1
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Abbasi F, Sardarian AR. Efficient base- and ligand-free palladium catalysed O-arylation of phenols in choline chloride:triethanolamine as a reusable deep eutectic solvent. ROYAL SOCIETY OPEN SCIENCE 2024; 11:240045. [PMID: 39100160 PMCID: PMC11295942 DOI: 10.1098/rsos.240045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/18/2024] [Accepted: 04/04/2024] [Indexed: 08/06/2024]
Abstract
In this paper, we present a novel and sustainable approach using choline chloride:triethanolamine as a green, efficient and reusable deep eutectic solvent (DES) for Pd-catalysed O-arylation reactions with Pd/BaSO4 (10%). By using the unique properties of DESs, we successfully achieved C-O bond formation without the need for additional solvents, bases and ligands. This solvent/catalyst system ([ChCl][TEA]2) functioned as a dual catalyst and solvent system, enabling fast and environmentally friendly C-O bond formation from phenol derivatives and electron-deficient aryl halides, leading to remarkable yields under mild reaction conditions. To identify and characterize this DES, we employed differential scanning calorimetry, thermogravimetric analysis, Fourier-transform infrared spectroscopy, refractive index, viscosity, the potential of hydrogen (pH) and conductivity measurements. One of the remarkable advantages of this DES system is its exceptional stability. This solvent/catalyst system exhibited high stability throughout the reaction cycles, showing no significant loss of activity. As a result, this DES and catalyst (Pd/BaSO4 (10%)) can be easily recycled and re-used for up to three consecutive cycles, making it an economically and environmentally attractive option for organic reactions. Our approach offers several key benefits, including simple catalyst preparation, quick reaction times and excellent production efficiency.
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Affiliation(s)
- Fatemeh Abbasi
- Chemistry Department, College of Sciences, Shiraz University, Shiraz71946-84795, Iran
| | - Ali Reza Sardarian
- Chemistry Department, College of Sciences, Shiraz University, Shiraz71946-84795, Iran
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2
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Kim JY, Kang J, Cha S, Kim H, Kim D, Kang H, Choi I, Kim M. Stability of Zr-Based UiO-66 Metal-Organic Frameworks in Basic Solutions. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:110. [PMID: 38202565 PMCID: PMC10780619 DOI: 10.3390/nano14010110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024]
Abstract
Although Zr-based metal-organic frameworks (MOFs) exhibit robust chemical and physical stability in the presence of moisture and acidic conditions, their susceptibility to nucleophilic attacks from bases poses a critical challenge to their overall stability. Herein, we systematically investigate the stability of Zr-based UiO-66 (UiO = University of Oslo) MOFs in basic solutions. The impact of 11 standard bases, including inorganic salts and organic bases, on the stability of these MOFs is examined. The destruction of the framework is confirmed through powder X-ray diffraction (PXRD) patterns, and the monitored dissolution of ligands from the framework is assessed using nuclear magnetic resonance (NMR) spectroscopy. Our key findings reveal a direct correlation between the strength and concentration of the base and the destruction of the MOFs. The summarized data provide valuable insights that can guide the practical application of Zr-based UiO-66 MOFs under basic conditions, offering essential information for their optimal utilization in various settings.
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Affiliation(s)
- Jun Yeong Kim
- Department of Chemistry, Chungbuk National University, Cheongju 28644, Republic of Korea; (J.Y.K.); (J.K.); (S.C.); (H.K.); (D.K.)
| | - Jiwon Kang
- Department of Chemistry, Chungbuk National University, Cheongju 28644, Republic of Korea; (J.Y.K.); (J.K.); (S.C.); (H.K.); (D.K.)
| | - Seungheon Cha
- Department of Chemistry, Chungbuk National University, Cheongju 28644, Republic of Korea; (J.Y.K.); (J.K.); (S.C.); (H.K.); (D.K.)
| | - Haein Kim
- Department of Chemistry, Chungbuk National University, Cheongju 28644, Republic of Korea; (J.Y.K.); (J.K.); (S.C.); (H.K.); (D.K.)
| | - Dopil Kim
- Department of Chemistry, Chungbuk National University, Cheongju 28644, Republic of Korea; (J.Y.K.); (J.K.); (S.C.); (H.K.); (D.K.)
| | - Houng Kang
- Department of Chemistry Education, Chungbuk National University, Cheongju 28644, Republic of Korea;
| | - Isaac Choi
- Department of Chemistry, Chungbuk National University, Cheongju 28644, Republic of Korea; (J.Y.K.); (J.K.); (S.C.); (H.K.); (D.K.)
| | - Min Kim
- Department of Chemistry, Chungbuk National University, Cheongju 28644, Republic of Korea; (J.Y.K.); (J.K.); (S.C.); (H.K.); (D.K.)
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3
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Kraka E, Antonio JJ, Freindorf M. Reaction mechanism - explored with the unified reaction valley approach. Chem Commun (Camb) 2023; 59:7151-7165. [PMID: 37233449 DOI: 10.1039/d3cc01576a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
One of the ultimate goals of chemistry is to understand and manipulate chemical reactions, which implies the ability to monitor the reaction and its underlying mechanism at an atomic scale. In this article, we introduce the Unified Reaction Valley Approach (URVA) as a tool for elucidating reaction mechanisms, complementing existing computational procedures. URVA combines the concept of the potential energy surface with vibrational spectroscopy and describes a chemical reaction via the reaction path and the surrounding reaction valley traced out by the reacting species on the potential energy surface on their way from the entrance to the exit channel, where the products are located. The key feature of URVA is the focus on the curving of the reaction path. Moving along the reaction path, any electronic structure change of the reacting species is registered by a change in the normal vibrational modes spanning the reaction valley and their coupling with the path, which recovers the curvature of the reaction path. This leads to a unique curvature profile for each chemical reaction, with curvature minima reflecting minimal change and curvature maxima indicating the location of important chemical events such as bond breaking/formation, charge polarization and transfer, rehybridization, etc. A decomposition of the path curvature into internal coordinate components or other coordinates of relevance for the reaction under consideration, provides comprehensive insight into the origin of the chemical changes taking place. After giving an overview of current experimental and computational efforts to gain insight into the mechanism of a chemical reaction and presenting the theoretical background of URVA, we illustrate how URVA works for three diverse processes, (i) [1,3] hydrogen transfer reactions; (ii) α-keto-amino inhibitor for SARS-CoV-2 Mpro; (iii) Rh-catalyzed cyanation. We hope that this article will inspire our computational colleagues to add URVA to their repertoire and will serve as an incubator for new reaction mechanisms to be studied in collaboration with our experimental experts in the field.
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Affiliation(s)
- Elfi Kraka
- Computational and Theoretical Chemistry Group (CATCO), Department of Chemistry, Southern Methodist University, 3215 Daniel Ave, Dallas, TX 75275-0314, USA.
| | - Juliana J Antonio
- Computational and Theoretical Chemistry Group (CATCO), Department of Chemistry, Southern Methodist University, 3215 Daniel Ave, Dallas, TX 75275-0314, USA.
| | - Marek Freindorf
- Computational and Theoretical Chemistry Group (CATCO), Department of Chemistry, Southern Methodist University, 3215 Daniel Ave, Dallas, TX 75275-0314, USA.
