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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Liu J, Yao J, Du J, Yu L, Duan W, Xiao Y, Lei Z. Direct Synthesis of α-Ketoamides via Copper-Catalyzed Reductive Amidation of Nitroarenes with α-Oxocarboxylic Acids. J Org Chem 2024; 89:6575-6583. [PMID: 38656973 DOI: 10.1021/acs.joc.4c00237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Nitroarenes are known for their stability, low toxicity, easy availability, and cost-effectiveness, making them one of the most fundamental chemical feedstocks. The direct utilization of nitroarenes as nitrogen sources in amidation reactions offers significant advantages over using arylamines. Herein, we disclose a streamlined method for constructing α-ketoamides through the direct coupling of nitroarenes with α-oxocarboxylic acids. This transformation obviates the need for preparing, isolating, and purifying arylamines, leading to improved efficiency, cost-effectiveness, and time savings.
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Affiliation(s)
- Jialing Liu
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Jiaxin Yao
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Jiahui Du
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Lin Yu
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Wengui Duan
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Yuxuan Xiao
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Zhiguo Lei
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
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3
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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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4
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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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5
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Li Y, Zhong P, Zhao J, Pan Z, Zhang C, Cui D. Selective Synthesis of N-[1,3,5]Triazinyl-α-Ketoamides and N-[1,3,5]Triazinyl-Amides from the Reactions of 2-Amine-[1,3,5]Triazines with Ketones. Molecules 2023; 28:molecules28114338. [PMID: 37298814 DOI: 10.3390/molecules28114338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/11/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
In this study, we report a selective approach for synthesizing N-([1,3,5]triazine-2-yl) α-ketoamides and N-([1,3,5]triazine-2-yl) amides from ketones with 2-amino[1,3,5]triazines through oxidation and oxidative C-C bond cleavage reaction, respectively. The transformation proceeds under mild conditions, provides good functional group tolerance and chemoselectivity, and will serve as a valuable tool for the synthesis of bioactive products.
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Affiliation(s)
- Yue Li
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Pengzhen Zhong
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Junna Zhao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Zexi Pan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Chen Zhang
- School of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dongmei Cui
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
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6
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Wang AJ, She CY, Zhang YD, Zhao LH, Shu WM, Yu WC. Copper/TEMPO-Promoted Denitrogenation/Oxidation Reaction for Synthesis of Primary α-Ketoamides Using α-Azido Ketones. J Org Chem 2022; 87:16099-16105. [DOI: 10.1021/acs.joc.2c01814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- An-Jing Wang
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China
| | - Chun-Yan She
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China
| | - Yu-Die Zhang
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China
| | - Li-Han Zhao
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China
| | - Wen-Ming Shu
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi 435002, P. R. China
| | - Wei-Chu Yu
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China
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7
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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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8
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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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9
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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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10
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He F, Qu R, Su J, Du M, Liu J, Chen Y, Wang B. Unveiling the reaction process of the amine in direct amidation of aromatic ketones in H 2O. ChemistryOpen 2020; 9:996-1000. [PMID: 33042727 PMCID: PMC7539465 DOI: 10.1002/open.202000178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/01/2020] [Indexed: 11/08/2022] Open
Abstract
In the classical amidation between aromatic ketones and amines, 2.0 equivalents of amines are necessarily required to gain satisfying yields. The specific role of the amine in the direct amidation already puzzled us for a long time. In this work, we disclosed that the amine acts as both reactant and catalyst. Specifically, the determination of reaction intermediates revealed the full mechanism, based on which, the introduction of one equivalent base in the amidation is showcased here that a high yield (∼95 %) can be afforded using only 1.1 equiv. of amine.
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Affiliation(s)
- Fangjun He
- Key Laboratory of Advanced Materials of Tropical Island Resources(Hainan University)Ministry of EducationHainan UniversityNo. 58, Renmin AVEHaikou570228China
| | - Rumeng Qu
- Key Laboratory of Advanced Materials of Tropical Island Resources(Hainan University)Ministry of EducationHainan UniversityNo. 58, Renmin AVEHaikou570228China
| | - Jie Su
- Key Laboratory of Advanced Materials of Tropical Island Resources(Hainan University)Ministry of EducationHainan UniversityNo. 58, Renmin AVEHaikou570228China
| | - Muyao Du
- School of Food ScienceShandong Agricultural UniversityNo. 61, Daizhong AVETaian271018China
| | - Junqiang Liu
- Key Laboratory of Advanced Materials of Tropical Island Resources(Hainan University)Ministry of EducationHainan UniversityNo. 58, Renmin AVEHaikou570228China
| | - Yiping Chen
- Key Laboratory of Advanced Materials of Tropical Island Resources(Hainan University)Ministry of EducationHainan UniversityNo. 58, Renmin AVEHaikou570228China
| | - Bo Wang
- Key Laboratory of Advanced Materials of Tropical Island Resources(Hainan University)Ministry of EducationHainan UniversityNo. 58, Renmin AVEHaikou570228China
- School of Chemical and Biological EngineeringShandong University of Science and Technology No. 579, Qianwangang RoadQingdao266590China
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11
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Bayat M, Nasri S, Alivisi R, Jani A. Novel synthesis of oxoacetamides via reaction of salicylaldehyde and isocyanide under mild reaction condition. Heliyon 2020; 6:e04076. [PMID: 32490258 PMCID: PMC7260292 DOI: 10.1016/j.heliyon.2020.e04076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 04/27/2020] [Accepted: 05/21/2020] [Indexed: 11/28/2022] Open
Abstract
A convenient procedure for the formation of oxoacetamides derivatives is reported via the reaction of salicylaldehyde and alkyl isocyanide in a simple process without the use of any catalyst or metal promoters in DCM at room temperature. The structure of all obtained derivatives were determined by elemental and spectral analyses. In this reaction, 1,3-dioxine-4,4-dicarboxamide was obtained as minor product. This process offers considerable advantages such as the simplicity of reaction, regioselectivity, and the use of commercially available materials.
