1
|
Li B, Liao X, Wen L, Mi M, Xing X, Feng P, Xu S. Electrochemically Direct Fluorination Functionalization of Styrenes with Different Fluorine Source: Access to Fluoroalkyl Derivatives. J Org Chem 2024; 89:9440-9449. [PMID: 38875179 DOI: 10.1021/acs.joc.4c00722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2024]
Abstract
A mild protocol for electrochemically oxidative fluorodifunctionalization of styrenes has been demonstrated. The reaction proceeds under metal, external oxidant, and catalyst free conditions, allowing tunable access to a wide variety of synthetically useful fluoroalkyl derivatives, such as β-fluorosulfone/fluoromethyl, fluorothiocyanation, and vinylsulfonyl derivatives. Moreover, CsF was shown to be the proper fluorine source for this electrochemical fluorodifunctionalization transformation.
Collapse
Affiliation(s)
- Boao Li
- Department of Chemistry, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Xiaojian Liao
- Department of Chemistry, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Linzi Wen
- Department of Chemistry, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Mengyao Mi
- Department of Chemistry, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Xiwen Xing
- Department of Chemistry, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Pengju Feng
- Department of Chemistry, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Shihai Xu
- Department of Chemistry, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| |
Collapse
|
2
|
Martins GM, Braga FC, de Castro PP, Brocksom TJ, de Oliveira KT. Continuous flow reactions in the preparation of active pharmaceutical ingredients and fine chemicals. Chem Commun (Camb) 2024; 60:3226-3239. [PMID: 38441166 DOI: 10.1039/d4cc00418c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Herein, we present an overview of continuous flow chemistry, including photoflow and electroflow technologies in the preparation of active pharmaceutical ingredients (APIs) and fine chemical intermediates. Examples highlighting the benefits and challenges associated with continuous flow processes, mainly involving continuous thermal, photo- and electrochemical transformations, are drawn from the relevant literature, especially our experience and collaborations in this area, with emphasis on the synthesis and prospective scale-up.
Collapse
Affiliation(s)
- Guilherme M Martins
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil.
| | - Felipe C Braga
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil.
| | - Pedro P de Castro
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil.
| | - Timothy J Brocksom
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil.
| | - Kleber T de Oliveira
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil.
| |
Collapse
|
3
|
Wu HZ, Teng ZS, Ke YX, Zou Y, Gao P, Li Y, Zhou CH, Zang ZL. Electrochemical trifluoroalkylation/annulation for the synthesis of CF 3-functionalized tetrahydroquinolines and dihydroquinolinones. Org Biomol Chem 2023; 21:8579-8583. [PMID: 37853839 DOI: 10.1039/d3ob00987d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Tuning the electronic structure of protecting groups on the nitrogen atom of substrates has emerged as an effective strategy to achieve the tandem trifluoromethylation/C(sp2)-H annulation using Langlois' reagent as the CF3 source for the electrochemical synthesis of functionalized tetrahydroquinolines and dihydroquinolinones.
Collapse
Affiliation(s)
- Hao-Zeng Wu
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Zhong-Shan Teng
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Yu-Xin Ke
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Yu Zou
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Ping Gao
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Yue Li
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Zhong-Lin Zang
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| |
Collapse
|
4
|
Luan S, Castanheiro T, Poisson T. Electrochemical Synthesis of Iodohydrins. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
5
|
Claraz A, Masson G. Recent Advances in C(sp 3)-C(sp 3) and C(sp 3)-C(sp 2) Bond Formation through Cathodic Reactions: Reductive and Convergent Paired Electrolyses. ACS ORGANIC & INORGANIC AU 2022; 2:126-147. [PMID: 36855458 PMCID: PMC9954344 DOI: 10.1021/acsorginorgau.1c00037] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
The formation of C(sp3)-C(sp3) and C(sp3)-C(sp2) bonds is one of the major research goals of synthetic chemists. Electrochemistry is commonly considered to be an appealing means to drive redox reactions in a safe and sustainable fashion and has been utilized for C-C bond-forming reactions. Compared to anodic oxidative methods, which have been extensively explored, cathodic processes are much less investigated, whereas it can pave the way to alternative retrosynthetic disconnections of target molecules and to the discovery of new transformations. This review provides an overview on the recent achievements in the construction of C(sp3)-C(sp3) and C(sp3)-C(sp2) bonds via cathodic reactions since 2017. It includes electrochemical reductions and convergent paired electrolyses.
Collapse
Affiliation(s)
- Aurélie Claraz
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, 1, av. de la Terrasse, Gif-sur-Yvette 91198 Cedex, France
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, 1, av. de la Terrasse, Gif-sur-Yvette 91198 Cedex, France
| |
Collapse
|
6
|
A green protocol for the electrochemical synthesis of a fluorescent dye with antibacterial activity from imipramine oxidation. Sci Rep 2022; 12:4921. [PMID: 35318352 PMCID: PMC8941072 DOI: 10.1038/s41598-022-08770-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 03/02/2022] [Indexed: 12/31/2022] Open
Abstract
Electrochemical oxidation of imipramine (IMP) has been studied in aqueous solutions by cyclic voltammetry and controlled-potential coulometry techniques. Our voltammetric results show a complex behavior for oxidation of IMP at different pH values. In this study, we focused our attention on the electrochemical oxidation of IMP at a pH of about 5. Under these conditions, our results show that the oxidation of IMP leads to the formation of a unique dimer of IMP (DIMP). The structure of synthesized dimer is fully characterized by UV-visible, FTIR, 1H NMR, 13C NMR and mass spectrometry techniques. It seems that the first step in the oxidation of IMP is the cleavage of the alkyl group (formation of IMPH). After this, a domino oxidation-hydroxylation-dimerization-oxidation reaction, converts IMPH to (E)-10,10',11,11'-tetrahydro-[2,2'-bidibenzo[b,f]azepinylidene]-1,1'(5H,5'H)-dione (DIMP). The synthesis of DIMP is performed in an aqueous solution under mild conditions, without the need for any catalyst or oxidant. Based on our electrochemical findings as well as the identification of the final product, a possible reaction mechanism for IMP oxidation has been proposed. Conjugated double bonds in the DIMP structure cause the compound to become colored with sufficient fluorescence activity (excitation wave-length 535 nm and emission wave-length 625 nm). Moreover, DIMP has been evaluated for in vitro antibacterial. The antibacterial tests indicated that DIMP showed good antibacterial performance against all examined gram-positive and gram-negative bacteria (Staphylococcus aureus, Bacillus cereus, Escherichia coli and Shigella sonnei).