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4
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Lee S, Dao PDQ, Lim HJ, Cho CS. Recyclable Magnetic Cu-MOF-74-Catalyzed C(sp 2)-N Coupling and Cyclization under Microwave Irradiation: Synthesis of Imidazo[1,2- c]quinazolines and Their Analogues. ACS OMEGA 2023; 8:16218-16227. [PMID: 37179653 PMCID: PMC10173347 DOI: 10.1021/acsomega.3c00680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/06/2023] [Indexed: 05/15/2023]
Abstract
Magnetic Cu-MOF-74 (Fe3O4@SiO2@Cu-MOF-74) was synthesized for the first time by grafting MOF-74 (copper as the metal center) on the surface of core-shell magnetic carboxyl-functionalized silica gel (Fe3O4@SiO2-COOH), which was prepared by coating core Fe3O4 nanoparticles with hydrolyzed 2-(3-(triethoxysilyl)propyl)succinic anhydride and tetraethyl orthosilicate. The structure of Fe3O4@SiO2@Cu-MOF-74 nanoparticles was characterized by Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM). The prepared Fe3O4@SiO2@Cu-MOF-74 nanoparticles could be applied as a recyclable catalyst to the synthesis of N-fused hybrid scaffolds. 2-(2-Bromoaryl)imidazoles and 2-(2-bromovinyl)imidazoles were coupled and cyclized with cyanamide in DMF in the presence of a catalytic amount of Fe3O4@SiO2@Cu-MOF-74 along with a base to give imidazo[1,2-c]quinazolines and imidazo[1,2-c]pyrimidines, respectively, in good yields. The Fe3O4@SiO2@Cu-MOF-74 catalyst could be easily recovered by a super magnetic bar and recycled more than four times while almost maintaining catalytic activity.
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Affiliation(s)
- Seong
Weon Lee
- Department
of Applied Chemistry, Kyungpook National
University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - Pham Duy Quang Dao
- Department
of Applied Chemistry, Kyungpook National
University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - Ho-Jin Lim
- Department
of Environmental Engineering, Kyungpook
National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - Chan Sik Cho
- Department
of Applied Chemistry, Kyungpook National
University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
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5
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Fan X, Huang Y, Zhou Y, Li Y. Shaping of Pd@UiO-66-biguanidine MOFs into composite beads with Cu-based CMC for synergistic catalysis towards CO-free carbonylative Sonogashira reaction. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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6
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Chen W, Fan WY, Sohail M, Madrahimov ST, Bengali AA. Solubilizing Metal-Organic Frameworks for an In Situ IR-SEC Study of a CO 2 Reduction Catalyst. ACS APPLIED MATERIALS & INTERFACES 2023; 15:16593-16597. [PMID: 36943895 PMCID: PMC10848202 DOI: 10.1021/acsami.2c20157] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
Metal-organic frameworks (MOFs) are typically assembled by bridging metal centers with organic linkers for various applications, including providing robust support for heterogeneous catalysts for CO2 reduction. In this study, we have demonstrated the solubilization of a MOF tethered to a CO2-reducing electrocatalyst and studied its fundamental electrochemistry in THF solvent using infrared spectroelectrochemistry (IR-SEC). The fundamental electrochemical properties of this immobilized catalyst were compared to that of its homogeneous counterpart. This approach provides a foundation for future experimental studies to bridge the gap between homogeneous and heterogeneous electrocatalysis.
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Affiliation(s)
- Wenmiao Chen
- Division
of Arts and Sciences, Texas A&M University
Qatar, PO Box 23874, Education City, Doha, Qatar
- Department
of Chemistry, Texas A&M University, Galveston, Texas 77553, United States
| | - Wai Yip Fan
- National
University of Singapore, Singapore 119077, Singapore
| | - Muhammad Sohail
- Division
of Arts and Sciences, Texas A&M University
Qatar, PO Box 23874, Education City, Doha, Qatar
| | - Sherzod T. Madrahimov
- Division
of Arts and Sciences, Texas A&M University
Qatar, PO Box 23874, Education City, Doha, Qatar
| | - Ashfaq A. Bengali
- Division
of Arts and Sciences, Texas A&M University
Qatar, PO Box 23874, Education City, Doha, Qatar
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7
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Peng Y, Sanati S, Morsali A, García H. Metal-Organic Frameworks as Electrocatalysts. Angew Chem Int Ed Engl 2023; 62:e202214707. [PMID: 36468543 DOI: 10.1002/anie.202214707] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/02/2022] [Accepted: 12/02/2022] [Indexed: 12/11/2022]
Abstract
Transition metal complexes are well-known homogeneous electrocatalysts. In this regard, metal-organic frameworks (MOFs) can be considered as an ensemble of transition metal complexes ordered in a periodic arrangement. In addition, MOFs have several additional positive structural features that make them suitable for electrocatalysis, including large surface area, high porosity, and high content of accessible transition metal with exchangeable coordination positions. The present review describes the current state in the use of MOFs as electrocatalysts, both as host of electroactive guests and their direct electrocatalytic activity, particularly in the case of bimetallic MOFs. The field of MOF-derived materials is purposely not covered, focusing on the direct use of MOFs or its composites as electrocatalysts. Special attention has been paid to present strategies to overcome their poor electrical conductivity and limited stability.
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Affiliation(s)
- Yong Peng
- Instituto deTecnología Química,CSIV-UPV, Av.Delos Naranjos s/n, 46022, Valencia, Spain.,Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße29a, 18059, Rostock, Germany
| | - Soheila Sanati
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, 14115 175, Iran
| | - Ali Morsali
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, 14115 175, Iran
| | - Hermenegildo García
- Instituto deTecnología Química,CSIV-UPV, Av.Delos Naranjos s/n, 46022, Valencia, Spain
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8
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Wei Q, Xue S, Wu W, Liu S, Li S, Zhang C, Jiang S. Plasma Meets MOFs: Synthesis, Modifications, and Functionalities. CHEM REC 2023:e202200263. [PMID: 36633461 DOI: 10.1002/tcr.202200263] [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: 11/24/2022] [Revised: 12/25/2022] [Indexed: 01/13/2023]
Abstract
As a porous and network materials consisting of metals and organic ligands, metal-organic frameworks (MOFs) have become one of excellent crystalline porous materials and play an important role in the era about materials science. Plasma, as a useful tool for stimulating efficient reactions under many conditions, and the plasma-assisted technology gets more attractions and endows MOFs more properties. Based on its feature, the research about the modifications and functionalities of MOFs have been developing a certain extent. This review contains a description of the methods for plasma-assisted modification and synthesis of MOFs, with specifically focusing on the plasma-assisted potential for modifications and functionalities of MOFs. The different applications of plasma-assisted MOFs were also presented.
