1
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Chen W, Zhang X, Wang X, Zhang E, Wang ZL, Jia J. Synthesis of α-ketoamides via oxidative amidation of diazo compounds with O-benzoyl hydroxylamines as nitrogen source and the oxidant. Org Biomol Chem 2024; 22:6708-6712. [PMID: 39118467 DOI: 10.1039/d4ob00883a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
A simple, efficient method has been described for the construction of an array of α-ketoamides from readily available O-benzoyl hydroxylamines and diazo compounds as starting materials. There was a combined use of CuI as a catalyst and H2O as the oxygen source. The investigation reveals that the O-benzoyl hydroxylamines serve a dual role as both an amine source and the oxidant in this mechanism, thereby obviating the need for additional oxidants in the transformation process. This methodology could give a wider range of products in good to excellent yields for most substrates, and thus, we provide a new idea for the synthesis of α-ketoamides.
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Affiliation(s)
- Wenwen Chen
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China.
| | - Xinyin Zhang
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China.
| | - Xinyu Wang
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China.
| | - EnXuan Zhang
- Fengcheng MediTech (Tianjin) Co., Ltd, Bld. 6, Zone C2, Binhai-Zhongguancun, Tianjin, 300457, P.R. China
| | - Zu-Li Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China.
| | - Jianfeng Jia
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China.
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2
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Wang YW, Liu XN, Zheng J, Su J, Li QJ, Cai XR, Wang Q, Liang XY. DMAP-promoted oxidative functionalization of α-amino ketones via oxygen delivery from water/alcohols. Chem Commun (Camb) 2024; 60:7359-7362. [PMID: 38919041 DOI: 10.1039/d4cc02348j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
This paper shows a novel oxidative functionalization of α-amino ketones to yield the corresponding α-ketoamides and α-acylimidates. The reaction proceeds via oxygen delivery from water/alcohols in conjunction with an electron acceptor and 4-dimethylaminopyridine (DMAP). Mechanistic study indicates that DMAP exhibits a dual function of nucleophilic catalysis and proton abstraction.
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Affiliation(s)
- Ying-Wei Wang
- College of Chemical Engineering, Sichuan University of Science & Engineering Zigong, Sichuan 643000, China.
| | - Xiao-Nan Liu
- College of Chemical Engineering, Sichuan University of Science & Engineering Zigong, Sichuan 643000, China.
| | - Jia Zheng
- Wuliangye Yibing CO., Ltd, Yibing, Sichuan 644000, China
| | - Jian Su
- Wuliangye Yibing CO., Ltd, Yibing, Sichuan 644000, China
| | - Qi-Jun Li
- Wuliangye Yibing CO., Ltd, Yibing, Sichuan 644000, China
| | - Xian-Rong Cai
- College of Chemical Engineering, Sichuan University of Science & Engineering Zigong, Sichuan 643000, China.
| | - Qiang Wang
- Wuliangye Yibing CO., Ltd, Yibing, Sichuan 644000, China
| | - Xing-Yong Liang
- College of Chemical Engineering, Sichuan University of Science & Engineering Zigong, Sichuan 643000, China.
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3
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Yavari I, Shaabanzadeh S. Electrochemical Formation of α-Ketoamides from Ketoximes through Non-Beckmann Mechanism Pathway. J Org Chem 2024; 89:6238-6246. [PMID: 38652259 DOI: 10.1021/acs.joc.4c00230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
α-Ketoamides are highly valued in synthetic chemistry due to their incorporation into diverse natural products and drug molecules. Here, we present an innovative electrochemical approach for constructing α-ketoamides, utilizing a mild and environmentally friendly strategy in a user-friendly undivided cell setup under constant current. The excellent functional-group tolerance, convenient accessibility of reaction instruments and starting materials, and easy scalability collectively enhance the importance of this protocol compared to previous challenging methods. Additionally, mechanistic insight into this reaction is obtained through the investigation of cyclic voltammograms of the reactants.
