. Co nanoparticles with different morphologies, rods, diabolos and cubes have been prepared by the polyol process and tested for the acceptorless catalytic dehydrogenation of alcohols under solvent-free conditions. Rods crystallize with the pure hcp structure, diabolos with a mixture of hcp and fcc phases, while the cubes crystallize in a complex mixture of hcp, fcc and ε-Co phases. All the cobalt particles are found to be highly selective towards the oxidation of a model secondary alcohol, octan-2-ol, into the corresponding ketone while no significant activity is found with octan-1-ol. Our results show the strong influence of particle shape on the activity and catalytic stability of the catalysts: Co nanorods display the highest conversion (85%), selectivity (95%) and recyclability compared to Co diabolos and Co cubes. We correlate the nanorods excellent stability with a strong binding of carboxylate ligands on their {1 1 2¯ 0} facets, preserving their crystalline superficial structure, as evidenced by phase modulation infrared reflection absorption spectroscopy.
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Affiliation(s)
- Arnaud Viola
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, F-75013 Paris, France
| | - Jennifer Peron
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, F-75013 Paris, France
| | - Marion Giraud
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, F-75013 Paris, France
| | - Lorette Sicard
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, F-75013 Paris, France
| | | | - Philippe Decorse
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, F-75013 Paris, France
| | - Sophie Nowak
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, F-75013 Paris, France
| | - Patricia Beaunier
- Sorbonne Université, CNRS, UMR 7197, Laboratoire de Réactivité de Surface, 75005 Paris, France
| | - Philippe Lang
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, F-75013 Paris, France
| | - Jean-Yves Piquemal
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, F-75013 Paris, France.
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39
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Zhang D, Iwai T, Sawamura M. Ir-Catalyzed Reversible Acceptorless Dehydrogenation/Hydrogenation of N-Substituted and Unsubstituted Heterocycles Enabled by a Polymer-Cross-Linking Bisphosphine. Org Lett 2020; 22:5240-5245. [PMID: 32610931 DOI: 10.1021/acs.orglett.0c01905] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The polystyrene-cross-linking bisphosphine ligand PS-DPPBz was effective for the Ir-catalyzed reversible acceptorless dehydrogenation/hydrogenation of N-heterocycles. Notably, this protocol is applicable to the dehydrogenation of N-substituted indoline derivatives with various N-substituents with different electronic and steric natures. A reaction pathway involving oxidative addition of an N-adjacent C(sp3)-H bond to a bisphosphine-coordinated Ir(I) center is proposed for the dehydrogenation of N-substituted substrates.
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Affiliation(s)
- Deliang Zhang
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Tomohiro Iwai
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Masaya Sawamura
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo 001-0021, Japan
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40
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Kumar A, Kumari N, Dubbu S, Kumar S, Kwon T, Koo JH, Lim J, Kim I, Cho Y, Rho J, Lee IS. Nanocatalosomes as Plasmonic Bilayer Shells with Interlayer Catalytic Nanospaces for Solar‐Light‐Induced Reactions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Amit Kumar
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of ChemistryPohang University of Science and Technology (POSTECH) Pohang 37673 South Korea
| | - Nitee Kumari
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of ChemistryPohang University of Science and Technology (POSTECH) Pohang 37673 South Korea
| | - Sateesh Dubbu
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of ChemistryPohang University of Science and Technology (POSTECH) Pohang 37673 South Korea
| | - Sumit Kumar
- Center for Soft and Living MatterInstitute for Basic Science (IBS) and Department of Biomedical EngineeringSchool of Life Sciences Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea
| | - Taewan Kwon
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of ChemistryPohang University of Science and Technology (POSTECH) Pohang 37673 South Korea
| | - Jung Hun Koo
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of ChemistryPohang University of Science and Technology (POSTECH) Pohang 37673 South Korea
| | - Jongwon Lim
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of ChemistryPohang University of Science and Technology (POSTECH) Pohang 37673 South Korea
| | - Inki Kim
- Department of Mechanical EngineeringPohang University of Science and Technology (POSTECH) Pohang 37673 South Korea
| | - Yoon‐Kyoung Cho
- Center for Soft and Living MatterInstitute for Basic Science (IBS) and Department of Biomedical EngineeringSchool of Life Sciences Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea
| | - Junsuk Rho
- Department of Mechanical EngineeringPohang University of Science and Technology (POSTECH) Pohang 37673 South Korea
- Department of Chemical EngineeringPohang University of Science and Technology (POSTECH) Pohang 37673 South Korea
| | - In Su Lee
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of ChemistryPohang University of Science and Technology (POSTECH) Pohang 37673 South Korea
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41
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Yang R, Yue S, Tan W, Xie Y, Cai H. DMSO/ t-BuONa/O 2-Mediated Aerobic Dehydrogenation of Saturated N-Heterocycles. J Org Chem 2020; 85:7501-7509. [PMID: 32368910 DOI: 10.1021/acs.joc.9b03447] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Aromatic N-heterocycles such as quinolines, isoquinolines, and indolines are synthesized via sodium tert-butoxide-promoted oxidative dehydrogenation of the saturated heterocycles in DMSO solution. This reaction proceeds under mild reaction conditions and has a good functional group tolerance. Mechanistic studies suggest a radical pathway involving hydrogen abstraction of dimsyl radicals from the N-H bond or α-C-H of the substrates and subsequent oxidation of the nitrogen or α-aminoalkyl radicals.
