1
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Chen J, Zhang L, Wang Z, Liu L, Tu L, Zhang Y, Chen Y, Han W. De Novo Synthesis of α-Ketoamides via Pd/TBD Synergistic Catalysis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2404266. [PMID: 38986026 PMCID: PMC11425860 DOI: 10.1002/advs.202404266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/17/2024] [Indexed: 07/12/2024]
Abstract
Precisely controlling the product selectivity of a reaction is an important objective in organic synthesis. α-Ketoamides are vital intermediates in chemical transformations and privileged motifs in numerous drugs, natural products, and biologically active molecules. The selective synthesis of α-ketoamides from feedstock chemicals in a safe and operationally simple manner under mild conditions is a long-standing catalysis challenge. Herein, an unprecedented TBD-switched Pd-catalyzed double isocyanide insertion reaction for assembling ketoamides in aqueous DMSO from (hetero)aryl halides and pseudohalides under mild conditions is reported. The effectiveness and utility of this protocol are demonstrated by its diverse substrate scope (93 examples), the ability to late-stage modify pharmaceuticals, scalability to large-scale synthesis, and the synthesis of pharmaceutically active molecules. Mechanistic studies indicate that TBD is a key ligand that modulates the Pd-catalyzed double isocyanide insertion process, thereby selectively providing the desired α-ketoamides in a unique manner. In addition, the imidoylpalladium(II) complex and α-ketoimine amide are successfully isolated and determined by X-ray analysis, confirming that they are probable intermediates in the catalytic pathway.
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Affiliation(s)
- Jia‐He Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Li‐Ren Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Zhang‐Yang Wang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Lu‐Jie Liu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Li‐Ping Tu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Yun Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of EducationZunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Yong‐Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of EducationZunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Wen‐Yong Han
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of EducationZunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
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2
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Jiang M, Yu L, Zou C, Yuan H, Xu M, Chen B, Hu P, Wang BQ, Cao P. Nickel-Catalyzed Enantioselective Carbonyl Addition of Aryl Chlorides and Bromides to Aldehydes. Chemistry 2024; 30:e202401591. [PMID: 38844428 DOI: 10.1002/chem.202401591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Indexed: 07/31/2024]
Abstract
The Ni-catalyzed enantioselective addition reaction of aryl halides to aldehydes was studied with cyanobis(oxazoline) as chiral ligands and Mn as reductant. Aryl and heteroaryl bromides reacted with phenyl aldehyde at room temperature to produce dibenzyl alcohols in 16-99 % yields with 53-92 % ees. Moreover, the coupling of phenyl chloride with a variety of aryl, heteroaryl and alkyl aldehydes was demonstrated in the presence of cyanobis(oxazoline)/Ni(II) at 60 °C in generally high yields with moderate enantioselectivities.
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Affiliation(s)
- Mingjie Jiang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Limei Yu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Chenhui Zou
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Hao Yuan
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Minghui Xu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Bin Chen
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Ping Hu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Peng Cao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
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3
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Dong M, Tong X. Pd(0)-Catalyzed Asymmetric Intramolecular Grignard-Type Reaction of Vinyl Iodide-Carbonyl. Chemistry 2024; 30:e202400236. [PMID: 38424002 DOI: 10.1002/chem.202400236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/02/2024]
Abstract
The insertion of carbonyl into C(sp2)-Pd(II) σ-bond (Grignard-type addition) was not established until the 1990s. While this elemental reaction has been well explored since then, its application in Pd(0) asymmetric catalysis remain elusive. Herein, we report the Pd(0)-catalyzed asymmetric intramolecular Grignard-type reaction of vinyl iodide-carbonyl in the presence of HCO2H additive, affording cyclic allylic alcohol with good to excellent enantioselectivity and diastereoselectivity. Mechanistic studies suggested that besides serving as an efficient reductant, HCO2H is also capable of facilitating protonation of the involved secondary alkoxyl-Pd(II), thus completely suppressing the β-H elimination. Moreover, no KIE was found in the competing reaction between vinyl iodide-aldehyde and 1-deuterated one, demonstrating the facile step of aldehyde insertion.
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Affiliation(s)
- Ming Dong
- School of Materials Science and Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Xiaofeng Tong
- School of Materials Science and Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou, Zhejiang, 318000, China
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4
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Shinde PS, Shinde VS, Rueping M. Electrochemical low valent cobalt-catalyzed addition of aryl and vinyl chlorides to α-ketoamides via C-Cl bond activation. Chem Commun (Camb) 2024; 60:3826-3829. [PMID: 38497225 DOI: 10.1039/d4cc00309h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
The development of an electrochemical cobalt catalyzed C-Cl bond activation at room temperature for the nucleophilic addition of aryl and vinyl chlorides to α-ketoamides is described. The overall method operates through an electrochemically induced low valent cobalt catalyst that oxidatively adds to aryl or vinyl chlorides affording medicinally important 3-hydroxy oxindole and 3-hydroxypyrrolidinone scaffolds. The development of an enantioselective version using a chiral pyrox ligand is also demonstrated.
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Affiliation(s)
- Prashant S Shinde
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia.
| | - Valmik S Shinde
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia.
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, Uttar Pradesh, India.
| | - Magnus Rueping
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia.