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Affiliation(s)
- Issa Yavari
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
| | - Sina Shaabanzadeh
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
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4
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Gallarati S, van Gerwen P, Laplaza R, Brey L, Makaveev A, Corminboeuf C. A genetic optimization strategy with generality in asymmetric organocatalysis as a primary target. Chem Sci 2024; 15:3640-3660. [PMID: 38455002 PMCID: PMC10915838 DOI: 10.1039/d3sc06208b] [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: 11/20/2023] [Accepted: 01/30/2024] [Indexed: 03/09/2024] Open
Abstract
A catalyst possessing a broad substrate scope, in terms of both turnover and enantioselectivity, is sometimes called "general". Despite their great utility in asymmetric synthesis, truly general catalysts are difficult or expensive to discover via traditional high-throughput screening and are, therefore, rare. Existing computational tools accelerate the evaluation of reaction conditions from a pre-defined set of experiments to identify the most general ones, but cannot generate entirely new catalysts with enhanced substrate breadth. For these reasons, we report an inverse design strategy based on the open-source genetic algorithm NaviCatGA and on the OSCAR database of organocatalysts to simultaneously probe the catalyst and substrate scope and optimize generality as a primary target. We apply this strategy to the Pictet-Spengler condensation, for which we curate a database of 820 reactions, used to train statistical models of selectivity and activity. Starting from OSCAR, we define a combinatorial space of millions of catalyst possibilities, and perform evolutionary experiments on a diverse substrate scope that is representative of the whole chemical space of tetrahydro-β-carboline products. While privileged catalysts emerge, we show how genetic optimization can address the broader question of generality in asymmetric synthesis, extracting structure-performance relationships from the challenging areas of chemical space.
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Affiliation(s)
- Simone Gallarati
- Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Puck van Gerwen
- Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
- National Center for Competence in Research - Catalysis (NCCR-Catalysis), Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Ruben Laplaza
- Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
- National Center for Competence in Research - Catalysis (NCCR-Catalysis), Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Lucien Brey
- Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Alexander Makaveev
- Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Clemence Corminboeuf
- Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
- National Center for Competence in Research - Catalysis (NCCR-Catalysis), Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
- National Center for Computational Design and Discovery of Novel Materials (MARVEL), Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
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5
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Singhal R, Choudhary SP, Malik B, Pilania M. I 2/DMSO-mediated oxidative C-C and C-heteroatom bond formation: a sustainable approach to chemical synthesis. RSC Adv 2024; 14:5817-5845. [PMID: 38362068 PMCID: PMC10866128 DOI: 10.1039/d3ra08685b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 01/30/2024] [Indexed: 02/17/2024] Open
Abstract
The I2/DMSO pair has emerged as a versatile, efficient, practical, and eco-friendly catalyst system, playing a significant role as a mild oxidative system, and thus employed as a good alternative to metal catalysts in synthetic chemistry. Presently, I2/DMSO is a thriving catalytic system that is used in preparing C-C and C-X (X = O/S/N/Se/Cl/Br) bonds, resulting in the formation of various bioactive molecules. Many processes utilize this system, including in situ glyoxal synthesis by diverse sp, sp2, and sp3 functionalities via iodination and subsequent Kornblum oxidation. Focusing on oxidation processes, this study examines the synergistic effect of dimethyl sulfoxide (DMSO) and molecular iodine in improving synthetic techniques. We provide a comprehensive overview of the research progress on the I2/DMSO catalytic system for the formation of C-C and C-heteroatom bonds from 2018 to the present. Additionally, the future prospects of this research field are discussed.
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Affiliation(s)
- Rakshanda Singhal
- Department of Chemistry, Manipal University Jaipur VPO- Dehmi-Kalan, Off Jaipur-Ajmer Express Way Jaipur 303007 Rajasthan India
| | - Satya Prakash Choudhary
- Department of Chemistry, Manipal University Jaipur VPO- Dehmi-Kalan, Off Jaipur-Ajmer Express Way Jaipur 303007 Rajasthan India
| | - Babita Malik
- Department of Chemistry, Manipal University Jaipur VPO- Dehmi-Kalan, Off Jaipur-Ajmer Express Way Jaipur 303007 Rajasthan India
| | - Meenakshi Pilania
- Department of Chemistry, Manipal University Jaipur VPO- Dehmi-Kalan, Off Jaipur-Ajmer Express Way Jaipur 303007 Rajasthan India
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6
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Sarkar S, Pal S, Mukherjee A, Santra S, Zyryanov GV, Majee A. Visible-Light-Promoted Metal- and Photocatalyst-Free Reactions between Arylglyoxylic Acids and Tetraalkylthiuram Disulfides: Synthesis of α-Ketoamides. J Org Chem 2024; 89:1473-1482. [PMID: 38225732 DOI: 10.1021/acs.joc.3c02081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
A convenient and new synthetic approach has been developed for the oxidative cross-coupling of the C-N bond through the reaction between arylglyoxylic acids and tetraalkylthiuram disulfides. The reaction proceeds under ambient air at room temperature in the presence of visible light. This reaction offers a metal-, base-, photocatalyst-, and solvent-free synthesis of various α-ketoamides with moderate to excellent yields via the radical pathway. In addition, this protocol demonstrates the potential application of a gram-scale synthesis.
