1
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Yan Q, Yuan QJ, Shatskiy A, Alvey GR, Stepanova EV, Liu JQ, Kärkäs MD, Wang XS. General Approach to Amides through Decarboxylative Radical Cross-Coupling of Carboxylic Acids and Isocyanides. Org Lett 2024; 26:3380-3385. [PMID: 38607963 PMCID: PMC11059110 DOI: 10.1021/acs.orglett.4c00872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 03/26/2024] [Accepted: 04/09/2024] [Indexed: 04/14/2024]
Abstract
Herein, we report a silver-catalyzed protocol for decarboxylative cross-coupling between carboxylic acids and isocyanides, leading to linear amide products through a free-radical mechanism. The disclosed approach provides a general entry to a variety of decorated amides, accommodating a diverse array of radical precursors, including aryl, heteroaryl, alkynyl, alkenyl, and alkyl carboxylic acids. Notably, the protocol proved to be efficient for decarboxylative late-stage functionalization of several elaborate pharmaceuticals, demonstrating its potential applications.
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Affiliation(s)
- Qing Yan
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
| | - Qing-Jia Yuan
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
| | - Andrey Shatskiy
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Gregory R. Alvey
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Elena V. Stepanova
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Research
School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, Lenin Avenue 30, 634050 Tomsk, Russia
| | - Jian-Quan Liu
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
| | - Markus D. Kärkäs
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Xiang-Shan Wang
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
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2
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Geng X, He H, Shatskiy A, Stepanova EV, Alvey GR, Liu JQ, Kärkäs MD, Wang XS. Construction of Phenanthridinone Skeletons through Palladium-Catalyzed Annulation. J Org Chem 2023; 88:12738-12743. [PMID: 37611263 PMCID: PMC10476191 DOI: 10.1021/acs.joc.3c01429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Indexed: 08/25/2023]
Abstract
Herein, a straightforward synthetic approach for the construction of phenanthridin-6(5H)-one skeletons is disclosed. The developed protocol relies on palladium catalysis, providing controlled access to a range of functionalized phenanthridin-6(5H)-ones in 59-88% yields. Furthermore, plausible reaction pathways are proposed based on mechanistic experiments.
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Affiliation(s)
- Xin Geng
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
| | - Heng He
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
| | - Andrey Shatskiy
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Elena V. Stepanova
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Tomsk
Polytechnic University, Lenin Avenue 30, 634050 Tomsk, Russia
| | - Gregory R. Alvey
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Jian-Quan Liu
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Markus D. Kärkäs
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Xiang-Shan Wang
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
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3
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Villo P, Shatskiy A, Kärkäs MD, Lundberg H. Electrosynthetic C-O Bond Activation in Alcohols and Alcohol Derivatives. Angew Chem Int Ed Engl 2023; 62:e202211952. [PMID: 36278406 PMCID: PMC10107720 DOI: 10.1002/anie.202211952] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Indexed: 11/07/2022]
Abstract
Alcohols and their derivatives are ubiquitous and versatile motifs in organic synthesis. Deoxygenative transformations of these compounds are often challenging due to the thermodynamic penalty associated with the cleavage of the C-O bond. However, electrochemically driven redox events have been shown to facilitate the C-O bond cleavage in alcohols and their derivatives either through direct electron transfer or through the use of electron transfer mediators and electroactive catalysts. Herein, a comprehensive overview of preparative electrochemically mediated protocols for C-O bond activation and functionalization is detailed, including direct and indirect electrosynthetic methods, as well as photoelectrochemical strategies.
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Affiliation(s)
- Piret Villo
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden
| | - Helena Lundberg
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden
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4
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Geng X, Shatskiy A, Alvey GR, Liu JQ, Kärkäs MD, Wang XS. Tandem Palladium/Copper-Catalyzed Decarboxylative Approach to Benzoimidazo- and Imidazophenanthridine Skeletons. Org Lett 2022; 24:9194-9199. [PMID: 36512690 PMCID: PMC9791681 DOI: 10.1021/acs.orglett.2c03647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A protocol for a tandem Pd/Cu-catalyzed intermolecular cross-coupling cascade between o-bromobenzoic acids and 2-(2-bromoaryl)-1H-benzo[d]imidazoles or the corresponding imidazoles is presented. The protocol provides conceptually novel and controlled access to synthetically useful N-fused (benzo)imidazophenanthridine scaffolds with high efficiency, a broad substrate scope, and excellent functional group compatibility.
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Affiliation(s)
- Xin Geng
- School
of Chemistry and Materials Science, Jiangsu Key Laboratory of Green
Synthesis for Functional Materials, Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
| | - Andrey Shatskiy
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Gregory R. Alvey
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Jian-Quan Liu
- School
of Chemistry and Materials Science, Jiangsu Key Laboratory of Green
Synthesis for Functional Materials, Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China,Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden,
| | - Markus D. Kärkäs
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden,
| | - Xiang-Shan Wang
- School
of Chemistry and Materials Science, Jiangsu Key Laboratory of Green
Synthesis for Functional Materials, Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China,
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5
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Villo P, Shatskiy A, Kärkäs MD, Lundberg H. Electrosynthetic C–O Bond Activation in Alcohols and Alcohol Derivatives. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202211952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Piret Villo
- KTH Royal Institute of Technology: Kungliga Tekniska Hogskolan Department of Chemistry Teknikringen 30 10044 Stockholm SWEDEN
| | - Andrey Shatskiy
- KTH Royal Institute of Technology: Kungliga Tekniska Hogskolan Department of Chemistry Teknikringen 30 10044 Stockholm SWEDEN
| | - Markus D. Kärkäs
- KTH Royal Institute of Technology: Kungliga Tekniska Hogskolan Department of Chemistry Teknikringen 30 10044 Stockholm SWEDEN
| | - Helena Lundberg
- KTH Royal Institute of Technology: Kungliga Tekniska Hogskolan Department of Chemistry Teknikringen 30 10044 Stockholm SWEDEN
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6
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Avetyan DL, Shatskiy A, Kärkäs MD, Stepanova EV. Scalable total synthesis of natural vanillin-derived glucoside ω-esters. Carbohydr Res 2022; 522:108683. [PMID: 36179617 DOI: 10.1016/j.carres.2022.108683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/08/2022] [Accepted: 09/20/2022] [Indexed: 11/02/2022]
Abstract
The first total synthesis of vanilloloside, calleryanin, and a series of naturally occurring ω-esters of vanilloloside was realized through direct glycosylation of vanillin-based aglycones or late-stage derivatization of vanilloloside. All aglycones and their fragments were synthesized from vanillin as the sole aromatic precursor. Subsequently, these intermediates were used to construct various vanillin-derived glucoside ω-esters using a mild acidic deacetylation as the key synthetic step, providing the final products in the total yields of 10-50% and general purity of >95%. Additionally, the first operationally simple and sustainable synthesis of litseafoloside B was realized on large scale, avoiding the use of toxic solvents and reagents, providing an attractive alternative to isolation of this and other similar compounds from plant sources.
