1
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Derat E, Masson G, Claraz A. Electrochemically-Driven 1,4-Aryl Migration via Radical Fluoromethylation of N-Allylbenzamides: a Straightforward Access to Functionalized β-Arylethylamines. Angew Chem Int Ed Engl 2024:e202406017. [PMID: 38687085 DOI: 10.1002/anie.202406017] [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: 03/28/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/02/2024]
Abstract
An electrochemical radical Truce Smiles rearrangement of N-allylbenzamides is documented herein. The selective 1,4-aryl migration was triggered by the radical fluoromethylation of the alkene providing a direct route to fluoro derivatives of the highly privileged β-arylethylamine pharmacophore. This practical transformation utilizes readily available starting materials and employs an electrical current to drive the oxidative process under mild reaction conditions. It accommodates a variety of migratory aryl groups with different electronic properties and substitution patterns. Careful selection of the protecting group on the nitrogen atom of the N-allylbenzamide is crucial to outcompete the undesired 6-endo cyclization and achieve high level of selectivity towards the 1,4-aryl migration. DFT calculations support the reaction mechanism and unveil the origin of selectivity between the two competitive pathways.
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Affiliation(s)
- Etienne Derat
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 Place Jussieu, CC 229, 75252, Paris Cedex 05, France
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles (ICSN), CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette, France
- HitCat, Seqens-CNRS joint laboratory, Seqens'lab, 8 rue de Rouen, 78440, Porcheville, France
| | - Aurélie Claraz
- Institut de Chimie des Substances Naturelles (ICSN), CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette, France
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2
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Badufle M, Robert F, Landais Y. Visible light mediated iron-catalyzed addition of oxamic acids to imines. RSC Adv 2024; 14:12528-12532. [PMID: 38638815 PMCID: PMC11024671 DOI: 10.1039/d4ra02258k] [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: 03/24/2024] [Accepted: 04/09/2024] [Indexed: 04/20/2024] Open
Abstract
Oxamic acids where shown to add to imines, providing a broad range of α-aminoacid amides in generally good yields. The process is efficient on pre-formed imines but may also be conducted using a 3-component strategy by simply mixing aldehydes, amines and oxamic acids in the presence of ferrocene, acting both as a photocatalyst under visible light and as a Lewis acid. The reaction proceeds through the addition onto the imine of a carbamoyl radical intermediate generated through a charge transfer from the carboxylate ligand to a Fe(iii) species (LMCT).
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Affiliation(s)
- Margaux Badufle
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 F-33400 Talence France
| | - Frédéric Robert
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 F-33400 Talence France
| | - Yannick Landais
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 F-33400 Talence France
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3
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Yu J, Liu T, Sun W, Zhang Y. Electrochemical Decarboxylative Elimination of Carboxylic Acids to Alkenes. Org Lett 2023; 25:7816-7821. [PMID: 37870311 DOI: 10.1021/acs.orglett.3c02997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
An electrochemical strategy for the decarboxylative elimination of carboxylic acids to alkenes at room temperature has been developed. This mild and oxidant-free method provides a green alternative to traditional thermal decarboxylation reactions. Structurally diverse aliphatic carboxylic acids, including biologically active drugs, underwent smooth conversion to the corresponding alkenes in good to excellent yields.
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Affiliation(s)
- Jiage Yu
- College of Science, China Agricultural University, Beijing 100193, P. R. China
| | - Teng Liu
- College of Science, China Agricultural University, Beijing 100193, P. R. China
| | - Wanhao Sun
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100871, P. R. China
| | - Yunfei Zhang
- College of Science, China Agricultural University, Beijing 100193, P. R. China
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4
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Kitcatt DM, Scott KA, Rongione E, Nicolle S, Lee AL. Direct decarboxylative Giese amidations: photocatalytic vs. metal- and light-free. Chem Sci 2023; 14:9806-9813. [PMID: 37736650 PMCID: PMC10510818 DOI: 10.1039/d3sc03143h] [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: 06/20/2023] [Accepted: 08/23/2023] [Indexed: 09/23/2023] Open
Abstract
A direct intermolecular decarboxylative Giese amidation reaction from bench stable, non-toxic and environmentally benign oxamic acids has been developed, which allows for easy access to 1,4-difunctionalised compounds which are not otherwise readily accessible. Crucially, a more general acceptor substrate scope is now possible, which renders the Giese amidation applicable to more complex substrates such as natural products and chiral building blocks. Two different photocatalytic methods (one via oxidative and the other via reductive quenching cycles) and one metal- and light-free method were developed and the flexibility provided by different conditions proved to be crucial for enabling a more general substrate scope.