Collapse
|
7
|
Pokhrel T, B K B, Giri R, Adhikari A, Ahmed N. C-H Bond Functionalization under Electrochemical Flow Conditions. CHEM REC 2022; 22:e202100338. [PMID: 35315954 DOI: 10.1002/tcr.202100338] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 01/12/2023]
Abstract
Electrochemical C-H functionalization is a rapidly growing area of interest in organic synthesis. To achieve maximum atom economy, the flow electrolysis process is more sustainable. This allows shorter reaction times, safer working environments, and better selectivities. Using this technology, the problem of overoxidation can be reduced and less emergence of side products or no side products are possible. Flow electro-reactors provide high surface-to-volume ratios and contain electrodes that are closely spaced where the diffusion layers overlap to give the desired product, electrochemical processes can now be managed without the need for a deliberately added supporting electrolyte. Considering the importance of flow electrochemical C-H functionalization, a comprehensive review is presented. Herein, we summarize flow electrolysis for the construction of C-C and C-X (X=O, N, S, and I) bonds formation. Also, benzylic oxidation and access to biologically active molecules are discussed.
Collapse
Affiliation(s)
- Tamlal Pokhrel
- Central Department of Chemistry, Tribhuvan University, Kirtipur, 44618, Kathmandu, Nepal
| | - Bijaya B K
- Central Department of Chemistry, Tribhuvan University, Kirtipur, 44618, Kathmandu, Nepal
| | - Ramesh Giri
- Central Department of Chemistry, Tribhuvan University, Kirtipur, 44618, Kathmandu, Nepal
| | - Achyut Adhikari
- Central Department of Chemistry, Tribhuvan University, Kirtipur, 44618, Kathmandu, Nepal
| | - Nisar Ahmed
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom
| |
Collapse
|
8
|
Ramani A, Desai B, Patel M, Naveen T. Recent advances in the functionalization of terminal and internal alkynes. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Arti Ramani
- Sardar Vallabhbhai National Institute of Technology Department of chemistry INDIA
| | - Bhargav Desai
- Sardar Vallabhbhai National Institute of Technology Department of chemistry INDIA
| | - Monak Patel
- Sardar Vallabhbhai National Institute of Technology Department of chemistry INDIA
| | - Togati Naveen
- SVNIT Surat: Sardar Vallabhbhai National Institute of Technology Applied Chemistry Room No: 115, Applied Chemistry DepartmentSVNIT Surat 395007 SURAT INDIA
| |
Collapse
|
9
|
Murtaza A, Qamar MA, Saleem K, Hardwick T, Zia Ul Haq, Shirinfar B, Ahmed N. Renewable Electricity Enables Green Routes to Fine Chemicals and Pharmaceuticals. CHEM REC 2022; 22:e202100296. [PMID: 35103382 DOI: 10.1002/tcr.202100296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/05/2022] [Accepted: 01/07/2022] [Indexed: 12/29/2022]
Abstract
Syntheses of chemicals using renewable electricity and when generating high atom economies are considered green and sustainable processes. In the present state of affairs, electrochemical manufacturing of fine chemicals and pharmaceuticals is not as common place as it could be and therefore, merits more attention. There is also a need to turn attention toward the electrochemical synthesis of valuable chemicals from recyclable greenhouse gases that can accelerate the process of circular economy. CO2 emissions are the major contributor to human-induced global warming. CO2 conversion into chemicals is a valuable application of its utilisation and will contribute to circular economy while maintaining environmental sustainability. Herein, we present an overview of electro-carboxylation, including mechanistic aspects, which forms carboxylic acids using molecular carbon dioxide. We also discuss atom economies of electrochemical fluorination, methoxylation and amide formation reactions.
Collapse
Affiliation(s)
- Ayesha Murtaza
- Department of Chemistry, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, 64200, Pakistan
| | - Muhammad Awais Qamar
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, Gansu, China
| | - Kaynat Saleem
- Department of Chemistry, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, 64200, Pakistan
| | - Tomas Hardwick
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK.,National Graphene Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.,Department of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Zia Ul Haq
- Chemical Engineering department, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, 64200, Pakistan
| | | | - Nisar Ahmed
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| |
Collapse
|
10
|
Tay NES, Lehnherr D, Rovis T. Photons or Electrons? A Critical Comparison of Electrochemistry and Photoredox Catalysis for Organic Synthesis. Chem Rev 2022; 122:2487-2649. [PMID: 34751568 PMCID: PMC10021920 DOI: 10.1021/acs.chemrev.1c00384] [Citation(s) in RCA: 131] [Impact Index Per Article: 65.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Redox processes are at the heart of synthetic methods that rely on either electrochemistry or photoredox catalysis, but how do electrochemistry and photoredox catalysis compare? Both approaches provide access to high energy intermediates (e.g., radicals) that enable bond formations not constrained by the rules of ionic or 2 electron (e) mechanisms. Instead, they enable 1e mechanisms capable of bypassing electronic or steric limitations and protecting group requirements, thus enabling synthetic chemists to disconnect molecules in new and different ways. However, while providing access to similar intermediates, electrochemistry and photoredox catalysis differ in several physical chemistry principles. Understanding those differences can be key to designing new transformations and forging new bond disconnections. This review aims to highlight these differences and similarities between electrochemistry and photoredox catalysis by comparing their underlying physical chemistry principles and describing their impact on electrochemical and photochemical methods.