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Affiliation(s)
- David L Avetyan
- Tomsk Polytechnic University, Lenin Avenue 30, 634050, Tomsk, Russia
| | - Andrey Shatskiy
- KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden
| | - Markus D Kärkäs
- KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden
| | - Elena V Stepanova
- Tomsk Polytechnic University, Lenin Avenue 30, 634050, Tomsk, Russia.
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7
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Zhou C, Shatskiy A, Temerdashev AZ, Kärkäs MD, Dinér P. Highly congested spiro-compounds via photoredox-mediated dearomative annulation cascade. Commun Chem 2022; 5:92. [PMID: 36697909 PMCID: PMC9814605 DOI: 10.1038/s42004-022-00706-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/15/2022] [Indexed: 01/28/2023] Open
Abstract
Photo-mediated radical dearomatization involving 5-exo-trig cyclizations has proven to be an important route to accessing spirocyclic compounds, whereas 6-exo-trig spirocyclization has been much less explored. In this work, a dearomative annulation cascade is realized through photoredox-mediated C-O bond activation of aromatic carboxylic acids to produce two kinds of spirocyclic frameworks. Mechanistically, the acyl radical is formed through oxidation of triphenylphosphine and subsequent C-O bond cleavage, followed by a 6-exo-trig cyclization/SET/protonation sequence to generate the spiro-chromanone products in an intramolecular manner. Furthermore, the protocol was extended to more challenging intermolecular tandem sequences consisting of C-O bond cleavage, radical addition to an alkene substrate, and 5-exo-trig cyclization to yield complex spirocyclic lactams.
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Affiliation(s)
- Chao Zhou
- Department of Chemistry, Division of Organic Chemistry, KTH Royal Institute of Technology, Teknikringen 30, 10044, Stockholm, Sweden
| | - Andrey Shatskiy
- Department of Chemistry, Division of Organic Chemistry, KTH Royal Institute of Technology, Teknikringen 30, 10044, Stockholm, Sweden
| | - Azamat Z Temerdashev
- Department of Analytical Chemistry, Kuban State University, Stavropolskaya St. 149, 350040, Krasnodar, Russia
| | - Markus D Kärkäs
- Department of Chemistry, Division of Organic Chemistry, KTH Royal Institute of Technology, Teknikringen 30, 10044, Stockholm, Sweden
| | - Peter Dinér
- Department of Chemistry, Division of Organic Chemistry, KTH Royal Institute of Technology, Teknikringen 30, 10044, Stockholm, Sweden.
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8
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Xu L, Liu X, Alvey GR, Shatskiy A, Liu JQ, Kärkäs MD, Wang XS. Silver-Catalyzed Controlled Intermolecular Cross-Coupling of Silyl Enol Ethers: Scalable Access to 1,4-Diketones. Org Lett 2022; 24:4513-4518. [PMID: 35713416 PMCID: PMC9536665 DOI: 10.1021/acs.orglett.2c01477] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
![]()
A protocol
for silver-catalyzed controlled intermolecular cross-coupling
of silyl enolates is disclosed. The protocol displays good functional
group tolerance and allows efficient preparation of a series of synthetically
useful 1,4-diketones. Preliminary mechanistic investigations suggest
that the reaction proceeds through a one-electron process involving
free radical species in which PhBr acts as the oxidant.
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Affiliation(s)
- Li Xu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Xiaoyi Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Gregory R Alvey
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.,Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
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9
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Li L, Das B, Rahaman A, Shatskiy A, Ye F, Cheng P, Yuan C, Yang Z, Verho O, Kärkäs MD, Dutta J, Weng TC, Åkermark B. Ruthenium containing molecular electrocatalyst on glassy carbon for electrochemical water splitting. Dalton Trans 2022; 51:7957-7965. [PMID: 35546321 DOI: 10.1039/d2dt00824f] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Electrochemical water splitting constitutes one of the most promising strategies for converting water into hydrogen-based fuels, and this technology is predicted to play a key role in the transition towards a carbon-neutral energy economy. To enable the design of cost-effective electrolysis cells based on this technology, new and more efficient anodes with augmented water splitting activity and stability will be required. Herein, we report an active molecular Ru-based catalyst for electrochemically-driven water oxidation (overpotential of ∼395 mV at pH 7 phosphate buffer) and two simple methods for preparing anodes by attaching this catalyst onto glassy carbon through multi-walled carbon nanotubes to improve stability as well as reactivity. The anodes modified with the molecular catalyst were characterized by a broad toolbox of microscopy and spectroscopy techniques, and interestingly no RuO2 formation was detected during electrocatalysis over 4 h. These results demonstrate that the herein presented strategy can be used to prepare anodes that rival the performance of state-of-the-art metal oxide anodes.
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Affiliation(s)
- Lin Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China. .,Department of Organic Chemistry, Arrhenius Laboratory Stockholm University, Svante Arrhenius v-g 16C, 10691 Stockholm, Sweden. .,Center for Transformative Science, ShanghaiTech University, Shanghai 201210, China
| | - Biswanath Das
- Department of Organic Chemistry, Arrhenius Laboratory Stockholm University, Svante Arrhenius v-g 16C, 10691 Stockholm, Sweden.
| | - Ahibur Rahaman
- Department of Organic Chemistry, Arrhenius Laboratory Stockholm University, Svante Arrhenius v-g 16C, 10691 Stockholm, Sweden.
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
| | - Fei Ye
- Department of Applied Physics, Functional Materials, KTH Royal Institute of Technology, 106 91 Stockholm, Sweden
| | - Peihong Cheng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Chunze Yuan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China. .,Center for Transformative Science, ShanghaiTech University, Shanghai 201210, China
| | - Zhiqi Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Oscar Verho
- Department of Organic Chemistry, Arrhenius Laboratory Stockholm University, Svante Arrhenius v-g 16C, 10691 Stockholm, Sweden.
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
| | - Joydeep Dutta
- Department of Applied Physics, Functional Materials, KTH Royal Institute of Technology, 106 91 Stockholm, Sweden
| | - Tsu-Chien Weng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China. .,Center for Transformative Science, ShanghaiTech University, Shanghai 201210, China
| | - Björn Åkermark
- Department of Organic Chemistry, Arrhenius Laboratory Stockholm University, Svante Arrhenius v-g 16C, 10691 Stockholm, Sweden.
