1
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Das P, Thakur R. NFSI mediated C3-ether oxidation of glycals for the synthesis of hex-3-enuloses. Carbohydr Res 2024; 536:109032. [PMID: 38219634 DOI: 10.1016/j.carres.2024.109032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/16/2024]
Abstract
Hex-3-enuloses constitute a vital carbohydrate synthetic intermediate that provide access to wide range of chiral molecules through diverse derivatizations. Herein we report synthesis of these fascinating scaffolds by oxidation of C3-ether protections on glycals in presence of N-fluorobenzenesulfonimide (NFSI) under Cu(I) catalysed conditions. Benzyl, methyl and silyl ethers have been efficiently oxidized to the carbonyl group. The oxidation has been found to be highly regioselective where an array of protecting groups were tolerant to the reaction conditions. Pyranosyl glycals from various commercially available sugars have been studied in this work to evaluate the broad substrate scope.
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Affiliation(s)
- Pradip Das
- Department of Chemistry, National Institute of Technology Patna, Patna, 800005, Bihar, India
| | - Rima Thakur
- Department of Chemistry, National Institute of Technology Patna, Patna, 800005, Bihar, India.
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2
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Lutz MR, Roediger S, Rivero-Crespo MA, Morandi B. Mechanistic Investigation of the Rhodium-Catalyzed Transfer Hydroarylation Reaction Involving Reversible C-C Bond Activation. J Am Chem Soc 2023; 145:26657-26666. [PMID: 38032811 PMCID: PMC10722515 DOI: 10.1021/jacs.3c07780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/22/2023] [Accepted: 11/01/2023] [Indexed: 12/02/2023]
Abstract
Carbon-carbon (C-C) bonds are ubiquitous but are among the least reactive bonds in organic chemistry. Recently, catalytic approaches to activate C-C bonds by transition metals have demonstrated the synthetic potential of directly reorganizing the skeleton of small molecules. However, these approaches are usually restricted to strained molecules or rely on directing groups, limiting their broader impact. We report a detailed mechanistic study of a rare example of catalytic C-C bond cleavage of unstrained alcohols that enables reversible ketone transfer hydroarylation under Rh-catalysis. Combined insight from kinetic analysis, in situ nuclear magnetic resonance (NMR) monitoring, and density functional theory (DFT) calculations supports a symmetric catalytic cycle, including a key reversible β-carbon elimination event. In addition, we provide evidence regarding the turnover-limiting step, the catalyst resting state, and the role of the sterically encumbered NHC ligand. The study further led to an improved catalytic system with the discovery of two air-stable precatalysts that showed higher activity for the transformation in comparison to the original conditions.
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Affiliation(s)
| | - Sven Roediger
- ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | | | - Bill Morandi
- ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
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3
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Cui SQ, Zhang DB, Wei ZL, Liao WW. Construction of Functionalized α-Imino Ketones via Pd-Catalyzed C-H Addition to Nitriles/Aerobic Oxidation Sequences. J Org Chem 2023; 88:16018-16023. [PMID: 37930958 DOI: 10.1021/acs.joc.3c01934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Pd(II)-catalyzed addition of sp2 C-H to nitrile/aerobic oxidation sequences for the preparation of functionalized α-imino ketones is described in which readily available heteroarenes and O-acyl cyanohydrins were employed. Various functionalized targeted molecules can be prepared in good yields with high atom and step economy. Moreover, a broad substrate scope and the ready manipulation and availability of the reaction partners enable this protocol to be appealing to explore the chemical space of the construction of functionalized α-imino ketones with high efficiency.
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Affiliation(s)
- Shu-Qiang Cui
- Department of Organic Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P R China
| | - Dian-Bo Zhang
- Department of Organic Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P R China
| | - Zhong-Lin Wei
- Department of Organic Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P R China
| | - Wei-Wei Liao
- Department of Organic Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P R China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P R China
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4
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Li Y, Li X, An Z, Chu Y, Wang X. A Metal-Organic Complex Constructed from Co(II), Azo-amide-pyridyl and Benzenetricarboxylate Mixed Ligands: Efficient Catalysis for Selective Oxidation of Benzyl Alcohols to Benzyl Acids. Chem Asian J 2023:e202300814. [PMID: 37881156 DOI: 10.1002/asia.202300814] [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: 09/19/2023] [Revised: 10/25/2023] [Accepted: 10/25/2023] [Indexed: 10/27/2023]
Abstract
By using one-step hydrothermal synthesis, a novel metal-organic complex containing Co(II), the azo-amide-pyridyl ligand (E)-4,4'-(diazene-1,2-diyl)bis(N-(pyridin-3-yl)benzamide (DABA) and benzenetricarboxylate was synthesized, with a molecular formula of [Co2 (DABA)0.5 (MTC)(μ3 -OH)(H2 O)2 ] ⋅ 2H2 O (namely 1, DABA=(E)-4,4'-(diazene-1,2-diyl)bis(N-(pyridin-3-yl)benzamide, H3 MTC=1,2,4-benzenetricarboxylic acid) which was characterized by single crystal X-ray diffraction, PXRD, IR spectroscopy, TGA, and XPS. In the structure of complex 1, tetranuclear Co(II) clusters were connected by MTC to form a 2D bilayer structure and further constructed a 3D structure with DABA ligand. Complex 1 was used as an efficient heterogeneous catalyst for the oxidation of benzyl alcohol, and the conversion rate of benzyl alcohol reached 98.6 % and the selectivity of benzoic acid reached 94.8 %. In addition, complex 1 can be reused 5 times without significant loss of activity. The oxidation of benzyl alcohol with different substituents also showed satisfactory conversion and selectivity, indicating that complex 1 had good catalytic performance.
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Affiliation(s)
- Yuyao Li
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning, 121013, P. R. China
| | - Xiaohui Li
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning, 121013, P. R. China
| | - Zhixuan An
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning, 121013, P. R. China
| | - Yang Chu
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning, 121013, P. R. China
| | - Xiuli Wang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning, 121013, P. R. China
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5
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Bruns DL, Stahl SS. Thermodynamic-Kinetic Comparison of Palladium(II)-Mediated Alcohol and Hydroquinone Oxidation. Organometallics 2022; 41:3161-3166. [PMID: 36776986 PMCID: PMC9916251 DOI: 10.1021/acs.organomet.2c00017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Palladium(II) catalysts promote oxidative dehydrogenation and dehydrogenative coupling of many organic molecules. Oxidations of alcohols to aldehydes or ketones are prominent examples. Hydroquinone (H2Q) oxidation to benzoquinone (BQ) is conceptually related to alcohol oxidation, but it is significantly more challenging thermodynamically. The BQ/H2Q redox potential is sufficiently high that BQ is often used as an oxidant in Pd-catalyzed oxidation reactions. A recent report (J. Am Chem. Soc. 2020, 142, 19678-19688) showed that certain ancillary ligands can raise the PdII/0 redox potential sufficiently to reverse this reactivity, enabling (L)PdII(OAc)2 to oxidize hydroquinone to benzoquinone. Here, we investigate the oxidation of tert-butylhydroquinone ( t BuH2Q) and 4-fluorobenzyl alcohol (4FBnOH), mediated by (bc)Pd(OAc)2 (bc = bathocuproine). Although alcohol oxidation is thermodynamically favored over H2Q oxidation by more than 400 mV, the oxidation of t BuH2Q proceeds several orders of magnitude faster than 4FBnOH oxidation. Kinetic and mechanistic studies reveal that these reactions feature different rate-limiting steps. Alcohol oxidation proceeds via rate-limiting β-hydride elimination from a PdII-alkoxide intermediate, while H2Q oxidation features rate-limiting isomerization from an O-to-C-bound PdII-hydroquinonate species. The enhanced rate of H2Q oxidation reflects the kinetic facility of O─H relative to C─H bond cleavage.