Collapse
Affiliation(s)
- Nicholas E S Tay
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Dan Lehnherr
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Tomislav Rovis
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| |
Collapse
|
11
|
Li W, Xiong M, Liang X, Wang D, Zhu H, Pan Y. An Electrochemical Way to Generate Amphiphiles from Hydrazones for the Synthesis of 1,2,4-Triazole Scaffold Cyclic Compounds. ChemistryOpen 2022; 11:e202100268. [PMID: 35083886 PMCID: PMC8792120 DOI: 10.1002/open.202100268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/19/2021] [Indexed: 11/21/2022] Open
Abstract
An electro-oxidative cyclization pathway in which hydrazones are selected as starting materials to generate amphiphiles by reacting with benzylamines and benzamides was reported. This strategy successfully prepared a series of 1,2,4-triazoles in satisfactory yields. Moreover, the use of cheap stainless steel as the anode, the feasibility to conduct the transformation as a one-pot reaction and the proof that scaling-up these reactions is possible make this transformation attractive for potential application in industry.
Collapse
Affiliation(s)
- Wangyu Li
- Department of ChemistryZhejiang UniversityHangzhou310027China
| | - Mingteng Xiong
- Department of ChemistryZhejiang UniversityHangzhou310027China
| | - Xiao Liang
- Department of ChemistryZhejiang UniversityHangzhou310027China
- Zhejiang Yangshengtang Natural Medicine InstituteHangzhou310027China
| | - Dungai Wang
- Department of ChemistryZhejiang UniversityHangzhou310027China
| | - Heping Zhu
- Department of ChemistryZhejiang UniversityHangzhou310027China
| | - Yuanjiang Pan
- Department of ChemistryZhejiang UniversityHangzhou310027China
| |
Collapse
|
12
|
Paveliev SA, Segida OO, Dvoretskiy A, Dzyunov MM, Fedorova UV, Terent'ev AO. Electrifying Phthalimide- N-Oxyl (PINO) Radical Chemistry: Anodically Induced Dioxygenation of Vinyl Arenes with N-Hydroxyphthalimide. J Org Chem 2021; 86:18107-18116. [PMID: 34878276 DOI: 10.1021/acs.joc.1c02367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An electrochemical process of free-radical difunctionalization of vinyl arenes with N-hydroxyphthalimide resulting in vicinal dioxyphthalimides was discovered. The reaction proceeds with the use of pyridinium perchlorate and pyridine as a supporting electrolyte and a base, respectively. The present approach involves the anodic generation of stabilized phthalimide-N-oxyl (PINO) radical, which adds to the carbon-carbon double bond of vinyl arenes and recombines with the subsequently formed benzylic radical. A wide range of dioxyphthalimides were obtained in yields up to 81%.
Collapse
Affiliation(s)
- Stanislav A Paveliev
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Prospect, Moscow 119991, Russian Federation
| | - Oleg O Segida
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Prospect, Moscow 119991, Russian Federation
| | - Andrey Dvoretskiy
- D. I. Mendeleev University of Chemical Technology of Russia, 9 Miusskaya Square, Moscow 125047, Russian Federation
| | - Mark M Dzyunov
- Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, Moscow 119991, Russian Federation
| | - Uliana V Fedorova
- D. I. Mendeleev University of Chemical Technology of Russia, 9 Miusskaya Square, Moscow 125047, Russian Federation
| | - Alexander O Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Prospect, Moscow 119991, Russian Federation
| |
Collapse
|
13
|
Malapit CA, Prater MB, Cabrera-Pardo JR, Li M, Pham TD, McFadden TP, Blank S, Minteer SD. Advances on the Merger of Electrochemistry and Transition Metal Catalysis for Organic Synthesis. Chem Rev 2021; 122:3180-3218. [PMID: 34797053 DOI: 10.1021/acs.chemrev.1c00614] [Citation(s) in RCA: 101] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Synthetic organic electrosynthesis has grown in the past few decades by achieving many valuable transformations for synthetic chemists. Although electrocatalysis has been popular for improving selectivity and efficiency in a wide variety of energy-related applications, in the last two decades, there has been much interest in electrocatalysis to develop conceptually novel transformations, selective functionalization, and sustainable reactions. This review discusses recent advances in the combination of electrochemistry and homogeneous transition-metal catalysis for organic synthesis. The enabling transformations, synthetic applications, and mechanistic studies are presented alongside advantages as well as future directions to address the challenges of metal-catalyzed electrosynthesis.
Collapse
Affiliation(s)
- Christian A Malapit
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Matthew B Prater
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Jaime R Cabrera-Pardo
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Min Li
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Tammy D Pham
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Timothy Patrick McFadden
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Skylar Blank
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Shelley D Minteer
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| |
Collapse
|
14
|
He Y, Qin X, He X, Wu X, Yin Z. Practical Synthesis of Halogenated
N
‐Heterocycles via Electrochemical Anodic Oxidation of Unactivated Alkenes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101189] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yanyang He
- School of Pharmacy Jiangsu University Zhenjiang 212013 P. R. China
| | - Xiaowen Qin
- School of Pharmacy Jiangsu University Zhenjiang 212013 P. R. China
| | - Xinxu He
- School of Pharmacy Jiangsu University Zhenjiang 212013 P. R. China
| | - Xiao‐Feng Wu
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Science 116023 Dalian Liaoning China
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Zhiping Yin
- School of Pharmacy Jiangsu University Zhenjiang 212013 P. R. China
| |
Collapse
|
15
|
Ye Z, Zhu R, Wang F, Jiang H, Zhang F. Electrochemical Difunctionalization of Styrenes via Chemoselective Oxo-Azidation or Oxo-Hydroxyphthalimidation. Org Lett 2021; 23:8240-8245. [PMID: 34697944 DOI: 10.1021/acs.orglett.1c02991] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Atom- and step-economic oxo-azidation and oxo-hydroxyphthalimidation of styrenes have been developed under mild electrolytic conditions, respectively. Various valuable alpha-azido or hydroxyphthalimide aromatic ketones were synthesized efficiently from readily available styrenes, azides, and N-hydroxyphthalimides. Mechanism studies show that two different pathways involved in these two transformations.