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5
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Kishor K, Prabhakar NS, Singh KN. Visible-Light-Mediated Synthesis of α-Ketoamides via Oxidative Amination of 2-Bromoacetophenones Using Eosin Y as a Photoredox Catalyst. Chem Asian J 2023; 18:e202300669. [PMID: 37642246 DOI: 10.1002/asia.202300669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 08/31/2023]
Abstract
An oxidative amination of 2-bromoacetophenones has been accomplished to provide α-ketoamides by using photoredox catalysis with air as oxidant. The reactants are readily accessible, and the method is endowed with broad substrate scope and good functional group tolerance. The practicality of the approach is also shown by a gram-scale reaction.
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Affiliation(s)
- Kaushal Kishor
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Neha Sharma Prabhakar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Krishna Nand Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
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6
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Changmai S, Gogoi T, Phukon J, Das B, Gogoi S. Ru(II)-catalyzed oxidative coupling of sulfoxonium ylides with amines: efficient synthesis of α-ketoamides and indolo[2,1- a]isoquinolines. Org Biomol Chem 2023; 21:3235-3244. [PMID: 36994697 DOI: 10.1039/d3ob00187c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
The first use of sulfoxonium ylides for the synthesis of α-ketoamides is described via a Ru(II)-catalyzed amidation reaction with amines. The same Ru(II)-catalyzed reaction of sulfoxonium ylides with 2-phenylindoles provided indolo[2,1-a]isoquinolines instead of α-ketoamides.
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Affiliation(s)
- Sumi Changmai
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Tribeni Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Jyotshna Phukon
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Bipul Das
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Sanjib Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
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7
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Ammon E, Khomutetckaia A, Villinger A, Ehlers P, Langer P. Serendipitous discovery of Pd-catalyzed intramolecular cyclization of ortho-bromo(hetero)aryl-substituted (hetero)aryl-1,2-diketones: Applications in the synthesis of carba- and heterocyclic benzoin derivatives. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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8
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Abstract
We report an intermolecular Ni-catalyzed reductive coupling of aryl iodides and isatins to form 3-hydroxyoxindoles. In contrast to common metal-mediated methods, sec-butanol is used as a mild stoichiometric reductant resulting in benign waste products. This formal 1,2-addition reaction is facilitated by a 1,5-diaza-3,7-diphosphacyclooctane (P2N2) ligand. Two Ni(0)-P2N2 species are prepared and found to be catalytically active, supporting a mechanistic hypothesis that this reaction proceeds by a modified carbonyl-Heck-type pathway.
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Affiliation(s)
- Amrah Nasim
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Gilian T Thomas
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Jeffrey S Ovens
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Stephen G Newman
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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9
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Ping Y, Li X, Pan Q, Kong W. Ni-Catalyzed Divergent Synthesis of 2-Benzazepine Derivatives via Tunable Cyclization and 1,4-Acyl Transfer Triggered by Amide N-C Bond Cleavage. Angew Chem Int Ed Engl 2022; 61:e202201574. [PMID: 35385598 DOI: 10.1002/anie.202201574] [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: 01/28/2022] [Indexed: 01/08/2023]
Abstract
Ligand-directed divergent synthesis can transform common starting materials into distinct molecular scaffolds by simple tuning different ligands. This strategy enables the rapid construction of structurally rich collection of small molecules for biological evaluation and reveals novel modes of catalytic transformation, representing one of the most sought-after challenges in synthetic chemistry. We herein report a Ni-catalyzed ligand-controlled tunable cyclization/cross-couplings for the divergent synthesis of pharmacologically important 2-benzazepine frameworks. The bidentate ligand facilitates the nucleophilic addition of the aryl halides to the amide carbonyl, followed by 1,4-acyl transfer and cross-coupling to obtain 2-benzazepin-5-ones and benzo[c]pyrano[2,3-e]azepines. The tridentate ligand promotes the selective 7-endo cyclization/cross-coupling to access to 2-benzazepin-3-ones. The protocol operates under mild reaction conditions with divergent cyclization patterns that can be easily modulated through the ligand backbone.
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Affiliation(s)
- Yuanyuan Ping
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
| | - Xiao Li
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
| | - Qi Pan
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
| | - Wangqing Kong
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
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10
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Zhu Z, Xiao J, Li M, Shi Z. Nickel-Catalyzed Intermolecular Asymmetric Addition of Aryl Iodides across Aldehydes. Angew Chem Int Ed Engl 2022; 61:e202201370. [PMID: 35147282 DOI: 10.1002/anie.202201370] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Indexed: 01/03/2023]
Abstract
Enantioenriched alcohols comprise much of the framework of organic molecules. Here, we first report that chiral nickel complexes can catalyze the intermolecular enantioselective addition of aryl iodides across aldehydes to provide diverse optically active secondary alcohols using zinc metal as the reducing agent. This method shows a broad substrate scope under mild reaction conditions and precludes the traditional strategy through the pre-generation of organometallic reagents. Mechanistic studies indicate that an in situ formed arylnickel, instead of an arylzinc, adds efficiently to aldehydes, forming a new C-C bond and a chiral nickel alkoxide that may be turned over by zinc powder.
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Affiliation(s)
- Ziqi Zhu
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Jieshuai Xiao
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Mingjie Li
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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11
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Ping Y, Li X, Pan Q, Kong W. Ni‐Catalyzed Divergent Synthesis of 2‐Benzazepine Derivatives via Tunable Cyclization and 1,4‐Acyl Transfer Triggered by Amide N‐C Bond Cleavage. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yuanyuan Ping
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
| | - Xiao Li
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
| | - Qi Pan
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
| | - Wangqing Kong
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
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12
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Zhao F, Ai HJ, Wu XF. Copper-Catalyzed Substrate-Controlled Carbonylative Synthesis of α-Keto Amides and Amides from Alkyl Halides. Angew Chem Int Ed Engl 2022; 61:e202200062. [PMID: 35175679 DOI: 10.1002/anie.202200062] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Indexed: 12/15/2022]
Abstract
Controllable production of α-keto amides and amides from the same substrates is an attractive goal in the field of transition-metal-catalyzed (double-)carbonylation. Herein, a novel copper-catalyzed highly selective double carbonylation of alkyl bromides has been developed. Moderate to good yields of α-keto amides were obtained as the only products. In the case of alkyl iodides, double- and mono-carbonylation can be achieved controllably under different conditions.
