1
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Xu Y, Li F, Xie H, Liu Y, Han W, Wu J, Cheng L, Wang C, Li Z, Wang L. Directed evolution of Escherichia coli surface-displayed Vitreoscilla hemoglobin as an artificial metalloenzyme for the synthesis of 5-imino-1,2,4-thiadiazoles. Chem Sci 2024; 15:7742-7748. [PMID: 38784746 PMCID: PMC11110144 DOI: 10.1039/d4sc00005f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Accepted: 04/17/2024] [Indexed: 05/25/2024] Open
Abstract
Artificial metalloenzymes (ArMs) are constructed by anchoring organometallic catalysts to an evolvable protein scaffold. They present the advantages of both components and exhibit considerable potential for the in vivo catalysis of new-to-nature reactions. Herein, Escherichia coli surface-displayed Vitreoscilla hemoglobin (VHbSD-Co) that anchored the cobalt porphyrin cofactor instead of the original heme cofactor was used as an artificial thiourea oxidase (ATOase) to synthesize 5-imino-1,2,4-thiadiazoles. After two rounds of directed evolution using combinatorial active-site saturation test/iterative saturation mutagenesis (CAST/ISM) strategy, the evolved six-site mutation VHbSD-Co (6SM-VHbSD-Co) exhibited significant improvement in catalytic activity, with a broad substrate scope (31 examples) and high yields with whole cells. This study shows the potential of using VHb ArMs in new-to-nature reactions and demonstrates the applicability of E. coli surface-displayed methods to enhance catalytic properties through the substitution of porphyrin cofactors in hemoproteins in vivo.
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Affiliation(s)
- Yaning Xu
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University Changchun 130023 P. R. China
| | - Fengxi Li
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University Changchun 130023 P. R. China
| | - Hanqing Xie
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University Changchun 130023 P. R. China
| | - Yuyang Liu
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University Changchun 130023 P. R. China
| | - Weiwei Han
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University Changchun 130023 P. R. China
| | - Junhao Wu
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University Changchun 130023 P. R. China
| | - Lei Cheng
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University Changchun 130023 P. R. China
| | - Chunyu Wang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University Changchun 130023 P. R. China
| | - Zhengqiang Li
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University Changchun 130023 P. R. China
| | - Lei Wang
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University Changchun 130023 P. R. China
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2
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P MA, Chakravarthy A S J, Ila H. Synthesis of 3,5-Disubstituted-1,2,4-thiadiazoles via NaH-DMF-Promoted Dehydrogenative Intramolecular N-S Bond Formation. J Org Chem 2024; 89:4453-4460. [PMID: 38530202 DOI: 10.1021/acs.joc.3c02591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
A facile transition-metal-free synthesis of 3,5-bis(het)aryl/arylaminothiadiazoles has been reported. The overall protocol involves base-mediated tandem thioacylation of amidines with dithioesters or aryl isothiocyanates in DMF solvent and subsequent in situ intramolecular dehydrogenative N-S bond formation of thioacylamidine intermediates under an inert atmosphere. A probable mechanism involving a carbamoyl anion, generated by deprotonation of DMF, acting as a radical initiator has been suggested.
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Affiliation(s)
- Mary Antony P
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Jeevan Chakravarthy A S
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Hiriyakkanavar Ila
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
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3
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Ji HT, Jiang J, He WB, Lu YH, Liu YY, Li X, He WM. Electrochemical Multicomponent Cascade Reaction for the Synthesis of Selenazol-2-amines with Elemental Selenium. J Org Chem 2024; 89:4113-4119. [PMID: 38448366 DOI: 10.1021/acs.joc.3c02946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
The first example of an electrochemical multicomponent synthesis of selenium-containing compounds with inexpensive and abundant elemental selenium as the selenating reagent was developed. A variety of selenazol-2-amines were constructed in high yields with good functional group tolerance under metal-free and chemical oxidant-free conditions.