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Affiliation(s)
- Qian Wei
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Sen Xue
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Weijie Wu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Suli Liu
- Key Laboratory of Advanced Functional Materials of Nanjing, Nanjing Xiaozhuang University, Nanjing, 211171, China
| | - Shanshan Li
- College of Pharmacy, Southwest Minzu University, Chengdu, 610000, China
| | - Chunmei Zhang
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Shahua Jiang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
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9
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CuxPd1-xO nanoparticle-reduced graphene oxide nanocomposite catalyzed direct ortho-C–H acylation of 2-aryl pyridines. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2022.106591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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10
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Nikseresht A, Bagherinia R, Mohammadi M, Mehravar R. Phosphomolybdic acid hydrate encapsulated in MIL-53 (Fe): a novel heterogeneous heteropoly acid catalyst for ultrasound-assisted regioselective nitration of phenols. RSC Adv 2022; 13:674-687. [PMID: 36605662 PMCID: PMC9783539 DOI: 10.1039/d2ra07077d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/05/2022] [Indexed: 12/25/2022] Open
Abstract
In this study, a heterogeneous catalyst, PMA@MIL-53 (Fe) (MIL ⇒ Matériaux de l'Institut Lavoisier), has been used to replace the usual mineral acids such as sulfuric acid. A wide variety of nitration methods require the use of a mixture of acids such as concentrated nitric acid and sulfuric acid, which result in producing a large amount of acidic waste. During recent years, the use of the heterogeneous system for the nitration of aromatic compounds has been highly considered and used by chemists due to some specific advantages, i.e. easy separation of the product from the reaction mixture, the possibility of recycling and reusing the catalyst, etc. Herein, the catalyst was synthesized using a metal-organic framework and a heteropoly phosphomolybdic acid. The PMA@MIL-53 (Fe) was prepared using a similar method of MIL-53 (Fe) synthesis. Afterwards, FeCl3·6H2O and 1,4-benzene dicarboxylic acid (BDC) in a dimethylformamide solution were placed in an ultrasound bath and, then, HPA (heteropoly acid) was added to the reaction mixture. The PMA (phosphomolybdic acid) encapsulation in MIL-53 (Fe) was confirmed using various analysis. Under optimal conditions, the catalytic activity of PMA@MIL-53 (Fe) was evaluated in nitration of phenol under ultrasonic waves. Besides, the ratio of the two products of ortho and para was obtained using GC. Optimum conditions were reached after 15 minutes, in such a way that the loaded PMA was 0.02 g under optimal conditions, the efficiencies of ortho-nitrophenol and para nitrophenol were 54.98 and 45.01, respectively.
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Affiliation(s)
- Ahmad Nikseresht
- Department of Chemistry, Payame Noor University (PNU) 19395-4697 Tehran Iran
| | - Rasoul Bagherinia
- Department of Chemistry, Payame Noor University (PNU) 19395-4697 Tehran Iran
| | - Masoud Mohammadi
- Department of Chemistry, Faculty of Science, Ilam University P. O. Box 69315516 Ilam Iran
| | - Reza Mehravar
- Department of Chemistry, Payame Noor University (PNU) 19395-4697 Tehran Iran
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11
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Van Emelen L, Lemmens V, Marquez C, Van Minnebruggen S, Usoltsev OA, Bugaev AL, Janssens K, Cheung KY, Van Velthoven N, De Vos DE. Cu-α-diimine Compounds Encapsulated in Porous Materials as Catalysts for Electrophilic Amination of Aromatic C-H Bonds. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51867-51880. [PMID: 36349551 DOI: 10.1021/acsami.2c13980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Electrophilic amination has emerged as a more environmentally benign approach to construct arene C-N bonds. However, heterogeneous catalysts remain largely unexplored in this area, even though their use could facilitate product purification and catalyst recovery. Here we investigate strategies to heterogenize a Cu(2,2'-bipyridine) catalyst for the amination of arenes lacking a directing group with hydroxylamine-O-sulfonic acid (HOSA). Besides immobilization of Cu on a metal-organic framework (MOF) or covalent organic framework (COF) with embedded 2,2'-bipyridines, a ship-in-a-bottle approach was followed in which the Cu complex is encapsulated in the pores of a zeolite. Recyclability and hot centrifugation tests show that zeolite Beta-entrapped CuII(2,2'-bipyridine) is superior in terms of stability. With N-methylmorpholine as a weakly coordinating, weak base, simple arenes, such as mesitylene, could be aminated with yields up to 59%, corresponding to a catalyst TON of 24. The zeolite could be used in three consecutive runs without a decrease in activity. Characterization of the catalyst by EPR and XAS showed that the active catalytic complex consisted of a site-isolated CuII species with one 2,2'-bipyridine ligand.
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Affiliation(s)
- Lisa Van Emelen
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F Post Box 2454, Leuven 3001, Belgium
| | - Vincent Lemmens
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F Post Box 2454, Leuven 3001, Belgium
| | - Carlos Marquez
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F Post Box 2454, Leuven 3001, Belgium
| | - Sam Van Minnebruggen
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F Post Box 2454, Leuven 3001, Belgium
| | - Oleg A Usoltsev
- The Smart Materials Research Institute at the Southern Federal University, Sladkova 178/24, Rostov-on-Don 344090, Russia
| | - Aram L Bugaev
- The Smart Materials Research Institute at the Southern Federal University, Sladkova 178/24, Rostov-on-Don 344090, Russia
| | - Kwinten Janssens
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F Post Box 2454, Leuven 3001, Belgium
| | - Ka Yan Cheung
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F Post Box 2454, Leuven 3001, Belgium
| | - Niels Van Velthoven
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F Post Box 2454, Leuven 3001, Belgium
| | - Dirk E De Vos
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200F Post Box 2454, Leuven 3001, Belgium
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12
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Mastalir Á, Molnár Á. Coupling reactions induced by ionic palladium species deposited onto porous support materials. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Liu M, Han B, Dyson PJ. Simultaneous Generation of Methyl Esters and CO in Lignin Transformation. Angew Chem Int Ed Engl 2022; 61:e202209093. [PMID: 35979750 PMCID: PMC9826404 DOI: 10.1002/anie.202209093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Indexed: 01/11/2023]
Abstract
Lignin is an abundant renewable carbon source. Due to its complex structure, utilization of lignin is very challenging. Herein, we describe an efficient strategy for the simultaneous utilization of lignin, in which the methoxy groups in lignin react with carboxylic acids to generate methyl carboxylates and the other alkyl and phenyl carbons react with oxygen to predominantly form CO that can be used directly in carbonylation reactions. The method was applied to the methylation of various functionalized aryl and alkyl carboxylic acids, including natural compounds, to produce valuable chemicals, including pharmaceuticals. No solid or liquid residues remain after the reaction. Mechanistic studies demonstrate that a well-ordered C-C and C-O bond activation sequence takes place to realize total transformation of lignin. This work opens a way for transformation of the entire lignin polymer into valuable products, exemplified by the synthesis of the pharmaceutical, Ramipril, on a gram scale.