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Affiliation(s)
- David L Bruns
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue Madison, WI, 53706, United States
| | - Shannon S Stahl
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue Madison, WI, 53706, United States
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6
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Michałek S, Gurba-Bryśkiewicz L, Maruszak W, Zagozda M, Maj AM, Ochal Z, Dubiel K, Wieczorek M. The design of experiments (DoE) in optimization of an aerobic flow Pd-catalyzed oxidation of alcohol towards an important aldehyde precursor in the synthesis of phosphatidylinositide 3-kinase inhibitor (CPL302415). RSC Adv 2022; 12:33605-33611. [PMID: 36505705 PMCID: PMC9682622 DOI: 10.1039/d2ra07003k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 11/11/2022] [Indexed: 11/24/2022] Open
Abstract
Herein, we describe the development of a green, scalable flow Pd-catalyzed aerobic oxidation for the key step in the synthesis of CPL302415, which is a new PI3Kδ inhibitor. Applying this environmental-friendly, sustainable catalytic oxidation we significantly increased product yield (up to 84%) and by eliminating of workup step, we improved the waste index and E factor (up to 0.13) in comparison with the stoichiometric synthesis. The process was optimized by using the DoE approach.
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Affiliation(s)
- Stanisław Michałek
- Celon Pharma S.A.Ul. Marymoncka 1505-152 Kazuń NowyPoland,Faculty of Chemistry, Warsaw University of TechnologyUl. Noakowskiego 300-664 WarsawPoland
| | | | | | - Marcin Zagozda
- Celon Pharma S.A.Ul. Marymoncka 1505-152 Kazuń NowyPoland
| | - Anna M. Maj
- Celon Pharma S.A.Ul. Marymoncka 1505-152 Kazuń NowyPoland
| | - Zbigniew Ochal
- Faculty of Chemistry, Warsaw University of TechnologyUl. Noakowskiego 300-664 WarsawPoland
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7
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Hu J, Zhu Y, Gao H, Zhang F, Zhang Z. Rapid Catalysis for Aerobic Oxidation of Alcohols Based on Nitroxyl-Radical-Free Copper(II) under Ambient Conditions. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiaming Hu
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yongkang Zhu
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hu Gao
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Feng Zhang
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Zhibing Zhang
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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8
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Venezia B, Morris DC, Gavriilidis A. Taylor‐vortex membrane reactor for continuous gas‐liquid reactions. AIChE J 2022. [DOI: 10.1002/aic.17880] [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)
- Baldassarre Venezia
- Department of Chemical Engineering University College London, Torrington Place London UK
| | - David C. Morris
- Autichem Ltd, Unit 4, Gatewarth Industrial Estate Barnard Street Warrington WA5 1DD
| | - Asterios Gavriilidis
- Department of Chemical Engineering University College London, Torrington Place London UK
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9
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Cheedarala RK, Chidambaram RR, Siva A, Song JI. An aerobic oxidation of alcohols into carbonyl synthons using bipyridyl-cinchona based palladium catalyst. RSC Adv 2021; 11:32942-32954. [PMID: 35493605 PMCID: PMC9042156 DOI: 10.1039/d1ra05855j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 09/13/2021] [Indexed: 12/04/2022] Open
Abstract
We have reported an aerobic oxidation of primary and secondary alcohols to respective aldehydes and ketones using a bipyridyl-cinchona alkaloid based palladium catalytic system (PdAc-5) using oxygen at moderate pressure. The PdAc-5 catalyst was analysed using SEM, EDAX, and XPS analysis. The above catalytic system is used in experiments for different oxidation systems which include different solvents, additives, and bases which are cheap, robust, non-toxic, and commercially available on the industrial bench. The obtained products are quite appreciable in both yield and selectivity (70-85%). In addition, numerous important studies, such as comparisons with various commercial catalysts, solvent systems, mixture of solvents, and catalyst mole%, were conducted using PdAc-5. The synthetic strategy of oxidation of alcohol into carbonyl compounds was well established and all the products were analysed using 1H NMR, 13CNMR and GC-mass analyses.
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Affiliation(s)
- Ravi Kumar Cheedarala
- Research Institute of Mechatronics, Department of Mechanical Engineering, Changwon National University Changwon City Republic of Korea
| | - Ramasamy R Chidambaram
- Supramolecular and Organometallic Chemistry Lab, Department of Inorganic Chemistry, School of Chemistry, Madurai Kamaraj University Madurai 625021 Tamil Nadu India
| | - Ayyanar Siva
- Supramolecular and Organometallic Chemistry Lab, Department of Inorganic Chemistry, School of Chemistry, Madurai Kamaraj University Madurai 625021 Tamil Nadu India
| | - Jung Il Song
- Research Institute of Mechatronics, Department of Mechanical Engineering, Changwon National University Changwon City Republic of Korea
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10
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Hikawa H, Nakayama T, Takahashi M, Kikkawa S, Azumaya I. Direct Use of Benzylic Alcohols for Multicomponent Synthesis of 2‐Aryl Quinazolinones Utilizing the π‐Benzylpalladium(II) System in Water. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100535] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hidemasa Hikawa
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Taku Nakayama
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Makiko Takahashi
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Shoko Kikkawa
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Isao Azumaya
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
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11
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Wedi P, Farizyan M, Bergander K, Mück-Lichtenfeld C, van Gemmeren M. Mechanism of the Arene-Limited Nondirected C-H Activation of Arenes with Palladium*. Angew Chem Int Ed Engl 2021; 60:15641-15649. [PMID: 33998116 PMCID: PMC8361776 DOI: 10.1002/anie.202105092] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/10/2021] [Indexed: 01/11/2023]
Abstract
Recently palladium catalysts have been discovered that enable the directing-group-free C-H activation of arenes without requiring an excess of the arene substrate, thereby enabling methods for the late-stage modification of complex organic molecules. The key to success has been the use of two complementary ligands, an N-acyl amino acid and an N-heterocycle. Detailed experimental and computational mechanistic studies on the dual-ligand-enabled C-H activation of arenes have led us to identify the catalytically active species and a transition state model that explains the exceptional activity and selectivity of these catalysts. These findings are expected to be highly useful for further method development using this powerful class of catalysts.