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Affiliation(s)
- Fengqian Zhao
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Han-Jun Ai
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany.,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, Liaoning, China
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13
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Singh S, Sureshbabu P, Sabiah S, Kandasamy J. Synthesis of N‐Aryl α–Ketoamides, α–Ketoesters, α–Ketothioesters and Their Applications in Quinoxalinone Preparation. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200122] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shweta Singh
- IIT BHU: Indian Institute of Technology BHU Varanasi Chemistry INDIA
| | - Popuri Sureshbabu
- IIT BHU: Indian Institute of Technology BHU Varanasi Chemistry INDIA
| | | | - Jeyakumar Kandasamy
- Indian Institute of Technology (BHU) Chemistry Varanasi 221005 Varanasi INDIA
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14
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Zhao F, Ai H, Wu X. Copper‐Catalyzed Substrate‐Controlled Carbonylative Synthesis of α‐Keto Amides and Amides from Alkyl Halides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fengqian Zhao
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Han‐Jun Ai
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Xiao‐Feng Wu
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Dalian Liaoning China
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15
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Zhu Z, Xiao J, Li M, Shi Z. Nickel‐Catalyzed Intermolecular Asymmetric Addition of Aryl Iodides across Aldehydes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ziqi Zhu
- Nanjing University School of Chemistry and Chemical Engineering CHINA
| | - Jieshuai Xiao
- Nanjing University School of Chemistry and Chemical Engineering CHINA
| | - Mingjie Li
- Nanjing University School of Chemistry and Chemical Engineering CHINA
| | - Zhuangzhi Shi
- Nanjing University 南京大学 School of Chemistry & Chemical Engineering 163 Xianlin Avenue栖霞区仙林大道163号南京大学化学化工学院 210046 Nanjing CHINA
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16
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Ma J, Cui X, Xu J, Tan Y, Wang Y, Wang X, Li Y. One-Pot Synthesis of α-Ketoamides from α-Keto Acids and Amines Using Ynamides as Coupling Reagents. J Org Chem 2022; 87:3661-3667. [PMID: 35029390 DOI: 10.1021/acs.joc.1c02453] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A one-pot strategy for α-keto amide bond formation have been developed by using ynamides as coupling reagents under extremely mild reaction conditions. Diversely structural α-ketoamides were afforded in up to 98% yield for 36 examples. This reaction features advantages such as practical coupling procedure, wide functional group tolerance, and extremely mild conditions and has potential applications in synthetic and medicinal chemistry.
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Affiliation(s)
- Jianting Ma
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Xue Cui
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Junyu Xu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Yinfeng Tan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Yan Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Xuesong Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Youbin Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
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17
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Peng YY, Zhuo BY, Wang ZQ, Liu B, Zhang FX, Yu JX, Wang CY, Xu ZF, Li JH. Mg(O tBu) 2-catalyzed C–H oxidation of α-azido arylethanones using TBHP as the oxidant and carbonyl oxygen source: facile access to primary α-ketoamides. Org Chem Front 2022. [DOI: 10.1039/d2qo01226j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Mg(OtBu)2-catalyzed C(sp3)–H oxidation of α-azido arylethanones to straightforwardly produce primary α-ketoamides is presented.
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Affiliation(s)
- Ying-Ying Peng
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Bi-Yin Zhuo
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Zhi-Qiang Wang
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Bang Liu
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Fu-Xing Zhang
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Jiang-Xi Yu
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Cheng-Yong Wang
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Zhi-Feng Xu
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Jin-Heng Li
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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18
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Singh S, Popuri S, Junaid QM, Sabiah S, Kandasamy J. Diversification of α-ketoamides via transamidation reactions with alkyl and benzyl amines at room temperature. Org Biomol Chem 2021; 19:7134-7140. [PMID: 34355726 DOI: 10.1039/d1ob01021b] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A wide range of N-tosyl α-ketoamides underwent transamidation with various alkyl amines in the absence of a catalyst, base, or additive. On the other hand, transamidation in N-Boc α-ketoamides was achieved in the presence of Cs2CO3. The reactions proceeded at room temperature and provided good to excellent yields of transamidation products under the optimized conditions. Broad substrate scope, functional group tolerance and quick conversions are the important features of the developed methodology.
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Affiliation(s)
- Shweta Singh
- Department of chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh-221005, India.
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19
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Zhuang SY, Tang YX, Chen XL, Wu YD, Wu AX. I 2-DMSO mediated oxidative amidation of methyl ketones with anthranils for the synthesis of α-ketoamides. Org Biomol Chem 2021; 19:4258-4262. [PMID: 33890609 DOI: 10.1039/d1ob00468a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An I2-DMSO mediated oxidative amidation of methyl ketones using anthranils as masked N-nucleophiles has been developed for the direct synthesis of α-ketoamides with high atom-economy. This metal-free process involves reductive N-O bond cleavage of anthranils and oxidative C-N bond formation of methyl ketones under mild conditions. The iodo group and electrophilic formyl group provide multiple possibilities for further functionalization of α-ketoamides.