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Affiliation(s)
- Mingyang Liu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing100190P. R. China,Institute of Chemical Sciences and EngineeringSwiss Federal Institute of Technology (EPFL)1015LausanneSwitzerland,School of Chemistry and Chemical EngineeringUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Buxing Han
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing100190P. R. China,School of Chemistry and Chemical EngineeringUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Paul J. Dyson
- Institute of Chemical Sciences and EngineeringSwiss Federal Institute of Technology (EPFL)1015LausanneSwitzerland
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14
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15
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Kim MJ, Lee SW, Dao PDQ, Cho CS. Synthesis of benzo[4,5]imidazo[1,2‐
a
]indolo[1,2‐
c
]quinazolines from 2‐(2‐bromoaryl)indoles and 2‐methoxybenzimidazoles under recyclable magnetic MOF‐199 catalysis. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6871] [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)
- Min Jeong Kim
- Department of Applied Chemistry Kyungpook National University Daegu Korea
| | - Seong Weon Lee
- Department of Applied Chemistry Kyungpook National University Daegu Korea
| | - Pham Duy Quang Dao
- Department of Applied Chemistry Kyungpook National University Daegu Korea
| | - Chan Sik Cho
- Department of Applied Chemistry Kyungpook National University Daegu Korea
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16
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Simultaneous Generation of Methyl Esters and CO in Lignin Transformation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Recent advances in organic electrosynthesis using heterogeneous catalysts modified electrodes. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.08.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Xu Z, Xu J, Zhou Y, Huang Y, Li Y. Pd immobilized on EDTA-modified cellulose: synthesis, characterization, and catalytic application in inter- and intramolecular Heck reactions and Larock reactions. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04766-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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19
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Liu X, Liu D, Muschin T, Bao A, Bai C, Bao YS. Supported Palladium Nanoparticles Catalyzed Intermolecular Carbopalladation of Nitriles and Organoboron Compounds. Front Chem 2022; 10:855850. [PMID: 35615308 PMCID: PMC9124771 DOI: 10.3389/fchem.2022.855850] [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: 01/17/2022] [Accepted: 04/05/2022] [Indexed: 11/13/2022] Open
Abstract
The first heterogeneous catalyzed example for the direct synthesis of aromatic ketones via intermolecular carbopalladation of aliphatic nitriles and organoboron compounds was developed. This mild method proceeds with a supported palladium nanoparticles catalyst that could be reused and recycled five times. The fresh and used catalysts were characterized by XPS and TEM. The XPS analysis indicated that Pd0 was the active species for the reaction. This methodology provides a mild and cost-effective strategy for the efficient synthesis of ketones.
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20
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Pd Nanoparticles Embedded Into MOF‑808: An efficient and reusable catalyst for Sonogashira and Heck cross-coupling reactions. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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21
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Flores JG, Delgado-García R, Sánchez-Sánchez M. Semiamorphous Fe-BDC: The missing link between the highly-demanded iron carboxylate MOF catalysts. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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22
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Cu nanoparticles embedded on reticular chitosan-derived N-doped carbon: Application to the catalytic hydrogenation of alkenes, alkynes and N-heteroarenes. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2021.112104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Density functional theory study on the reaction mechanism of Ni+-catalysed cyclohexane dehydrogenation. Struct Chem 2022. [DOI: 10.1007/s11224-021-01876-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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24
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Cirujano FG, Dhakshinamoorthy A. Supported metals on porous solids as heterogeneous catalysts for the synthesis of propargylamines. NEW J CHEM 2022. [DOI: 10.1039/d1nj05091e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This perspective summarizes recent developments in the synthesis of propargylamines using porous solids (zeolites, MOFs and carbon) as supports/catalysts.
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Affiliation(s)
- Francisco G. Cirujano
- Institute of Molecular Science (ICMOL), Universidad de Valencia, 46980 Paterna, Valencia, Spain
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25
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Van Emelen L, Henrion M, Lemmens R, De Vos D. C–N coupling reactions with arenes through C–H activation: the state-of-the-art versus the principles of green chemistry. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01827b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, we discuss the state-of-the-art in arene C–N coupling through C–H activation and to what extent it complies with the principles of green chemistry, with a focus on heterogeneously catalysed systems.
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Affiliation(s)
- Lisa Van Emelen
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
| | - Mickaël Henrion
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
| | - Robin Lemmens
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
| | - Dirk De Vos
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
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26
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Ghosh S, Nagarjun N, Alam M, Dhakshinamoorthy A, Biswas S. Friedel-Crafts alkylation reaction efficiently catalyzed by a di-amide functionalized Zr(IV) metal-organic framework. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2021.112007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Daliran S, Oveisi AR, Peng Y, López-Magano A, Khajeh M, Mas-Ballesté R, Alemán J, Luque R, Garcia H. Metal–organic framework (MOF)-, covalent-organic framework (COF)-, and porous-organic polymers (POP)-catalyzed selective C–H bond activation and functionalization reactions. Chem Soc Rev 2022; 51:7810-7882. [DOI: 10.1039/d1cs00976a] [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
The review summarizes the state-of-the-art of C–H active transformations over crystalline and amorphous porous materials as new emerging heterogeneous (photo)catalysts.
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Affiliation(s)
- Saba Daliran
- Department of Chemistry, Faculty of Sciences, Department of Chemistry, University of Zabol, 98615-538 Zabol, Iran
| | - Ali Reza Oveisi
- Department of Chemistry, Faculty of Sciences, Department of Chemistry, University of Zabol, 98615-538 Zabol, Iran
| | - Yong Peng
- Instituto de Tecnología Química CSIC-UPV, Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, Valencia 46022, Spain
| | - Alberto López-Magano
- Inorganic Chemistry Department, Módulo 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Mostafa Khajeh
- Department of Chemistry, Faculty of Sciences, Department of Chemistry, University of Zabol, 98615-538 Zabol, Iran
| | - Rubén Mas-Ballesté
- Inorganic Chemistry Department, Módulo 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - José Alemán
- Organic Chemistry Department, Módulo 1, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Rafael Luque
- Department of Organic Chemistry, University of Cordoba, Campus de Rabanales, EdificioMarie Curie (C-3), CtraNnal IV-A, Km 396, E14014 Cordoba, Spain
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya str., 117198, Moscow, Russia
| | - Hermenegildo Garcia
- Instituto de Tecnología Química CSIC-UPV, Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, Valencia 46022, Spain
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28
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Liu S, Meng Y, Li H, Yang S. Hierarchical Porous MIL-101(Cr) Solid Acid-Catalyzed Production of Value-Added Acetals from Biomass-Derived Furfural. Polymers (Basel) 2021; 13:polym13203498. [PMID: 34685255 PMCID: PMC8539236 DOI: 10.3390/polym13203498] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/01/2021] [Accepted: 10/07/2021] [Indexed: 11/16/2022] Open
Abstract
Considering economic and environmental impacts, catalytic biomass conversion to valuable compounds has attracted more and more attention. Of particular interest is furfural, a versatile biorefinery platform molecule used as a feedstock for the production of fuels and fine chemicals. In this study, the Cr-based metal-organic frameworks (MOFs) MIL-101 were modified by chlorosulfonic acid, and MIL-101 was changed into a hierarchical MOF structure with smaller particles and lower particle crystallinity by CTAB, which significantly improved the acidic sites of the MOFs. The original and modified MIL-101(Cr) catalysts were characterized by XRD, N2 adsorption-desorption, SEM, TEM, and FT-IR. The effects of different catalysts, reaction temperature, catalyst amount, and alcohol type on the reaction were studied. Under the action of the MOFs catalyst, a new mild route for the condensation of furfural with various alkyl alcohols to the biofuel molecules (acetals) was proposed. The conversion route includes the conversion of furfural up to 91% yield of acetal could be obtained within 1 h solvent-free and in room-temperature reaction conditions. The sulfonic acid-functionalized MIL-101(Cr) is easy to recover and reuse, and can still maintain good catalytic activity after ten runs.