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Affiliation(s)
- Philipp Wedi
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Correnstrasse 36, 48149, Münster, Germany
| | - Mirxan Farizyan
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Correnstrasse 36, 48149, Münster, Germany
| | - Klaus Bergander
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Correnstrasse 36, 48149, Münster, Germany
| | - Christian Mück-Lichtenfeld
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Correnstrasse 36, 48149, Münster, Germany
| | - Manuel van Gemmeren
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Correnstrasse 36, 48149, Münster, Germany
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12
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Wedi P, Farizyan M, Bergander K, Mück‐Lichtenfeld C, Gemmeren M. Mechanismus der Aren‐limitierten, nicht‐dirigierten C‐H‐Aktivierung von Arenen mit Palladium**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105092] [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]
Affiliation(s)
- Philipp Wedi
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Correnstraße 36 48149 Münster Deutschland
| | - Mirxan Farizyan
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Correnstraße 36 48149 Münster Deutschland
| | - Klaus Bergander
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Correnstraße 36 48149 Münster Deutschland
| | - Christian Mück‐Lichtenfeld
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Correnstraße 36 48149 Münster Deutschland
| | - Manuel Gemmeren
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Correnstraße 36 48149 Münster Deutschland
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13
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Nakayama T, Hikawa H, Kikkawa S, Azumaya I. Water-promoted dehydrative coupling of 2-aminopyridines in heptane via a borrowing hydrogen strategy. RSC Adv 2021; 11:23144-23150. [PMID: 35480450 PMCID: PMC9034306 DOI: 10.1039/d1ra04118e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 06/23/2021] [Indexed: 11/23/2022] Open
Abstract
A synthetic method for dehydrative N-benzylation promoted by water molecules in heptane using a π-benzylpalladium system has been developed. The presence of water significantly accelerates carbon–nitrogen bond formation, which is accomplished in an atom-economical process to afford the corresponding N-monobenzylated products. A crossover experiment afforded H/D scrambled products, which is consistent with a borrowing hydrogen mechanism. Kinetic isotope effect measurements revealed that benzylic carbon–hydrogen bond cleavage was the rate-determining step. We describe a novel strategy for the water-promoted dehydrative coupling reaction in heptane, which offers a sustainable direct amination of alcohols.![]()
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Affiliation(s)
- Taku Nakayama
- Faculty of Pharmaceutical Sciences, Toho University 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Hidemasa Hikawa
- Faculty of Pharmaceutical Sciences, Toho University 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Shoko Kikkawa
- Faculty of Pharmaceutical Sciences, Toho University 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Isao Azumaya
- Faculty of Pharmaceutical Sciences, Toho University 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
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14
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Tiburcio E, Greco R, Mon M, Ballesteros-Soberanas J, Ferrando-Soria J, López-Haro M, Hernández-Garrido JC, Oliver-Meseguer J, Marini C, Boronat M, Armentano D, Leyva-Pérez A, Pardo E. Soluble/MOF-Supported Palladium Single Atoms Catalyze the Ligand-, Additive-, and Solvent-Free Aerobic Oxidation of Benzyl Alcohols to Benzoic Acids. J Am Chem Soc 2021; 143:2581-2592. [PMID: 33535758 DOI: 10.1021/jacs.0c12367] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Metal single-atom catalysts (SACs) promise great rewards in terms of metal atom efficiency. However, the requirement of particular conditions and supports for their synthesis, together with the need of solvents and additives for catalytic implementation, often precludes their use under industrially viable conditions. Here, we show that palladium single atoms are spontaneously formed after dissolving tiny amounts of palladium salts in neat benzyl alcohols, to catalyze their direct aerobic oxidation to benzoic acids without ligands, additives, or solvents. With this result in hand, the gram-scale preparation and stabilization of Pd SACs within the functional channels of a novel methyl-cysteine-based metal-organic framework (MOF) was accomplished, to give a robust and crystalline solid catalyst fully characterized with the help of single-crystal X-ray diffraction (SCXRD). These results illustrate the advantages of metal speciation in ligand-free homogeneous organic reactions and the translation into solid catalysts for potential industrial implementation.
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Affiliation(s)
- Estefanía Tiburcio
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, 46980 Paterna, Valencia, Spain
| | - Rossella Greco
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Marta Mon
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Jordi Ballesteros-Soberanas
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Jesús Ferrando-Soria
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, 46980 Paterna, Valencia, Spain
| | - Miguel López-Haro
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Universitario de Puerto Real, 11510 Puerto Real, Cádiz, Spain.,Instituto Universitario de Investigación en Microscopía Electrónica y Materiales (IMEYMAT), Facultad de Ciencias, Universidad de Cádiz, Campus Universitario de Puerto Real, 11510 Puerto Real, Cádiz, Spain
| | - Juan Carlos Hernández-Garrido
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Universitario de Puerto Real, 11510 Puerto Real, Cádiz, Spain.,Instituto Universitario de Investigación en Microscopía Electrónica y Materiales (IMEYMAT), Facultad de Ciencias, Universidad de Cádiz, Campus Universitario de Puerto Real, 11510 Puerto Real, Cádiz, Spain
| | - Judit Oliver-Meseguer
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Carlo Marini
- CELLS-ALBA Synchrotron, Cerdanyola del Vallès, E-08290 Barcelona, Spain
| | - Mercedes Boronat
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Donatella Armentano
- Dipartimento di Chimica e Tecnologie Chimiche (CTC), Università della Calabria, Rende 87036, Cosenza, Italy
| | - Antonio Leyva-Pérez
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Emilio Pardo
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, 46980 Paterna, Valencia, Spain
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15
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Zeng M, Lou C, Xue J, Jiang H, Li K, Chen Z, Fu S, Yin G. Palladium (II)‐catalyzed homogeneous alcohol oxidations: Disclosing the crucial contribution of palladium nanoparticles in catalysis. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Miao Zeng
- School of Chemistry and Chemical Engineering, Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure Huazhong University of Science and Technology Wuhan China
| | - Chenlin Lou
- School of Chemistry and Chemical Engineering, Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure Huazhong University of Science and Technology Wuhan China
| | - Jing‐Wen Xue
- School of Chemistry and Chemical Engineering, Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure Huazhong University of Science and Technology Wuhan China
| | - Hongwu Jiang
- School of Chemistry and Chemical Engineering, Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure Huazhong University of Science and Technology Wuhan China
| | - Kaiwen Li
- School of Chemistry and Chemical Engineering, Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure Huazhong University of Science and Technology Wuhan China
| | - Zhuqi Chen
- School of Chemistry and Chemical Engineering, Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure Huazhong University of Science and Technology Wuhan China
| | - Shitao Fu
- School of Chemistry and Chemical Engineering, Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure Huazhong University of Science and Technology Wuhan China
| | - Guochuan Yin
- School of Chemistry and Chemical Engineering, Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure Huazhong University of Science and Technology Wuhan China
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16
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Elinburg JK, Carter SL, Nelson JJM, Fraser DG, Crockett MP, Beeler AB, Nordlander E, Rheingold AL, Doerrer LH. Reversible PCET and Ambient Catalytic Oxidative Alcohol Dehydrogenation by {V=O} Perfluoropinacolate Complexes. Inorg Chem 2020; 59:16500-16513. [PMID: 33119300 DOI: 10.1021/acs.inorgchem.0c02367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new air-stable catalyst for the oxidative dehydrogenation of benzylic alcohols under ambient conditions has been developed. The synthesis and characterization of this compound and the related monomeric and dimeric V(IV)- and V(V)-pinF (pinF = perfluoropinacolate) complexes are reported herein. Monomeric V(IV) complex (Me4N)2[V(O)(pinF)2] (1) and dimeric (μ-O)2-bridged V(V) complex (Me4N)2[V2(O)2(μ-O)2(pinF)2] (3a) are prepared in water under ambient conditions. Monomeric V(V) complex (Me4N)[V(O)(pinF)2] (2) may be generated via chemical oxidation of 1 under an inert atmosphere, but dimerizes to 3a upon exposure to air. Complexes 1 and 2 display a perfectly reversible VIV/V couple at 20 mV (vs Ag/AgNO3), whereas a quasi-reversible VIV/V couple at -865 mV is found for 3a. Stoichiometric reactions of 3a with both fluorenol and TEMPOH result in the formation of (Me4N)2[V2(O)2(μ-OH)2(pinF)2] (4a), which contains two V(IV) centers that display antiferromagnetic coupling. In order to structurally characterize the dinuclear anion of 4a, {K(18C6)}+ countercations were employed, which formed stabilizing K···O interactions between the counterion and each terminal oxo moiety and H-bonding between the oxygen atoms of the crown ether and μ-OH bridges of the dimer, resulting in {K(18C6)}2[V2(O)2(μ-OH)2(pinF)2] (4b). The formal storage of H2 in 4a is reversible and proton-coupled electron transfer (PCET) from crystals of 4a regenerates 3a upon exposure to air over the course of several days. Furthermore, the reaction of 3a (2%) under ambient conditions with excess fluorenol, cinnamyl alcohol, or benzyl alcohol resulted in the selective formation of fluorenone (82% conversion), cinnamaldehyde (40%), or benzaldehyde (7%), respectively, reproducing oxidative alcohol dehydrogenation (OAD) chemistry known for VOx surfaces and demonstrating, in air, the thermodynamically challenging selective oxidation of alcohols to aldehydes/ketones.