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Affiliation(s)
- Mohammad Bayat
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Shima Nasri
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Rahman Alivisi
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Azadeh Jani
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
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12
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13
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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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14
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Wang H, Zhao Y, Zheng Y, Fang S, Li J, Wan X. Oxidative Coupling of Diazo and NH4I: A Route to Primary Oxamates and α-Ketoamides. J Org Chem 2020; 85:3050-3058. [DOI: 10.1021/acs.joc.9b02952] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hanghang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yanwei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yonggao Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Shangwen Fang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jingjing Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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15
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Xie D, He W, Xiao J, Wu Y, Guo Y, Liu Q, Guo C. Direct synthesis of 2-oxo-acetamidines from methyl ketones, aromatic amines and DMF via copper-catalyzed C(sp 3)-H amidination. RSC Adv 2019; 9:7203-7209. [PMID: 35519951 PMCID: PMC9061129 DOI: 10.1039/c9ra00616h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 02/25/2019] [Indexed: 12/18/2022] Open
Abstract
A convenient method for the synthesis of 2-oxo-acetamidines from methyl ketones using aromatic amines and DMF as nitrogen sources is reported via copper-catalyzed C(sp3)-H amidination. Various methyl ketones react readily with aromatic amines and DMF, producing 2-oxo-acetamidines in yields of 47 to 92%. This protocol features the simultaneous formation of C-N and C[double bond, length as m-dash]N bonds using DMF and aromatic amines as two different nitrogen sources. It thus provides an efficient approach to construct acyclic amidines via three C(sp3)-H bond amidination. Based on the preliminary experiments, a plausible mechanism of this transformation is disclosed.
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Affiliation(s)
- Dianke Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Wei He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Jiang Xiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Yao Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Yongjia Guo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Qiang Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Cancheng Guo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
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16
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Potassium Iodide/ Tert
-Butyl Hydroperoxide Mediated Sequential Oxidative Amidation of Ethylarenes - A Direct Approach to α-Ketoamides and Amides. ChemistrySelect 2019. [DOI: 10.1002/slct.201803936] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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17
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Lai M, Wu Z, Wang Y, Zheng Y, Zhao M. Selective synthesis of aryl thioamides and aryl-α-ketoamides from α-oxocarboxylic acids and tetraalkylthiuram disulfides: an unexpected chemoselectivity from aryl sulfonyl chlorides. Org Chem Front 2019. [DOI: 10.1039/c8qo01127c] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Tosyl chloride-controlled generation of thioamides and α-ketoamides via base-promoted decarboxylative reaction of α-oxocarboxylic acids with tetraalkylthiuram disulfides has been established.
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Affiliation(s)
- Miao Lai
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province
- College of Tobacco Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Zhiyong Wu
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province
- College of Tobacco Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Yizhi Wang
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province
- College of Tobacco Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Ying Zheng
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province
- College of Tobacco Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Mingqin Zhao
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province
- College of Tobacco Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
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18
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Wang C, Geng X, Zhao P, Zhou Y, Wu YD, Wu AX. Employing thiocyanate salts as a nitrogen source via CN bond cleavage: divergent synthesis of α-ketoamides and 2-acyloxazoles. Org Chem Front 2019. [DOI: 10.1039/c9qo00570f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A switchable procedure for the synthesis of α-ketoamides and 2-acyloxazoles from aryl methyl ketones and thiocyanate salts is reported.
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Affiliation(s)
- Can Wang
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - You Zhou
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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19
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Li PG, Zhu H, Fan M, Yan C, Shi K, Chi XW, Zou LH. Copper-catalyzed coupling of anthranils and α-keto acids: direct synthesis of α-ketoamides. Org Biomol Chem 2019; 17:5902-5907. [DOI: 10.1039/c9ob00822e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Copper-catalyzed coupling of α-keto acids with anthranils is reported for the synthesis of α-ketoamides bearing an aldehyde group via N–O/C–O bond cleavages and C–N bond formation.