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Affiliation(s)
| | | | - Hu Li
- Correspondence: (H.L.); (S.Y.)
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29
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Qi Z, Li Z, Hu X, Liu S, Ge Y. Encapsulation of Cu 2O Micro/Nanoparticles into Activated Carbon Felt as a Catalyst in Organic Reactions. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhenming Qi
- College of Textiles and Clothing. Yancheng Institute of Technology. Yancheng. Jiangsu 224051. China
| | - Ziyin Li
- College of Textiles and Clothing. Yancheng Institute of Technology. Yancheng. Jiangsu 224051. China
| | - Xiaosai Hu
- College of Textiles and Clothing. Yancheng Institute of Technology. Yancheng. Jiangsu 224051. China
| | - Shiwen Liu
- College of Textiles and Clothing. Yancheng Institute of Technology. Yancheng. Jiangsu 224051. China
| | - Yuanyu Ge
- College of Textiles and Clothing. Yancheng Institute of Technology. Yancheng. Jiangsu 224051. China
- Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai 201620, China
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30
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Li R, Yang X. Mechanistic insights into the α-branched amine formation with pivalic acid assisted C-H bond activation catalysed by Cp*Rh complexes. Dalton Trans 2021; 50:12888-12895. [PMID: 34581328 DOI: 10.1039/d1dt01890f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Density functional theory computations revealed a pivalic acid assisted C-H bond activation mechanism for rhodium catalyzed formation of α-branched amines with C-C and C-N bond couplings. The reaction energies of the [Cp*RhCl2]2 dimer and silver cations indicate that the Cp*RhCl+ cation is the active catalyst. The essential role of pivalic acid is a co-catalyst for the activation of the ortho-C(sp2)-H bond in phenyl(pyrrolidin-1-yl)methanone, while the reaction of NaHCO3 and HCl reduces the overall barrier of the catalytic cycle. In the presence of both pivalic acid and NaHCO3 in the reaction, the C(sp2)-H bond is activated through a concerted metallation deprotonation process, and the C-C bond coupling is the rate-determining step with a total free energy barrier of 23.9 kcal mol-1. Without pivalic acid and NaHCO3, the C(sp2)-H bond can only be activated through a σ-bond metathesis process and the free energy barrier increases to 32.2 kcal mol-1. We also investigated the mechanisms of a side reaction for β-branched amine formation and the reaction without styrene and found that their free energy barriers are 33.4 and 30.5 kcal mol-1, respectively.
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Affiliation(s)
- Rongrong Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, P. R. China. .,University of Chinese Academy of Sciences, Beijing 100049, P. R. China.,Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing 100190, P. R. China
| | - Xinzheng Yang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, P. R. China. .,University of Chinese Academy of Sciences, Beijing 100049, P. R. China.,Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing 100190, P. R. China.,Department of Chemistry, University of Washington, Seattle, WA 98195, USA
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31
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Kocsis M, Ötvös SB, Samu GF, Fogarassy Z, Pécz B, Kukovecz Á, Kónya Z, Sipos P, Pálinkó I, Varga G. Copper-Loaded Layered Bismuth Subcarbonate-Efficient Multifunctional Heterogeneous Catalyst for Concerted C-S/C-N Heterocyclization. ACS APPLIED MATERIALS & INTERFACES 2021; 13:42650-42661. [PMID: 34477369 PMCID: PMC8447192 DOI: 10.1021/acsami.1c09234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
An efficient self-supported
Cu(II)Bi(III) bimetallic catalyst with
a layered structure was designed and developed. By careful characterization
of the as-prepared material, the host structure was identified to
exhibit a Sillen-type bismutite framework, with copper(II) ions being
loaded as guests. The heterogeneous catalyst enabled C–N and
C–S arylations under mild reaction conditions and with high
chemoselectivities, thus furnishing valuable phenothiazines via heterocyclization with wide substrate tolerance. As
corroborated by detailed catalytic studies, the cooperative, bifunctional
catalyst, bearing Lewis acid sites along with copper(II) catalytic
sites, facilitated an intriguing concerted C–N/C–S heterocyclization
mechanism. The heterogeneous nature of the catalytic reactions was
verified experimentally. Importantly, the catalyst was successfully
recycled and reused multiple times, persevering its original structural
order as well as its initial activity.
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Affiliation(s)
- Marianna Kocsis
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, Szeged H-6720, Hungary.,Materials and Solution Structure Research Group, and Interdisciplinary Excellence Centre, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary
| | - Sándor B Ötvös
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, Graz A-8010, Austria
| | - Gergely F Samu
- Department of Physical Chemistry and Materials Science, Interdisciplinary Excellence Centre, University of Szeged, Szeged H-6720, Hungary
| | - Zsolt Fogarassy
- Centre for Energy Research, Institute of Technical Physics and Materials Science, Konkoly, Thege M. út 29-33., Budapest 1121, Hungary
| | - Béla Pécz
- Centre for Energy Research, Institute of Technical Physics and Materials Science, Konkoly, Thege M. út 29-33., Budapest 1121, Hungary
| | - Ákos Kukovecz
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
| | - Zoltán Kónya
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary.,MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, Rerrich Béla tér 1, Szeged H-6720, Hungary
| | - Pál Sipos
- Materials and Solution Structure Research Group, and Interdisciplinary Excellence Centre, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary.,Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, Szeged H-6720, Hungary
| | - István Pálinkó
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, Szeged H-6720, Hungary.,Materials and Solution Structure Research Group, and Interdisciplinary Excellence Centre, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary
| | - Gábor Varga
- Materials and Solution Structure Research Group, and Interdisciplinary Excellence Centre, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary.,Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
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32
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Barcellos AM, Sacramento M, da Costa GP, Perin G, João Lenardão E, Alves D. Organoboron compounds as versatile reagents in the transition metal-catalyzed C–S, C–Se and C–Te bond formation. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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33
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Rufino-Felipe E, Nayely Osorio-Yáñez R, Vera M, Valdés H, González-Sebastián L, Reyes-Sanchez A, Morales-Morales D. Transition-metal complexes bearing chelating NHC Ligands. Catalytic activity in cross coupling reactions via C H activation. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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34
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Zheng Y, Tan Y, Zhou W, Hao X, Liu X, Peng J. Three Polyoxovanadates-Based Organic-Inorganic Hybrids: Structural Variation, Bifunctional Electrocatalytic Activities, and Computational Studies. Inorg Chem 2021; 60:12323-12330. [PMID: 34320316 DOI: 10.1021/acs.inorgchem.1c01535] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Three bimetallic organic-inorganic hybrids based on the [V2O6]2- building unit, [Cu(pty)(V2O6)]·H2O (1), [Cu(pty)(V2O6)] (2), [Cu(tpy)(V2O6)] (3), (pty = 4'-(4″-pyridyl)-2,2':6',2″-terpyridine, tpy = 2,2':6',2″-terpyridine), were synthesized via a one-pot method. Hybrid 1 has a 1D straight chain architecture with [V2O6]2- clusters and Cu-pty complexes; hybrids 2 and 3 possess a 2D sheet structure including 10-membered rings assembled from four [Cu(pty)]2+ motifs and six [V2O6]2- clusters in 2, and two [Cu(tpy)]2+ units and eight [V2O6]2- clusters in 3. Noteworthy, hybrids 1-3 can be employed as bifunctional electrocatalysts for electroreduction of nitrite and electrooxidation of ascorbic acid. Additionally, theoretical calculations including the molecular electrostatic potential and the frontier molecular orbital were performed to estimate the electronic structure of hybrids 1-3. The natural bond orbital analysis was also calculated to interpret the electron charge distribution.