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Affiliation(s)
- Jessica K Elinburg
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Samantha L Carter
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Joshua J M Nelson
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Douglas G Fraser
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Michael P Crockett
- Department of Chemistry, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Aaron B Beeler
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Ebbe Nordlander
- Chemical Physics, Department of Chemistry, Lund University, Lund SE-221 00, Sweden
| | - Arnold L Rheingold
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0332, La Jolla, California 92093, United States
| | - Linda H Doerrer
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
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17
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Bruns DL, Musaev DG, Stahl SS. Can Donor Ligands Make Pd(OAc) 2 a Stronger Oxidant? Access to Elusive Palladium(II) Reduction Potentials and Effects of Ancillary Ligands via Palladium(II)/Hydroquinone Redox Equilibria. J Am Chem Soc 2020; 142:19678-19688. [PMID: 33167610 DOI: 10.1021/jacs.0c09464] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Palladium(II)-catalyzed oxidation reactions represent an important class of methods for selective modification and functionalization of organic molecules. This field has benefitted greatly from the discovery of ancillary ligands that expand the scope, reactivity, and selectivity in these reactions; however, ancillary ligands also commonly poison these reactions. The different influences of ligands in these reactions remain poorly understood. For example, over the 60-year history of this field, the PdII/0 redox potentials for catalytically relevant Pd complexes have never been determined. Here, we report the unexpected discovery of (L)PdII(OAc)2-mediated oxidation of hydroquinones, the microscopic reverse of quinone-mediated oxidation of Pd0 commonly employed in PdII-catalyzed oxidation reactions. Analysis of redox equilibria arising from the reaction of (L)Pd(OAc)2 and hydroquinones (L = bathocuproine, 4,5-diazafluoren-9-one), generating reduced (L)Pd species and benzoquinones, provides the basis for determination of (L)PdII(OAc)2 reduction potentials. Experimental results are complemented by density functional theory calculations to show how a series of nitrogen-based ligands modulate the (L)PdII(OAc)2 reduction potential, thereby tuning the ability of PdII to serve as an effective oxidant of organic molecules in catalytic reactions.
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Affiliation(s)
- David L Bruns
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue Madison, Wisconsin 53706, United States
| | - Djamaladdin G Musaev
- Cherry L. Emerson Center for Scientific Computation and Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Shannon S Stahl
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue Madison, Wisconsin 53706, United States
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18
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Roberts JM, Belowich ME, Peterson TH, Bellinger E, Syverud K, Laitar DS, Sidle T. Homoconjugated Acids as Low Cyclosiloxane-Producing Silanol Polycondensation Catalysts. ACS OMEGA 2020; 5:24954-24963. [PMID: 33015515 PMCID: PMC7528505 DOI: 10.1021/acsomega.0c03883] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 09/10/2020] [Indexed: 06/11/2023]
Abstract
Polycondensation of α,ω-disilanols is a foundational technology for silicones producers. Commercially, this process is carried out with strong Brønsted acids and bases, which generates cyclosiloxane byproducts. Homoconjugated acids (a 2:1 complex of acid:base or a 1:1 complex of acid:salt), a seldom used class of silanol polycondensation catalysts, were evaluated for their ability to polymerize α,ω-disilanols while forming low levels of cyclosiloxane byproducts. Homoconjugated acid catalysts were highly active for silanol polycondensation, even when made from relatively mild acids such as acetic acid. Both the acid and base (or cation) component of the homoconjugated species was important for activity and avoiding cyclosiloxane byproduct formation. Stronger acids and bases were found to positively affect reactivity, and the pK a of the acid was found to correlate with cyclosiloxane byproduct formation. The individual components of the homoconjugated species (the acid and base) were ineffective as catalysts by themselves, and compositions with fewer than 2 mol of acid to 1 mol of base were much less reactive. Homoconjugated trifluoroacetic acid tetramethylguanidinium and tetrabutylphosphonium complexes were found to be privileged catalysts, able to give high-molecular-weight siloxanes (M n > 60 kDa) while generating less than 100 ppm of octamethylcyclotetrasiloxane byproduct. Finally, a mechanism has been proposed where silanols are electrophilically and nucleophilically activated by the homoconjugated species, leading to silanol polycondensation.
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Affiliation(s)
- John M. Roberts
- Dow Inc., Core R&D, 633 Washington, Midland, Michigan 48667, United States
| | | | - Thomas H. Peterson
- Dow Inc., Core R&D, 633 Washington, Midland, Michigan 48667, United States
| | - Edward Bellinger
- Dow Inc., Core R&D, 633 Washington, Midland, Michigan 48667, United States
| | - Karin Syverud
- Dow Inc., Core R&D, 633 Washington, Midland, Michigan 48667, United States
| | - David S. Laitar
- Dow Inc., Core R&D, 633 Washington, Midland, Michigan 48667, United States
| | - Tobias Sidle
- Dow Inc., Core R&D, 633 Washington, Midland, Michigan 48667, United States
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19
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Mahdavi-Shakib A, Sempel J, Babb L, Oza A, Hoffman M, Whittaker TN, Chandler BD, Austin RN. Combining Benzyl Alcohol Oxidation Saturation Kinetics and Hammett Studies as Mechanistic Tools for Examining Supported Metal Catalysts. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02212] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Akbar Mahdavi-Shakib
- Department of Chemistry, Barnard College of Columbia University, 3009 Broadway, New York, New York 10027, United States
- Department of Chemistry, Trinity University, San Antonio, Texas 78212-7200, United States
| | - Janine Sempel
- Department of Chemistry, Barnard College of Columbia University, 3009 Broadway, New York, New York 10027, United States
| | - Lauren Babb
- Department of Chemistry, Barnard College of Columbia University, 3009 Broadway, New York, New York 10027, United States
| | - Aisha Oza
- Department of Chemistry, Barnard College of Columbia University, 3009 Broadway, New York, New York 10027, United States
| | - Maya Hoffman
- Department of Chemistry, Barnard College of Columbia University, 3009 Broadway, New York, New York 10027, United States
| | - Todd N. Whittaker
- Department of Chemistry, Trinity University, San Antonio, Texas 78212-7200, United States
| | - Bert D. Chandler
- Department of Chemistry, Trinity University, San Antonio, Texas 78212-7200, United States
| | - Rachel Narehood Austin
- Department of Chemistry, Barnard College of Columbia University, 3009 Broadway, New York, New York 10027, United States
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20
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Chen H, Farizyan M, Ghiringhelli F, van Gemmeren M. Sterically Controlled C-H Olefination of Heteroarenes. Angew Chem Int Ed Engl 2020; 59:12213-12220. [PMID: 32267990 PMCID: PMC7384109 DOI: 10.1002/anie.202004521] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Indexed: 01/06/2023]
Abstract
The regioselective functionalization of heteroarenes is a highly attractive synthetic target due to the prevalence of multiply substituted heteroarenes in nature and bioactive compounds. Some substitution patterns remain challenging: While highly efficient methods for the C2-selective olefination of 3-substituted five-membered heteroarenes have been reported, analogous methods to access the 5-olefinated products have remained limited by poor regioselectivities and/or the requirement to use an excess of the valuable heteroarene starting material. Herein we report a sterically controlled C-H olefination using heteroarenes as the limiting reagent. The method enables the highly C5-selective olefination of a wide range of heteroarenes and is shown to be useful in the context of late-stage functionalization.
