1
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Tian C, Sun Q, Wang J, Chen Q, Wen Z, Borzov M, Nie W. E-Stereospecific 1,1-Carboboration of Terminal Arylalkynes with [IB(C 6F 5) 3] –. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202205029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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2
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Xiao D, Liu H, Zhou P, Zhang J, Liu W. I 2/ t-Butylhydroperoxide (TBHP)-Mediated Oxo-amidation of Alkenes with N, N-Dimethylformamide: A Facile Access to Aryl- α-ketoamide Derivatives. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202110005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Junfei L, Yuling H, Yanhong L, Jianxin C. Synthesis of β-Nitroamide Derivatives Based on Carbamoylsilane. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202206014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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4
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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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5
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He Z, Wu D, Vessally E. Cross-dehydrogenative Coupling Reactions Between Formamidic C(sp 2)-H and X-H (X = C, O, N) Bonds. Top Curr Chem (Cham) 2020; 378:46. [PMID: 32975616 DOI: 10.1007/s41061-020-00309-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 09/10/2020] [Indexed: 02/05/2023]
Abstract
In the last decade, the scientific community has witnessed explosive growth in research on the direct carbamoylation of C-H and X-H (X = N, O) bonds with formamides via cross-dehydrogenative coupling reactions. This novel approach is an effective means of preparing a variety of carboxamide, carbamate as well as urea derivatives, which are prevalent in medicinal chemistry and natural product synthesis. This review elaborates the most important advances and developments in the field, with an emphasis on the reaction patterns and mechanisms.
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Affiliation(s)
- Zhe He
- School of Environment, Liaoning University, Shenyang, 110036, China
| | - Dan Wu
- School of Environment, Liaoning University, Shenyang, 110036, China.
| | - Esmail Vessally
- Department of Chemistry, Payame Noor University, Tehran, Iran
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6
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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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7
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Yang Y, Zhong G, Fan J, Liu Y. Metal-Free C=C Double Bond Cleavage on Enaminones for the Synthesis of α-Ketoamides by Free-Radical Aerobic Oxygenation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900660] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yiming Yang
- College of Chemistry and Chemical Engineering; Jiangxi Normal University; 330022 Nanchang P. R. China
| | - Guofeng Zhong
- College of Chemistry and Chemical Engineering; Jiangxi Normal University; 330022 Nanchang P. R. China
| | - Junfen Fan
- Department of Nephrology; First Affiliated Hospital of Zhejiang Chinese Medical University; 310006 Hangzhou P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering; Jiangxi Normal University; 330022 Nanchang P. R. China
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8
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Huang W, Li X, Song X, Luo Q, Li Y, Dong Y, Liang D, Wang B. Benzylarylation of N-Allyl Anilines: Synthesis of Benzylated Indolines. J Org Chem 2019; 84:6072-6083. [PMID: 31021621 DOI: 10.1021/acs.joc.9b00237] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An unprecedented benzylic C-H functionalization of methyl arenes across unactivated alkenes is presented. In the presence of MnCl2·4H2O and di- tert-butyl peroxide, N-allyl anilines underwent benzylation/cyclization cascade to give benzylated indolines, which are a previously unmet synthetic goal. This protocol features simple operation, broad substrate scope, and great exo selectivity.
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Affiliation(s)
- Wenzhong Huang
- Department of Chemistry , Kunming University , Kunming 650214 , China
| | - Xiulan Li
- Department of Chemistry , Kunming University , Kunming 650214 , China
| | - Xuemei Song
- Department of Chemistry , Kunming University , Kunming 650214 , China
| | - Qing Luo
- Department of Chemistry , Kunming University , Kunming 650214 , China
| | - Yanping Li
- Department of Chemistry , Kunming University , Kunming 650214 , China
| | - Ying Dong
- College of Chemistry, Chemical Engineering and Materials Science , Shandong Normal University , Jinan 250014 , China
| | - Deqiang Liang
- Department of Chemistry , Kunming University , Kunming 650214 , China.,Yunnan Engineering Technology Research Center for Plastic Films , Kunming 650214 , China
| | - Baoling Wang
- Department of Chemistry , Kunming University , Kunming 650214 , China.,Yunnan Engineering Technology Research Center for Plastic Films , Kunming 650214 , China
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9
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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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10
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Laha JK, Patel KV, Tummalapalli KSS, Hunjan MK. Palladium-Catalyzed Serendipitous Synthesis of Arylglyoxylic Amides from Arylglyoxylates and N, N-Dialkylamides in the Presence of Halopyridines. ACS OMEGA 2018; 3:8787-8793. [PMID: 31459011 PMCID: PMC6645305 DOI: 10.1021/acsomega.8b00894] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 07/24/2018] [Indexed: 06/10/2023]
Abstract
A palladium-catalyzed synthesis of arylglyoxylic amides by the reaction of arylglyoxylates and N,N-dialkylamides in the presence of a 2,3-dihalopyridine has been realized for the first time. An anticipated 2,3-diaroylpyridine did not form in this reaction. The current study unveils an unprecedented role of 2,3-dihalopyridine toward this amidation. Our mechanistic study reveals that the arylglyoxylate could react with halopyridine to form a traceless activated pyridyl ester of arylglyoxylic acid, which upon subsequent reaction with amino surrogate, N,N-dialkylamides could form the arylglyoxylic amides.