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Affiliation(s)
- Shi-Yi Zhuang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
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20
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Chen X, Yue J, Wang K, Gui Y, Niu Y, Liu J, Ran C, Kong W, Zhou W, Yu D. Nickel‐Catalyzed Asymmetric Reductive Carbo‐Carboxylation of Alkenes with CO
2. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102769] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xiao‐Wang Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Jun‐Ping Yue
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Kuai Wang
- The Center for Precision Synthesis Institute for Advanced Studies Wuhan University Wuhan 430072 P. R. China
| | - Yong‐Yuan Gui
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- College of Chemistry and Materials Science Sichuan Normal University Chengdu 610068 P. R. China
| | - Ya‐Nan Niu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Jie Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Chuan‐Kun Ran
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Wangqing Kong
- The Center for Precision Synthesis Institute for Advanced Studies Wuhan University Wuhan 430072 P. R. China
| | - Wen‐Jun Zhou
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- College of Chemistry and Chemical Engineering Neijiang Normal University Neijiang 641100 P. R. China
| | - Da‐Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- Beijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
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21
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Chen X, Yue J, Wang K, Gui Y, Niu Y, Liu J, Ran C, Kong W, Zhou W, Yu D. Nickel‐Catalyzed Asymmetric Reductive Carbo‐Carboxylation of Alkenes with CO
2. Angew Chem Int Ed Engl 2021; 60:14068-14075. [DOI: 10.1002/anie.202102769] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Indexed: 01/07/2023]
Affiliation(s)
- Xiao‐Wang Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Jun‐Ping Yue
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Kuai Wang
- The Center for Precision Synthesis Institute for Advanced Studies Wuhan University Wuhan 430072 P. R. China
| | - Yong‐Yuan Gui
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- College of Chemistry and Materials Science Sichuan Normal University Chengdu 610068 P. R. China
| | - Ya‐Nan Niu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Jie Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Chuan‐Kun Ran
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Wangqing Kong
- The Center for Precision Synthesis Institute for Advanced Studies Wuhan University Wuhan 430072 P. R. China
| | - Wen‐Jun Zhou
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- College of Chemistry and Chemical Engineering Neijiang Normal University Neijiang 641100 P. R. China
| | - Da‐Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- Beijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
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22
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Wang J, Osman S, Lu X, Chen J, Xia XD. Visible light mediated aerobic oxidative hydroxylation of 2-oxindole-3-carboxylate esters: an alternative approach to 3-hydroxy-2-oxindoles. HETEROCYCL COMMUN 2020. [DOI: 10.1515/hc-2019-0114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractA convenient aerobic oxidative hydroxylation of 3-substituted oxindoles under mild reaction conditions is described herein. This process was accomplished by the activation of molecular oxygen in the air in the presence of a photocatalyst under the irradiation of visible light. The desired product was delivered in up to 89% yield without the addition of base or stoichiometric oxidant.
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Affiliation(s)
- Jinge Wang
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, College of Life Sciences, Tarim University, Alar, Xinjiang843300, P. R. China
| | - Siyitemer Osman
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, College of Life Sciences, Tarim University, Alar, Xinjiang843300, P. R. China
| | - Xinjiang Lu
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, College of Life Sciences, Tarim University, Alar, Xinjiang843300, P. R. China
| | - Junyi Chen
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, College of Life Sciences, Tarim University, Alar, Xinjiang843300, P. R. China
| | - Xu-Dong Xia
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, College of Life Sciences, Tarim University, Alar, Xinjiang843300, P. R. China
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23
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Urbán B, Nagy E, Nagy P, Papp M, Skoda-Földes R. Double carbonylation of iodoarenes in the presence of a pyridinium SILP-Pd catalyst. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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24
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Chen JY, Wu HY, Gui QW, Han XR, Wu Y, Du K, Cao Z, Lin YW, He WM. Electrochemical Synthesis of α-Ketoamides under Catalyst-, Oxidant-, and Electrolyte-Free Conditions. Org Lett 2020; 22:2206-2209. [DOI: 10.1021/acs.orglett.0c00387] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Jin-Yang Chen
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, China
| | - Hong-Yu Wu
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, China
| | - Qing-Wen Gui
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, China
| | - Xiao-Ran Han
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, China
| | - Yan Wu
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, China
| | - Kui Du
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, China
| | - Zhong Cao
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, China
| | - Ying-Wu Lin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Wei-Min He
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, China
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25
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Zhou P, XU T. Nickel-catalyzed intramolecular desymmetrization addition of aryl halides to 1,3-diketones. Chem Commun (Camb) 2020; 56:8194-8197. [DOI: 10.1039/d0cc00457j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A nickel-catalyzed intramolecular addition of aryl halides to 1,3-diketones was first developed to afford a polycyclic framework with two tetrasubstituted carbons in excellent diastereoselectivity. Moderate enantioselectivities were also achieved.
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Affiliation(s)
- Pan Zhou
- Shanghai Key Laboratory of Chemical Assessment and Sustainability
- School of Chemical Science and Engineering
- Tongji University
- Shanghai
- P. R. China
| | - Tao XU
- Shanghai Key Laboratory of Chemical Assessment and Sustainability
- School of Chemical Science and Engineering
- Tongji University
- Shanghai
- P. R. China
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26
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Zhou Z, Xu Y, Zhu B, Li P, Hu G, Yang F, Xu S, Zhang X. One-pot synthesis of 3-hydroxy-2-oxindoles via acyloin rearrangements of 2-hydroxy-indolin-3-ones generated in situ from 2-alkynyl arylazides. NEW J CHEM 2020. [DOI: 10.1039/d0nj04588h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A novel one-pot method to prepare 3-hydroxy-2-oxindoles via acyloin rearrangements of 2-hydroxy-indolin-3-ones generated in situ from 2-alkynyl arylazides has been described.