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Affiliation(s)
- Hao Chen
- Max Planck Institute for Chemical Energy ConversionStiftstraße 34–3645470Mülheim an der RuhrGermany
| | - Mirxan Farizyan
- Max Planck Institute for Chemical Energy ConversionStiftstraße 34–3645470Mülheim an der RuhrGermany
| | - Francesca Ghiringhelli
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
| | - Manuel van Gemmeren
- Max Planck Institute for Chemical Energy ConversionStiftstraße 34–3645470Mülheim an der RuhrGermany
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
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21
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Chen H, Farizyan M, Ghiringhelli F, Gemmeren M. Sterically Controlled C−H Olefination of Heteroarenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004521] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Hao Chen
- Max Planck Institute for Chemical Energy Conversion Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
| | - Mirxan Farizyan
- Max Planck Institute for Chemical Energy Conversion Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
| | - Francesca Ghiringhelli
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Manuel Gemmeren
- Max Planck Institute for Chemical Energy Conversion Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
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22
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McCullough K, Williams T, Mingle K, Jamshidi P, Lauterbach J. High-throughput experimentation meets artificial intelligence: a new pathway to catalyst discovery. Phys Chem Chem Phys 2020; 22:11174-11196. [PMID: 32393932 DOI: 10.1039/d0cp00972e] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
High throughput experimentation in heterogeneous catalysis provides an efficient solution to the generation of large datasets under reproducible conditions. Knowledge extraction from these datasets has mostly been performed using statistical methods, targeting the optimization of catalyst formulations. The combination of advanced machine learning methodologies with high-throughput experimentation has enormous potential to accelerate the predictive discovery of novel catalyst formulations that do not exist with current statistical design of experiments. This perspective describes selective examples ranging from statistical design of experiments for catalyst synthesis to genetic algorithms applied to catalyst optimization, and finally random forest machine learning using experimental data for the discovery of novel catalysts. Lastly, this perspective also provides an outlook on advanced machine learning methodologies as applied to experimental data for materials discovery.
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Affiliation(s)
- Katherine McCullough
- College of Engineering and Computing, University of South Carolina, Columbia, SC 29208, USA.
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23
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Rogers JA, Popp BV. Operando Infrared Spectroscopy Study of Iron-Catalyzed Hydromagnesiation of Styrene: Explanation of Nonlinear Catalyst and Inhibitory Substrate Dependencies. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00492] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jessica A. Rogers
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Brian V. Popp
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
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24
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Nasrollahzadeh M, Sajjadi M, Shokouhimehr M, Varma RS. Recent developments in palladium (nano)catalysts supported on polymers for selective and sustainable oxidation processes. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.06.010] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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25
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Murugesan V, Balakrishnan V, Rasappan R. Nickel-catalyzed cross-coupling reaction of carbamates with silylmagnesium reagents. J Catal 2019. [DOI: 10.1016/j.jcat.2019.07.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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26
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Jaworski JN, Kozack CV, Tereniak SJ, Knapp SMM, Landis CR, Miller JT, Stahl SS. Operando Spectroscopic and Kinetic Characterization of Aerobic Allylic C-H Acetoxylation Catalyzed by Pd(OAc) 2/4,5-Diazafluoren-9-one. J Am Chem Soc 2019; 141:10462-10474. [PMID: 31184479 DOI: 10.1021/jacs.9b04699] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Allylic C-H acetoxylations are among the most widely studied palladium(II)-catalyzed C-H oxidation reactions. While the principal reaction steps are well established, key features of the catalytic mechanisms are poorly characterized, including the identity of the turnover-limiting step and the catalyst resting state. Here, we report a mechanistic study of aerobic allylic acetoxylation of allylbenzene with a catalyst system composed of Pd(OAc)2 and 4,5-diazafluoren-9-one (DAF). The DAF ligand is unique in its ability to support aerobic catalytic turnover, even in the absence of benzoquinone or other co-catalysts. Herein, we describe operando spectroscopic analysis of the catalytic reaction using X-ray absorption and NMR spectroscopic methods that allow direct observation of the formation and decay of a palladium(I) species during the reaction. Kinetic studies reveal the presence of two distinct kinetic phases: (1) a burst phase, involving rapid formation of the allylic acetoxylation product and formation of the dimeric PdI complex [PdI(DAF)(OAc)]2, followed by (2) a post-burst phase that coincides with evolution of the catalyst resting state from the PdI dimer into a π-allyl-PdII species. The data provide unprecedented insights into the role of ancillary ligands in supporting catalytic turnover with O2 as the stoichiometric oxidant and establish an important foundation for the development of improved catalysts for allylic oxidation reactions.
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Affiliation(s)
- Jonathan N Jaworski
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Caitlin V Kozack
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Stephen J Tereniak
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Spring Melody M Knapp
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Clark R Landis
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Jeffrey T Miller
- David School of Chemical Engineering , Purdue University , 480 Stadium Mall Drive , West Lafayette , Indiana 47907 , United States
| | - Shannon S Stahl
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
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27
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Adam R, Mon M, Greco R, Kalinke LHG, Vidal-Moya A, Fernandez A, Winpenny REP, Doménech-Carbó A, Leyva-Pérez A, Armentano D, Pardo E, Ferrando-Soria J. Self-Assembly of Catalytically Active Supramolecular Coordination Compounds within Metal-Organic Frameworks. J Am Chem Soc 2019; 141:10350-10360. [PMID: 31194534 DOI: 10.1021/jacs.9b03914] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Supramolecular coordination compounds (SCCs) represent the power of coordination chemistry methodologies to self-assemble discrete architectures with targeted properties. SCCs are generally synthesized in solution, with isolated fully coordinated metal atoms as structural nodes, thus severely limited as metal-based catalysts. Metal-organic frameworks (MOFs) show unique features to act as chemical nanoreactors for the in situ synthesis and stabilization of otherwise not accessible functional species. Here, we present the self-assembly of PdII SCCs within the confined space of a pre-formed MOF (SCCs@MOF) and its post-assembly metalation to give a PdII-AuIII supramolecular assembly, crystallography underpinned. These SCCs@MOFs catalyze the coupling of boronic acids and/or alkynes, representative multi-site metal-catalyzed reactions in which traditional SCCs tend to decompose, and retain their structural integrity as a consequence of the synergetic hybridization between SCCs and MOFs. These results open new avenues in both the synthesis of novel SCCs and their use in heterogeneous metal-based supramolecular catalysis.