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Affiliation(s)
- Hong-Tao Ji
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Jun Jiang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Wei-Bao He
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Yu-Han Lu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Yuan-Yuan Liu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Xiao Li
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Wei-Min He
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
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4
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Lin JX, Liu GH, Liu LQ, Wang YC, He Y. Sodium Carbonate-Promoted Formation of 5-Amino-1,2,4-thiadiazoles and 5-Amino-1,2,4-selenadiazoles with Elemental Sulfur and Selenium. J Org Chem 2024; 89:101-110. [PMID: 38071750 DOI: 10.1021/acs.joc.3c01716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Sodium carbonate-promoted facile synthesis of 5-amino-1,2,4-thiadiazoles and 5-amino-1,2,4-selenadiazoles with elemental sulfur and selenium, respectively, was developed. This method was carried out with O2 in the air as the green oxidant, and it has several advantages, including low cost, low toxicity, and stable sulfur and selenium sources, good to excellent yields with water as the sole byproduct, simple operation, and a broad substrate scope. Preliminary mechanistic studies indicate that the formation of the 1,2,4-thiadiazole ring and the 1,2,4-selenadiazole ring undergoes different processes.
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Affiliation(s)
- Jun-Xu Lin
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, People's Republic of China
| | - Guo-Hui Liu
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, People's Republic of China
| | - Li-Qiu Liu
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, People's Republic of China
| | - Ying-Chun Wang
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, People's Republic of China
| | - Yan He
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221018, People's Republic of China
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5
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Li A, Li C, Yang T, Yang Z, Liu Y, Li L, Tang K, Zhou C. Electrochemical Synthesis of Benzo[ d]imidazole via Intramolecular C(sp 3)-H Amination. J Org Chem 2023; 88:1928-1935. [PMID: 34918925 DOI: 10.1021/acs.joc.1c01842] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An electrochemical dehydrogenative amination for the synthesis of benzimidazoles was developed. This electrosynthesis method could address the limitations of the C(sp3)-H intramolecular amination synthesis reaction and provide novel access to obtain 1,2-disubstituted benzimidazoles without transition metals and oxidants. Under undivided electrolytic conditions, various benzimidazole derivatives could be synthesized, exhibiting functional group tolerance.
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Affiliation(s)
- An Li
- Province Key Laboratory for Fine Petrochemical Catalysis and Separation, College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414000, P. R. China
| | - Caohui Li
- Province Key Laboratory for Fine Petrochemical Catalysis and Separation, College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414000, P. R. China
| | - Tao Yang
- Province Key Laboratory for Fine Petrochemical Catalysis and Separation, College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414000, P. R. China
| | - Zan Yang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Yu Liu
- Province Key Laboratory for Fine Petrochemical Catalysis and Separation, College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414000, P. R. China
| | - LiJun Li
- Province Key Laboratory for Fine Petrochemical Catalysis and Separation, College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414000, P. R. China
| | - KeWen Tang
- Province Key Laboratory for Fine Petrochemical Catalysis and Separation, College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414000, P. R. China
| | - Congshan Zhou
- Province Key Laboratory for Fine Petrochemical Catalysis and Separation, College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414000, P. R. China
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6
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Devi S, Jyoti, Kiran, Wadhwa D, Sindhu J. Electro-organic synthesis: an environmentally benign alternative for heterocycle synthesis. Org Biomol Chem 2022; 20:5163-5229. [PMID: 35730661 DOI: 10.1039/d2ob00572g] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Heterocyclic compounds are considered to be one of the most established structural classes due to their extensive application in agrochemicals, pharmaceuticals and organic materials. Over the past few years, the development of heterocyclic compounds has gone through a considerable renaissance from conventional traditional methodologies to non-conventional electro-organic synthesis. Replacing metal catalysts, strong oxidants and multi-step methodologies with metal and strong oxidant-free single-step protocols has revolutionized the field of sustainable organic synthesis. Electro-organic synthesis has evolved as a scalable and sustainable approach in different synthetic protocols in an environment-benign manner. The current review outlines the recent developments in C-C, C-N, C-S and C-O/Se bond formation for heterocycle synthesis using electrochemical methods. Different synthetic strategies and their detailed mechanistic description are presented to enlighten the future applications of electrochemistry in heterocycle synthesis.