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Affiliation(s)
- Ping-Gui Li
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Hao Zhu
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Min Fan
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Cheng Yan
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Kai Shi
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Xi-Wen Chi
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Liang-Hua Zou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
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20
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Li J, He S, Zhang K, Quan Z, Shan Q, Sun Z, Wang B. UV Assisted High‐Efficient Synthesis of α‐Ketoamides using Air Promoted by A Non‐Metal Catalyst in Aqueous Solution. ChemCatChem 2018. [DOI: 10.1002/cctc.201801365] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jianhui Li
- Key Laboratory of Advanced Materials of Tropical Island Resources Ministry of EducationHainan University Haikou 570228 P.R. China
| | - Shaopo He
- Key Laboratory of Advanced Materials of Tropical Island Resources Ministry of EducationHainan University Haikou 570228 P.R. China
| | - Kuan Zhang
- Key Laboratory of Advanced Materials of Tropical Island Resources Ministry of EducationHainan University Haikou 570228 P.R. China
| | - Ziyi Quan
- Key Laboratory of Advanced Materials of Tropical Island Resources Ministry of EducationHainan University Haikou 570228 P.R. China
| | - Qiheng Shan
- Key Laboratory of Advanced Materials of Tropical Island Resources Ministry of EducationHainan University Haikou 570228 P.R. China
| | - Zhongliang Sun
- Key Laboratory of Advanced Materials of Tropical Island Resources Ministry of EducationHainan University Haikou 570228 P.R. China
| | - Bo Wang
- Key Laboratory of Advanced Materials of Tropical Island Resources Ministry of EducationHainan University Haikou 570228 P.R. China
- State Key Lab of Marine Resource Utilizations in South China SeaHainan University Haikou 570228 P.R. China
- Institute of Chemical Engineering College of Materials and Chemical EngineeringHainan University Haikou 570228 P.R. China
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21
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Han T, Wang Y, Li HL, Luo X, Deng WP. Synthesis of Polysubstituted 3-Aminothiophenes from Thioamides and Allenes via Tandem Thio-Michael Addition/Oxidative Annulation and 1,2-Sulfur Migration. J Org Chem 2018; 83:1538-1542. [DOI: 10.1021/acs.joc.7b02616] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Teng Han
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yu Wang
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Hong-Liang Li
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiaoyan Luo
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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22
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Kumar Y, Jaiswal Y, Shaw M, Kumar A. Metal-Free Catalyst-Controlled Chemoselective Synthesis of Aryl α
-Ketoesters and Primary α
-Ketoamides from Aryl Acetimidates. ChemistrySelect 2017. [DOI: 10.1002/slct.201701322] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yogesh Kumar
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
| | - Yogesh Jaiswal
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
| | - Mukta Shaw
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
| | - Amit Kumar
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
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23
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Liu F, Liu Y, Chen Y, Sun Z, Wang B. Catalyst-Free and One-Pot Procedure for Fast Formation of α-Ketoamides Using α-Oxocarboxylic Acids and Amines at Room Temperature. ChemistrySelect 2017. [DOI: 10.1002/slct.201700923] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Fuyan Liu
- Key Laboratory of Advanced Materials of Tropical Island Resources (Hainan University); Ministry of Education; 58# Renmin AVE. Haikou 570228 PR China
- State Key Lab of Marine Resource Utilisation in South China Sea; Hainan University; 58# Renmin AVE. Haikou 570228 PR China
| | - Yaxu Liu
- Key Laboratory of Advanced Materials of Tropical Island Resources (Hainan University); Ministry of Education; 58# Renmin AVE. Haikou 570228 PR China
- State Key Lab of Marine Resource Utilisation in South China Sea; Hainan University; 58# Renmin AVE. Haikou 570228 PR China
| | - Yiping Chen
- Key Laboratory of Advanced Materials of Tropical Island Resources (Hainan University); Ministry of Education; 58# Renmin AVE. Haikou 570228 PR China
- State Key Lab of Marine Resource Utilisation in South China Sea; Hainan University; 58# Renmin AVE. Haikou 570228 PR China
| | - Zhongliang Sun
- Key Laboratory of Advanced Materials of Tropical Island Resources (Hainan University); Ministry of Education; 58# Renmin AVE. Haikou 570228 PR China
- State Key Lab of Marine Resource Utilisation in South China Sea; Hainan University; 58# Renmin AVE. Haikou 570228 PR China
| | - Bo Wang
- Key Laboratory of Advanced Materials of Tropical Island Resources (Hainan University); Ministry of Education; 58# Renmin AVE. Haikou 570228 PR China
- State Key Lab of Marine Resource Utilisation in South China Sea; Hainan University; 58# Renmin AVE. Haikou 570228 PR China
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