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Affiliation(s)
- Ruchun Yang
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China.,Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Shusheng Yue
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Wei Tan
- Clinic Laboratory, People's Hospital of Yichun City, Yichun, Jiangxi 336000, China
| | - Yongfa Xie
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Hu Cai
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
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42
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Kumar A, Kumari N, Dubbu S, Kumar S, Kwon T, Koo JH, Lim J, Kim I, Cho YK, Rho J, Lee IS. Nanocatalosomes as Plasmonic Bilayer Shells with Interlayer Catalytic Nanospaces for Solar-Light-Induced Reactions. Angew Chem Int Ed Engl 2020; 59:9460-9469. [PMID: 32237185 DOI: 10.1002/anie.202001531] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Indexed: 12/19/2022]
Abstract
Interest and challenges remain in designing and synthesizing catalysts with nature-like complexity at few-nm scale to harness unprecedented functionalities by using sustainable solar light. We introduce "nanocatalosomes"-a bio-inspired bilayer-vesicular design of nanoreactor with metallic bilayer shell-in-shell structure, having numerous controllable confined cavities within few-nm interlayer space, customizable with different noble metals. The intershell-confined plasmonically coupled hot-nanospaces within the few-nm cavities play a pivotal role in harnessing catalytic effects for various organic transformations, as demonstrated by "acceptorless dehydrogenation", "Suzuki-Miyaura cross-coupling" and "alkynyl annulation" affording clean conversions and turnover frequencies (TOFs) at least one order of magnitude higher than state-of-the-art Au-nanorod-based plasmonic catalysts. This work paves the way towards next-generation nanoreactors for chemical transformations with solar energy.
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Affiliation(s)
- Amit Kumar
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
| | - Nitee Kumari
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
| | - Sateesh Dubbu
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
| | - Sumit Kumar
- Center for Soft and Living Matter, Institute for Basic Science (IBS) and Department of Biomedical Engineering, School of Life Sciences Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Taewan Kwon
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
| | - Jung Hun Koo
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
| | - Jongwon Lim
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
| | - Inki Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
| | - Yoon-Kyoung Cho
- Center for Soft and Living Matter, Institute for Basic Science (IBS) and Department of Biomedical Engineering, School of Life Sciences Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Junsuk Rho
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea.,Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
| | - In Su Lee
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
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43
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Balayeva NO, Mamiyev Z, Dillert R, Zheng N, Bahnemann DW. Rh/TiO2-Photocatalyzed Acceptorless Dehydrogenation of N-Heterocycles upon Visible-Light Illumination. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00556] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Narmina O. Balayeva
- Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University of Hannover, Callinstr. 5, D-30167 Hannover, Germany
| | - Zamin Mamiyev
- Institute of Solid State Physics, Gottfried Wilhelm Leibniz University of Hannover, Appelstr. 2, D-30167 Hannover, Germany
- Laboratory of Nano and Quantum Engineering, Gottfried Wilhelm Leibniz University of Hannover, Schneiderberg 39, D-30167 Hannover, Germany
| | - Ralf Dillert
- Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University of Hannover, Callinstr. 5, D-30167 Hannover, Germany
- Laboratory of Nano and Quantum Engineering, Gottfried Wilhelm Leibniz University of Hannover, Schneiderberg 39, D-30167 Hannover, Germany
| | - Nan Zheng
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Detlef W. Bahnemann
- Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University of Hannover, Callinstr. 5, D-30167 Hannover, Germany
- Laboratory of Nano and Quantum Engineering, Gottfried Wilhelm Leibniz University of Hannover, Schneiderberg 39, D-30167 Hannover, Germany
- Laboratory “Photoactive Nanocomposite Materials”, Saint-Petersburg State University, Ulyanovskaya str. 1, Peterhof, 198504 Saint-Petersburg, Russia
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44
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Cui X, Li W, Junge K, Fei Z, Beller M, Dyson PJ. Selective Acceptorless Dehydrogenation of Primary Amines to Imines by Core–Shell Cobalt Nanoparticles. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915526] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Xinjiang Cui
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Wu Li
- Leibniz-Institute for Catalysis Albert Einstein Str. 29a 18059 Rostock Germany
| | - Kathrin Junge
- Leibniz-Institute for Catalysis Albert Einstein Str. 29a 18059 Rostock Germany
| | - Zhaofu Fei
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Matthias Beller
- Leibniz-Institute for Catalysis Albert Einstein Str. 29a 18059 Rostock Germany
| | - Paul J. Dyson
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL) 1015 Lausanne Switzerland
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45
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Cui X, Li W, Junge K, Fei Z, Beller M, Dyson PJ. Selective Acceptorless Dehydrogenation of Primary Amines to Imines by Core-Shell Cobalt Nanoparticles. Angew Chem Int Ed Engl 2020; 59:7501-7507. [PMID: 32049401 PMCID: PMC7217016 DOI: 10.1002/anie.201915526] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/16/2020] [Indexed: 01/25/2023]
Abstract
Core–shell nanocatalysts are attractive due to their versatility and stability. Here, we describe cobalt nanoparticles encapsulated within graphitic shells prepared via the pyrolysis of a cationic poly‐ionic liquid (PIL) with a cobalt(II) chloride anion. The resulting material has a core–shell structure that displays excellent activity and selectivity in the self‐dehydrogenation and hetero‐dehydrogenation of primary amines to their corresponding imines. Furthermore, the catalyst exhibits excellent activity in the synthesis of secondary imines from substrates with various reducible functional groups (C=C, C≡C and C≡N) and amino acid derivatives.