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Affiliation(s)
- Subhankar Sarkar
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Satyajit Pal
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Anindita Mukherjee
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russian Federation
| | - Sougata Santra
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russian Federation
| | - Grigory V Zyryanov
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy Street, 620219 Yekaterinburg, Russian Federation
| | - Adinath Majee
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
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7
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Jadav JP, Vankar JK, Gupta A, Gururaja GN. Atmospheric Oxygen Facilitated Oxidative Amidation to α-Ketoamides and Unusual One Carbon Degradative Amidation to N-Alkyl Amides. J Org Chem 2023; 88:15551-15561. [PMID: 37883330 DOI: 10.1021/acs.joc.3c00457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
A mild, transition-metal-free novel synthetic approach for the construction of C═O and C-N bonds has been demonstrated. Easily accessible gem-dibromoalkenes under similar conditions form oxidative amidation product α-ketoamides and unusual degradative amidation product N-alkyl amides by simply changing the amine substitute. Atmospheric air containing molecular oxygen proved to be an ideal oxidant for an amidation reaction. Under similar conditions, the electron-deficient gem-dibromoalkenes play a dual role with different formamides forming novel oxidative amidation products and by the state of art neighboring group participation of amine to unusual one-carbon degradative amidation products.
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Affiliation(s)
- Jaydeepbhai P Jadav
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Jigarkumar K Vankar
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Ankush Gupta
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
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8
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Lu B, Zhang Z, Jiang M, Liang D, He ZW, Bao FS, Xiao WJ, Chen JR. Photoinduced Five-Component Radical Relay Aminocarbonylation of Alkenes. Angew Chem Int Ed Engl 2023; 62:e202309460. [PMID: 37615886 DOI: 10.1002/anie.202309460] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/06/2023] [Accepted: 08/24/2023] [Indexed: 08/25/2023]
Abstract
Radical single carbonylation reactions with CO constitute a direct and robust strategy toward various carbonyl compounds from readily available chemicals, and have been extensively studied over the past decades. However, realizing highly selective catalytic systems for controlled radical double carbonylation reactions has remained a substantial challenge, particularly for the more advanced multicomponent variants, despite their great potential value. Herein, we report a visible-light-driven radical relay five-component radical double aminocarbonylation reaction of unactivated alkenes using CO under metal-free conditions. This protocol provides direct access to valuable γ-trifluoromethyl α-ketoamides with good yields and high chemoselectivity. Crucial was the identification of distinct dual roles of amine coupling partners, sequentially acting as electron donors for the formation of photoactive electron donor-acceptor (EDA) complexes with radical precursors and then as a CO acceptor via nitrogen radical cations to form carbamoyl radicals. Cross-coupling of carbamoyl radicals with the acyl radicals that are formed in an alkene-based relay process affords double aminocarbonylation products.