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Affiliation(s)
- Suman Devi
- Department of Chemistry, Chaudhary Bansi Lal university, Bhiwani-127021, India.
| | - Jyoti
- Department of Chemistry, Chaudhary Bansi Lal university, Bhiwani-127021, India.
| | - Kiran
- Department of Chemistry, COBS&H, CCSHAU, Hisar-125004, India.
| | - Deepak Wadhwa
- Department of Chemistry, Chaudhary Bansi Lal university, Bhiwani-127021, India.
| | - Jayant Sindhu
- Department of Chemistry, COBS&H, CCSHAU, Hisar-125004, India.
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7
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External oxidant-free and transition metal-free synthesis of 5-amino-1,2,4-thiadiazoles as promising antibacterials against ESKAPE pathogen strains. Mol Divers 2022; 27:651-666. [PMID: 35639224 DOI: 10.1007/s11030-022-10445-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/18/2022] [Indexed: 10/18/2022]
Abstract
A new route to 5-amino-1,2,4-thiadiazole derivatives via reaction of N-chloroamidines with isothiocyanates has been proposed. The advantages of this method are high product yields (up to 93%), the column chromatography-free workup procedure, scalability and the absence of additive oxidizing agents or transition metal catalysts. The 28 examples of 5-amino-1,2,4-thiadiazole derivatives obtaining via the proposing protocol were evaluated in vitro against ESKAPE pathogens strains (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, Enterobacter cloacae). It was found that compounds 5ba, 5bd, 6a, 6d and 6c have potent antibacterial activity (MIC values 0.09-1.5 μg mL-1), which is superior to the activity of commercial antibiotics such as pefloxacin (MIC 4-8 μg mL-1) and streptomycin (MIC 2-32 μg mL-1). The additional cytotoxic assay of hit compounds on PANC-1 cell line demonstrated the low or non-cytotoxicity activity at the same level of concentrations. Thus, these 5 compounds are promising starting point for further antimicrobial drug development.
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8
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Murray PD, Cox JH, Chiappini ND, Roos CB, McLoughlin EA, Hejna BG, Nguyen ST, Ripberger HH, Ganley JM, Tsui E, Shin NY, Koronkiewicz B, Qiu G, Knowles RR. Photochemical and Electrochemical Applications of Proton-Coupled Electron Transfer in Organic Synthesis. Chem Rev 2022; 122:2017-2291. [PMID: 34813277 PMCID: PMC8796287 DOI: 10.1021/acs.chemrev.1c00374] [Citation(s) in RCA: 154] [Impact Index Per Article: 77.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Indexed: 12/16/2022]
Abstract
We present here a review of the photochemical and electrochemical applications of multi-site proton-coupled electron transfer (MS-PCET) in organic synthesis. MS-PCETs are redox mechanisms in which both an electron and a proton are exchanged together, often in a concerted elementary step. As such, MS-PCET can function as a non-classical mechanism for homolytic bond activation, providing opportunities to generate synthetically useful free radical intermediates directly from a wide variety of common organic functional groups. We present an introduction to MS-PCET and a practitioner's guide to reaction design, with an emphasis on the unique energetic and selectivity features that are characteristic of this reaction class. We then present chapters on oxidative N-H, O-H, S-H, and C-H bond homolysis methods, for the generation of the corresponding neutral radical species. Then, chapters for reductive PCET activations involving carbonyl, imine, other X═Y π-systems, and heteroarenes, where neutral ketyl, α-amino, and heteroarene-derived radicals can be generated. Finally, we present chapters on the applications of MS-PCET in asymmetric catalysis and in materials and device applications. Within each chapter, we subdivide by the functional group undergoing homolysis, and thereafter by the type of transformation being promoted. Methods published prior to the end of December 2020 are presented.