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Affiliation(s)
- Yanping Zheng
- Faculty of Chemistry, Tonghua Normal University, Tonghua, Jilin 134002, People's Republic of China
| | - Yan Tan
- Faculty of Chemistry, Tonghua Normal University, Tonghua, Jilin 134002, People's Republic of China
| | - Wanli Zhou
- Faculty of Chemistry, Tonghua Normal University, Tonghua, Jilin 134002, People's Republic of China
| | - Xiangrong Hao
- Faculty of Chemistry, Tonghua Normal University, Tonghua, Jilin 134002, People's Republic of China
| | - Xuekun Liu
- Faculty of Pharmacy, Tonghua Normal University, Tonghua, Jilin 134002, People's Republic of China
| | - Jun Peng
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, People's Republic of China
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35
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Pd Nanoparticles Embedded Into MOF-808: Synthesis, Structural Characteristics, and Catalyst Properties for the Suzuki–Miyaura Coupling Reaction. Catal Letters 2021. [DOI: 10.1007/s10562-021-03731-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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36
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Valentini F, Piermatti O, Vaccaro L. Metal Nanoparticles as Sustainable Tools for C-N Bond Formation via C-H Activation. Molecules 2021; 26:molecules26134106. [PMID: 34279446 PMCID: PMC8272244 DOI: 10.3390/molecules26134106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022] Open
Abstract
The design of highly active metal nanoparticles to be employed as efficient heterogeneous catalysts is a key tool for the construction of complex organic molecules and the minimization of their environmental costs. The formation of novel C-N bonds via C-H activation is an effective atom-economical strategy to access high value materials in pharmaceuticals, polymers, and natural product production. In this contribution, the literature of the last ten years on the use of metal nanoparticles in the processes involving direct C-N bond formation will be discussed. Where possible, a discussion on the role and influence of the support used for the immobilization and/or the metal chosen is reported. Particular attention was given to the description of the experiments performed to elucidate the active mechanism.
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37
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Lin X, Zhang SN, Xu D, Zhang JJ, Lin YX, Zhai GY, Su H, Xue ZH, Liu X, Antonietti M, Chen JS, Li XH. Electrochemical activation of C-H by electron-deficient W 2C nanocrystals for simultaneous alkoxylation and hydrogen evolution. Nat Commun 2021; 12:3882. [PMID: 34162882 PMCID: PMC8222219 DOI: 10.1038/s41467-021-24203-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/03/2021] [Indexed: 11/17/2022] Open
Abstract
The activation of C-H bonds is a central challenge in organic chemistry and usually a key step for the retro-synthesis of functional natural products due to the high chemical stability of C-H bonds. Electrochemical methods are a powerful alternative for C-H activation, but this approach usually requires high overpotential and homogeneous mediators. Here, we design electron-deficient W2C nanocrystal-based electrodes to boost the heterogeneous activation of C-H bonds under mild conditions via an additive-free, purely heterogeneous electrocatalytic strategy. The electron density of W2C nanocrystals is tuned by constructing Schottky heterojunctions with nitrogen-doped carbon support to facilitate the preadsorption and activation of benzylic C-H bonds of ethylbenzene on the W2C surface, enabling a high turnover frequency (18.8 h-1) at a comparably low work potential (2 V versus SCE). The pronounced electron deficiency of the W2C nanocatalysts substantially facilitates the direct deprotonation process to ensure electrode durability without self-oxidation. The efficient oxidation process also boosts the balancing hydrogen production from as-formed protons on the cathode by a factor of 10 compared to an inert reference electrode. The whole process meets the requirements of atomic economy and electric energy utilization in terms of sustainable chemical synthesis.
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Affiliation(s)
- Xiu Lin
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Shi-Nan Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Dong Xu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Jun-Jun Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Yun-Xiao Lin
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Guang-Yao Zhai
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Hui Su
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Zhong-Hua Xue
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xi Liu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Markus Antonietti
- Department of Colloid Chemistry, Max-Planck Institute of Colloids and Interfaces, Wissenschaftspark Golm, Potsdam, Germany
| | - Jie-Sheng Chen
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xin-Hao Li
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China.
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38
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α,β-Enone Borylation by Bis(Pinacolato)Diboron Catalyzed by Cu 3(BTC) 2 Using Cesium Carbonate as a Base. NANOMATERIALS 2021; 11:nano11061396. [PMID: 34070463 PMCID: PMC8228117 DOI: 10.3390/nano11061396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/17/2021] [Accepted: 05/20/2021] [Indexed: 11/16/2022]
Abstract
Cu3(BTC)2 (BTC: 1,3,5-benzenetricarboxylate) as a heterogeneous catalyst in the presence of cesium carbonate as a base is reported for the borylation of α,β-conjugated enones by bis(pinacolato)diboron (B2pin2). According to the hot-filtration test, Cu3(BTC)2 is acting as a heterogeneous catalyst. Further, Cu3(BTC)2 exhibits a wide substrate scope and can be reused in consecutive runs, maintaining a crystal structure as evidenced by powder X-ray diffraction (XRD). A suitable mechanism is also proposed for this transformation using Cu3(BTC)2 as catalyst.