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Affiliation(s)
- Xinjiang Cui
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Wu Li
- Leibniz-Institute for Catalysis, Albert Einstein Str. 29a, 18059, Rostock, Germany
| | - Kathrin Junge
- Leibniz-Institute for Catalysis, Albert Einstein Str. 29a, 18059, Rostock, Germany
| | - Zhaofu Fei
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Matthias Beller
- Leibniz-Institute for Catalysis, Albert Einstein Str. 29a, 18059, Rostock, Germany
| | - Paul J Dyson
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
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46
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Bi X, Tang T, Meng X, Gou M, Liu X, Zhao P. Aerobic oxidative dehydrogenation of N-heterocycles over OMS-2-based nanocomposite catalysts: preparation, characterization and kinetic study. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01968e] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OMS-2-based nanocomposites doped with sodium phosphotungstate were prepared and their remarkably enhanced catalytic activity and recyclability in aerobic oxidative dehydrogenation of N-heterocycles were examined in detail.
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Affiliation(s)
- Xiuru Bi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Tao Tang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Xu Meng
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Mingxia Gou
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Xiang Liu
- College of Materials and Chemical Engineering
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang
- China
| | - Peiqing Zhao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences
- Lanzhou 730000
- China
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Tuo X, Chen S, Jiang P, Ni P, Wang X, Deng GJ. Iodine-catalyzed convergent aerobic dehydro-aromatization toward benzazoles and benzazines. RSC Adv 2020; 10:8348-8351. [PMID: 35497844 PMCID: PMC9049994 DOI: 10.1039/c9ra10964a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 02/15/2020] [Indexed: 02/02/2023] Open
Abstract
An iodine-catalyzed aerobic dehydro-aromatization has been developed, providing straightforward and efficient access to various benzoazoles and benzoazines. The present transition-metal-free protocol enables the dehydro-aromatization of tetrahydrobenzazoles and tetrahydroquinolines with molecular oxygen as the green oxidant, along with some other N-heterocycles. Hence, a broad range of heteroaromatic compounds are generated in moderate to good yields under facile reaction conditions. An iodine-catalyzed aerobic dehydro-aromatization has been developed, providing a straightforward and efficient access to various benzoazoles and benzoazines.![]()
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Affiliation(s)
- Xiaolong Tuo
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Shanping Chen
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Pingyu Jiang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Penghui Ni
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Xiaodong Wang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Guo-Jun Deng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
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Subaramanian M, Midya SP, Ramar PM, Balaraman E. General Synthesis of N-Alkylation of Amines with Secondary Alcohols via Hydrogen Autotransfer. Org Lett 2019; 21:8899-8903. [DOI: 10.1021/acs.orglett.9b02990] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Murugan Subaramanian
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati − 517507, India
| | - Siba P. Midya
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati − 517507, India
| | - Palmurukan M. Ramar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati − 517507, India
| | - Ekambaram Balaraman
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati − 517507, India
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Casas F, Trincado M, Rodriguez‐Lugo R, Baneerje D, Grützmacher H. A Diaminopropane Diolefin Ru(0) Complex Catalyzes Hydrogenation and Dehydrogenation Reactions. ChemCatChem 2019. [DOI: 10.1002/cctc.201901739] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Fernando Casas
- Department of Chemistry and Applied BiosciencesETH Zürich Zürich 8093 Switzerland
| | - Monica Trincado
- Department of Chemistry and Applied BiosciencesETH Zürich Zürich 8093 Switzerland
| | - Rafael Rodriguez‐Lugo
- Laboratorio de BioinorgánicaCentro de Química Instituto Venezolano de Investigaciones Científicas (IVIC) Caracas 1020 A Venezuela
| | - Dipshikha Baneerje
- Department of Chemistry and Applied BiosciencesETH Zürich Zürich 8093 Switzerland
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied BiosciencesETH Zürich Zürich 8093 Switzerland
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