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Affiliation(s)
- Bin Lu
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, China
| | - Zhihan Zhang
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, China
| | - Min Jiang
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, China
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 310036, China
| | - Dong Liang
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, China
| | - Zi-Wei He
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, China
| | - Feng-Shuo Bao
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, China
| | - Wen-Jing Xiao
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, China
- Wuhan Institute of Photochemistry and Technology, 7 North Bingang Road, Wuhan, Hubei, 430083, China
| | - Jia-Rong Chen
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, China
- Wuhan Institute of Photochemistry and Technology, 7 North Bingang Road, Wuhan, Hubei, 430083, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, China
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9
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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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10
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Wang Y, Meng X, Cai C, Wang L, Gong H. Radical Cross-Coupling Reaction Based on Hydrogen Atom Abstraction of DMF and Decarboxylation of α-Ketoacid under Electricity. J Org Chem 2022; 87:15042-15049. [DOI: 10.1021/acs.joc.2c01461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yanjie Wang
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Xia Meng
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Changqun Cai
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Lingyun Wang
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- School of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Hang Gong
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
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11
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Zhang J, Zhu Y, Cai J, Jia J, Liu G, Dang Y, Wang X, Zhang Y. Copper‐Catalyzed Oxidative Amidation for the Synthesis of α‐Ketoamides from α‐Diazoketones with Amines Using Oxygen as Oxidant. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200264] [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)
- Jianlan Zhang
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering No.58, Yanta Road 710054 Xi'an CHINA
| | - Youyu Zhu
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Jiangtao Cai
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Jia Jia
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Guoyang Liu
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Yongqiang Dang
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Xuesong Wang
- Hainan Medical University School of Pharmacy CHINA
| | - Yating Zhang
- Xi'an University of Science and Technology College of Chemistry and Chemical Engineering CHINA
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12
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Bhukta S, Chatterjee R, Dandela R. Iodine-TBHP mediated efficient synthesis of α-ketoamides from vinyl azides and amines under mild conditions. Org Biomol Chem 2022; 20:3907-3912. [PMID: 35502880 DOI: 10.1039/d2ob00458e] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A convenient and practical synthetic approach for α-ketoamides has been developed under mild conditions. The facile synthesis of α-ketoamides has been accomplished using aryl vinyl azides and secondary amines at room temperature. The inexpensive and readily available iodine and TBHP easily promoted the oxidative amidation process to afford diketoamide derivatives in high yields. This method involves the synthesis of ketoamide compounds via sequential C-O and C-N bond formation. Moreover, metal-free and aerobic conditions and wide substrate scope are the notable advantages of this protocol.
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Affiliation(s)
- Swadhapriya Bhukta
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Indian Oil Odisha Campus, Samantpuri, Bhubaneswar 751013, India.
| | - Rana Chatterjee
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Indian Oil Odisha Campus, Samantpuri, Bhubaneswar 751013, India.
| | - Rambabu Dandela
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Indian Oil Odisha Campus, Samantpuri, Bhubaneswar 751013, India.
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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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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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15
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Manhas FM, Raheem S, Kumar J, Thakur P, Rizvi MA. A photosensitized metal free approach to α‐ketoamides:sequential oxidative amidationdiketonization of terminal alkynes. ChemistrySelect 2021. [DOI: 10.1002/slct.202101511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Farah Manzer Manhas
- Department of Chemistry Shoolini University Solan, Himachal Pradesh 173212 India
| | - Shabnam Raheem
- Department of Chemistry University of Kashmir Srinagar 190006, J&K India
| | - Jaswant Kumar
- Natural Product and Medicinal Chemistry Division CSIR-Indian Institute of Integrative Medicine Jammu 180001 India
| | - Pankaj Thakur
- Department of Environmental Sciences Central University of Himachal Pradesh Dharmshala 176215 India
| | - Masood Ahmad Rizvi
- Department of Chemistry University of Kashmir Srinagar 190006, J&K India
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16
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Cha H, Chai JY, Kim HB, Chi DY. Synthesis of aliphatic α-ketoamides from α-substituted methyl ketones via a Cu-catalyzed aerobic oxidative amidation. Org Biomol Chem 2021; 19:4320-4326. [PMID: 33904536 DOI: 10.1039/d1ob00129a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
α-Ketoamides are an important key functional group and have been used as versatile and valuable intermediates and synthons in a variety of functional group transformations. Synthetic methods for making aryl α-ketoamides as drug candidates have been greatly improved through metal-catalyzed aerobic oxidative amidations. However, the preparation of alkyl α-ketoamides through metal-catalyzed aerobic oxidative amidations has not been reported because generating α-ketoamides from aliphatic ketones with two α-carbons theoretically provides two distinct α-ketoamides. Our strategy is to activate the α-carbon by introducing an N-substituent at one of the two α-positions. The key to this strategy is how heterocyclic compounds such as triazoles and imidazoles affect the selectivity of the synthesis of the alkyl α-ketoamides. From this basic concept, and by optimizing the reaction and elucidating the mechanism of the synthesis of aryl α-ketoamides via a copper-catalyzed aerobic oxidative amidation, we prepared fourteen aliphatic α-ketoamides in high yields (48-84%).
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Affiliation(s)
- Hyojin Cha
- Department of Chemistry, Sogang University, 35 Baekbeomro Mapogu, Seoul 04107, Korea.
| | - Jin Young Chai
- Department of Chemistry, Sogang University, 35 Baekbeomro Mapogu, Seoul 04107, Korea.
| | - Hyeong Baik Kim
- Department of Chemistry, Sogang University, 35 Baekbeomro Mapogu, Seoul 04107, Korea.
| | - Dae Yoon Chi
- Department of Chemistry, Sogang University, 35 Baekbeomro Mapogu, Seoul 04107, Korea.