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39
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Luo J, Fu Q. Aldehyde‐Directed C(
sp
2
)−H Functionalization under Transition‐Metal Catalysis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100325] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Junfei Luo
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province School of Materials Science and Chemical Engineering Ningbo University Ningbo 315211 P. R. China
| | - Qiang Fu
- School of Pharmacy Southwest Medical University Luzhou 610041 P. R. China
- Department of Pharmacy The Affiliated Hospital of Southwest Medical University Luzhou 646000 P. R. China
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40
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Sun X, Li S, Cao J, Wang Y, Yang W, Zhang L, Liu Y, Qiu J, Tao S. A Hierarchical-Structured Impeller with Engineered Pd Nanoparticles Catalyzing Suzuki Coupling Reactions for High-Purity Biphenyl. ACS APPLIED MATERIALS & INTERFACES 2021; 13:17429-17438. [PMID: 33827215 DOI: 10.1021/acsami.0c22284] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Suzuki cross-coupling reactions catalyzed by palladium are authoritative protocols in fine-chemical synthesis. Mass transfer and catalyst activity are both significant factors affecting the reaction efficiency in heterogeneous reactions. Although the holistic catalysts hold great promise in heterogeneous reactions due to the enhanced mass transport and convenient recycling, the unsatisfied catalytic activity has impeded further large-scale applications. In addition, another pronounced barrier is the product separation in the intricate system. Here, the catalytic production and separation of biphenyl (purity of 99.7%) were achieved by integrating the Suzuki cross-coupling reactions and the crystallization separation for the first time. A hierarchical-structured impeller with Pd nanoparticles (NPs) loaded on the Ni(OH)2 nanosheets was prepared to catalyze the Suzuki reactions for bromobenzene, which exhibits a high turnover frequency (TOF) value of 25,976 h-1 and a yield of 99.5%. The X-ray absorption fine structure (XAFS) analysis has unveiled that the electron transfer between the Pd NPs and Ni(OH)2 accounts for the greatly enhanced catalytic activity. The findings inspire new insights toward rational engineering of highly efficient holistic catalysts for Suzuki reaction, and the innovative integrated technology offers an avenue for the separation and collection of products.
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Affiliation(s)
- Xueyan Sun
- Department of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Shaofeng Li
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jinzhe Cao
- Department of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yuchao Wang
- Department of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Wenbo Yang
- Department of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Lijing Zhang
- Department of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yijin Liu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Jieshan Qiu
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Shengyang Tao
- Department of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
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41
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Metal-Organic Frameworks as Versatile Heterogeneous Solid Catalysts for Henry Reactions. Molecules 2021; 26:molecules26051445. [PMID: 33800017 PMCID: PMC7962073 DOI: 10.3390/molecules26051445] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/03/2021] [Accepted: 03/03/2021] [Indexed: 12/14/2022] Open
Abstract
Metal–organic frameworks (MOFs) have become one of the versatile solid materials used for a wide range of applications, such as gas storage, gas separation, proton conductivity, sensors and catalysis. Among these fields, one of the more well-studied areas is the use of MOFs as heterogeneous catalysts for a broad range of organic reactions. In the present review, the employment of MOFs as solid catalysts for the Henry reaction is discussed, and the available literature data from the last decade are grouped. The review is organized with a brief introduction of the importance of Henry reactions and structural properties of MOFs that are suitable for catalysis. The second part of the review discusses the use of MOFs as solid catalysts for the Henry reaction involving metal nodes as active sites, while the third section provides data utilizing basic sites (primary amine, secondary amine, amides and urea-donating sites). While commenting on the catalytic results in these two sections, the advantage of MOFs over other solid catalysts is compared in terms of activity by providing turnover number (TON) values and the structural stability of MOFs during the course of the reaction. The final section provides our views on further directions in this field.
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42
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Zhang X, Zhang B, Li X. Rhodium-Catalyzed Redox-Neutral Olefination of Aryldiazenes with Acrylate Esters via C-H Activation and Transfer Hydrogenation. Org Lett 2021; 23:1687-1691. [PMID: 33591194 DOI: 10.1021/acs.orglett.1c00107] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Rh(III)-catalyzed redox-neutral C-H olefination of aryldiazenecarboxylates has been realized using arylate esters as the olefinating reagents. This reaction proceeds under mild and redox-neutral conditions, resulting in integration of C-H activation and transfer hydrogenation. The chemoselectivity complements that of previously reported rhodium-catalyzed coupling of the same substrates.
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Affiliation(s)
- Xiaofei Zhang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Bin Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an 710062, China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an 710062, China
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43
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Bennedsen NR, Christensen DB, Mortensen RL, Wang B, Wang R, Kramer S, Kegnæs S. Heterogeneous Formic Acid Production by Hydrogenation of CO
2
Catalyzed by Ir‐bpy Embedded in Polyphenylene Porous Organic Polymers. ChemCatChem 2021. [DOI: 10.1002/cctc.202100002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Niklas R. Bennedsen
- Department of Chemistry Technical University of Denmark 2800 Kgs. Lyngby Denmark
| | - David B. Christensen
- Department of Chemistry Technical University of Denmark 2800 Kgs. Lyngby Denmark
| | - Rasmus L. Mortensen
- Department of Chemistry Technical University of Denmark 2800 Kgs. Lyngby Denmark
| | - Bolun Wang
- Department of Chemical Engineering University College London Torrington Place WC1E London UK
| | - Ryan Wang
- Department of Chemical Engineering University College London Torrington Place WC1E London UK
| | - Søren Kramer
- Department of Chemistry Technical University of Denmark 2800 Kgs. Lyngby Denmark
| | - Søren Kegnæs
- Department of Chemistry Technical University of Denmark 2800 Kgs. Lyngby Denmark
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44
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Gou Q, Tan Q, Chen Q, Tan J, Wang K, Xie J. Copper-Catalyzed Regioselective C(sp 3)—H Sulfonimidization of Aliphatic Cyclic Tertiary Amines. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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45
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Shi Y, Wu H, Huang G. Rhodium( i)/bisoxazolinephosphine-catalyzed regio- and enantioselective amination of allylic carbonates: a computational study. Org Chem Front 2021. [DOI: 10.1039/d1qo00370d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
DFT calculations were performed to investigate the rhodium(i)/bisoxazolinephosphine-catalyzed regio- and enantioselective amination of allylic carbonates.
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Affiliation(s)
- Yu Shi
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Hongli Wu
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Genping Huang
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
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46
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Cheng H, Zang C, Bian F, Jiang Y, Yang L, Dong F, Jiang H. Boosting free radical type photocatalysis over Pd/Fe-MOFs by coordination structure engineering. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00972a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The development of novel heterogeneous photocatalytic systems, along with a deep understanding of the relationship between the catalytic center chemical environment and the catalytic performance, is of great significance.