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Affiliation(s)
- Philip
R. D. Murray
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - James H. Cox
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Nicholas D. Chiappini
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Casey B. Roos
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | | | - Benjamin G. Hejna
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Suong T. Nguyen
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Hunter H. Ripberger
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Jacob M. Ganley
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Elaine Tsui
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Nick Y. Shin
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Brian Koronkiewicz
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Guanqi Qiu
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Robert R. Knowles
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
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9
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Cao X, Zheng Z, Liu J, Hu Y, Yu H, Cai S, Wang G. H
2
O
2
‐Mediated Synthesis of 1,2,4‐Thiadiazole Derivatives in Ethanol at Room Temperature. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Xian‐Ting Cao
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Zuo‐Ling Zheng
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Jie Liu
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Yu‐He Hu
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Hao‐Yun Yu
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Shasha Cai
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Guannan Wang
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
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10
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Yuan Y, Liu X, Hu J, Wang P, Wang S, Alhumade H, Lei A. Electrochemical Oxidative N-H/P-H Cross-Coupling with H2 Evolution towards the Synthesis of Tertiary Phosphines. Chem Sci 2022; 13:3002-3008. [PMID: 35382477 PMCID: PMC8905962 DOI: 10.1039/d1sc07248j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/11/2022] [Indexed: 11/21/2022] Open
Abstract
Tertiary phosphines(iii) find widespread use in many aspects of synthetic organic chemistry. Herein, we developed a facile and novel electrochemical oxidative N–H/P–H cross-coupling method, leading to a series of expected tertiary phosphines(iii) under mild conditions with excellent yields. It is worth noting that this electrochemical protocol features very good reaction selectivity, where only a 1 : 1 ratio of amine and phosphine was required in the reaction. Moreover, this electrochemical protocol proved to be practical and scalable. Mechanistic insights suggested that the P radical was involved in this reaction. A facile and novel electrochemical oxidative N–H/P–H cross-coupling method for obtaining tertiary phosphines(iii) was developed.![]()
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Affiliation(s)
- Yong Yuan
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University Nanchang 330022 P. R. China
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 P. R. China
- College of Chemistry and Chemical Engineering, Northwest Normal University Lanzhou Gansu 730070 China
| | - Xue Liu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University Nanchang 330022 P. R. China
| | - Jingcheng Hu
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 P. R. China
| | - Pengjie Wang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 P. R. China
| | - Shengchun Wang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 P. R. China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University Nanchang 330022 P. R. China
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 P. R. China
- King Abdulaziz University Jeddah 21589 Saudi Arabia
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11
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Shukla G, Saha P, Pali P, Raghuvanshi K, Singh MS. Electrochemical Synthesis of 1,2,3-Thiadiazoles from α-Phenylhydrazones. J Org Chem 2021; 86:18004-18016. [PMID: 34818010 DOI: 10.1021/acs.joc.1c02275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have developed an electrochemical approach for the synthesis of fully substituted 1,2,3-thiadiazoles from α-phenylhydrazones at room temperature, which is very challenging and complementary to the conventional thermal reactions. The key step involves anodic oxidation of phenylhydrazone derivatives at a constant current followed by N,S-heterocyclization. The protocol is remarkable in that it is free of a base and free of an external oxidant and can be converted to a gram scale for postsynthetic drug development with functional thiadiazoles. Most importantly, the electrochemical transformation reflected efficient electro-oxidation with an operationally friendly easy procedure with ample functional molecules. Cyclic voltammograms support the mechanism of this electro-oxidative cyclization process.
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Affiliation(s)
- Gaurav Shukla
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Priya Saha
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Pragya Pali
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Keshav Raghuvanshi
- Chemical Oceanography Division, CSIR-National Institute of Oceanography, Dona Paula, Goa 403004, India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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12
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Zhang Y, Gao H, Guo J, Zhang H, Yao X. Selective electrochemical para-thiocyanation of aromatic amines under metal-, oxidant- and exogenous-electrolyte-free conditions. Chem Commun (Camb) 2021; 57:13166-13169. [PMID: 34812816 DOI: 10.1039/d1cc05208j] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An electrochemical oxidative para-C-H-thiocyanation of aromatic amines has been developed to construct thiocyanato aromatic compounds under metal-, oxidant-, and exogenous-electrolyte-free conditions in an undivided cell. The transformation is compatible with a range of primary, secondary, and tertiary amines and shows good functional group tolerance. This approach provides an economical and environmentally benign way for para-thiocyanation of aromatic amines.