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10
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Wang YC, Chen X, Alvey GR, Shatskiy A, Liu JQ, Kärkäs MD, Wang XS. Copper-assisted Wittig-type olefination of aldehydes with p-toluenesulfonylmethyl isocyanide. Org Chem Front 2022. [DOI: 10.1039/d2qo00472k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper-assisted Wittig-type olefination of aldehydes and p-toluenesulfonyl isocyanide (TosMIC) is disclosed, providing an operationally simple approach to (E)-vinyl sulfone with various functional groups under mild reaction conditions.
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Affiliation(s)
- Yi-Chun Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Xinyi Chen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Gregory R. Alvey
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Markus D. Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
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11
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12
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Chen Y, Shatskiy A, Liu JQ, Kärkäs MD, Wang XS. Silver-Promoted (4 + 1) Annulation of Isocyanoacetates with Alkylpyridinium Salts: Divergent Regioselective Synthesis of 1,2-Disubstituted Indolizines. Org Lett 2021; 23:7555-7560. [PMID: 34524832 DOI: 10.1021/acs.orglett.1c02754] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
An unprecedented silver-promoted regioselective (4 + 1) annulation of isocyanoacetates with pyridinium salts is reported. The established protocol provides controlled, facile, and modular access to a range of synthetically useful N-fused heterocyclic scaffolds containing indolizines, pyrrolo[1,2-a]quinolines, pyrrolo[2,1-a]isoquinolines, and 1H-imidazo[4,5-a]indolizin-2(3H)-ones. A mechanistic pathway involving nucleophilic addition/protonation/elimination/cycloisomerization is proposed.
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Affiliation(s)
- Yan Chen
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.,Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
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13
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Abstract
Fossil fuel shortage and severe climate changes due to global warming have prompted extensive research on carbon-neutral and renewable energy resources. Hydrogen gas (H2), a clean and high energy density fuel, has emerged as a potential solution for both fulfilling energy demands and diminishing the emission of greenhouse gases. Currently, water oxidation (WO) constitutes the bottleneck in the overall process of producing H2 from water. As a result, the design of efficient catalysts for WO has become an intensively pursued area of research in recent years. Among all the molecular catalysts reported to date, ruthenium-based catalysts have attracted particular attention due to their robust nature and higher activity compared to catalysts based on other transition metals.Over the past two decades, we and others have studied a wide range of ruthenium complexes displaying impressive catalytic performance for WO in terms of turnover number (TON) and turnover frequency (TOF). However, to produce practically applicable electrochemical, photochemical, or photo-electrochemical WO reactors, further improvement of the catalysts' structure to decrease the overpotential and increase the WO rate is of utmost importance. WO reaction, that is, the production of molecular oxygen and protons from water, requires the formation of an O-O bond through the orchestration of multiple proton and electron transfers. Promotion of these processes using redox noninnocent ligand frameworks that can accept and transfer electrons has therefore attracted substantial attention. The strategic modifications of the ligand structure in ruthenium complexes to enable proton-coupled electron transfer (PCET) and atom proton transfer (APT; in the context of WO, it is the oxygen atom (metal oxo) transfer to the oxygen atom of a water molecule in concert with proton transfer to another water molecule) to facilitate the O-O bond formation have played a central role in these efforts.In particular, promising results have been obtained with ligand frameworks containing carboxylic acid groups that either are directly bonded to the metal center or reside in the close vicinity. The improvement of redox and chemical properties of the catalysts by introduction of carboxylate groups in the ligands has proven to be quite general as demonstrated for a range of mono- and dinuclear ruthenium complexes featuring ligand scaffolds based on pyridine, imidazole, and pyridazine cores. In the first coordination sphere, the carboxylate groups are firmly coordinated to the metal center as negatively charged ligands, improving the stability of the complexes and preventing metal leaching during catalysis. Another important phenomenon is the reduction of the potentials required for the formation of higher valent intermediates, especially metal-oxo species, which take active part in the key O-O bond formation step. Furthermore, the free carboxylic acid/carboxylate units in the proximity to the active center have shown exciting proton donor/acceptor properties (through PCET or APT, chemically noninnocent) that can dramatically improve the rate as well as the overpotential of the WO reaction.
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Affiliation(s)
- Biswanath Das
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Svante Arrhenius väg 16C, SE-10691 Stockholm, Sweden
| | - Ahibur Rahaman
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Svante Arrhenius väg 16C, SE-10691 Stockholm, Sweden
| | - Andrey Shatskiy
- Division of Organic Chemistry, Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Oscar Verho
- Department of Medicinal Chemistry, Drug Design and Discovery, Biomedicinskt Centrum BMC, Uppsala University, Husargatan 3, SE-75123 Uppsala, Sweden
| | - Markus D. Kärkäs
- Division of Organic Chemistry, Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Björn Åkermark
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Svante Arrhenius väg 16C, SE-10691 Stockholm, Sweden
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14
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Wu H, Wang YC, Shatskiy A, Li QY, Liu JQ, Kärkäs MD, Wang XS. Modular synthesis of 3-substituted isocoumarins via silver-catalyzed aerobic oxidation/ 6-endo heterocyclization of ortho-alkynylbenzaldehydes. Org Biomol Chem 2021; 19:6657-6664. [PMID: 34271583 DOI: 10.1039/d1ob01065d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A method involving silver-catalyzed aerobic oxidation/6-endo heterocyclization of ortho-alkynylbenzaldehydes to yield 3-substituted isocoumarins is described. The developed protocol allows convenient access to a range of synthetically useful 3-substituted isocoumarins and related fused heterocyclolactones in good to high yields, using silver tetrafluoroborate as the catalyst, and atmospheric oxygen as the terminal oxidant and the source of endocyclic oxygen. Mechanistic studies suggest the involvement of a free-radical pathway.
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Affiliation(s)
- Hao Wu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Yi-Chun Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
| | - Qiu-Yan Li
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China. and Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
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15
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Abstract
AbstractRecently, development of general synthetic routes to unnatural α-amino acids has gained significant momentum, driven by the high demand for such building blocks in fundamental research within molecular and structural biology, as well as for development of new pharmaceuticals. Herein, we highlight the recent progress in employing photoredox-mediated synthetic methods for accessing unnatural α-amino acids with a focus on various decarboxylative radical-based strategies.