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Affiliation(s)
- Rosa Adam
- Instituto de Tecnología Química , Universidad Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC) , Avda. de los Naranjos s/n , 46022 Valencia , Spain
| | - Marta Mon
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Catedrático José Beltrán Martínez, 2 , Universidad de Valencia , 46980 Paterna , Valencia , Spain
| | - Rossella Greco
- Instituto de Tecnología Química , Universidad Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC) , Avda. de los Naranjos s/n , 46022 Valencia , Spain
| | - Lucas H G Kalinke
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Catedrático José Beltrán Martínez, 2 , Universidad de Valencia , 46980 Paterna , Valencia , Spain.,Instituto Federal de Goiás-IFG , 75131-457 , Anápolis , Goiás , Brazil
| | - Alejandro Vidal-Moya
- Instituto de Tecnología Química , Universidad Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC) , Avda. de los Naranjos s/n , 46022 Valencia , Spain
| | - Antonio Fernandez
- Chemistry Department , Sir David Davies Building, Loughborough University , Loughborough LE11 3TU , United Kingdom
| | - Richard E P Winpenny
- School of Chemistry and Photon Science Institute , The University of Manchester , Oxford Road , Manchester M13 9PL , United Kingdom
| | - Antonio Doménech-Carbó
- Departament de Química Analítica , Universitat de València , Dr. Moliner, 50 , 46100 Burjassot , València , Spain
| | - Antonio Leyva-Pérez
- Instituto de Tecnología Química , Universidad Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC) , Avda. de los Naranjos s/n , 46022 Valencia , Spain
| | - Donatella Armentano
- Dipartimento di Chimica e Tecnologie Chimiche (CTC) , Università della Calabria , via P. Bucci, 12 , Rende 87036 , Cosenza , Italy
| | - Emilio Pardo
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Catedrático José Beltrán Martínez, 2 , Universidad de Valencia , 46980 Paterna , Valencia , Spain
| | - Jesús Ferrando-Soria
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Catedrático José Beltrán Martínez, 2 , Universidad de Valencia , 46980 Paterna , Valencia , Spain
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28
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Yamashita M, Kawasumi Y, Tachibana Y, Horiuchi S, Yamamoto K, Murahashi T. Extended Open‐Chain Polyenides as Versatile Delocalized Anion Ligands for Metal Chain Clusters. Chemistry 2018; 25:1212-1216. [DOI: 10.1002/chem.201805800] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Mitsuki Yamashita
- Department of Chemical Science and EngineeringTokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8552 Japan
| | - Yuna Kawasumi
- Department of Chemical Science and EngineeringTokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8552 Japan
| | - Yuki Tachibana
- Research Center of Integrative Molecular Systems (CIMoS)Institute for Molecular ScienceNational Institutes of Natural Sciences Myodaiji Okazaki Aichi 444-8787 Japan
- Department of Applied ChemistryGraduate School of EngineeringOsaka University Suita Osaka 565-0871 Japan
| | - Shinnosuke Horiuchi
- Research Center of Integrative Molecular Systems (CIMoS)Institute for Molecular ScienceNational Institutes of Natural Sciences Myodaiji Okazaki Aichi 444-8787 Japan
| | - Koji Yamamoto
- Department of Chemical Science and EngineeringTokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8552 Japan
| | - Tetsuro Murahashi
- Department of Chemical Science and EngineeringTokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8552 Japan
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29
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Fiévet F, Ammar-Merah S, Brayner R, Chau F, Giraud M, Mammeri F, Peron J, Piquemal JY, Sicard L, Viau G. The polyol process: a unique method for easy access to metal nanoparticles with tailored sizes, shapes and compositions. Chem Soc Rev 2018; 47:5187-5233. [PMID: 29901663 DOI: 10.1039/c7cs00777a] [Citation(s) in RCA: 204] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
After about three decades of development, the polyol process is now widely recognized and practised as a unique soft chemical method for the preparation of a large variety of nanoparticles which can be used in important technological fields. It offers many advantages: low cost, ease of use and, very importantly, already proven scalability for industrial applications. Among the different classes of inorganic nanoparticles which can be prepared in liquid polyols, metals were the first reported. This review aims to give a comprehensive account of the strategies used to prepare monometallic nanoparticles and multimetallic materials with tailored size and shape. As regards monometallic materials, while the preparation of noble as well as ferromagnetic metals is now clearly established, the scope of the polyol process has been extended to the preparation of more electropositive metals, such as post-transition metals and semi-metals. The potential of this method is also clearly displayed for the preparation of alloys, intermetallics and core-shell nanostructures with a very large diversity of compositions and architectures.
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Affiliation(s)
- F Fiévet
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, CNRS UMR 7086, 15 rue J.-A. de Baïf, 75205 Paris Cedex 13, France.
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30
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Groppo E, Lazzarini A, Carosso M, Bugaev A, Manzoli M, Pellegrini R, Lamberti C, Banerjee D, Longo A. Dynamic Behavior of Pd/P4VP Catalyst during the Aerobic Oxidation of 2-Propanol: A Simultaneous SAXS/XAS/MS Operando Study. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01421] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elena Groppo
- Department of Chemistry, INSTM and NIS Centre, University of Turin, via Quarello 15, Turin I-10135, Italy
| | - Andrea Lazzarini
- Department of Chemistry, INSTM and NIS Centre, University of Turin, via Quarello 15, Turin I-10135, Italy
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Sem Saelands vei 26, Oslo N-0315, Norway
| | - Michele Carosso
- Department of Chemistry, INSTM and NIS Centre, University of Turin, via Quarello 15, Turin I-10135, Italy
| | - Aram Bugaev
- The Smart Materials Research Center, Southern Federal University, Zorge Street 5, Rostov-on-Don 344090, Russia
| | - Maela Manzoli
- Department of Drug Science and Technology, NIS Centre and INSTM, University of Turin, Via Pietro Giuria 9, Turin I-10125, Italy
| | - Riccardo Pellegrini
- Chimet SpA - Catalyst Division, Via di Pescaiola 74, Viciomaggio Arezzo I-52041, Italy
| | - Carlo Lamberti
- The Smart Materials Research Center, Southern Federal University, Zorge Street 5, Rostov-on-Don 344090, Russia
- Department of Physics and CrisDi Interdepartmental Centre, University of Turin, via Pietro Giuria 1, Turin 10125, Italy
| | - Dipanjan Banerjee
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, Leuven 3001, Belgium
| | - Alessandro Longo
- Netherlands Organization for Scientific Research at ESRF, BP 220, Grenoble F-38043 Cedex 9, France
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31
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Liu JB, Tian YY, Zhang X, Wang LL, Chen DZ. A computational mechanistic study of Pd(ii)-catalyzed γ-C(sp 3)-H olefination/cyclization of amines: the roles of bicarbonate and ligand effect. Dalton Trans 2018; 47:4893-4901. [PMID: 29546266 DOI: 10.1039/c8dt00015h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The detailed mechanism of palladium-catalyzed γ-C(sp3)-H olefination/cyclization of triflyl-protected amines was investigated by density functional theory (DFT) calculations. The olefinated intermediate was initially formed in the first catalytic cycle involving ligand exchange, bicarbonate-assisted C(sp3)-H bond cleavage, alkene insertion and 'reductive β-hydride elimination'. The following syn-addition and reductive elimination furnish the aza-Wacker product. The first step of reductive elimination is the rate-determining step. The mechanism unveils the important roles of bicarbonate: aiding the C-H activation and abstracting the β-proton in the second step of reductive elimination. The parallel bridging mode in the metal-olefin intermediate facilitates the syn-addition, explaining the experimentally observed stereoselectivity. The effect of the monodentate pyridine-based ligands is also discussed.
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Affiliation(s)
- Jian-Biao Liu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Ying-Ying Tian
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Xin Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Lu-Lin Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - De-Zhan Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
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32
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Wang YJ, Li WT, Jiao L. A Convenient Method for the Direct Acquisition of Kinetic Rate Data for Catalytic Organic Reactions by Gas Uptake Measurements. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Yu-Jie Wang
- Center of Basic Molecular Science (CBMS); Department of Chemistry; Tsinghua University; Beijing 10084 China
| | - Wei-Tang Li
- Center of Basic Molecular Science (CBMS); Department of Chemistry; Tsinghua University; Beijing 10084 China
| | - Lei Jiao
- Center of Basic Molecular Science (CBMS); Department of Chemistry; Tsinghua University; Beijing 10084 China
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33
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Mannel DS, King J, Preger Y, Ahmed MS, Root TW, Stahl SS. Mechanistic Insights into Aerobic Oxidative Methyl Esterification of Primary Alcohols with Heterogeneous PdBiTe Catalysts. ACS Catal 2018. [DOI: 10.1021/acscatal.7b02886] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David S. Mannel
- Department of Chemical
and Biological Engineering and ‡Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Jesaiah King
- Department of Chemical
and Biological Engineering and ‡Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Yuliya Preger
- Department of Chemical
and Biological Engineering and ‡Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Maaz S. Ahmed
- Department of Chemical
and Biological Engineering and ‡Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Thatcher W. Root
- Department of Chemical
and Biological Engineering and ‡Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Shannon S. Stahl
- Department of Chemical
and Biological Engineering and ‡Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
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34
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Kuriyama M, Nakashima S, Miyagi T, Sato K, Yamamoto K, Onomura O. Palladium-catalyzed chemoselective anaerobic oxidation of N-heterocycle-containing alcohols. Org Chem Front 2018. [DOI: 10.1039/c8qo00421h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A palladium-catalyzed chemoselective anaerobic oxidation for N-heterocycle-containing alcohols has been achieved with chloroarenes as oxidants.