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Affiliation(s)
- Ying Zhang
- Department of Applied Chemistry, School of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China.
| | - Huanjie Gao
- Department of Applied Chemistry, School of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China.
| | - Jiabao Guo
- Department of Applied Chemistry, School of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China.
| | - Hao Zhang
- Department of Applied Chemistry, School of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China.
| | - Xiaoquan Yao
- Department of Applied Chemistry, School of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China.
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13
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Yuan Y, Yang J, Lei A. Recent advances in electrochemical oxidative cross-coupling with hydrogen evolution involving radicals. Chem Soc Rev 2021; 50:10058-10086. [PMID: 34369504 DOI: 10.1039/d1cs00150g] [Citation(s) in RCA: 129] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Oxidative cross-coupling has developed into a robust method for carbon-carbon (C-C), carbon-heteroatom (C-X), and heteroatom-heteroatom (X-Y) bond formation. Despite considerable advances in this field, the traditional oxidative cross-coupling reactions usually employ stoichiometric amounts of chemical oxidants to clean up surplus electrons from substrates to form new chemical bonds. Organic electrosynthesis is recognized as an environmentally benign and particularly powerful synthetic platform. Recent advancements have revealed that radical-involved electrochemical oxidative cross-coupling reactions can be achieved under exogenous-oxidant-free conditions. This tutorial review provides an overview of the most recent developments in electrochemical oxidative cross-coupling with hydrogen evolution involving radicals. Emphasis is mainly placed on synthetic and mechanistic aspects. We hope that this tutorial review can promote the development of radical chemistry, electrochemistry, and oxidative cross-coupling reactions.
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Affiliation(s)
- Yong Yuan
- Gansu International Scientific and Technological Cooperation Base of Water Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
| | - Jie Yang
- Gansu International Scientific and Technological Cooperation Base of Water Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, P. R. China.
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14
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Heravi MM, Abedian‐Dehaghani N, Zadsirjan V, Rangraz Y. Catalytic Function of Cu (I) and Cu (II) in Total Synthesis of Alkaloids. ChemistrySelect 2021. [DOI: 10.1002/slct.202101130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Majid M. Heravi
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
| | - Neda Abedian‐Dehaghani
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
| | - Vahideh Zadsirjan
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
| | - Yalda Rangraz
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
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15
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Wei Z, Wang R, Zhang Y, Wang B, Xia Y, Abdukader A, Xue F, Jin W, Liu C. Electrochemical Direct Thiolation of Lactams with Mercaptans: An Efficient Access to
N
‐Acylsulfenamides. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Zhaoxin Wei
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uygur Autonomous Region State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 P. R. China
| | - Renjie Wang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uygur Autonomous Region State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 P. R. China
| | - Yonghong Zhang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uygur Autonomous Region State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 P. R. China
| | - Bin Wang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uygur Autonomous Region State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 P. R. China
| | - Yu Xia
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uygur Autonomous Region State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 P. R. China
| | - Ablimit Abdukader
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uygur Autonomous Region State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 P. R. China
| | - Fei Xue
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uygur Autonomous Region State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 P. R. China
| | - Weiwei Jin
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uygur Autonomous Region State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 P. R. China
| | - Chenjiang Liu
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uygur Autonomous Region State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 P. R. China
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16