Collapse
Affiliation(s)
- Zenghui Ye
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Rongjin Zhu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Feng Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Haobin Jiang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Fengzhi Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| |
Collapse
|
16
|
Halder A, Mahanty K, Maiti D, De Sarkar S. Highly Diastereoselective Synthesis of Dihydro-benzoimidazo-[1,3]-thiazines via Electro-oxidative Selenocyclization of Thioallyl Benzoimidazoles. Chem Asian J 2021; 16:3895-3899. [PMID: 34609085 DOI: 10.1002/asia.202101033] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/02/2021] [Indexed: 11/10/2022]
Abstract
The current methodology reveals a green and proficient electro-oxidative tandem selenocyclization of thioallyl benzoimidazoles manufacturing selenylated dihydro-benzoimidazo-thiazine derivatives. Both C-Se and C-N bond formation were achieved via this mild protocol which exhibits good functional group tolerability affording an extensive range of substrate scope up to 96% isolated yields. Complete control over the regioselective formation of the six-membered heterocycle and stereoselective construction of the contiguous stereocenters was established. The practical electrochemical method operates in an undivided cell at ambient temperature without using any metal and external chemical oxidant.
Collapse
Affiliation(s)
- Atreyee Halder
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Kingshuk Mahanty
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Debabrata Maiti
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Suman De Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| |
Collapse
|
17
|
Dai C, Shen Y, Wei Y, Liu P, Sun P. Electrochemical Oxidative Difunctionalization of Alkenes to Access α-Oxygenated Ketones. J Org Chem 2021; 86:13711-13719. [PMID: 34523934 DOI: 10.1021/acs.joc.1c01831] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Dioxygenation of alkenes was developed by the combination of electrochemical synthesis and aerobic oxidation, leading to easy accessibility of α-oxygenated ketones in an eco-friendly fashion. Using air as the oxygen source and the absence of transition metals were the critical features of this protocol. A wide range of alkenes and N-hydroxyimides were found to be compatible and provided α-oxygenated ketones in moderate to high yields.
Collapse
Affiliation(s)
- Changhui Dai
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Yijie Shen
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Yifan Wei
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Ping Liu
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Peipei Sun
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| |
Collapse
|
18
|
Thadathil DA, Varghese A, Radhakrishnan KV. The Renaissance of Electro‐Organic Synthesis for the Difunctionalization of Alkenes and Alkynes: A Sustainable Approach. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100447] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ditto Abraham Thadathil
- Department of Chemistry CHRIST (Deemed to be University) Hosur Road Bengaluru, Karnataka 560029 India
| | - Anitha Varghese
- Department of Chemistry CHRIST (Deemed to be University) Hosur Road Bengaluru, Karnataka 560029 India
| | - Kokkuvayil Vasu Radhakrishnan
- Chemical Sciences and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram 695019 India
| |
Collapse
|
19
|
Prakash N, Rajeev R, John A, Vijayan A, George L, Varghese A. 2,2,6,6‐Tetramethylpiperidinyloxyl (TEMPO) Radical Mediated Electro‐Oxidation Reactions: A Review. ChemistrySelect 2021. [DOI: 10.1002/slct.202102346] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Nishitha Prakash
- Department of Chemistry CHRIST (Deemed to be University) Hosur Road Bengaluru 560029 India
| | - Rijo Rajeev
- Department of Chemistry CHRIST (Deemed to be University) Hosur Road Bengaluru 560029 India
| | - Anjali John
- Department of Chemistry CHRIST (Deemed to be University) Hosur Road Bengaluru 560029 India
| | - Ajesh Vijayan
- Department of Chemistry CHRIST (Deemed to be University) Hosur Road Bengaluru 560029 India
| | - Louis George
- Department of Chemistry CHRIST (Deemed to be University) Hosur Road Bengaluru 560029 India
| | - Anitha Varghese
- Department of Chemistry CHRIST (Deemed to be University) Hosur Road Bengaluru 560029 India
| |
Collapse
|
20
|
Lazzaris MJ, Martins GM, Xavier FR, Braga AL, Mendes SR. Versatile Electrochemical Oxidative C(sp
2
)−H Bond Selenylation of Resveratrol. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Maika J. Lazzaris
- SINCA-Departamento de Química Universidade do Estado de Santa Catarina Joinville 89219-719 SC-Brazil
| | - Guilherme M. Martins
- Departamento de Química Universidade Federal de Santa Catarina Florianópolis 88040-900 SC-Brazil
| | - Fernando R. Xavier
- SINCA-Departamento de Química Universidade do Estado de Santa Catarina Joinville 89219-719 SC-Brazil
| | - Antonio L. Braga
- Departamento de Química Universidade Federal de Santa Catarina Florianópolis 88040-900 SC-Brazil
| | - Samuel R. Mendes
- SINCA-Departamento de Química Universidade do Estado de Santa Catarina Joinville 89219-719 SC-Brazil
| |
Collapse
|
21
|
Shimakoshi H, Hisaeda Y. Bioinspired Electrolysis for Green Molecular Transformations of Organic Halides Catalyzed by B 12 Complex. CHEM REC 2021; 21:2080-2094. [PMID: 34075694 DOI: 10.1002/tcr.202100077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 12/27/2022]
Abstract
Naturally-occurring B12 -dependent enzymes catalyze various molecular transformations that are of particular interest from the viewpoint of biological chemistry as well as synthetic organic chemistry. Inspired by the unique property of the B12 -dependent enzymes, various catalytic reactions have been developed using its model complex. Among the B12 model complexes, heptamethyl cobyrinate, synthesized from natural vitamin B12 , is highly soluble in various organic solvents and a redox active cobalt complex with an excellent catalysis in electroorganic synthesis. The electrochemical dechlorination of pollutant organic chlorides, such as DDT, was effectively catalyzed by the B12 complex. Modification of the electrode surface by the sol-gel method to immobilize the B12 complex was also developed. The B12 modified electrodes were effective for the dehalogenation of organic halides with high turnover numbers based on the immobilized B12 complex. Electrolysis of an organic halide catalyzed by the B12 complex provided dechlorinated products under anaerobic conditions, while the electrolysis under aerobic conditions afforded oxygen incorporated products, such as an ester and amide along with dechlorination. Benzotrichloride was transformed into ethylbenzoate or N,N-diethylbenzamide in the presence of ethanol or diethylamine, respectively. This amide formation was further expanded to a unique paired electrolysis. Electrochemical reductions of an alkene and alkyne were also catalyzed by the B12 complex. A cobalt-hydrogen complex should be formed as a bioinspired intermediate. Using the B12 complex, light-assisted electrosynthesis was also developed to save the applied energy.