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Affiliation(s)
- Masami Kuriyama
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - Sho Nakashima
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - Tsubasa Miyagi
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - Kanako Sato
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - Kosuke Yamamoto
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - Osamu Onomura
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
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35
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Zhou M, Yang P, Yuan R, Asiri AM, Wakeel M, Wang X. Modulating Crystallinity of Graphitic Carbon Nitride for Photocatalytic Oxidation of Alcohols. CHEMSUSCHEM 2017; 10:4451-4456. [PMID: 28868731 DOI: 10.1002/cssc.201701392] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 08/12/2017] [Indexed: 06/07/2023]
Abstract
Exploiting efficient photocatalysts with strengthened structure for solar-driven alcohol oxidation is of great significance. The photocatalytic performance of graphitic carbon nitrides can be considerably promoted by modulating its crystallinity. Results confirmed that a high crystallinity accelerates the separation and transfer of photogenerated charge carriers, thus providing more free charges for photoredox reactions. More importantly, the high crystallinity facilitated the adsorption of benzyl alcohol and desorption of benzaldehyde and simultaneously lowered the energy barrier for O2 activation. As a result, the crystalline carbon nitride exhibited a roughly twelvefold promotion with respect to the normal carbon nitride. The remarkable enhancement of activity can be attributed to the synergistic effects of increased electron-hole separation and increased surface reaction kinetics. These findings will open up new opportunities to modulate the structure of polymers for a wide variety of organic reactions.
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Affiliation(s)
- Min Zhou
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, P.R. China
| | - Pengju Yang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, P.R. China
| | - Rusheng Yuan
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, P.R. China
| | - Abdullah M Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Muhammad Wakeel
- Department of Environmental Science, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Xinchen Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, P.R. China
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36
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Tereniak SJ, Stahl SS. Mechanistic Basis for Efficient, Site-Selective, Aerobic Catalytic Turnover in Pd-Catalyzed C-H Imidoylation of Heterocycle-Containing Molecules. J Am Chem Soc 2017; 139:14533-14541. [PMID: 28942639 PMCID: PMC5902801 DOI: 10.1021/jacs.7b07359] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A recently reported Pd-catalyzed method for oxidative imidoylation of C-H bonds exhibits unique features that have important implications for Pd-catalyzed aerobic oxidation catalysis: (1) The reaction tolerates heterocycles that commonly poison Pd catalysts. (2) The site selectivity of C-H activation is controlled by an N-methoxyamide group rather than a suitably positioned heterocycle. (3) A Pd0 source, Pd2(dba)3 (dba = dibenzylideneacetone), is superior to Pd(OAc)2 as a precatalyst, and other PdII sources are ineffective. (4) The reaction performs better with air, rather than pure O2. The present study elucidates the origin of these features. Kinetic, mechanistic, and in situ spectroscopic studies establish that PdII-mediated C-H activation is the turnover-limiting step. The tBuNC substrate is shown to coordinate more strongly to PdII than pyridine, thereby contributing to the lack of heterocycle catalyst poisoning. A well-defined PdII-peroxo complex is a competent intermediate that promotes substrate coordination via proton-coupled ligand exchange. The effectiveness of this substrate coordination step correlates with the basicity of the anionic ligands coordinated to PdII, and Pd0 catalyst precursors are most effective because they selectively afford the PdII-peroxo in situ. Finally, elevated O2 pressures are shown to contribute to background oxidation of the isonitrile, thereby explaining the improved performance of reactions conducted with air rather than 1 atm O2. These collective results explain the unique features of the aerobic C-H imidoylation of N-methoxybenzamides and have important implications for other Pd-catalyzed aerobic C-H oxidation reactions.
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Affiliation(s)
- Stephen J. Tereniak
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Shannon S. Stahl
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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37
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Wang D, Weinstein AB, White PB, Stahl SS. Ligand-Promoted Palladium-Catalyzed Aerobic Oxidation Reactions. Chem Rev 2017; 118:2636-2679. [PMID: 28975795 DOI: 10.1021/acs.chemrev.7b00334] [Citation(s) in RCA: 376] [Impact Index Per Article: 53.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Palladium-catalyzed aerobic oxidation reactions have been the focus of industrial application and extensive research efforts for nearly 60 years. A significant transition occurred in this field approximately 20 years ago, with the introduction of catalysts supported by ancillary ligands. The ligands play crucial roles in the reactions, including promotion of direct oxidation of palladium(0) by O2, bypassing the typical requirement for Cu salts or related redox cocatalysts to facilitate oxidation of the reduced Pd catalyst; facilitation of key bond-breaking and bond-forming steps during substrate oxidation; and modulation of chemo-, regio-, or stereoselectivity of a reaction. The use of ligands has contributed to significant expansion of the scope of accessible aerobic oxidation reactions. Increased understanding of the role of ancillary ligands should promote the development of new synthetic transformations, enable improved control over the reaction selectivity, and improve catalyst activity and stability. This review surveys the different ligands that have been used to support palladium-catalyzed aerobic oxidation reactions and, where possible, describes mechanistic insights into the role played by the ancillary ligand.
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Affiliation(s)
- Dian Wang
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Adam B Weinstein
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Paul B White
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Shannon S Stahl
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
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38
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Ünver H, Kani I. Homogeneous oxidation of alcohols in water catalyzed with Cu(II)-triphenyl acetate/bipyridyl complex. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.06.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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39
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Zhang S, Shen G, Chen Z, Yin G. Accessing the HMF Derivatives from Furfural Acetate through Oxidative Carbonylation. ChemistrySelect 2017. [DOI: 10.1002/slct.201701263] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sicheng Zhang
- School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; 1037 Luoyu Road, Hongshan District Wuhan 430074 China), Key laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Wuhan 430074 (China
| | - Guanfei Shen
- School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; 1037 Luoyu Road, Hongshan District Wuhan 430074 China), Key laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Wuhan 430074 (China
| | - Zhuqi Chen
- School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; 1037 Luoyu Road, Hongshan District Wuhan 430074 China), Key laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Wuhan 430074 (China
| | - Guochuan Yin
- School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; 1037 Luoyu Road, Hongshan District Wuhan 430074 China), Key laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Wuhan 430074 (China
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40
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Ahmed MS, Mannel DS, Root TW, Stahl SS. Aerobic Oxidation of Diverse Primary Alcohols to Carboxylic Acids with a Heterogeneous Pd–Bi–Te/C (PBT/C) Catalyst. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00223] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Maaz S. Ahmed
- Department
of Chemistry and ‡Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - David S. Mannel
- Department
of Chemistry and ‡Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Thatcher W. Root
- Department
of Chemistry and ‡Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Shannon S. Stahl
- Department
of Chemistry and ‡Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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41
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Lazzarini A, Groppo E, Agostini G, Borfecchia E, Giannici F, Portale G, Longo A, Pellegrini R, Lamberti C. Formation and growth of palladium nanoparticles inside porous poly(4-vinyl-pyridine) monitored by operando techniques: The role of different reducing agents. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.06.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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42
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Jaworski JN, McCann SD, Guzei IA, Stahl SS. Detection of Palladium(I) in Aerobic Oxidation Catalysis. Angew Chem Int Ed Engl 2017; 56:3605-3610. [PMID: 28217896 PMCID: PMC5499979 DOI: 10.1002/anie.201700345] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Indexed: 11/07/2022]
Abstract
Palladium(II)-catalyzed oxidation reactions exhibit broad utility in organic synthesis; however, they often feature high catalyst loading and low turnover numbers relative to non-oxidative cross-coupling reactions. Insights into the fate of the Pd catalyst during turnover could help to address this limitation. Herein, we report the identification and characterization of a dimeric PdI species in two prototypical Pd-catalyzed aerobic oxidation reactions: allylic C-H acetoxylation of terminal alkenes and intramolecular aza-Wacker cyclization. Both reactions employ 4,5-diazafluoren-9-one (DAF) as an ancillary ligand. The dimeric PdI complex, [PdI (μ-DAF)(OAc)]2 , which features two bridging DAF ligands and two terminal acetate ligands, has been characterized by several spectroscopic methods, as well as single-crystal X-ray crystallography. The origin of this PdI complex and its implications for catalytic reactivity are discussed.