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Zhong Q, Xiong Z, Sheng S, Chen J. Electrochemical synthesis for benzisothiazol-3(2H)-ones by dehydrogenative N S bond formation. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Qian P, Zhou Z, Wang L, Wang Z, Wang Z, Zhang Z, Sheng L. Electrosynthesis of 2-(1,3,4-Oxadiazol-2-yl)aniline Derivatives with Isatins as Amino-Attached C1 Sources. J Org Chem 2020; 85:13029-13036. [DOI: 10.1021/acs.joc.0c01700] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Peng Qian
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang, Anhui 236037, P. R. China
| | - Zhenghong Zhou
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Li Wang
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang, Anhui 236037, P. R. China
| | - Zhicheng Wang
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang, Anhui 236037, P. R. China
| | - Zhongwei Wang
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang, Anhui 236037, P. R. China
| | - Zhenlei Zhang
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang, Anhui 236037, P. R. China
| | - Liangquan Sheng
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Fuyang Normal University, Fuyang, Anhui 236037, P. R. China
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18
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Anstis DG, Lindsay AC, Söhnel T, Sperry J. Synthesis of the 1,2,4-Thiadiazole Alkaloid Polyaurine B. JOURNAL OF NATURAL PRODUCTS 2020; 83:1721-1724. [PMID: 32297745 DOI: 10.1021/acs.jnatprod.0c00166] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A short synthesis of the natural product polyaurine B is described. The 1,2,4-thiadiazole heterocycle was assembled using a Cu(II)-mediated heterocyclization reaction that forges the N-S bond. The final acylation step to install the methylcarbamate must be conducted under anhydrous, nonbasic conditions to prevent thiadiazole ring opening initiated by attack of hydroxide at C-5.
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Affiliation(s)
- Daniel G Anstis
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
| | - Ashley C Lindsay
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
| | - Tilo Söhnel
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
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19
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Sbei N, Titov AA, Markova EB, Elinson MN, Voskressensky LG. A Facile One‐Pot Synthesis of 1,2,3,4‐Tetrahydroisoquinoline‐1‐carbonitriles via the Electrogenerated Cyanide Anions from Acetonitrile. ChemistrySelect 2020. [DOI: 10.1002/slct.202000869] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Najoua Sbei
- Research Center: Molecular Design and Synthesis of Innovative Compounds for MedicinePeoples' Friendship University of Russia(RUDN University) 117198 Russia Moscow, Miklukho-Maklaya st https://twitter.com/UniversityRudn
| | - Alexander A. Titov
- Research Center: Molecular Design and Synthesis of Innovative Compounds for MedicinePeoples' Friendship University of Russia(RUDN University) 117198 Russia Moscow, Miklukho-Maklaya st https://twitter.com/UniversityRudn
| | - Ekaterina B. Markova
- Physical and Colloidal Chemistry DepartmentRUDN University Peoples' Friendship University of Russia (RUDN University) 117198 Russia Moscow, Miklukho-Maklaya st
| | - Michail N. Elinson
- N. D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences Moscow Russian Federation Leninsky Prospect, 47, Moscow
| | - Leonid G. Voskressensky
- Research Center: Molecular Design and Synthesis of Innovative Compounds for MedicinePeoples' Friendship University of Russia(RUDN University) 117198 Russia Moscow, Miklukho-Maklaya st https://twitter.com/UniversityRudn
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20
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Yang Z, Zhang J, Hu L, Li A, Li L, Liu K, Yang T, Zhou C. Electrochemical HI-mediated Intermolecular C–N Bond Formation to Synthesize Imidazoles from Aryl Ketones and Benzylamines. J Org Chem 2020; 85:5952-5958. [DOI: 10.1021/acs.joc.0c00316] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zan Yang
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Jiaqi Zhang
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Liping Hu
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - An Li
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Lijun Li
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Kun Liu
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Tao Yang
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Congshan Zhou
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
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21
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Shimada K, Isogami M, Maeda K, Nishinomiya R, Korenaga T. Convenient Synthesis of 2,3-Dihydro-1,2,4-thiadiazoles, 4,5-Dihydro-1,3-thiazoles, and 1,3-Thiazoles through a [4+1]-Type Oxidative Ring Closure of 1,3-Thiaza-1,3-butadienes. HETEROCYCLES 2020. [DOI: 10.3987/com-20-14244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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