Collapse
Affiliation(s)
- Hisashi Shimakoshi
- Department of Chemistry and Biochemistry, Kyushu University, Nishi-ku Motooka 744, Fukuoka, 819-0395, Japan
| | - Yoshio Hisaeda
- Department of Chemistry and Biochemistry, Kyushu University, Nishi-ku Motooka 744, Fukuoka, 819-0395, Japan
| |
Collapse
|
22
|
Strehl J, Abraham ML, Hilt G. Lineare gepaarte Elektrolyse – Realisierung von 200 % Stromausbeute in stöchiometrischen Umsetzungen – die elektrochemische Bromierung von Alkenen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Julia Strehl
- Institut für Chemie Universität Oldenburg Carl-von-Ossietzky-Straße 9–11 26111 Oldenburg Deutschland
| | - Marvin L. Abraham
- Institut für Chemie Universität Oldenburg Carl-von-Ossietzky-Straße 9–11 26111 Oldenburg Deutschland
| | - Gerhard Hilt
- Institut für Chemie Universität Oldenburg Carl-von-Ossietzky-Straße 9–11 26111 Oldenburg Deutschland
| |
Collapse
|
23
|
Strehl J, Abraham ML, Hilt G. Linear Paired Electrolysis-Realising 200 % Current Efficiency for Stoichiometric Transformations-The Electrochemical Bromination of Alkenes. Angew Chem Int Ed Engl 2021; 60:9996-10000. [PMID: 33656769 PMCID: PMC8251945 DOI: 10.1002/anie.202016413] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/15/2021] [Indexed: 11/11/2022]
Abstract
The generation of bromine by oxidation of bromide anions at the anode and reduction of molecular oxygen at the cathode to hydrogen peroxide resulted in the overall formation of two molecules of Br2 (=four electron oxidation) by passing just two electrons through the solution. The bromine was used for the bromination of alkenes and thereby a linear paired electrolysis was attained which resulted in current efficencies of up to 200 %. Also, the diiodination of cyclohexene as well as the electrophilic aromatic bromination of an electron‐rich arene were realised both in 168 % current efficiencies.
Collapse
Affiliation(s)
- Julia Strehl
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26111, Oldenburg, Germany
| | - Marvin L Abraham
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26111, Oldenburg, Germany
| | - Gerhard Hilt
- Institut für Chemie, Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26111, Oldenburg, Germany
| |
Collapse
|
24
|
Dagar N, Sen PP, Roy SR. Electrifying Sustainability on Transition Metal-Free Modes: An Eco-Friendly Approach for the Formation of C-N Bonds. CHEMSUSCHEM 2021; 14:1229-1257. [PMID: 33373494 DOI: 10.1002/cssc.202002567] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/28/2020] [Indexed: 06/12/2023]
Abstract
Embracing sustainable green methodologies and techniques in chemical transformations has always been in the limelight to the synthetic community. Electrosynthesis has emerged as a powerful, sustainable synthetic tool for molecular synthesis exploiting inexpensive electricity in place of sacrificial chemical oxidizing/reducing reagents. Herein, recent advances in the incorporation of transition metal-free redox mediators in electrosynthesis for the construction of C-N bonds are outlined. Furthermore, conjugation of this strategy with flow catalysis allows easy scale up of the synthesis of molecular assembly. This comprehensive Review provides an overview of metal-free mediated electro-construction of C-N bonds, focusing on the reaction mechanisms involved and its synthetic applications.
Collapse
Affiliation(s)
- Neha Dagar
- Department of Chemistry, Indian Institute of Technology Delhi, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Partha Pratim Sen
- Department of Chemistry, Indian Institute of Technology Delhi, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Sudipta Raha Roy
- Department of Chemistry, Indian Institute of Technology Delhi, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| |
Collapse
|
25
|
Makhal PN, Nandi A, Kaki VR. Insights into the Recent Synthetic Advances of Organoselenium Compounds. ChemistrySelect 2021. [DOI: 10.1002/slct.202004029] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Priyanka N. Makhal
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Arijit Nandi
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Venkata Rao Kaki
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| |
Collapse
|
26
|
Guan Z, Zhu S, Wang S, Wang H, Wang S, Zhong X, Bu F, Cong H, Lei A. Electrochemical Oxidative Carbon‐Atom Difunctionalization: Towards Multisubstituted Imino Sulfide Ethers. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhipeng Guan
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 Hubei P. R. China
| | - Shuxiang Zhu
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 Hubei P. R. China
| | - Siyuan Wang
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 Hubei P. R. China
| | - Huamin Wang
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 Hubei P. R. China
| | - Siyuan Wang
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 Hubei P. R. China
| | - Xingxing Zhong
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 Hubei P. R. China
| | - Faxiang Bu
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 Hubei P. R. China
| | - Hengjiang Cong
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 Hubei P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 Hubei P. R. China
| |
Collapse
|
27
|
Guan Z, Zhu S, Wang S, Wang H, Wang S, Zhong X, Bu F, Cong H, Lei A. Electrochemical Oxidative Carbon-Atom Difunctionalization: Towards Multisubstituted Imino Sulfide Ethers. Angew Chem Int Ed Engl 2021; 60:1573-1577. [PMID: 33006414 DOI: 10.1002/anie.202011329] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/21/2020] [Indexed: 11/07/2022]
Abstract
Ethers (C-O/S) are ubiquitously found in a wide array of functional molecules and natural products. Nonetheless, the synthesis of imino sulfide ethers, containing an N(sp2 )=C(sp2 )-O/S fragment, still remains a challenge because of its sensitivity to acid. Developed here in is an unprecedented electrochemical oxidative carbon-atom difunctionalization of isocyanides, providing a series of novel multisubstituted imino sulfide ethers. Under metal-free and external oxidant-free conditions, isocyanides react smoothly with simple and readily available mercaptans and alcohols. Importantly, the procedure exhibited high stereoselectivities, excellent functional-group tolerance, and good efficiency on large-scale synthesis, as well as further derivatization of the products.