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Affiliation(s)
- Zhiqiang Zhou
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Yao Xu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Boyu Zhu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Ping Li
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Guiwen Hu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Fan Yang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Shijie Xu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Xiaoxiang Zhang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
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27
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Xiao Y, Yi Z, Yu X, Xiao F. Copper-catalyzed synthesis of α-ketoamides using water and dioxygen as the oxygen source. RSC Adv 2020; 10:29114-29118. [PMID: 35521140 PMCID: PMC9055944 DOI: 10.1039/d0ra05921h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 07/27/2020] [Indexed: 01/22/2023] Open
Abstract
The reaction employing H2O and O2 as the co-oxygen source in the catalytic synthesis of α-ketoamides is described. This copper-catalyzed reaction is carried out in a tandem manner constituted by the hydroamination of alkyne, hydration of vinyl–Cu complex and subsequent oxidation. Isotope labeling and radical capture experiments reveal that the oxygen atom of α-ketone at α-ketoamides derives from O2 and the oxygen atom of amide group originates from H2O. The reaction employing H2O and O2 as the co-oxygen source in the catalytic synthesis of α-ketoamides is described. This Cu-catalyzed reaction is carried out in a tandem manner constituted by hydroamination of alkyne, hydration of vinyl–Cu complex and subsequent oxidation.![]()
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Affiliation(s)
- Yuanyuan Xiao
- Department of Health Toxicology
- Xiangya School of Public Health
- Central South University
- Changsha 410078
- PR China
| | - Zijuan Yi
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
- Xiangtan 411201
- China
| | - Xianyong Yu
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
- Xiangtan 411201
- China
| | - Fang Xiao
- Department of Health Toxicology
- Xiangya School of Public Health
- Central South University
- Changsha 410078
- PR China
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28
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Islam SS, Riyajuddin S, Molla RA, Yasmin N, Ghosh K, Islam SM. POP-Pd(ii) catalyzed easy and safe in situ carbonylation towards the synthesis of α-ketoamides from secondary cyclic amines utilizing CHCl3 as a carbon monoxide surrogate. NEW J CHEM 2020. [DOI: 10.1039/c9nj05089b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
POP-palladium(ii) was synthesized for the in situ carbonylation of aryl iodides and secondary cyclic amine to the respective α-ketoamides.
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Affiliation(s)
- Sk Safikul Islam
- Department of Chemistry
- University of Kalyani
- Nadia
- India
- Department of Chemistry
| | | | - Rostam Ali Molla
- Department of Chemistry
- S. N. Bose Govt. Polytechnic College
- Malda
- India
| | - Nasima Yasmin
- Department of Chemistry
- Aliah University
- Kolkata-700160
- India
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29
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El-Meligie SEM, Khalil NA, El-Nassan HB, Ibraheem AAM. A Review on the Synthetic Routes to β-Keto Amides. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666191021120336] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review summarizes the data published on the methods of preparation of β-
keto amides as a versatile synthon for many heterocyclic rings and asymmetric urea derivatives.
Based on the starting materials used for the synthesis of β-keto amides, eight
methods were reported including β-keto acids and their derivatives, Meldrum’s acid and
their derivatives, diketene, 2,6-dimethyl-1,3-dioxin-4-one derivatives (TMD), α-diazo ketones,
enamines and enolates, acetamides and their derivatives and reduction of certain
Passerini products.
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Affiliation(s)
- Salwa E. M. El-Meligie
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Nadia A. Khalil
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Hala B. El-Nassan
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Ahmed A. M. Ibraheem
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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30
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Rocaboy R, Anastasiou I, Baudoin O. Redox‐Neutral Coupling between Two C(sp
3
)−H Bonds Enabled by 1,4‐Palladium Shift for the Synthesis of Fused Heterocycles. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908460] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ronan Rocaboy
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
| | - Ioannis Anastasiou
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
| | - Olivier Baudoin
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
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31
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Rocaboy R, Anastasiou I, Baudoin O. Redox‐Neutral Coupling between Two C(sp
3
)−H Bonds Enabled by 1,4‐Palladium Shift for the Synthesis of Fused Heterocycles. Angew Chem Int Ed Engl 2019; 58:14625-14628. [DOI: 10.1002/anie.201908460] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Indexed: 02/03/2023]
Affiliation(s)
- Ronan Rocaboy
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
| | - Ioannis Anastasiou
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
| | - Olivier Baudoin
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
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32
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Zhang YK, Wang B. Synthesis of α-Ketoamides from β-Ketonitriles and Primary Amines: A Catalyst-Free Oxidative Decyanation-Amidation Reaction. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900900] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Ya-Kai Zhang
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Haihe Education Park, 38 Tongyan Road 300353 Tianjin P. R. China
| | - Bin Wang
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Haihe Education Park, 38 Tongyan Road 300353 Tianjin P. R. China
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33
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Monga A, Pandey AP, Sharma A. Visible‐Light Mediated Photooxidative Synthesis of α‐Keto Amides. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900279] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Aparna Monga
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee- 247667 India
| | - Amar Prakash Pandey
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee- 247667 India
| | - Anuj Sharma