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17
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Barak DS, Dahatonde DJ, Dighe SU, Kant R, Batra S. Decarboxylative/Oxidative Amidation of Aryl α-Ketocarboxylic Acids with Nitroarenes and Nitroso Compounds in Aqueous Medium. Org Lett 2020; 22:9381-9385. [PMID: 33206540 DOI: 10.1021/acs.orglett.0c03666] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The decarboxylative/oxidative amidation of aryl α-ketocarboxylic acids with 5-aryl-3-nitroisoxazole-4-carboxylates and substituted dinitrobenzenes under oxidative aqueous conditions to afford N-aryl amides is described. The reaction is suggested to proceed via a radical pathway in which a benzoyl nitroxyl radical, the key intermediate formed from reaction between nitroarene and benzoyl radical from glyoxalic acid, couples with hydroxyl radical from water to produce amide. Mechanistic insight allowed the scope of the strategy to be expanded to the synthesis of amides via reaction between aryl α-ketocarboxylic acids and nitroso compounds.
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Affiliation(s)
| | | | | | | | - Sanjay Batra
- Academy of Scientific and Innovative Research, CSIR-Human Resource Development Centre (CSIR-HRDC), Campus, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201002, India
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18
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El-Meligie SEM, Khalil NA, El-Nassan HB, Ibraheem AAM. New synthetic approaches to thieno[3,2-d]pyrimidine and thieno[3,4-b]pyridine derivatives. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01089-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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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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20
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Liu G, Hao F, He X, Xu Y, Jin Z, Jiang H, Wu J. Catalyst‐ and Additive‐free Synthesis of α‐Pyrrolyl Amides upon Treatment of α‐Keto Amides with 4‐Hydroxy‐L‐proline. ChemistrySelect 2020. [DOI: 10.1002/slct.202002037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Guyue Liu
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Feiyue Hao
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Xiaoyu He
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Yan Xu
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Zhengneng Jin
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Huajiang Jiang
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Jiashou Wu
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
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21
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Di Sanza R, Nguyen TLN, Iqbal N, Argent SP, Lewis W, Lam HW. Enantioselective nickel-catalyzed arylative and alkenylative intramolecular 1,2-allylations of tethered allene-ketones. Chem Sci 2020; 11:2401-2406. [PMID: 34084403 PMCID: PMC8157472 DOI: 10.1039/c9sc05246a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/20/2020] [Indexed: 01/02/2023] Open
Abstract
The enantioselective nickel-catalyzed reaction of tethered allene-ketones with (hetero)arylboronic acids or potassium vinyltrifluoroborate is described. Carbonickelation of the allene gives allylnickel species, which undergo cyclization by 1,2-allylation to produce chiral tertiary-alcohol-containing aza- and carbocycles in high diastereo- and enantioselectivities.
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Affiliation(s)
- Riccardo Di Sanza
- The Glaxo Smith Kline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
| | - Thi Le Nhon Nguyen
- The Glaxo Smith Kline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
| | - Naeem Iqbal
- The Glaxo Smith Kline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
| | - Stephen P Argent
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
| | - William Lewis
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
| | - Hon Wai Lam
- The Glaxo Smith Kline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry, University of Nottingham University Park Nottingham NG7 2RD UK
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22
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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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23
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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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24
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Poletto J, Ribeiro GM, da Silva MJV, Jacomini AP, Basso EA, Back DF, Moura S, Rosa FA. One-Pot Highly Regioselective Synthesis of α-Ketoamide N-Arylpyrazoles from Secondary β-Enamino Diketones. Org Lett 2019; 21:6325-6328. [DOI: 10.1021/acs.orglett.9b02206] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Julia Poletto
- Departamento de Química, Universidade Estadual de Maringá (UEM), 87030-900 Maringá, PR, Brazil
| | - Gessica M. Ribeiro
- Departamento de Química, Universidade Estadual de Maringá (UEM), 87030-900 Maringá, PR, Brazil