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Affiliation(s)
- David M Kitcatt
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University Edinburgh EH14 4AS UK
| | - Katie A Scott
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University Edinburgh EH14 4AS UK
| | - Elena Rongione
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University Edinburgh EH14 4AS UK
| | - Simon Nicolle
- GlaxoSmithKline Gunnels Wood Rd Stevenage SG1 2NY UK
| | - Ai-Lan Lee
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University Edinburgh EH14 4AS UK
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5
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Ogbu IM, Kurtay G, Badufle M, Robert F, Lopez CS, Landais Y. PIDA-mediated Oxidative Decarboxylation of Oxamic Acids. The Role of Radical Acidity Enhancement. Chemistry 2023; 29:e202202963. [PMID: 36583591 DOI: 10.1002/chem.202202963] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/28/2022] [Accepted: 12/30/2022] [Indexed: 12/31/2022]
Abstract
The PIDA-mediated oxidative decarboxylation of oxamic acids in the presence of alcohols is shown to afford the corresponding urethanes under thermal conditions. Computational and experimental mechanistic exploration allows to rationalize the different reactivity of PIDA as compared to related cyclic BI-OAc and highlights the importance of the enhanced acidity of the proton in the carbamoyl radical intermediate.
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Affiliation(s)
- Ikechukwu Martin Ogbu
- Institute of Molecular Sciences (ISM), Univ. Bordeaux, CNRS, UMR-5255, 351 Cours de la Libération, 33400, Talence, France
| | - Gülbin Kurtay
- Institute of Molecular Sciences (ISM), Univ. Bordeaux, CNRS, UMR-5255, 351 Cours de la Libération, 33400, Talence, France.,University of Ankara, Department of Chemistry, Faculty of Science, 06800, Ankara, Turkey
| | - Margaux Badufle
- Institute of Molecular Sciences (ISM), Univ. Bordeaux, CNRS, UMR-5255, 351 Cours de la Libération, 33400, Talence, France
| | - Frédéric Robert
- Institute of Molecular Sciences (ISM), Univ. Bordeaux, CNRS, UMR-5255, 351 Cours de la Libération, 33400, Talence, France
| | - Carlos Silva Lopez
- University of Vigo, Campus Universitario As lagoas, Marcosende, 36310, Vigo, Spain
| | - Yannick Landais
- Institute of Molecular Sciences (ISM), Univ. Bordeaux, CNRS, UMR-5255, 351 Cours de la Libération, 33400, Talence, France
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6
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Koizumi H, Takeuchi K, Matsumoto K, Fukaya N, Sato K, Uchida M, Matsumoto S, Hamura S, Hirota J, Nakashige M, Choi JC. Direct Conversion of Low-Concentration CO 2 into N-Aryl and N-Alkyl Carbamic Acid Esters Using Tetramethyl Orthosilicate with Amidines as a CO 2 Capture Agent and a Catalyst. J Org Chem 2023; 88:5015-5024. [PMID: 36791400 DOI: 10.1021/acs.joc.2c02326] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Herein, we report the direct conversion of low-concentration CO2 (15 vol %), equivalent to the CO2 concentration in the exhaust gas from a thermal power station, into carbamic acid esters (CAEs), which are precursors for pharmaceuticals, agrochemicals, and isocyanates. The reaction was performed using Si(OMe)4 as a nonmetallic regenerable reagent and 1,8-diazabicyclo[5.4.0]undec-7-ene as a CO2 capture agent and catalyst. This reaction system does not require the addition of metal complex catalysts or metal salt additives and is therefore simpler than our previously reported reaction system involving Ti(OR)4 and a Zn(II) catalyst. A variety of N-aryl, N-alkyl, and bis CAEs (precursors of polyurethane raw materials) were obtained in moderate to high yields (45-77% for 6 examples, 84-89% for 7 examples). In addition, bis CAEs were successfully synthesized from simulated exhaust gas containing impurities such as SO2, NO2, and CO or on a gram scale. We believe that this method can eliminate the use of toxic phosgene as the raw material for isocyanate production and mitigate CO2 emissions.