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Affiliation(s)
- Jonathan N. Jaworski
- Department of Chemistry, University of Wisconsin - Madison 1101 University Ave., Madison, WI 53706
| | - Scott D. McCann
- Department of Chemistry, University of Wisconsin - Madison 1101 University Ave., Madison, WI 53706
| | - Ilia A. Guzei
- Department of Chemistry, University of Wisconsin - Madison 1101 University Ave., Madison, WI 53706
| | - Shannon S. Stahl
- Department of Chemistry, University of Wisconsin - Madison 1101 University Ave., Madison, WI 53706
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43
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Hughes NL, Brown CL, Irwin AA, Cao Q, Muldoon MJ. Palladium(II)-Catalysed Aminocarbonylation of Terminal Alkynes for the Synthesis of 2-Ynamides: Addressing the Challenges of Solvents and Gas Mixtures. CHEMSUSCHEM 2017; 10:675-680. [PMID: 27906507 PMCID: PMC5347853 DOI: 10.1002/cssc.201601601] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Indexed: 06/06/2023]
Abstract
2-Ynamides can be synthesised through PdII catalysed oxidative carbonylation, utilising low catalyst loadings. A variety of alkynes and amines can be used to afford 2-ynamides in high yields, whilst overcoming the drawbacks associated with previous oxidative methods, which rely on dangerous solvents and gas mixtures. The use of [NBu4 ]I allows the utilisation of the industrially recommended solvent ethyl acetate. O2 can be used as the terminal oxidant, and the catalyst can operate under safer conditions with low O2 concentrations.
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Affiliation(s)
- N. Louise Hughes
- School of Chemistry and Chemical EngineeringQueen's University of BelfastStranmillis RoadBelfast, David Keir BuildingBT9 5AGNorthern Ireland
| | - Clare L. Brown
- School of Chemistry and Chemical EngineeringQueen's University of BelfastStranmillis RoadBelfast, David Keir BuildingBT9 5AGNorthern Ireland
| | - Andrew A. Irwin
- School of Chemistry and Chemical EngineeringQueen's University of BelfastStranmillis RoadBelfast, David Keir BuildingBT9 5AGNorthern Ireland
| | - Qun Cao
- School of Chemistry and Chemical EngineeringQueen's University of BelfastStranmillis RoadBelfast, David Keir BuildingBT9 5AGNorthern Ireland
| | - Mark J. Muldoon
- School of Chemistry and Chemical EngineeringQueen's University of BelfastStranmillis RoadBelfast, David Keir BuildingBT9 5AGNorthern Ireland
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44
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Mannel DS, Ahmed MS, Root TW, Stahl SS. Discovery of Multicomponent Heterogeneous Catalysts via Admixture Screening: PdBiTe Catalysts for Aerobic Oxidative Esterification of Primary Alcohols. J Am Chem Soc 2017; 139:1690-1698. [DOI: 10.1021/jacs.6b12722] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David S. Mannel
- Department
of Chemical and Biological Engineering and ‡Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Maaz S. Ahmed
- Department
of Chemical and Biological Engineering and ‡Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Thatcher W. Root
- Department
of Chemical and Biological Engineering and ‡Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Shannon S. Stahl
- Department
of Chemical and Biological Engineering and ‡Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
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45
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Li J, Zhang J, Yang H, Gao Z, Jiang G. A Green Aerobic Oxidative Synthesis of Pyrrolo[1,2-a]quinoxalines from Simple Alcohols without Metals and Additives. J Org Chem 2016; 82:765-769. [DOI: 10.1021/acs.joc.6b02501] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jixing Li
- 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, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jinlong Zhang
- 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, P. R. China
| | - Huameng Yang
- 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, P. R. China
| | - Zeng Gao
- 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, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Gaoxi Jiang
- 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, P. R. China
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46
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Abednatanzi S, Derakhshandeh PG, Abbasi A, Van Der Voort P, Leus K. Direct Synthesis of an Iridium(III) Bipyridine Metal-Organic Framework as a Heterogeneous Catalyst for Aerobic Alcohol Oxidation. ChemCatChem 2016. [DOI: 10.1002/cctc.201600985] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sara Abednatanzi
- Department of Inorganic and Physical Chemistry, Center for Ordered, Materials, Organometallics and Catalysis (COMOC); Ghent University; Krijgslaan 281-S3 9000 Ghent Belgium
- College of Science, School of Chemistry; University of Tehran; Tehran Iran
| | | | - Alireza Abbasi
- College of Science, School of Chemistry; University of Tehran; Tehran Iran
| | - Pascal Van Der Voort
- Department of Inorganic and Physical Chemistry, Center for Ordered, Materials, Organometallics and Catalysis (COMOC); Ghent University; Krijgslaan 281-S3 9000 Ghent Belgium
| | - Karen Leus
- Department of Inorganic and Physical Chemistry, Center for Ordered, Materials, Organometallics and Catalysis (COMOC); Ghent University; Krijgslaan 281-S3 9000 Ghent Belgium
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47
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Kağıt R, Dayan O, Özdemir N. Palladium(II) and Ruthenium(II) complexes bearing arylsulfonate based ligands: Synthesis, structural characterization and catalytic properties. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.06.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Cao Q, Hughes NL, Muldoon MJ. Synthesis of 2-Alkynoates by Palladium(II)-Catalyzed Oxidative Carbonylation of Terminal Alkynes and Alcohols. Chemistry 2016; 22:11982-5. [PMID: 27305489 PMCID: PMC5347984 DOI: 10.1002/chem.201602558] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Indexed: 11/08/2022]
Abstract
A homogeneous Pd(II) catalyst, utilizing a simple and inexpensive amine ligand (TMEDA), allows 2-alkynoates to be prepared in high yields by an oxidative carbonylation of terminal alkynes and alcohols. The catalyst system overcomes many of the limitations of previous palladium carbonylation catalysts. It has an increased substrate scope, avoids large excesses of alcohol substrate and uses a desirable solvent. The catalyst employs oxygen as the terminal oxidant and can be operated under safer gas mixtures.
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Affiliation(s)
- Qun Cao
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland
| | - N Louise Hughes
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland
| | - Mark J Muldoon
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland.
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49
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Diaz J, Rich K, Munie S, Zoch CR, Hubbard JL, Larsen AS. Reactivity of electrophilic Cp*Ru(NO) complex towards alcohols. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.03.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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50
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Kalvet I, Tammiku-Taul J, Mäeorg U, Tämm K, Burk P, Sikk L. NMR and DFT Study of the Copper(I)-Catalyzed Cycloaddition Reaction: H/D Scrambling of Alkynes and Variable Reaction Order of the Catalyst. ChemCatChem 2016. [DOI: 10.1002/cctc.201600176] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Indrek Kalvet
- Institute of Chemistry; University of Tartu (UT); Ravila 14a 50411 Tartu Estonia
| | - Jaana Tammiku-Taul
- Institute of Chemistry; University of Tartu (UT); Ravila 14a 50411 Tartu Estonia
| | - Uno Mäeorg
- Institute of Chemistry; University of Tartu (UT); Ravila 14a 50411 Tartu Estonia
| | - Kaido Tämm
- Institute of Chemistry; University of Tartu (UT); Ravila 14a 50411 Tartu Estonia
| | - Peeter Burk
- Institute of Chemistry; University of Tartu (UT); Ravila 14a 50411 Tartu Estonia
| | - Lauri Sikk
- Institute of Chemistry; University of Tartu (UT); Ravila 14a 50411 Tartu Estonia
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