1
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Sujansky SJ, Hoteling GA, Bandar JS. A strategy for the controllable generation of organic superbases from benchtop-stable salts. Chem Sci 2024; 15:10018-10026. [PMID: 38966380 PMCID: PMC11220602 DOI: 10.1039/d4sc02524e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 05/07/2024] [Indexed: 07/06/2024] Open
Abstract
Organic superbases are a distinct class of strong base that enable numerous modern reaction applications. Despite their great synthetic potential, widespread use and study of superbases are limited by their air sensitivity and difficult preparation. To address this, we report air-stable carboxylate salts of BTPP and P2-t-Bu phosphazene superbases that, when added to solution with an epoxide, spontaneously generate freebase. These systems function as effective precatalysts and stoichiometric prereagents for superbase-promoted addition, substitution and polymerization reactions. In addition to improving the synthesis, shelf stability, handling and recycling of phosphazenes, this approach enables precise regulation of the rate of base generation in situ. The activation strategy effectively mimics manual slow addition techniques, allowing for control over a reaction's rate or induction period and improvement of reactions that require strong base but are also sensitive to its presence, such as Pd-catalyzed coupling reactions.
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Affiliation(s)
- Stephen J Sujansky
- Department of Chemistry, Colorado State University Fort Collins Colorado 80523 USA
| | - Garrett A Hoteling
- Department of Chemistry, Colorado State University Fort Collins Colorado 80523 USA
| | - Jeffrey S Bandar
- Department of Chemistry, Colorado State University Fort Collins Colorado 80523 USA
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2
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Kuo CH, Hsieh WT, Yang YH, Hwang TL, Cheng YS, Lin YA. Cesium Carbonate Promoted Direct Amidation of Unactivated Esters with Amino Alcohol Derivatives. J Org Chem 2024; 89:4958-4970. [PMID: 38523317 PMCID: PMC11002823 DOI: 10.1021/acs.joc.4c00162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/13/2024] [Accepted: 03/18/2024] [Indexed: 03/26/2024]
Abstract
Cesium carbonate promoted direct amidation of unactivated esters with amino alcohols was developed without the use of transition-metal catalysts and coupling reagents. This method enabled the synthesis of several serine-containing oligopeptides and benzamide derivatives with yields up to 90%. The methodology proceeds under mild reaction conditions and exhibits no racemization for most naturally occurring amino acid substrates. The reaction demonstrates good compatibility with primary alkyl and benzyl esters and broad tolerance for a range of amino acid substrates with nonpolar and protected side chains. The hydroxy group on the amine nucleophile was found to be critical for the reaction to be successful. A likely mechanism involving cesium coordination to the substrates enabling the subsequent proximity-driven acyl transfer was proposed. The practicality of this approach was demonstrated in the preparation of a biologically active nicotinamide derivative in a reasonable yield.
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Affiliation(s)
- Chih-Hung Kuo
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Wen-Tsai Hsieh
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Ya-Hsu Yang
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Teng-Li Hwang
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Yu-Shan Cheng
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Yuya A. Lin
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Department
of Medicinal and Applied Chemistry, Kaohsiung
Medical University, Kaohsiung 807, Taiwan
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3
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Takahashi N, Takahashi A, Shimada N. Hydroxy-directed peptide bond formation from α-amino acid-derived inert esters enabled by boronic acid catalysis. Chem Commun (Camb) 2024; 60:448-451. [PMID: 38088060 DOI: 10.1039/d3cc04856j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
A boronic acid-catalyzed peptide bond formation from α-amino acid methyl esters is described. The catalysis showed high chemoselectivity for β-hydroxy-α-amino esters, affording the peptides in high to excellent yields with high functional group tolerance. This hydroxy-directed peptide bond formation could be applicable to oligopeptide syntheses. This is the first successful example of organoboron-catalyzed peptide bond formation from α-amino acid-derived inert esters.
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Affiliation(s)
- Naoya Takahashi
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Airi Takahashi
- Laboratory of Organic Chemistry for Molecular Transformations, Department of Chemistry and the Institute of Natural Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan.
| | - Naoyuki Shimada
- Laboratory of Organic Chemistry for Molecular Transformations, Department of Chemistry and the Institute of Natural Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan.
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4
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Adhikari S, Bhujbal S, Paik MJ, Lee W. Enantioseparation and molecular modeling study of chiral amines as three naphthaldimine derivatives using amylose or cellulose trisphenylcarbamate chiral stationary phases. Chirality 2023; 35:29-39. [PMID: 36323631 DOI: 10.1002/chir.23513] [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: 06/27/2022] [Revised: 10/08/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022]
Abstract
This study describes the enantioseparation of three chiral amines as naphthaldimine derivatives, using normal phase HPLC with amylose and cellulose tris(3,5-dimethylphenylcarbamate) chiral stationary phases (CSPs). Three chiral amines were derivatized using three structurally similar naphthaldehyde derivatizing agents, and the enantioselectivity of the CSPs toward the derivatives was examined. The degree of enantioseparation and resolution was affected by the amylose or cellulose-derived CSPs and aromatic moieties as well as a kind of chiral amine. Especially, efficient enantiomer separation was observed for 2-hydroxynapthaldimine derivatives on cellulose-derived CSPs. Molecular docking studies of three naphthaldimine derivatives of leucinol on cellulose tris(3,5-dimethylphenylcarbamate) were performed to estimate the binding energies and conformations of the CSP-analyte complexes. The obtained binding energies were in good agreement with the experimentally determined enantioseparation and elution order.