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Affiliation(s)
- Hiroki Koizumi
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan
| | - Katsuhiko Takeuchi
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan
| | - Kazuhiro Matsumoto
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan
| | - Norihisa Fukaya
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan
| | - Kazuhiko Sato
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan
| | - Masahito Uchida
- Tosoh Corporation, Advanced Materials Research Laboratory, 2743-1 Hayakawa, Ayase, Kanagawa 252-1123, Japan
| | - Seiji Matsumoto
- Tosoh Corporation, 3-8-2 Shiba, Minato-Ku, Tokyo 105-8623, Japan
| | - Satoshi Hamura
- Tosoh Corporation, 3-8-2 Shiba, Minato-Ku, Tokyo 105-8623, Japan
| | - Junya Hirota
- Tosoh Corporation, Technology Center, 4560 Kaiseicho, Shunan, Yamaguchi 746-8501, Japan
| | - Makoto Nakashige
- Tosoh Corporation, Technology Center, 4560 Kaiseicho, Shunan, Yamaguchi 746-8501, Japan
| | - Jun-Chul Choi
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan
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7
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Mooney DT, Moore PR, Lee AL. Direct Minisci-Type C–H Amidation of Purine Bases. Org Lett 2022; 24:8008-8013. [PMID: 36285836 PMCID: PMC9641672 DOI: 10.1021/acs.orglett.2c03206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
A method for the C–H carboxyamidation of purines
has been
developed that is capable of directly installing primary, secondary,
and tertiary amides. Previous Minisci-type investigations on purines
were limited to alkylations and arylations. Herein, we present the
first method for the direct C–H amidation of a wide range of
purines: xanthine, guanine, and adenine structures, including guanosine-
and adenosine-type nucleosides. The Minisci-type reaction is also
metal-free, cheap, operationally simple, scalable, and applicable
to late-stage functionalizations of biologically important molecules.
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Affiliation(s)
- David T. Mooney
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS Scotland, U.K
| | - Peter R. Moore
- Early Chemical Development, Pharmaceutical Sciences, R&D BioPharmaceuticals, AstraZeneca, Macclesfield, SK10 2NA England, U.K
| | - Ai-Lan Lee
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS Scotland, U.K
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8
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Ogbu IM, Kurtay G, Robert F, Landais Y. Oxamic acids: useful precursors of carbamoyl radicals. Chem Commun (Camb) 2022; 58:7593-7607. [PMID: 35735051 DOI: 10.1039/d2cc01953a] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review article describes the recent development in the chemistry of carbamoyl radicals generated from oxamic acids. This mild and efficient method compares well with previous methods of generation of these nucleophilic radicals. The oxidative decarboxylation of oxamic acids can be mediated through thermal, photochemical, electrochemical or photoelectrochemical means, generating carbamoyl radicals, which may further add to unsaturated systems to provide a broad range of important amides. Oxidative decarboxylation of oxamic acids also offers a straightforward entry for the preparation of urethanes, ureas, and thioureas.
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Affiliation(s)
- Ikechukwu Martin Ogbu
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France. .,Alex Ekwueme Federal University, Department of Chemistry, Faculty of Sciences, Ndufu-Alike Ikwo, Abakaliki, Ebonyi State, Nigeria
| | - Gülbin Kurtay
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France. .,University of Ankara, Department of Chemistry, Faculty of Science, Ankara, Turkey
| | - Frédéric Robert
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France.
| | - Yannick Landais
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France.