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16
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Shatskiy A, Axelsson A, Stepanova EV, Liu JQ, Temerdashev AZ, Kore BP, Blomkvist B, Gardner JM, Dinér P, Kärkäs MD. Stereoselective synthesis of unnatural α-amino acid derivatives through photoredox catalysis. Chem Sci 2021; 12:5430-5437. [PMID: 34168785 PMCID: PMC8179686 DOI: 10.1039/d1sc00658d] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/03/2021] [Indexed: 12/13/2022] Open
Abstract
A protocol for stereoselective C-radical addition to a chiral glyoxylate-derived N-sulfinyl imine was developed through visible light-promoted photoredox catalysis, providing a convenient method for the synthesis of unnatural α-amino acids. The developed protocol allows the use of ubiquitous carboxylic acids as radical precursors without prior derivatization. The protocol utilizes near-stoichiometric amounts of the imine and the acid radical precursor in combination with a catalytic amount of an organic acridinium-based photocatalyst. Alternative mechanisms for the developed transformation are discussed and corroborated by experimental and computational studies.
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Affiliation(s)
- Andrey Shatskiy
- Division of Organic Chemistry, Department of Chemistry, KTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Anton Axelsson
- Division of Organic Chemistry, Department of Chemistry, KTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Elena V Stepanova
- Tomsk Polytechnic University Lenin Avenue 30 634050 Tomsk Russia
- Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences Leninsky Prospect 47 119991 Moscow Russia
| | - Jian-Quan Liu
- Division of Organic Chemistry, Department of Chemistry, KTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Azamat Z Temerdashev
- Department of Analytical Chemistry, Kuban State University Stavropolskaya St. 149 350040 Krasnodar Russia
| | - Bhushan P Kore
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Björn Blomkvist
- Division of Organic Chemistry, Department of Chemistry, KTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - James M Gardner
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Peter Dinér
- Division of Organic Chemistry, Department of Chemistry, KTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Markus D Kärkäs
- Division of Organic Chemistry, Department of Chemistry, KTH Royal Institute of Technology SE-100 44 Stockholm Sweden
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17
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18
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Chen X, Shatskiy A, Liu JQ, D Kärkäs M, Wang XS. Synthesis of Sulfonylated Heterocycles via Copper-Catalyzed Heteroaromatization/Sulfonyl Transfer of Propargylic Alcohols. Chem Asian J 2021; 16:30-33. [PMID: 33025769 DOI: 10.1002/asia.202001126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/01/2020] [Indexed: 01/04/2023]
Abstract
An unprecedented copper-catalyzed heteroaromatization/sulfonyl transfer of propargylic alcohols with isocyanide has been developed. 3-Sulfonyl benzofurans and indoles were produced under Cu(I) catalysis in good to high yields. The developed catalytic methodology provides controlled, modular, and facile access to sulfonyl benzoheterocycle scaffolds.
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Affiliation(s)
- Xinyi Chen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University, 221116, Xuzhou, Jiangsu, P. R. China
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, 100 44, Stockholm, Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University, 221116, Xuzhou, Jiangsu, P. R. China.,Department of Chemistry, KTH Royal Institute of Technology, 100 44, Stockholm, Sweden
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, 100 44, Stockholm, Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University, 221116, Xuzhou, Jiangsu, P. R. China
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19
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Lv L, Chen Y, Shatskiy A, Liu J, Liu X, Kärkäs MD, Wang X. Silver‐Catalyzed [3+1+1] Annulation of Nitrones with Isocyanoacetates as an Approach to 1,4,5‐Trisubstituted Imidazoles. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001536] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Lanlan Lv
- School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University Xuzhou Jiangsu 221116 China
| | - Yan Chen
- School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University Xuzhou Jiangsu 221116 China
| | - Andrey Shatskiy
- Department of Chemistry KTH Royal Institute of Technology 100 44 Stockholm Sweden
| | - Jian‐Quan Liu
- School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University Xuzhou Jiangsu 221116 China
- Department of Chemistry KTH Royal Institute of Technology 100 44 Stockholm Sweden
| | - Xiaoyi Liu
- School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University Xuzhou Jiangsu 221116 China
| | - Markus D. Kärkäs
- Department of Chemistry KTH Royal Institute of Technology 100 44 Stockholm Sweden
| | - Xiang‐Shan Wang
- School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University Xuzhou Jiangsu 221116 China
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20
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Fedorova DD, Nazarova DS, Avetyan DL, Shatskiy A, Belyanin ML, Kärkäs MD, Stepanova EV. Divergent Synthesis of Natural Benzyl Salicylate and Benzyl Gentisate Glucosides. J Nat Prod 2020; 83:3173-3180. [PMID: 33008263 DOI: 10.1021/acs.jnatprod.0c00838] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Herein is reported the first total synthesis of benzyl salicylate and benzyl gentisate glucosides present in various plant species, in particular the Salix genus, such as Populus balsamifera and P. trichocarpa. The method permits the synthesis of several natural phenolic acid derivatives and their glucosides starting from salicylic or gentisic acid. The divergent approach afforded access to three different acetylated glucosides from a common synthetic intermediate. The key step in the total synthesis of naturally occurring glycosides-the selective deacetylation of the sugar moiety-was achieved in the presence of a labile benzyl ester group by employing mild deacetylation conditions. The protocol permitted synthesis of trichocarpine (4 steps, 40% overall yield), isotrichocarpine (3 steps, 51% overall yield), trichoside (6 steps, 40% overall yield), and deoxytrichocarpine (3 steps, 42% overall yield) for the first time (>95% purity). Also, the optimized mild deacetylation conditions allowed synthesis of 2-O-acetylated derivatives of all four glycosides (5-17% overall yield, 90-95% purity), which are rare plant metabolites.
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Affiliation(s)
| | | | - David L Avetyan
- Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634050, Russia
- Siberian State Medical University, Moskovskiy Trakt 2, Tomsk 634050, Russia
| | - Andrey Shatskiy
- Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634050, Russia
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm 10044, Sweden
| | - Maxim L Belyanin
- Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634050, Russia
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm 10044, Sweden
| | - Elena V Stepanova
- Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634050, Russia
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
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21
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Abstract
Herein, an organocatalytic method for photochemical C-O bond cleavage of lignin systems is reported. The use of photochemistry enabled fragmentation of the β-O-4 linkage, the primary linkage in lignin, provides the fragmentation products in good to high yields. The approach was merged with reported oxidation conditions in a one-pot, two-step platform without any intermediary purification, suggesting its high fidelity. The future utility of the organocatalytic method was illustrated by applying the visible light-mediated protocol to continuous flow processing.