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11
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Le Bras J, Muzart J. Recent Uses of N, N-Dimethylformamide and N, N-Dimethylacetamide as Reagents. Molecules 2018; 23:E1939. [PMID: 30081462 PMCID: PMC6222515 DOI: 10.3390/molecules23081939] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 07/30/2018] [Accepted: 07/31/2018] [Indexed: 01/23/2023] Open
Abstract
N,N-Dimethylformamide and N,N-dimethylacetamide are multipurpose reagents which deliver their own H, C, N and O atoms for the synthesis of a variety of compounds under a number of different experimental conditions. The review mainly highlights the corresponding literature published over the last years.
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Affiliation(s)
- Jean Le Bras
- Institut de Chimie Moléculaire de Reims, CNRS-Université de Reims Champagne-Ardenne, B.P. 1039, 51687 Reims CEDEX 2, France.
| | - Jacques Muzart
- Institut de Chimie Moléculaire de Reims, CNRS-Université de Reims Champagne-Ardenne, B.P. 1039, 51687 Reims CEDEX 2, France.
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12
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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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13
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Zhang JR, Liao YY, Deng JC, Tang ZL, Xu YL, Xu L, Tang RY. DABCO-Promoted Decarboxylative Acylation: Synthesis of α-Keto and α,β-Unsaturated Amides or Esters. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201600591] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jun-Rong Zhang
- Department of Applied Chemistry; College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Yan-Yan Liao
- Department of Applied Chemistry; College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Jian-Chao Deng
- Department of Applied Chemistry; College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Zi-Liang Tang
- Department of Applied Chemistry; College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Yuan-Lin Xu
- Department of Applied Chemistry; College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Li Xu
- Department of Applied Chemistry; College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Ri-Yuan Tang
- Department of Applied Chemistry; College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
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14
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Ramanathan M, Kuo CK, Liu ST. One pot synthesis of α-ketoamides from ethylarenes and amines: a metal free difunctionalization strategy. Org Biomol Chem 2016; 14:11446-11453. [PMID: 27878198 DOI: 10.1039/c6ob02361d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
One-pot and metal free synthesis of α-ketoamides has been described through in situ generation of aryl ketones from easily available ethylarenes followed by amidation with various amines. This multiple oxidation protocol involves catalytic I2-pyridine-TBHP (t-butyl hydroperoxide) mediated oxidative benzylic carbonylation and sequential NaI-TBHP mediated oxidative amidation without using any solvent.
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Affiliation(s)
- Mani Ramanathan
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan.
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15
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Ma F, Liu H, Chen J. Convenient method for the preparation of secondary α-ketoamides via aminocarbonylation of acid chlorides with carbamoylsilane. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Kumar Y, Shaw M, Thakur R, Kumar A. Copper(II)-Mediated Aerobic Oxidation of Benzylimidates: Synthesis of Primary α-Ketoamides. J Org Chem 2016; 81:6617-25. [DOI: 10.1021/acs.joc.6b01262] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yogesh Kumar
- 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
| | - Rima Thakur
- Department
of Chemistry, National Institute of Technology Patna, Patna 800005, Bihar, India
| | - Amit Kumar
- Department
of Chemistry, Indian Institute of Technology Patna, Bihta 801103, Bihar, India
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17
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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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18
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Liu W, Xu S, Chen C, Zhu Z. An Expedient Approach to Synthesize Aryl-α-ketoamides from Acetophenones and N,N-Dimethylformamide. ChemistrySelect 2016. [DOI: 10.1002/slct.201600053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Weibing Liu
- College of Chemical Engineering; Guangdong University of Petrochemical Technology; 2 Guandu Road Maoming 525000 P. R. China
| | - Songsen Xu
- College of Chemical Engineering; Guangdong University of Petrochemical Technology; 2 Guandu Road Maoming 525000 P. R. China
| | - Cui Chen
- College of Chemical Engineering; Guangdong University of Petrochemical Technology; 2 Guandu Road Maoming 525000 P. R. China
| | - Zhibo Zhu
- TCM-Integrated Cancer center of southern medical university; 13 Shiliugang Road, Haizhu district Guangzhou 510315 P. R. China
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19
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De Risi C, Pollini GP, Zanirato V. Recent Developments in General Methodologies for the Synthesis of α-Ketoamides. Chem Rev 2016; 116:3241-305. [DOI: 10.1021/acs.chemrev.5b00443] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Carmela De Risi
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | - Gian Piero Pollini
- Istituto Universitario
di Studi Superiori “IUSS−Ferrara 1391”, Via delle Scienze 41/b, 44121 Ferrara, Italy
| | - Vinicio Zanirato
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
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