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee- 247667 India
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34
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Islam SS, Molla RA, Ta S, Yasmin N, Das D, Islam SM. Polymer supported triazine based palladium complex catalyzed double carbonylation reaction of halo aryl compounds for the synthesis of α-ketoamides. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.12.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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35
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Viana H, Marques CS, Correia CA, Gilmore K, Galvão L, Vieira L, Seeberger PH, Burke AJ. Novel Palladium-Catalyzed Intramolecular Addition of Aryl Bromides to Aldehydes as Key to the Synthesis of 3,3-Dimethylchroman-4-ones and 3,3-Dimethylchroman-4-ols. ChemistrySelect 2018. [DOI: 10.1002/slct.201802889] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hugo Viana
- Department of Chemistry; School of Science and Technology, University of Évora, Rua Romão Ramalho 59; 7000-671 Évora Portugal
| | - Carolina S. Marques
- Centro de Química de Évora; University of Évora, Institute for Research and Advanced Studies, Rua Romão Ramalho, 59; 7000 Évora Portugal
| | - Camille A. Correia
- Max Planck Institute of Colloids and Interfaces Am Muehlenberg 1; 14476 Potsdam Germany
| | - Kerry Gilmore
- Max Planck Institute of Colloids and Interfaces Am Muehlenberg 1; 14476 Potsdam Germany
| | - Luís Galvão
- Department of Chemistry; School of Science and Technology, University of Évora, Rua Romão Ramalho 59; 7000-671 Évora Portugal
| | - Letícia Vieira
- Department of Chemistry; School of Science and Technology, University of Évora, Rua Romão Ramalho 59; 7000-671 Évora Portugal
| | - Peter H. Seeberger
- Max Planck Institute of Colloids and Interfaces Am Muehlenberg 1; 14476 Potsdam Germany
- Institute of Chemistry and Biochemistry; Freie Universitat Berlin Arnimallee 22; 14195 Berlin Germany
| | - Anthony J. Burke
- Department of Chemistry; School of Science and Technology, University of Évora, Rua Romão Ramalho 59; 7000-671 Évora Portugal
- Centro de Química de Évora; University of Évora, Institute for Research and Advanced Studies, Rua Romão Ramalho, 59; 7000 Évora Portugal
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36
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Triantafyllakis M, Sfakianaki K, Kalaitzakis D, Vassilikogiannakis G. The Power of Triplet and Singlet Oxygen in Synthesis: 2-Oxindoles, 3-Hydroxy-2-oxindoles, and Isatins from Furans. Org Lett 2018; 20:3631-3634. [DOI: 10.1021/acs.orglett.8b01404] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Myron Triantafyllakis
- Department of Chemistry, University of Crete, VasilikaVouton, 71003, Iraklion, Crete, Greece
| | - Kalliopi Sfakianaki
- Department of Chemistry, University of Crete, VasilikaVouton, 71003, Iraklion, Crete, Greece
| | - Dimitris Kalaitzakis
- Department of Chemistry, University of Crete, VasilikaVouton, 71003, Iraklion, Crete, Greece
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37
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Urbán B, Szabó P, Srankó D, Sáfrán G, Kollár L, Skoda-Földes R. Double carbonylation of iodoarenes in the presence of reusable palladium catalysts immobilised on supported phosphonium ionic liquid phases. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2017.11.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Muthukumar A, Sangeetha S, Sekar G. Recent developments in functionalization of acyclic α-keto amides. Org Biomol Chem 2018; 16:7068-7083. [DOI: 10.1039/c8ob01423j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review describes the synthetic utility of α-keto amides to synthesize various important molecules via mono, dual and triple functionalization reactions.
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Affiliation(s)
- Alagesan Muthukumar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Subramani Sangeetha
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Govindasamy Sekar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
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39
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Yue Y, Peng J, Wang D, Bian Y, Sun P, Chen C. Synthesis of 4H-Chromen-4-one Derivatives by Intramolecular Palladium-Catalyzed Acylation of Alkenyl Bromides with Aldehydes. J Org Chem 2017; 82:5481-5486. [DOI: 10.1021/acs.joc.7b00640] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Yixia Yue
- Department of Chemistry
and
Chemical Engineering, College of Science, Northeast Forestry University, Harbin 150040, P. R. China
| | - Jinsong Peng
- Department of Chemistry
and
Chemical Engineering, College of Science, Northeast Forestry University, Harbin 150040, P. R. China
| | - Deqiang Wang
- Department of Chemistry
and
Chemical Engineering, College of Science, Northeast Forestry University, Harbin 150040, P. R. China
| | - Yunyun Bian
- Department of Chemistry
and
Chemical Engineering, College of Science, Northeast Forestry University, Harbin 150040, P. R. China
| | - Peng Sun
- Department of Chemistry
and
Chemical Engineering, College of Science, Northeast Forestry University, Harbin 150040, P. R. China
| | - Chunxia Chen
- Department of Chemistry
and
Chemical Engineering, College of Science, Northeast Forestry University, Harbin 150040, P. R. China
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40
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Sattar M, Rathore V, Prasad CD, Kumar S. Transition-metal-free Chemoselective Oxidative C-C Coupling of the sp 3 C-H Bond of Oxindoles with Arenes and Addition to Alkene: Synthesis of 3-Aryl Oxindoles, and Benzofuro- and Indoloindoles. Chem Asian J 2017; 12:734-743. [PMID: 28169505 DOI: 10.1002/asia.201601647] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 02/03/2017] [Indexed: 01/11/2023]
Abstract
A transition-metal (TM)-free and halogen-free NaOtBu-mediated oxidative cross-coupling between the sp3 C-H bond of oxindoles and sp2 C-H bond of nitroarenes has been developed to access 3-aryl substituted and 3,3-aryldisubstituted oxindoles in DMSO at room temperature in a short time. Interestingly, the sp3 C-H bond of oxindoles could also react with styrene under TM-free conditions for the practical synthesis of quaternary 3,3-disubstituted oxindoles. The synthesized 3-oxindoles have also been further transformed into advanced heterocycles, that is, benzofuroindoles, indoloindoles, and substituted indoles. Mechanistic experiments of the reaction suggests the formation of an anion intermediate from the sp3 C-H bond of oxindole by tert-butoxide base in DMSO. The addition of nitrobenzene to the in-situ generated carbanion leads to the 3-(nitrophenyl)oxindolyl carbanion in DMSO which is subsequently oxidized to 3-(nitro-aryl) oxindole by DMSO.