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Affiliation(s)
- Cheng Yang
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Markus D Kärkäs
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States.,Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Gabriel Magallanes
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Kimberly Chan
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Corey R J Stephenson
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
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22
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Affiliation(s)
- Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.,Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
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23
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Chen Y, Wu Y, Shatskiy A, Kan Y, Kärkäs MD, Liu JQ, Wang XS. Cooperative Silver- and Base-Catalyzed Diastereoselective Cycloaddition of Nitrones with Methylene Isocyanides: Access to 2-Imidazolinones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000437] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yan Chen
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
| | - Yijing Wu
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
| | - Andrey Shatskiy
- Department of Chemistry; KTH Royal Institute of Technology; 100 44 Stockholm Sweden
| | - Yuhe Kan
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials; School of Chemistry and Chemical Engineering; Huaiyin Normal University; 223300 Huaian PR China
| | - Markus D. Kärkäs
- Department of Chemistry; KTH Royal Institute of Technology; 100 44 Stockholm Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
- Department of Chemistry; KTH Royal Institute of Technology; 100 44 Stockholm Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
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24
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Huang MQ, Li TJ, Liu JQ, Shatskiy A, Kärkäs MD, Wang XS. Switchable Copper-Catalyzed Approach to Benzodithiole, Benzothiaselenole, and Dibenzodithiocine Skeletons. Org Lett 2020; 22:3454-3459. [PMID: 32286077 PMCID: PMC7343286 DOI: 10.1021/acs.orglett.0c00907] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Indexed: 12/19/2022]
Abstract
A copper-catalyzed reaction between 2-bromo-benzothioamides and S8 or Se involving sulfur rearrangement is reported, enabling access to benzodithioles 2 and benzothiaselenoles 6 in the presence of Cs2CO3. In the absence of S8 or Se, the reaction affords dibenzodithiocines 7 via two consecutive C(sp2)-S Ullmann couplings.
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Affiliation(s)
- Meng-Qiao Huang
- School
of Chemistry and Materials Science, Jiangsu Key Laboratory of Green
Synthesis for Functional Materials, Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
| | - Tuan-Jie Li
- School
of Chemistry and Materials Science, Jiangsu Key Laboratory of Green
Synthesis for Functional Materials, Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
| | - Jian-Quan Liu
- School
of Chemistry and Materials Science, Jiangsu Key Laboratory of Green
Synthesis for Functional Materials, Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Andrey Shatskiy
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Markus D. Kärkäs
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Xiang-Shan Wang
- School
of Chemistry and Materials Science, Jiangsu Key Laboratory of Green
Synthesis for Functional Materials, Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
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25
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Shen X, Shatskiy A, Chen Y, Kärkäs MD, Wang XS, Liu JQ. Silver-Assisted [3 + 2] Annulation of Nitrones with Isocyanides: Synthesis of 2,3,4-Trisubstituted 1,2,4-Oxadiazolidin-5-ones. J Org Chem 2020; 85:3560-3567. [PMID: 32013428 PMCID: PMC7307928 DOI: 10.1021/acs.joc.9b03279] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
![]()
A silver-assisted method for [3 +
2] annulation of nitrones with
isocyanides has been developed. The developed protocol allows access
to a variety of 2,3,4-trisubstituted 1,2,4-oxadiazolidin-5-one derivatives
as single diastereomers in good to excellent yields using silver oxide
as the catalyst and molecular oxygen as the terminal oxidant. A plausible
mechanism involving a nucleophilic addition/cyclization/protodeargentation/oxidation
pathway is proposed on the basis of experimental results.
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Affiliation(s)
- Xuanyu Shen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
| | - Yan Chen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.,Department of Chemistry, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
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26
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Shatskiy A, Lundberg H, Kärkäs MD. Cover Feature: Organic Electrosynthesis: Applications in Complex Molecule Synthesis (ChemElectroChem 16/2019). ChemElectroChem 2019. [DOI: 10.1002/celc.201901157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Andrey Shatskiy
- Department of ChemistryKTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Helena Lundberg
- Department of ChemistryKTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Markus D. Kärkäs
- Department of ChemistryKTH Royal Institute of Technology SE-100 44 Stockholm Sweden
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27
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Liu JQ, Chen X, Shatskiy A, Kärkäs MD, Wang XS. Silver-Mediated Synthesis of Substituted Benzofuran- and Indole-Pyrroles via Sequential Reaction of ortho-Alkynylaromatics with Methylene Isocyanides. J Org Chem 2019; 84:8998-9006. [PMID: 31117557 DOI: 10.1021/acs.joc.9b00528] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A silver-mediated reaction between 2-ethynyl-3-(1-hydroxyprop-2-yn-1-yl)phenols or 2-ethynyl-3-(1-hydroxyprop-2-yn-1-yl)anilines and methylene isocyanides has been developed. A sequential 5-endo-dig cyclization and [3 + 2] cycloaddition process is proposed. This synthetic strategy is atom- and step-efficient and applicable to a broad scope of substrates, allowing the synthesis of valuable substituted benzofuran- and indole-pyrroles in moderate to high yields.
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Affiliation(s)
- Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials , Jiangsu Normal University , Xuzhou , Jiangsu 221116 , China.,Department of Chemistry , KTH Royal Institute of Technology , SE-100 44 Stockholm , Sweden
| | - Xinyi Chen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials , Jiangsu Normal University , Xuzhou , Jiangsu 221116 , China
| | - Andrey Shatskiy
- Department of Chemistry , KTH Royal Institute of Technology , SE-100 44 Stockholm , Sweden
| | - Markus D Kärkäs
- Department of Chemistry , KTH Royal Institute of Technology , SE-100 44 Stockholm , Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials , Jiangsu Normal University , Xuzhou , Jiangsu 221116 , China
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28
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Liu J, Shen X, Shatskiy A, Zhou E, Kärkäs MD, Wang X. Silver‐Induced [3+2] Cycloaddition of Isocyanides with Acyl Chlorides: Regioselective Synthesis of 2,5‐Disubstituted Oxazoles. ChemCatChem 2019. [DOI: 10.1002/cctc.201900965] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jian‐Quan Liu
- School of Chemistry and Chemical Engineering Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University Xuzhou Jiangsu 221116 P. R China
- Department of Chemistry Organic ChemistryKTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Xuanyu Shen
- School of Chemistry and Chemical Engineering Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University Xuzhou Jiangsu 221116 P. R China
| | - Andrey Shatskiy
- Department of Chemistry Organic ChemistryKTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Enlong Zhou
- College of Chemistry and Material Science Shandong Agricultural University Taian Shandong 271000 P. R. China
| | - Markus D. Kärkäs
- Department of Chemistry Organic ChemistryKTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Xiang‐Shan Wang
- School of Chemistry and Chemical Engineering Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University Xuzhou Jiangsu 221116 P. R China
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29
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Affiliation(s)
- Andrey Shatskiy
- Department of ChemistryKTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Helena Lundberg
- Department of ChemistryKTH Royal Institute of Technology SE-100 44 Stockholm Sweden
| | - Markus D. Kärkäs