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Affiliation(s)
- Suraj Adhikari
- College of Pharmacy, Chosun University, Gwangju, South Korea
| | - Swapnil Bhujbal
- Department of Biomedical Sciences, College of Medicine, Chosun University, Gwangju, South Korea
| | - Man-Jeong Paik
- College of Pharmacy, Sunchon National University, Suncheon, South Korea
| | - Wonjae Lee
- College of Pharmacy, Chosun University, Gwangju, South Korea
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5
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Elwood JL, Henry MC, Lopez-Fernandez JD, Mowat JM, Boyle M, Buist B, Livingstone K, Jamieson C. Functionalized Tetrazoles as Latent Active Esters in the Synthesis of Amide Bonds. Org Lett 2022; 24:9491-9496. [PMID: 36524745 PMCID: PMC9806851 DOI: 10.1021/acs.orglett.2c03971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We report the use of N-2,4-dinitrophenyltetrazoles as latent active esters (LAEs) in the synthesis of amide bonds. Activating the tetrazole generates an HOBt-type active ester without the requirement for exogenous coupling agents. The methodology was widely applicable to a range of substrates, with up to quantitative yields obtained. The versatility and functional group tolerance were exemplified with the one-step synthesis of various pharmaceutical agents and the N-acylation of resin-bound peptides.
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6
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Mukherjee A, Nad P, Gupta K, Sen A. Mechanistic Understanding of KOtBu-Mediated Direct Amidation of Esters with Anilines: An Experimental Study and Computational Approach. Chem Asian J 2022; 17:e202200800. [PMID: 36048008 DOI: 10.1002/asia.202200800] [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: 07/31/2022] [Revised: 08/22/2022] [Indexed: 11/12/2022]
Abstract
A sustainable and cost-effective protocol has been reported for the synthesis of amide bonds from unactivated esters and non-nucleophilic amines promoted by potassium tert -butoxide under aerobic conditions. The reaction proceeds under relatively mild conditions, encompassing wide substrate scope. A combined experimental and quantum chemical study has been performed to shed light on the mechanism, which implied that a radical pathway is operating for the present protocol.
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Affiliation(s)
- Arup Mukherjee
- Indian Institute of Technology Bhilai, Chemistry, GEC Campus, Raipur, 492015, Raipur, INDIA
| | - Pinaki Nad
- IIT Bhilai: Indian Institute of Technology Bhilai, Chemistry, INDIA
| | - Kriti Gupta
- IIT Bhilai: Indian Institute of Technology Bhilai, Chemistry, INDIA
| | - Anik Sen
- GITAM Institute of Science: Gandhi Institute of Technology and Management Institute of Science, Chemistry, INDIA
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7
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Alfano AI, Lange H, Brindisi M. Amide Bonds Meet Flow Chemistry: A Journey into Methodologies and Sustainable Evolution. CHEMSUSCHEM 2022; 15:e202102708. [PMID: 35015338 PMCID: PMC9304223 DOI: 10.1002/cssc.202102708] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/11/2022] [Indexed: 06/03/2023]
Abstract
Formation of amide bonds is of immanent importance in organic and synthetic medicinal chemistry. Its presence in "traditional" small-molecule active pharmaceutical ingredients, in linear or cyclic oligo- and polypeptidic actives, including pseudopeptides, has led to the development of dedicated synthetic approaches for the formation of amide bonds starting from, if necessary, suitably protected amino acids. While the use of solid supported reagents is common in traditional peptide synthesis, similar approaches targeting amide bond formation in continuous-flow mode took off more significantly, after a first publication in 2006, only a couple of years ago. Most efforts rely upon the transition of traditional approaches in flow mode, or the combination of solid-phase peptide synthesis principles with flow chemistry, and advantages are mainly seen in improving space-time yields. This Review summarizes and compares the various approaches in terms of basic amide formation, peptide synthesis, and pseudopeptide generation, describing the technological approaches and the advantages that were generated by the specific flow approaches. A final discussion highlights potential future needs and perspectives in terms of greener and more sustainable syntheses.