Collapse
Affiliation(s)
- Zhipeng Guan
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Shuxiang Zhu
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Siyuan Wang
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Huamin Wang
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Siyuan Wang
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Xingxing Zhong
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Faxiang Bu
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Hengjiang Cong
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences and The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| |
Collapse
|
28
|
Scheide MR, Nicoleti CR, Martins GM, Braga AL. Electrohalogenation of organic compounds. Org Biomol Chem 2021; 19:2578-2602. [DOI: 10.1039/d0ob02459g] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this review we target sp, sp2 and sp3 carbon fluorination, chlorination, bromination and iodination reactions using electrolysis as a redox medium. Mechanistic insights and substrate reactivity are also discussed.
Collapse
Affiliation(s)
- Marcos R. Scheide
- Departamento de Química
- Universidade Federal de Santa Catarina – UFSC
- Florianópolis
- Brazil
| | - Celso R. Nicoleti
- Departamento de Química
- Universidade Federal de Santa Catarina – UFSC
- Florianópolis
- Brazil
| | - Guilherme M. Martins
- Departamento de Química
- Universidade Federal de Santa Catarina – UFSC
- Florianópolis
- Brazil
| | - Antonio L. Braga
- Departamento de Química
- Universidade Federal de Santa Catarina – UFSC
- Florianópolis
- Brazil
| |
Collapse
|
29
|
Zhong JS, Yu Y, Shi Z, Ye KY. An electrochemical perspective on the roles of ligands in the merger of transition-metal catalysis and electrochemistry. Org Chem Front 2021. [DOI: 10.1039/d0qo01227k] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A perspective on the roles of ligands in transition-metal catalysis under electrochemical conditions is provided.
Collapse
Affiliation(s)
- Jun-Song Zhong
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University)
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- China
| | - Yi Yu
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University)
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- China
| | - Zhaojiang Shi
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University)
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- China
| | - Ke-Yin Ye
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University)
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- China
| |
Collapse
|
30
|
Li H, Xue YF, Ge Q, Liu M, Cong H, Tao Z. Chiral electroorganic chemistry: An interdisciplinary research across electrocatalysis and asymmetric synthesis. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
31
|
Sbei N, Aslam S, Ahmed N. Organic synthesis via Kolbe and related non-Kolbe electrolysis: an enabling electro-strategy. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00047k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, the electrolysis process, where the anodic oxidation of carboxylic acids leads to decarboxylation, has been discussed to synthesize organic molecules.
Collapse
Affiliation(s)
- Najoua Sbei
- Organic Chemistry Department
- Peoples' Friendship University of Russia (RUDN University)
- Moscow
- Russian Federation
- Institute of Nanotechnology
| | - Samina Aslam
- Department of Chemistry
- The Women University Multan
- Multan 60000
- Pakistan
| | - Nisar Ahmed
- International Centre for Chemical and Biological Sciences
- HEJ Research Institute of Chemistry
- University of Karachi
- Karachi 75270
- Pakistan
| |
Collapse
|
32
|
Erchinger JE, Gemmeren M. Electrochemical Methods for Pd‐catalyzed C−H Functionalization. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000372] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Johannes E. Erchinger
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Manuel Gemmeren
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| |
Collapse
|
33
|
Yu K, Kong X, Yang J, Li G, Xu B, Chen Q. Electrochemical Oxidative Halogenation of N-Aryl Alkynamides for the Synthesis of Spiro[4.5]trienones. J Org Chem 2020; 86:917-928. [DOI: 10.1021/acs.joc.0c02429] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ke Yu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Xianqiang Kong
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Jiajun Yang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Guodong Li
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Bo Xu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Qianjin Chen
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| |
Collapse
|
34
|
Electrochemical Phosphorylation of Organic Molecules. CHEM REC 2020; 20:1530-1552. [DOI: 10.1002/tcr.202000096] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/12/2020] [Accepted: 09/14/2020] [Indexed: 02/04/2023]
|
35
|
Zhang TT, Luo MJ, Li Y, Song RJ, Li JH. Electrochemical Alkoxyhalogenation of Alkenes with Organohalides as the Halide Sources via Dehalogenation. Org Lett 2020; 22:7250-7254. [DOI: 10.1021/acs.orglett.0c02582] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ting-Ting Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Mu-Jia Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| |
Collapse
|
36
|
Paveliev SA, Churakov AI, Alimkhanova LS, Segida OO, Nikishin GI, Terent'ev AO. Electrochemical Synthesis of
O
‐Phthalimide Oximes from
α
‐Azido Styrenes
via
Radical Sequence: Generation, Addition and Recombination of Imide‐
N
‐Oxyl and Iminyl Radicals with C−O/N−O Bonds Formation. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000618] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Stanislav A. Paveliev
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences 47 Leninsky prosp. Moscow 119991 Russian Federation
| | - Artem I. Churakov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences 47 Leninsky prosp. Moscow 119991 Russian Federation
| | - Liliya S. Alimkhanova
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences 47 Leninsky prosp. Moscow 119991 Russian Federation
| | - Oleg O. Segida
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences 47 Leninsky prosp. Moscow 119991 Russian Federation
| | - Gennady I. Nikishin
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences 47 Leninsky prosp. Moscow 119991 Russian Federation
| | - Alexander O. Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences 47 Leninsky prosp. Moscow 119991 Russian Federation
| |
Collapse
|
37
|
Mo ZY, Wang XY, Zhang YZ, Yang L, Tang HT, Pan YM. Electrochemically enabled functionalization of indoles or anilines for the synthesis of hexafluoroisopropoxy indole and aniline derivatives. Org Biomol Chem 2020; 18:3832-3837. [PMID: 32396933 DOI: 10.1039/d0ob00157k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
An environmentally benign electrochemically enabled site-selective functionalization of indole or aniline derivatives with hexafluoroisopropanol in the presence of tetrabutyl ammonium hexafluorophosphate as the redox catalyst and electrolyte was demonstrated in this work. Under mild electro-oxidation conditions, a series of hexafluoroisopropoxy indole and aniline derivatives with pharmacological activity were obtained. This conversion does not need transition metals and oxidants, and has good functional group tolerance. The in vitro cytotoxicity of all compounds was evaluated by the MTT assay against four human cancer cell lines. The results revealed that hexafluoroisopropoxy indoles have good antitumor activity and compound 2i increased the intracellular levels of ROS and inhibited apoptosis in HeLa cells.