- Department of ChemistryKTH Royal Institute of Technology SE-100 44 Stockholm Sweden
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30
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Liu JQ, Shatskiy A, Matsuura BS, Kärkäs MD. Recent Advances in Photoredox Catalysis Enabled Functionalization of α-Amino Acids and Peptides: Concepts, Strategies and Mechanisms. SYNTHESIS-STUTTGART 2019. [DOI: 10.1055/s-0037-1611852] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The selective modification of α-amino acids and peptides constitutes a pivotal arena for accessing new peptide-based materials and therapeutics. In recent years, visible light photoredox catalysis has appeared as a powerful platform for the activation of small molecules via single-electron transfer events, allowing previously inaccessible reaction pathways to be explored. This review outlines the recent advances, mechanistic underpinnings, and opportunities of applying photoredox catalysis to the expansion of the synthetic repertoire for the modification of specific amino acid residues.1 Introduction2 Visible-Light-Mediated Functionalization of α-Amino Acids2.1 Decarboxylative Functionalization Involving Redox-Active Esters2.2 Direct Decarboxylative Coupling Strategies2.3 Hypervalent Iodine Reagents2.4 Dual Photoredox and Transition-Metal Catalysis2.5 Amination and Deamination Strategies3 Photoinduced Peptide Diversification3.1 Gese-Type Bioconjugation Methods3.2 Peptide Macrocyclization through Photoredox Catalysis3.3 Biomolecule Conjugation through Arylation3.4 C–H Functionalization Manifolds4 Conclusions and Outlook
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Affiliation(s)
- Jian-Quan Liu
- Department of Chemistry, KTH Royal Institute of Technology
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31
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Shatskiy A, Bardin AA, Oschmann M, Matheu R, Benet-Buchholz J, Eriksson L, Kärkäs MD, Johnston EV, Gimbert-Suriñach C, Llobet A, Åkermark B. Electrochemically Driven Water Oxidation by a Highly Active Ruthenium-Based Catalyst. ChemSusChem 2019; 12:2251-2262. [PMID: 30759324 DOI: 10.1002/cssc.201900097] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 02/12/2019] [Indexed: 06/09/2023]
Abstract
The highly active ruthenium-based water oxidation catalyst [RuX (mcbp)(OHn )(py)2 ] [mcbp2- =2,6-bis(1-methyl-4-(carboxylate)benzimidazol-2-yl)pyridine; n=2, 1, and 0 for X=II, III, and IV, respectively], can be generated in a mixture of RuIII and RuIV states from either [RuII (mcbp)(py)2 ] or [RuIII (Hmcbp)(py)2 ]2+ precursors. The precursor complexes are isolated and characterized by single-crystal X-ray analysis, NMR, UV/Vis, EPR, and FTIR spectroscopy, ESI-HRMS, and elemental analysis, and their redox properties are studied in detail by electrochemical and spectroscopic methods. Unlike the parent catalyst [Ru(tda) (py)2 ] (tda2- =[2,2':6',2''-terpyridine]-6,6''-dicarboxylate), for which full transformation into the catalytically active species [RuIV (tda)(O)(py)2 ] could not be carried out, stoichiometric generation of the catalytically active Ru-aqua complex [RuX (mcbp)(OHn )(py)2 ] from the RuII precursor was achieved under mild conditions (pH 7.0) and short reaction times. The redox properties of the catalyst were studied and its activity for electrocatalytic water oxidation was evaluated, reaching a maximum turnover frequency (TOFmax ) of around 40 000 s-1 at pH 9.0 (from foot-of-the-wave analysis), which is comparable to the activity of the state-of-the-art catalyst [RuIV (tda)(O)(py)2 ].
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Affiliation(s)
- Andrey Shatskiy
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Svante Arrhenius väg 16C, 10691, Stockholm, Sweden
| | - Andrey A Bardin
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Svante Arrhenius väg 16C, 10691, Stockholm, Sweden
- Current address: Institute of Problems of Chemical Physics, Russian Academy of Sciences, Academician Semenov's Prospect 1g, 142432 Chernogolovka, Moscow Region, Russia
| | - Michael Oschmann
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Svante Arrhenius väg 16C, 10691, Stockholm, Sweden
| | - Roc Matheu
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Avinguda Països Catalans 16, 43007, Tarragona, Spain
| | - Jordi Benet-Buchholz
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Avinguda Països Catalans 16, 43007, Tarragona, Spain
| | - Lars Eriksson
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Svante Arrhenius väg 16C, 10691, Stockholm, Sweden
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, Teknikringen 30, 10044, Stockholm, Sweden
| | - Eric V Johnston
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Svante Arrhenius väg 16C, 10691, Stockholm, Sweden
- Current address: Sigrid Therapeutics AB, Sankt Göransgatan 159, 11217, Stockholm, Sweden
| | - Carolina Gimbert-Suriñach
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Avinguda Països Catalans 16, 43007, Tarragona, Spain
| | - Antoni Llobet
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Avinguda Països Catalans 16, 43007, Tarragona, Spain
- Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Björn Åkermark
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Svante Arrhenius väg 16C, 10691, Stockholm, Sweden
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32
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Affiliation(s)
- Andrey Shatskiy
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 106 91 Stockholm Sweden
| | - Markus D. Kärkäs
- Department of Chemistry Organic Chemistry KTH Royal Institute of Technology 100 44 Stockholm Sweden
| | - Björn Åkermark
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 106 91 Stockholm Sweden
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33
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Magallanes G, Kärkäs MD, Bosque I, Lee S, Maldonado S, Stephenson CRJ. Selective C–O Bond Cleavage of Lignin Systems and Polymers Enabled by Sequential Palladium-Catalyzed Aerobic Oxidation and Visible-Light Photoredox Catalysis. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04172] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gabriel Magallanes
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Markus D. Kärkäs
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
- Department of Chemistry, Organic Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Irene Bosque
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Sudarat Lee
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Stephen Maldonado
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
- Program in Applied Physics, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Corey R. J. Stephenson
- Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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34
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Kärkäs MD, Li YY, Siegbahn PEM, Liao RZ, Åkermark B. Metal–Ligand Cooperation in Single-Site Ruthenium Water Oxidation Catalysts: A Combined Experimental and Quantum Chemical Approach. Inorg Chem 2018; 57:10881-10895. [DOI: 10.1021/acs.inorgchem.8b01527] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Markus D. Kärkäs
- Department of Chemistry, Organic Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Ying-Ying Li
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Per E. M. Siegbahn
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Rong-Zhen Liao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Björn Åkermark
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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35
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Abstract
Conventional methods for carrying out carbon-hydrogen functionalization and carbon-nitrogen bond formation are typically conducted at elevated temperatures, and rely on expensive catalysts as well as the use of stoichiometric, and perhaps toxic, oxidants. In this regard, electrochemical synthesis has recently been recognized as a sustainable and scalable strategy for the construction of challenging carbon-carbon and carbon-heteroatom bonds. Here, electrosynthesis has proven to be an environmentally benign, highly effective and versatile platform for achieving a wide range of nonclassical bond disconnections via generation of radical intermediates under mild reaction conditions. This review provides an overview on the use of anodic electrochemical methods for expediting the development of carbon-hydrogen functionalization and carbon-nitrogen bond formation strategies. Emphasis is placed on methodology development and mechanistic insight and aims to provide inspiration for future synthetic applications in the field of electrosynthesis.