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9
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Li S, Li X, Wang T, Yang Q, Ouyang Z, Chen J, Zhai H, Li X, Cheng B. Electrochemical Decarboxylative Coupling of N‐Substituted Glycines under Air: Access to C3‐Aminomethylated Imidazo[1,2‐a]pyridines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | | | | | | | - Hongbin Zhai
- Peking University Shenzhen Graduate School CHINA
| | - Xiao Li
- University of Science and Technology Liaoning CHINA
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10
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Mooney DT, Donkin BDT, Demirel N, Moore PR, Lee AL. Direct C-H Functionalization of Phenanthrolines: Metal- and Light-Free Dicarbamoylations. J Org Chem 2021; 86:17282-17293. [PMID: 34792370 DOI: 10.1021/acs.joc.1c02425] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A direct method for C-H dicarbamoylations of phenanthrolines has been developed, which is capable of directly installing primary, secondary as well as tertiary amides. This is a significant improvement on the previous direct method, which was limited to primary amides. The metal-, light-, and catalyst-free Minisci-type reaction is cheap, operationally simple, and scalable. We demonstrate that the step efficiency toward dicarbamoylated phenanthroline targets can now be significantly improved.
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Affiliation(s)
- David T Mooney
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, Scotland EH14 4AS, U.K
| | - Benjamin D T Donkin
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, Scotland EH14 4AS, U.K
| | - Nemrud Demirel
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, Scotland EH14 4AS, U.K
| | - Peter R Moore
- Early Chemical Development, Pharmaceutical Sciences, BioPharmaceuticals R&D, AstraZeneca, Macclesfield SK10 2NA, U.K
| | - Ai-Lan Lee
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, Scotland EH14 4AS, U.K
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11
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Petti A, Fagnan C, van Melis CGW, Tanbouza N, Garcia AD, Mastrodonato A, Leech MC, Goodall ICA, Dobbs AP, Ollevier T, Lam K. Supporting-Electrolyte-Free Anodic Oxidation of Oxamic Acids into Isocyanates: An Expedient Way to Access Ureas, Carbamates, and Thiocarbamates. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00112] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Alessia Petti
- School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, U.K
| | - Corentin Fagnan
- School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, U.K
| | - Carlo G. W. van Melis
- School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, U.K
| | - Nour Tanbouza
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
| | - Anthony D. Garcia
- School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, U.K
| | - Andrea Mastrodonato
- School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, U.K
| | - Matthew C. Leech
- School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, U.K
| | - Iain C. A. Goodall
- School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, U.K
| | - Adrian P. Dobbs
- School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, U.K
| | - Thierry Ollevier
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
| | - Kevin Lam
- School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, U.K
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12
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An electrochemical multicomponent [3 + 1 + 1] annulations to synthesize polysubstituted 1,2,4-triazoles. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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13
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Meng H, Sun K, Xu Z, Tian L, Wang Y. P(III)‐Assisted Electrochemical Access to Ureas via in situ Generation of Isocyanates from Hydroxamic Acids. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Haiwen Meng
- Technical Institute of Fluorochemistry (TIF) Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 211816 Nanjing China
| | - Kunhui Sun
- Technical Institute of Fluorochemistry (TIF) Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 211816 Nanjing China
| | - Zhimin Xu
- Technical Institute of Fluorochemistry (TIF) Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 211816 Nanjing China
| | - Lifang Tian
- Technical Institute of Fluorochemistry (TIF) Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 211816 Nanjing China
| | - Yahui Wang
- Technical Institute of Fluorochemistry (TIF) Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Nanjing Tech University 211816 Nanjing China
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14
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Yang Z, Yu Y, Lai L, Zhou L, Ye K, Chen FE. Carbon dioxide cycle via electrocatalysis: Electrochemical carboxylation of CO2 and decarboxylative functionalization of carboxylic acids. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.01.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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15
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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.
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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
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