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Affiliation(s)
- Moh Sattar
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri Bhopal, Madhya Pradesh, 462066, India
| | - Vandana Rathore
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri Bhopal, Madhya Pradesh, 462066, India
| | - Ch Durga Prasad
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri Bhopal, Madhya Pradesh, 462066, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri Bhopal, Madhya Pradesh, 462066, India
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41
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Wang L, Qu X, Fang L, Li Z, Hu S, Wang F. Synthesis of 3-Acetoxyoxindole Derivatives by Metal-Free PhI(OAc)2-Mediated Oxidation of 3-Substituted Indoles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600706] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Liang Wang
- Key Laboratory of Optoelectronic Chemical Materials and Devices; Ministry of Education; School of Chemical and Enviromental Engineering; Jianghan University; 430056 Wuhan P. R. China
| | - Xing Qu
- Key Laboratory of Optoelectronic Chemical Materials and Devices; Ministry of Education; School of Chemical and Enviromental Engineering; Jianghan University; 430056 Wuhan P. R. China
| | - Lizhu Fang
- Key Laboratory of Optoelectronic Chemical Materials and Devices; Ministry of Education; School of Chemical and Enviromental Engineering; Jianghan University; 430056 Wuhan P. R. China
| | - Zhan Li
- Key Laboratory of Optoelectronic Chemical Materials and Devices; Ministry of Education; School of Chemical and Enviromental Engineering; Jianghan University; 430056 Wuhan P. R. China
| | - Siqian Hu
- Key Laboratory of Optoelectronic Chemical Materials and Devices; Ministry of Education; School of Chemical and Enviromental Engineering; Jianghan University; 430056 Wuhan P. R. China
| | - Feng Wang
- College of Chemistry and Materials Science; Hubei Engineering University; 432000 Xiaogan P. R. China
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42
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Totobenazara J, Bacalhau P, Juan AAS, Marques CS, Fernandes L, Goth A, Caldeira AT, Martins R, Burke AJ. Design, Synthesis and Bioassays of 3-Substituted-3-Hydroxyoxindoles for Cholinesterase Inhibition. ChemistrySelect 2016. [DOI: 10.1002/slct.201600932] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jane Totobenazara
- Departamento de Química; Escola de Ciências e Tecnologia; Universidade de Évora; Rua Romão Ramalho 59 7000-671 Évora Portugal
| | - Patrícia Bacalhau
- Departamento de Química; Escola de Ciências e Tecnologia; Universidade de Évora; Rua Romão Ramalho 59 7000-671 Évora Portugal
- Laboratório HERCULES; Institute for Research and Advanced Studies (IIFA); Universidade de Évora; Palácio do Vimioso; Largo Marquês de Marialva 8 7000-809 Évora Portugal
| | - Amor A. San Juan
- Centro de Química de Évora; Institute for Research and Advanced Studies (IIFA); Universidade de Évora; Rua Romão Ramalho 59 7000 Évora Portugal
| | - Carolina S. Marques
- Centro de Química de Évora; Institute for Research and Advanced Studies (IIFA); Universidade de Évora; Rua Romão Ramalho 59 7000 Évora Portugal
| | - Luís Fernandes
- Departamento de Química; Escola de Ciências e Tecnologia; Universidade de Évora; Rua Romão Ramalho 59 7000-671 Évora Portugal
- Centro de Química de Évora; Institute for Research and Advanced Studies (IIFA); Universidade de Évora; Rua Romão Ramalho 59 7000 Évora Portugal
| | - Albertino Goth
- Centro de Química de Évora; Institute for Research and Advanced Studies (IIFA); Universidade de Évora; Rua Romão Ramalho 59 7000 Évora Portugal
| | - A. Teresa Caldeira
- Departamento de Química; Escola de Ciências e Tecnologia; Universidade de Évora; Rua Romão Ramalho 59 7000-671 Évora Portugal
- Laboratório HERCULES; Institute for Research and Advanced Studies (IIFA); Universidade de Évora; Palácio do Vimioso; Largo Marquês de Marialva 8 7000-809 Évora Portugal
| | - Rosário Martins
- Departamento de Química; Escola de Ciências e Tecnologia; Universidade de Évora; Rua Romão Ramalho 59 7000-671 Évora Portugal
- Laboratório HERCULES; Institute for Research and Advanced Studies (IIFA); Universidade de Évora; Palácio do Vimioso; Largo Marquês de Marialva 8 7000-809 Évora Portugal
| | - Anthony J. Burke
- Departamento de Química; Escola de Ciências e Tecnologia; Universidade de Évora; Rua Romão Ramalho 59 7000-671 Évora Portugal
- Centro de Química de Évora; Institute for Research and Advanced Studies (IIFA); Universidade de Évora; Rua Romão Ramalho 59 7000 Évora Portugal
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43
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Affiliation(s)
- Dinesh Kumar
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
| | - Sandeep R. Vemula
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
| | - Gregory R. Cook
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
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44
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Moon HR, Lee S, Roh HJ, Kim JN. Facile Synthesis of 3-Aryl-3-hydroxy-2-oxindoles from 2-Arylindoles. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10807] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hye Ran Moon
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Sangku Lee
- Targeted Medicine Research Center; Korea Research Institute of Bioscience and Biotechnology; Chungbuk 363-883 Korea
| | - Hwa Jung Roh
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jae Nyoung Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
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45