Collapse
Affiliation(s)
- Zu-Yu Mo
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Xin-Yu Wang
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Yu-Zhen Zhang
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Li Yang
- Guangxi Key Laboratory of Special Non-wood Forest Cultivation and Utilization, Guangxi Zhuang Autonomous Region Forestry Research Institute, Nanning, 530002, P. R. of China.
| | - Hai-Tao Tang
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Ying-Ming Pan
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China.
| |
Collapse
|
38
|
Zhang X, Cui T, Zhao X, Liu P, Sun P. Electrochemical Difunctionalization of Alkenes by a Four‐Component Reaction Cascade Mumm Rearrangement: Rapid Access to Functionalized Imides. Angew Chem Int Ed Engl 2020; 59:3465-3469. [DOI: 10.1002/anie.201913332] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 11/22/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Xiaofeng Zhang
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ting Cui
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Xin Zhao
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ping Liu
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Peipei Sun
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| |
Collapse
|
39
|
Zhang X, Cui T, Zhao X, Liu P, Sun P. Electrochemical Difunctionalization of Alkenes by a Four‐Component Reaction Cascade Mumm Rearrangement: Rapid Access to Functionalized Imides. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xiaofeng Zhang
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ting Cui
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Xin Zhao
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ping Liu
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Peipei Sun
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| |
Collapse
|
40
|
Wang P, Gao X, Huang P, Lei A. Recent Advances in Electrochemical Oxidative Cross‐Coupling of Alkenes with H
2
Evolution. ChemCatChem 2019. [DOI: 10.1002/cctc.201901773] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Pan Wang
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P. R. China
| | - Xinlong Gao
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P. R. China
| | - Pengfei Huang
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P. R. China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P. R. China
- National Research Center for Carbohydrate SynthesisJiangxi Normal University Nanchang 330022 P. R. China
| |
Collapse
|
41
|
Martins GM, Meirinho AG, Ahmed N, Braga AL, Mendes SR. Recent Advances in Electrochemical Chalcogen (S/Se)‐Functionalization of Organic Molecules. ChemElectroChem 2019. [DOI: 10.1002/celc.201901525] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Guilherme M. Martins
- Labselen, Departamento de QuímicaUniversidade Federal de Santa Catarina Florianópolis 88040-900 SC Brazil
- School of ChemistryCardiff University, Main Building, Park Place Cardiff CF10 3AT United Kingdom
| | - Anne G. Meirinho
- SINCA – Departamento de QuímicaUniversidade do Estado de Santa Catarina Joinville 89219-719 SC Brazil
| | - Nisar Ahmed
- School of ChemistryCardiff University, Main Building, Park Place Cardiff CF10 3AT United Kingdom
| | - Antonio L. Braga
- Labselen, Departamento de QuímicaUniversidade Federal de Santa Catarina Florianópolis 88040-900 SC Brazil
| | - Samuel R. Mendes
- SINCA – Departamento de QuímicaUniversidade do Estado de Santa Catarina Joinville 89219-719 SC Brazil
| |
Collapse
|
42
|
Xiong M, Liang X, Gao Z, Lei A, Pan Y. Synthesis of Isoxazolines and Oxazines by Electrochemical Intermolecular [2 + 1 + n] Annulation: Diazo Compounds Act as Radical Acceptors. Org Lett 2019; 21:9300-9305. [PMID: 31713430 DOI: 10.1021/acs.orglett.9b03306] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reported herein is an unprecedented synthesis of isoxazolines and oxazines through electrochemical intermolecular annulation of alkenes with tert-butyl nitrite, in which diazo compounds serve as radical acceptors. Notably, [2 + 1 + 2] and [2 + 1 + 3] annulations occur when styrenes and allylbenzenes are used as substrates, respectively. The latter reaction undergoes group migration to form more stable radical, manifesting radical route instead of conventional 1,3-dipolar cycloaddition occurs. Moreover, scale-up experiments suggest the potential application value of these transformations in industry.