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Affiliation(s)
- Markus D Kärkäs
- Department of Chemistry, Organic Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
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36
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Kärkäs MD. Photochemical Generation of Nitrogen-Centered Amidyl, Hydrazonyl, and Imidyl Radicals: Methodology Developments and Catalytic Applications. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01385] [Citation(s) in RCA: 280] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Markus D. Kärkäs
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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37
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Bosque I, Magallanes G, Rigoulet M, Kärkäs MD, Stephenson CRJ. Redox Catalysis Facilitates Lignin Depolymerization. ACS Cent Sci 2017; 3:621-628. [PMID: 28691074 PMCID: PMC5492418 DOI: 10.1021/acscentsci.7b00140] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Indexed: 05/06/2023]
Abstract
Lignin is a recalcitrant and underexploited natural feedstock for aromatic commodity chemicals, and its degradation generally requires the use of high temperatures and harsh reaction conditions. Herein we present an ambient temperature one-pot process for the controlled oxidation and depolymerization of this potent resource. Harnessing the potential of electrocatalytic oxidation in conjugation with our photocatalytic cleavage methodology, we have developed an operationally simple procedure for selective fragmentation of β-O-4 bonds with excellent mass recovery, which provides a unique opportunity to expand the existing lignin usage from energy source to commodity chemicals and synthetic building block source.
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38
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Abstract
Lignocellulosic biomass is available in large quantities and constitutes an attractive feedstock for the sustainable production of bulk and fine chemicals. Although methods have been established for the conversion of its cellulosic fractions, valorization of lignin has proven to be challenging. The difficulty in disassembling lignin originates from its heterogeneous structure and its propensity to undergo skeletal rearrangements and condensation reactions during biorefinery fractionation or biomass pretreatment processes. A strategy for hindering the generation of these resistive interunit linkages during biomass pretreatment has now been devised using formaldehyde as a stabilizing agent. The developed method when combined with Ru/C-catalyzed hydrogenolysis allows for efficient disassembly of all three biomass fractions: (cellulose, hemicellulose, and lignin) and suggests that lignin upgrading can be integrated into prevailing biorefinery schemes.
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Affiliation(s)
- Markus D. Kärkäs
- Department of Organic ChemistryArrhenius LaboratoryStockholm University, SE-106 91StockholmSweden
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39
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Abdel‐Magied AF, Arafa WAA, Laine TM, Shatskiy A, Kärkäs MD, Åkermark B, Johnston EV. Substituent Effects in Molecular Ruthenium Water Oxidation Catalysts Based on Amide Ligands. ChemCatChem 2017. [DOI: 10.1002/cctc.201601382] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ahmed F. Abdel‐Magied
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University SE-106 91 Stockholm Sweden
| | - Wael A. A. Arafa
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University SE-106 91 Stockholm Sweden
- Current address: Chemistry Department, Faculty of ScienceFayoum University P.O. Box 63514 Fayoum Egypt
| | - Tanja M. Laine
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University SE-106 91 Stockholm Sweden
| | - Andrey Shatskiy
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University SE-106 91 Stockholm Sweden
| | - Markus D. Kärkäs
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University SE-106 91 Stockholm Sweden
| | - Björn Åkermark
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University SE-106 91 Stockholm Sweden
| | - Eric V. Johnston
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University SE-106 91 Stockholm Sweden
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40
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Gustafson KPJ, Shatskiy A, Verho O, Kärkäs MD, Schluschass B, Tai CW, Åkermark B, Bäckvall JE, Johnston EV. Water oxidation mediated by ruthenium oxide nanoparticles supported on siliceous mesocellular foam. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02121b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient catalyst for chemical and photochemical water oxidation was developed by immobilization of RuO2 nanoparticles on pyridine-functionalized mesoporous silica.
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Affiliation(s)
- Karl P. J. Gustafson
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- Stockholm
- Sweden
| | - Andrey Shatskiy
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- Stockholm
- Sweden
| | - Oscar Verho
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- Stockholm
- Sweden
| | - Markus D. Kärkäs
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- Stockholm
- Sweden
| | - Bastian Schluschass
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- Stockholm
- Sweden
| | - Cheuk-Wai Tai
- Department of Materials and Environmental Chemistry
- Arrhenius Laboratory
- Stockholm University
- Stockholm
- Sweden
| | - Björn Åkermark
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- Stockholm
- Sweden
| | - Jan-Erling Bäckvall
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- Stockholm
- Sweden
| | - Eric V. Johnston
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- Stockholm
- Sweden
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41
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Abdel‐Magied AF, Shatskiy A, Liao R, Laine TM, Arafa WAA, Siegbahn PEM, Kärkäs MD, Åkermark B, Johnston EV. Chemical and Photochemical Water Oxidation Mediated by an Efficient Single-Site Ruthenium Catalyst. ChemSusChem 2016; 9:3448-3456. [PMID: 27966290 PMCID: PMC6680270 DOI: 10.1002/cssc.201601171] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Indexed: 06/06/2023]
Abstract
Water oxidation is a fundamental step in artificial photosynthesis for solar fuels production. In this study, we report a single-site Ru-based water oxidation catalyst, housing a dicarboxylate-benzimidazole ligand, that mediates both chemical and light-driven oxidation of water efficiently under neutral conditions. The importance of the incorporation of the negatively charged ligand framework is manifested in the low redox potentials of the developed complex, which allows water oxidation to be driven by the mild one-electron oxidant [Ru(bpy)3 ]3+ (bpy=2,2'-bipyridine). Furthermore, combined experimental and DFT studies provide insight into the mechanistic details of the catalytic cycle.