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Affiliation(s)
- Hongmei Cheng
- Key Laboratory of Catalysis Science and Technology of Chongqing Education Commission
- Chongqing Key Laboratory of Catalysis and Functional Organic Molecules
- Chongqing Technology and Business University
- Chongqing
- P. R. China
| | - Cuicui Zang
- Key Laboratory of Catalysis Science and Technology of Chongqing Education Commission
- Chongqing Key Laboratory of Catalysis and Functional Organic Molecules
- Chongqing Technology and Business University
- Chongqing
- P. R. China
| | - Fengxia Bian
- Key Laboratory of Catalysis Science and Technology of Chongqing Education Commission
- Chongqing Key Laboratory of Catalysis and Functional Organic Molecules
- Chongqing Technology and Business University
- Chongqing
- P. R. China
| | - Yanke Jiang
- Key Laboratory of Catalysis Science and Technology of Chongqing Education Commission
- Chongqing Key Laboratory of Catalysis and Functional Organic Molecules
- Chongqing Technology and Business University
- Chongqing
- P. R. China
| | - Lin Yang
- Key Laboratory of Catalysis Science and Technology of Chongqing Education Commission
- Chongqing Key Laboratory of Catalysis and Functional Organic Molecules
- Chongqing Technology and Business University
- Chongqing
- P. R. China
| | - Fan Dong
- Research Center for Environmental and Energy Catalysis
- Institute of Fundamental and Frontier Sciences
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
| | - Heyan Jiang
- Key Laboratory of Catalysis Science and Technology of Chongqing Education Commission
- Chongqing Key Laboratory of Catalysis and Functional Organic Molecules
- Chongqing Technology and Business University
- Chongqing
- P. R. China
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47
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Gou Q, Yuan B, Ran M, Ren J, Zhang MZ, Tan X, Yuan T, Zhang X. C(sp 3)-H Monoarylation of Methanol Enabled by a Bidentate Auxiliary. Org Lett 2020; 23:118-123. [PMID: 33351637 DOI: 10.1021/acs.orglett.0c03786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
With the assistance of a practical directing group (COAQ), the first catalytic protocol for the palladium-catalyzed C(sp3)-H monoarylation of methanol has been developed, offering an invaluable synthesis means to establish extensive derivatives of crucial arylmethanol functional fragments. Furthermore, the gram-scale reaction, broad substrate scope, excellent functional group compatibility, and even the practical synthesis of medicines further demonstrate the usefulness of this strategy.
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Affiliation(s)
- Quan Gou
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100 China
| | - Binfang Yuan
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100 China
| | - Man Ran
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100 China
| | - Jian Ren
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, Yichun University, Yichun 336000, China
| | - Ming-Zhong Zhang
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100 China
| | - Xiaoping Tan
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100 China
| | - Tengrui Yuan
- Department of Organic and Macromolecular Chemistry, Ghent University, 9000 Gent, Belgium
| | - Xing Zhang
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100 China
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48
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Van Velthoven N, Wang Y, Van Hees H, Henrion M, Bugaev AL, Gracy G, Amro K, Soldatov AV, Alauzun JG, Mutin PH, De Vos DE. Heterogeneous Single-Site Catalysts for C-H Activation Reactions: Pd(II)-Loaded S,O-Functionalized Metal Oxide-Bisphosphonates. ACS APPLIED MATERIALS & INTERFACES 2020; 12:47457-47466. [PMID: 32970411 DOI: 10.1021/acsami.0c12325] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Heterogeneous single-site catalysts contain spatially isolated, well-defined active sites. This allows not only their easy recovery by solid-liquid separation but also the detailed active site design similar to homogeneous catalysts. Here, heterogeneous Pd(II) single-site catalysts were assembled, based on mesoporous metal oxide-bisphosphonate materials as supports. This new family of hybrid organic-inorganic materials with tunable porosity was further functionalized with thioether ligands containing S,O-binding sites that enhance the activity of Pd(II) for C-H activation reactions. The structures of the resulting Pd(II) single-site catalysts were carefully analyzed via solid-state NMR spectroscopy, via texture analysis by N2 physisorption, infrared spectroscopy, and transmission electron microscopy. Furthermore, the immediate environment of the isolated Pd(II) active sites was studied with X-ray absorption spectroscopy. A clear relationship between the thioether ligand surface density and catalyst activity could be established. Significantly higher yields were obtained using highly porous metal oxide-bisphosphonate materials as supports compared to materials with lower porosities, such as conventional metal oxides, indicating that the high surface area facilitates the presence of isolated, well-accessible S,O-supported Pd(II) active sites. A wide scope of model substrates, including industrially relevant arenes, can be converted with high yields by the optimal heterogeneous Pd catalyst.
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Affiliation(s)
- Niels Van Velthoven
- Centre For Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, P.O. Box 2461, 3001 Leuven, Belgium
| | - Yanhui Wang
- Institut Charles Gerhardt Montpellier, UMR5253 CNRS-UM-ENSCM, Université de Montpellier, 34095 Montpellier, France
| | - Hannah Van Hees
- Centre For Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, P.O. Box 2461, 3001 Leuven, Belgium
| | - Mickaël Henrion
- Centre For Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, P.O. Box 2461, 3001 Leuven, Belgium
| | - Aram L Bugaev
- The Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, 344090 Rostov-on-Don, Russia
| | - Guillaume Gracy
- SiKÉMIA, Place Eugène Bataillon, cc1701, 34095 Montpellier, France
| | - Kassem Amro
- SiKÉMIA, Place Eugène Bataillon, cc1701, 34095 Montpellier, France
| | - Alexander V Soldatov
- The Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, 344090 Rostov-on-Don, Russia
| | - Johan G Alauzun
- Institut Charles Gerhardt Montpellier, UMR5253 CNRS-UM-ENSCM, Université de Montpellier, 34095 Montpellier, France
| | - P Hubert Mutin
- Institut Charles Gerhardt Montpellier, UMR5253 CNRS-UM-ENSCM, Université de Montpellier, 34095 Montpellier, France
| | - Dirk E De Vos
- Centre For Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, P.O. Box 2461, 3001 Leuven, Belgium
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49
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Yan M, Ma R, Chen R, Wang L, Wang Z, Ma Y. Synthesis of 1,2-dihydro-1,3,5-triazine derivatives via Cu(II)-catalyzed C(sp 3)-H activation of N, N-dimethylethanolamine with amidines. Chem Commun (Camb) 2020; 56:10946-10949. [PMID: 32940285 DOI: 10.1039/d0cc03820b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
1,2-Dihydro-1,3,5-triazines and symmetrical 1,3,5-triazines were obtained in up to 81% yields from amidines and N,N-dimethylethanolamine catalyzed by CuCl2. The reaction involves three C-N bond formations during the oxidative annulation process and the mechanism was proposed. This efficient synthesis of 1,2-dihydro-1,3,5-triazines was developed for the first time.
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Affiliation(s)
- Min Yan
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, 1139 Shifu Avenue, Taizhou, 318000, P. R. China. and School of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, P. R. China
| | - Renchao Ma
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, 1139 Shifu Avenue, Taizhou, 318000, P. R. China.
| | - Rener Chen
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, 1139 Shifu Avenue, Taizhou, 318000, P. R. China.
| | - Lei Wang
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, 1139 Shifu Avenue, Taizhou, 318000, P. R. China.
| | - Zhiming Wang
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, 1139 Shifu Avenue, Taizhou, 318000, P. R. China.
| | - Yongmin Ma
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, 1139 Shifu Avenue, Taizhou, 318000, P. R. China. and School of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, P. R. China
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50
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Mudsainiyan RK, Chander K. Structural transformation from 1D to 3D in [K(µ5-L1).H2O]n (L1 = 2,4-dinitrobenzoate) by nitro group coordination: Comparison with theoretical and Hirshfeld surface calculations. Supramol Chem 2020. [DOI: 10.1080/10610278.2020.1817454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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