| | - Michael J. V. da Silva
- Departamento de Química, Universidade Estadual de Maringá (UEM), 87030-900 Maringá, PR, Brazil
| | - Andrey P. Jacomini
- Departamento de Química, Universidade Estadual de Maringá (UEM), 87030-900 Maringá, PR, Brazil
| | - Ernani A. Basso
- Departamento de Química, Universidade Estadual de Maringá (UEM), 87030-900 Maringá, PR, Brazil
| | - Davi F. Back
- Departamento de Química, Universidade Federal de Santa Maria (UFSM), 97110-970 Santa Maria, RS, Brazil
| | - Sidnei Moura
- Instituto de Biotecnologia, Universidade de Caxias do Sul (UCS), 295070-560 Caxias do Sul, RS, Brazil
| | - Fernanda A. Rosa
- Departamento de Química, Universidade Estadual de Maringá (UEM), 87030-900 Maringá, PR, Brazil
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25
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Parveen N, Muthukumar A, Sekar G. Ligand‐Free and Reusable Palladium Nanoparticles‐Catalyzed Alkylation of 2‐Alkylazaarenes with Activated Ketones under Neutral Conditions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900447] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Naziya Parveen
- Department of ChemistryIndian Institute of Technology Madras Chennai – 600036 India
| | - Alagesan Muthukumar
- Department of ChemistryIndian Institute of Technology Madras Chennai – 600036 India
| | - Govindasamy Sekar
- Department of ChemistryIndian Institute of Technology Madras Chennai – 600036 India
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26
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Das P, Begam HM, Bhunia SK, Jana R. Photoredox‐Catalyzed Tandem Demethylation of
N
,
N
‐Dimethyl Anilines Followed by Amidation with α‐Keto or Alkynyl Carboxylic Acids. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900525] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Pritha Das
- Organic and Medicinal Chemistry Division CSIR-Indian Institute of Chemical Biology 4 Raja S. C. Mullick Road, Jadavpur Kolkata- 700032, West Bengal India
| | - Hasina Mamataj Begam
- Organic and Medicinal Chemistry Division CSIR-Indian Institute of Chemical Biology 4 Raja S. C. Mullick Road, Jadavpur Kolkata- 700032, West Bengal India
| | - Samir Kumar Bhunia
- Organic and Medicinal Chemistry Division CSIR-Indian Institute of Chemical Biology 4 Raja S. C. Mullick Road, Jadavpur Kolkata- 700032, West Bengal India
- Academy of Scientific and Innovative Research (AcSIR) Kolkata- 700032 India
| | - Ranjan Jana
- Organic and Medicinal Chemistry Division CSIR-Indian Institute of Chemical Biology 4 Raja S. C. Mullick Road, Jadavpur Kolkata- 700032, West Bengal India
- Academy of Scientific and Innovative Research (AcSIR) Kolkata- 700032 India
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27
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Ghosh A, Hegde R, Makane VB, Sridhar B, Rode HB, Patil SA, Dateer RB. Transition metal-free functionalized hydration of alkynes: one-pot synthesis of fluorinated β-keto-imidates using Selectfluor. Org Biomol Chem 2019; 17:4440-4445. [PMID: 30984956 DOI: 10.1039/c9ob00527g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A transition metal-free, four-component one-pot synthesis of polyfunctionalized fluorinated β-keto-imidates via the functionalized hydration of alkynes has been described. The intermediate 1,3-ketoamino moiety was obtained from easily accessible arylpropioladehyde and arlyhydroxylamine and was treated with Selectfluor delivering fluorinated β-keto-imidates. A wide variety of functional groups are tolerated under mild reaction conditions and the product applicability is highlighted.
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Affiliation(s)
- Arnab Ghosh
- Centre for Nano and Material Sciences, Jain Global Campus, JAIN (Deemed-to-be-University), Bangalore, Karnataka 562112, India.
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28
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Muthukumar A, Rao GN, Sekar G. Zn(OTf) 2-catalyzed access to symmetrical and unsymmetrical bisindoles from α-keto amides. Org Biomol Chem 2019; 17:3921-3933. [PMID: 30941387 DOI: 10.1039/c9ob00114j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Zn(OTf)2-catalyzed synthesis of 3,3'-bisindolyl acetamides from α-keto amides is developed. Both aromatic α-keto amides substituted with electron-donating as well as -withdrawing groups and aliphatic α-keto amides are well tolerated to provide symmetrical bisindoles in moderate to excellent yields. The chemoselective bisindolylation of the keto group of α-keto amides in the presence of a simple keto functionality is successfully achieved in good yields. The transformation is further extended to the synthesis of challenging unsymmetrical bisindoles by treating indolyl α-hydroxy amides with substituted indoles. The unsymmetrical bisindoles are isolated in good to excellent yields.
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Affiliation(s)
- Alagesan Muthukumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, India.
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