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Affiliation(s)
- Ahmed F. Abdel‐Magied
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University106 91StockholmSweden
| | - Andrey Shatskiy
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University106 91StockholmSweden
| | - Rong‐Zhen Liao
- Key Laboratory for Large-Format Battery Materials and SystemMinistry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074P.R. China
| | - Tanja M. Laine
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University106 91StockholmSweden
| | - Wael A. A. Arafa
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University106 91StockholmSweden
- Chemistry Department, Faculty of ScienceFayoum UniversityPO Box 63514FayoumEgypt
| | - Per E. M. Siegbahn
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University106 91StockholmSweden
| | - Markus D. Kärkäs
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University106 91StockholmSweden
| | - Björn Åkermark
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University106 91StockholmSweden
| | - Eric V. Johnston
- Department of Organic Chemistry, Arrhenius LaboratoryStockholm University106 91StockholmSweden
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42
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Kärkäs MD, Matsuura BS, Monos TM, Magallanes G, Stephenson CRJ. Transition-metal catalyzed valorization of lignin: the key to a sustainable carbon-neutral future. Org Biomol Chem 2016; 14:1853-914. [PMID: 26732312 DOI: 10.1039/c5ob02212f] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The development of a sustainable, carbon-neutral biorefinery has emerged as a prominent scientific and engineering goal of the 21st century. As petroleum has become less accessible, biomass-based carbon sources have been investigated for utility in fuel production and commodity chemical manufacturing. One underutilized biomaterial is lignin; however, its highly crosslinked and randomly polymerized composition have rendered this biopolymer recalcitrant to existing chemical processing. More recently, insight into lignin's molecular structure has reinvigorated chemists to develop catalytic methods for lignin depolymerization. This review examines the development of transition-metal catalyzed reactions and the insights shared between the homogeneous and heterogeneous catalytic systems towards the ultimate goal of valorizing lignin to produce value-added products.
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Affiliation(s)
- Markus D Kärkäs
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA.
| | - Bryan S Matsuura
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA.
| | - Timothy M Monos
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA.
| | - Gabriel Magallanes
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA.
| | - Corey R J Stephenson
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA.
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43
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Kärkäs MD, Bosque I, Matsuura BS, Stephenson CRJ. Photocatalytic Oxidation of Lignin Model Systems by Merging Visible-Light Photoredox and Palladium Catalysis. Org Lett 2016; 18:5166-5169. [DOI: 10.1021/acs.orglett.6b02651] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Markus D. Kärkäs
- Department
of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Irene Bosque
- Department
of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Bryan S. Matsuura
- Department
of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Corey R. J. Stephenson
- Department
of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
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44
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Kärkäs MD, Åkermark B. Catalytic Water Oxidation by Ruthenium Complexes Containing Negatively Charged Ligand Frameworks. CHEM REC 2016; 16:940-63. [DOI: 10.1002/tcr.201500254] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Markus D. Kärkäs
- Department of Organic Chemistry; Arrhenius Laboratory, Stockholm University; 106 91 Stockholm Sweden
| | - Björn Åkermark
- Department of Organic Chemistry; Arrhenius Laboratory, Stockholm University; 106 91 Stockholm Sweden
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45
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Rabten W, Åkermark T, Kärkäs MD, Chen H, Sun J, Andersson PG, Åkermark B. A ruthenium water oxidation catalyst based on a carboxamide ligand. Dalton Trans 2016; 45:3272-6. [DOI: 10.1039/c6dt00327c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Herein is presented a single-site Ru complex bearing a carboxamide-based ligand that efficiently manages to carry out the four-electron oxidation of H2O.
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Affiliation(s)
- Wangchuk Rabten
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Torbjörn Åkermark
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Markus D. Kärkäs
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Hong Chen
- Berzelii Centre EXSELENT on Porous Materials
- Department of Materials and Environmental Chemistry
- Stockholm University
- Stockholm
- Sweden
| | - Junliang Sun
- Berzelii Centre EXSELENT on Porous Materials
- Department of Materials and Environmental Chemistry
- Stockholm University
- Stockholm
- Sweden
| | - Pher G. Andersson
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Björn Åkermark
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
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46
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Liao RZ, Kärkäs MD, Laine TM, Åkermark B, Siegbahn PEM. On the mechanism of water oxidation catalyzed by a dinuclear ruthenium complex: a quantum chemical study. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00083e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of efficient and robust catalysts for water oxidation is an essential element in solar water splitting. In the present paper, the reaction mechanism for a dinuclear Ru water oxidation catalyst has been investigated in detail through quantum chemical calculations.
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Affiliation(s)
- Rong-Zhen Liao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Materials Chemistry and Service Failure
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
| | - Markus D. Kärkäs
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Tanja M. Laine
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Björn Åkermark
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Per E. M. Siegbahn
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Materials Chemistry and Service Failure
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
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47
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Kärkäs MD, Liao RZ, Laine TM, Åkermark T, Ghanem S, Siegbahn PEM, Åkermark B. Molecular ruthenium water oxidation catalysts carrying non-innocent ligands: mechanistic insight through structure–activity relationships and quantum chemical calculations. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01704a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein is highlighted how structure–activity relationships can be used to provide mechanistic insight into H2O oxidation catalysis.
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Affiliation(s)
- Markus D. Kärkäs
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Rong-Zhen Liao
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Tanja M. Laine
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Torbjörn Åkermark
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Shams Ghanem
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Per E. M. Siegbahn
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Björn Åkermark
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
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48
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Abstract
Catalysts for the oxidation of water are a vital component of solar energy to fuel conversion technologies. This Perspective summarizes recent advances in the field of designing homogeneous water oxidation catalysts (WOCs) based on Mn, Fe, Co and Cu.
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Affiliation(s)
- Markus D. Kärkäs
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - Björn Åkermark
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm
- Sweden
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49
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Shatskiy A, Lomoth R, Abdel-Magied AF, Rabten W, Laine TM, Chen H, Sun J, Andersson PG, Kärkäs MD, Johnston EV, Åkermark B. Catalyst–solvent interactions in a dinuclear Ru-based water oxidation catalyst. Dalton Trans 2016; 45:19024-19033. [PMID: 27853776 DOI: 10.1039/c6dt03789e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new dinuclear ruthenium-based water oxidation catalyst is described. Insight is provided into interactions between the catalyst and acetonitrile, a common co-solvent in water oxidation catalysis.
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50
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Das B, Lee BL, Karlsson EA, Åkermark T, Shatskiy A, Demeshko S, Liao RZ, Laine TM, Haukka M, Zeglio E, Abdel-Magied AF, Siegbahn PEM, Meyer F, Kärkäs MD, Johnston EV, Nordlander E, Åkermark B. Water oxidation catalyzed by molecular di- and nonanuclear Fe complexes: importance of a proper ligand framework. Dalton Trans 2016; 45:13289-93. [DOI: 10.1039/c6dt01554a] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of two molecular iron complexes, a dinuclear iron(iii,iii) complex and a nonanuclear iron complex, and their use as water oxidation catalysts is described.
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