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Saadi J, Bentz C, Redies K, Lentz D, Zimmer R, Reissig HU. Stereoselective synthesis of tricyclic compounds by intramolecular palladium-catalyzed addition of aryl iodides to carbonyl groups. Beilstein J Org Chem 2016; 12:1236-42. [PMID: 27559374 PMCID: PMC4979759 DOI: 10.3762/bjoc.12.118] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 06/01/2016] [Indexed: 11/23/2022] Open
Abstract
Starting from γ-ketoesters with an o-iodobenzyl group we studied a palladium-catalyzed cyclization process that stereoselectively led to bi- and tricyclic compounds in moderate to excellent yields. Four X-ray crystal structure analyses unequivocally defined the structure of crucial cyclization products. The relative configuration of the precursor compounds is essentially transferred to that of the products and the formed hydroxy group in the newly generated cyclohexane ring is consistently in trans-arrangement with respect to the methoxycarbonyl group. A transition-state model is proposed to explain the observed stereochemical outcome. This palladium-catalyzed Barbier-type reaction requires a reduction of palladium(II) back to palladium(0) which is apparently achieved by the present triethylamine.
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Affiliation(s)
- Jakub Saadi
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, D-14195 Berlin, Germany
| | - Christoph Bentz
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, D-14195 Berlin, Germany
| | - Kai Redies
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, D-14195 Berlin, Germany
| | - Dieter Lentz
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, D-14195 Berlin, Germany
| | - Reinhold Zimmer
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, D-14195 Berlin, Germany
| | - Hans-Ulrich Reissig
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, D-14195 Berlin, Germany
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46
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Burke AJ. Recent advances in metal catalyzed intramolecular aryl additions—accessing bioactive molecules. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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47
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Wan JP, Lin Y, Cao X, Liu Y, Wei L. Copper-catalyzed, hypervalent iodine mediated CC bond activation of enaminones for the synthesis of α-keto amides. Chem Commun (Camb) 2016; 52:1270-3. [DOI: 10.1039/c5cc08843g] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
An unprecedented approach toward the general synthesis of α-keto amides has been established by tailoring the CC double bond of enaminones in the presence of CuI and hypervalent iodine.
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Affiliation(s)
- Jie-Ping Wan
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Yunfang Lin
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Xiaoji Cao
- Research Centre of Analysis and Measurement
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Li Wei
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
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48
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Abstract
The synthesis of 3-aryl-3-hydroxy-2-oxindoles, which are a structural motif found in various natural products and pharmaceutically active compounds, was conducted via reductive coupling of (2-aminophenyl)(aryl)methanone derivatives and CO2 as a key step. The conditions employing Mg with chlorotrimethylsilane in DMA are the best for the reductive coupling. The reductive coupling and acid-catalyzed lactam formation can be performed in a one-pot reaction to give the oxindoles.
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Affiliation(s)
- Toru Amaya
- Department of Applied Chemistry
- Graduate School of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Izumi Kurata
- Department of Applied Chemistry
- Graduate School of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Toshikazu Hirao
- Department of Applied Chemistry
- Graduate School of Engineering
- Osaka University
- Osaka 565-0871
- Japan
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49
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Li X, Ni W, Mao F, Wang W, Li J. A Metal-free Approach to 3-Aryl-3-hydroxy-2-oxindoles by Treatment of 3-Acyloxy-2-oxindoles with Diaryliodonium Salts. Chem Asian J 2015; 11:226-30. [DOI: 10.1002/asia.201500854] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Xiaokang Li
- Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Wei Ni
- Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Fei Mao
- Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Wei Wang
- Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
- Department of Chemistry and Chemical Biology; University of New Mexico; Albuquerque NM 87131-0001 USA
| | - Jian Li
- Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
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50
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Shin I, Ramgren SD, Krische MJ. Reductive Cyclization of Halo-Ketones to Form 3-Hydroxy-2-Oxindoles via Palladium Catalyzed Hydrogenation: A Hydrogen-Mediated Grignard Addition. Tetrahedron 2015; 71:5776-5780. [PMID: 26273111 PMCID: PMC4528639 DOI: 10.1016/j.tet.2015.05.085] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reductive cyclization of N-oxoacyl ortho-bromoanilides to form 3-hydroxy-2-oxindoles under the conditions of palladium catalyzed hydrogenation is described. This work may be viewed as a prelude to intermolecular hydrogen-mediated Grignard-type reductive couplings of organic halides with carbonyl compounds.
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Affiliation(s)
- Inji Shin
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, USA
| | - Stephen D. Ramgren
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, USA
| | - Michael J. Krische
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, USA
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