Collapse
Affiliation(s)
- Mingteng Xiong
- Department of Chemistry , Zhejiang University , Hangzhou 310027 , Zhejiang , P. R. China
| | - Xiao Liang
- Department of Chemistry , Zhejiang University , Hangzhou 310027 , Zhejiang , P. R. China
| | - Zhan Gao
- Department of Chemistry , Zhejiang University , Hangzhou 310027 , Zhejiang , P. R. China
| | - Aiwen Lei
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , P. R. China
| | - Yuanjiang Pan
- Department of Chemistry , Zhejiang University , Hangzhou 310027 , Zhejiang , P. R. China
| |
Collapse
|
43
|
Hu C, Hong G, Zhou C, Tang Z, Han J, Wang L. Electrochemically Facilitated Oxidative Coupling of Quinoxalin‐2(1
H
)‐Ones with Diarylphosphine Oxides and Pyrroles: A Green Protocol for C−P, C−C(
sp
2
) Bond Formation. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900484] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chen Hu
- Key Laboratory for Advanced MaterialsInstitute of Fine Chemicals and School of Chemistry & Molecular EngineeringEast China University of Science and Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Gang Hong
- Key Laboratory for Advanced MaterialsInstitute of Fine Chemicals and School of Chemistry & Molecular EngineeringEast China University of Science and Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Chen Zhou
- Key Laboratory for Advanced MaterialsInstitute of Fine Chemicals and School of Chemistry & Molecular EngineeringEast China University of Science and Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Zhi‐Cong Tang
- Key Laboratory for Advanced MaterialsInstitute of Fine Chemicals and School of Chemistry & Molecular EngineeringEast China University of Science and Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Jian‐Wei Han
- Key Laboratory for Advanced MaterialsInstitute of Fine Chemicals and School of Chemistry & Molecular EngineeringEast China University of Science and Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Li‐Min Wang
- Key Laboratory for Advanced MaterialsInstitute of Fine Chemicals and School of Chemistry & Molecular EngineeringEast China University of Science and Technology 130 Meilong Road Shanghai 200237 P. R. China
| |
Collapse
|
44
|
Fu N, Song L, Liu J, Shen Y, Siu JC, Lin S. New Bisoxazoline Ligands Enable Enantioselective Electrocatalytic Cyanofunctionalization of Vinylarenes. J Am Chem Soc 2019; 141:14480-14485. [PMID: 31498595 DOI: 10.1021/jacs.9b03296] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In contrast to the rapid growth of synthetic electrochemistry in recent years, enantioselective catalytic methods powered by electricity remain rare. In this work, we report the development of a highly enantioselective method for the electrochemical cyanophosphinoylation of vinylarenes. A new family of serine-derived chiral bisoxazolines with ancillary coordination sites were identified as optimal ligands.
Collapse
Affiliation(s)
- Niankai Fu
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Lu Song
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Jinjian Liu
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Yifan Shen
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Juno C Siu
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Song Lin
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| |
Collapse
|
45
|
Mei H, Liu J, Guo Y, Han J. Electrochemical Alkoxysulfonylation Difunctionalization of Styrene Derivatives Using Sodium Sulfinates as Sulfonyl Sources. ACS OMEGA 2019; 4:14353-14359. [PMID: 31508561 PMCID: PMC6733175 DOI: 10.1021/acsomega.9b02442] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 08/09/2019] [Indexed: 05/15/2023]
Abstract
An eco-friendly method for the synthesis of β-alkoxy sulfones via electrochemical alkoxysulfonylation reaction of styrenes with sodium sulfinates as sulfonyl sources has been established. The reaction is conducted in an undivided cell at room temperature and tolerates a wide scope of styrenes, sodium sulfinates, and alcohols. The reaction does not need any chemical oxidants and transition-metal catalysts, which provides a new and green access to β-alkoxy sulfones.
Collapse
|
46
|
|
47
|
Electrochemical Fluoroalkynylation of Aryl Alkenes with Fluoride Ions and Alkynyltrifluoroborate Salts. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900020] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
48
|
Wang D, Gardinier JR, Lindeman SV. Iron( ii) tetrafluoroborate complexes of new tetradentate C-scorpionates as catalysts for the oxidative cleavage of trans-stilbene with H 2O 2. Dalton Trans 2019; 48:14478-14489. [DOI: 10.1039/c9dt02829c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Iron(ii) complexes of two new tetradentate C-scorpionate ligands are characterized. Both catalyze stilbene cleavage using either H2O2 or a O2/photocatalyst oxidant.
Collapse
Affiliation(s)
- Denan Wang
- Department of Chemistry
- Marquette University
- Milwaukee
- USA
| | | | | |
Collapse
|
49
|
Wei WT, Luo MJ, Teng F, Song RJ, Li JH. Silver-catalyzed oxidative 1,2-alkyletherification of unactivated alkenes with α-bromoalkyl carbonyls: facile access to highly substituted 2,3-dihydrofurans. Chem Commun (Camb) 2019; 55:11111-11114. [DOI: 10.1039/c9cc05695e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A silver-catalysed C–Br oxidative functionalization/annulative oxygenation process for producing valuable quaternary-carbon-possessing 2,3-dihydrofuran is presented.
Collapse
Affiliation(s)
- Wen-Ting Wei
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- School of Materials Science and Chemical Engineering
| | - Mu-Jia Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Fan Teng
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- School of Materials Science and Chemical Engineering
| |
Collapse
|
50
|
Martins GM, Shirinfar B, Hardwick T, Murtaza A, Ahmed N. Organic electrosynthesis: electrochemical alkyne functionalization. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01312a] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We outline examples of electrochemical alkyne functionalization reactions in connection with green and sustainable chemistry that proceed with excellent atom economy.
Collapse
Affiliation(s)
| | | | - Tomas Hardwick
- National Graphene Institute
- University of Manchester
- Manchester
- UK
| | - Ayesha Murtaza
- Department of Chemistry
- Khwaja Fareed University of Engineering and Information Technology
- Rahim Yar Khan 64200
- Pakistan
| | - Nisar Ahmed
- School of Chemistry
- Cardiff University
- Main Building
- Cardiff
- UK
| |
Collapse
|