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Affiliation(s)
- Antonella Ilenia Alfano
- SPOTS-Lab – Sustainable Pharmaceutical and Organic Technology and Synthesis LaboratoryUniversity of Naples ‘Federico II', Department of PharmacyVia Domenico Montesano 4980131NaplesItaly
| | - Heiko Lange
- University of Milano-Bicocca Department of Earth and Environmental SciencesPiazza della Scienza 120126MilanItaly
| | - Margherita Brindisi
- SPOTS-Lab – Sustainable Pharmaceutical and Organic Technology and Synthesis LaboratoryUniversity of Naples ‘Federico II', Department of PharmacyVia Domenico Montesano 4980131NaplesItaly
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8
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Yamada T, Watanabe Y, Okamoto S. 6-Halo-2-pyridone as an efficient organocatalyst for ester aminolysis. RSC Adv 2021; 11:24588-24593. [PMID: 35481026 PMCID: PMC9036873 DOI: 10.1039/d1ra04651a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 07/07/2021] [Indexed: 01/19/2023] Open
Abstract
It was found that 6-halo-2-pyridones catalysed ester aminolysis in which not only reactive aryl esters but also relatively less reactive methyl and benzyl esters could be used as a substrate. The reaction could be performed without strictly dry and anaerobic conditions and the 6-chloro-2-pyridone catalyst could be recovered quantitatively after reaction. The method could be applied to dipeptide synthesis from methyl or benzyl esters of amino acids, where a high enantiomeric purity of the products was maintained. The mechanism involving dual activation of ester and amine substrates through hydrogen bonding between catalyst and substrates is proposed where 6-halo-2-pyridones act as a bifunctional Brønsted acid/base catalyst. 6-Halo-2-pyridones effectively catalyse ester aminolysis as bifunctional catalysts. This reaction did not require any special conditions and was operationally convenient.![]()
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Affiliation(s)
- Takeshi Yamada
- Department of Materials and Life Chemistry, Kanagawa University 3-27-1 Rokkakubashi, Kanagawa-ku Yokohama 221-8686 Japan
| | - Yusuke Watanabe
- Department of Materials and Life Chemistry, Kanagawa University 3-27-1 Rokkakubashi, Kanagawa-ku Yokohama 221-8686 Japan
| | - Sentaro Okamoto
- Department of Materials and Life Chemistry, Kanagawa University 3-27-1 Rokkakubashi, Kanagawa-ku Yokohama 221-8686 Japan
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9
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Fu Z, Wang X, Tao S, Bu Q, Wei D, Liu N. Manganese Catalyzed Direct Amidation of Esters with Amines. J Org Chem 2021; 86:2339-2358. [DOI: 10.1021/acs.joc.0c02478] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhengqiang Fu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, People’s Republic of China
| | - Xinghua Wang
- College of Chemistry, Center of Computational Chemistry, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Sheng Tao
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, People’s Republic of China
| | - Qingqing Bu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, People’s Republic of China
| | - Donghui Wei
- College of Chemistry, Center of Computational Chemistry, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Ning Liu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, People’s Republic of China
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10
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Chhatwal AR, Lomax HV, Blacker AJ, Williams JMJ, Marcé P. Direct synthesis of amides from nonactivated carboxylic acids using urea as nitrogen source and Mg(NO 3) 2 or imidazole as catalysts. Chem Sci 2020; 11:5808-5818. [PMID: 32832055 PMCID: PMC7416778 DOI: 10.1039/d0sc01317j] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/16/2020] [Indexed: 12/19/2022] Open
Abstract
A new method for the direct synthesis of primary and secondary amides from carboxylic acids is described using Mg(NO3)2·6H2O or imidazole as a low-cost and readily available catalyst, and urea as a stable, and easy to manipulate nitrogen source. This methodology is particularly useful for the direct synthesis of primary and methyl amides avoiding the use of ammonia and methylamine gas which can be tedious to manipulate. Furthermore, the transformation does not require the employment of coupling or activating agents which are commonly required.
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Affiliation(s)
- A Rosie Chhatwal
- Department of Chemistry , University of Bath , Claverton Down , Bath , BA2 7AY , UK .
| | - Helen V Lomax
- Centre for Sustainable Chemical Technologies , University of Bath , Claverton Down , Bath , BA2 7AY , UK
| | - A John Blacker
- Institute of Process Research & Development , School of Chemistry , University of Leeds , Woodhouse Lane , Leeds LS2 9JT , UK
| | - Jonathan M J Williams
- Department of Chemistry , University of Bath , Claverton Down , Bath , BA2 7AY , UK .
| | - Patricia Marcé
- Department of Chemistry , University of Bath , Claverton Down , Bath , BA2 7AY , UK .
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11
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Li Z, Guo C, Chen J, Yao Y, Luo Y. Facile amidation of esters with aromatic amines promoted by lanthanide tris (amide) complexes. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Zhao Li
- School of Material Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
- College of Chemistry, Chemical Engineering & Materials ScienceSoochow University Suzhou 215123 P. R. China
| | - Chenjun Guo
- School of Material Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
| | - Jue Chen
- School of Biological and Chemical Engineering, Ningbo Institute of TechnologyZhejiang University Ningbo 315100 P. R. China
| | - Yingming Yao
- College of Chemistry, Chemical Engineering & Materials ScienceSoochow University Suzhou 215123 P. R. China
| | - Yunjie Luo
- School of Material Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
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12
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Douša M. Chiral separation of aliphatic primary amino alcohols as o
-phthaldialdehyde/mercaptoethanol derivatives on polysaccharide-based chiral stationary phases. Chirality 2019; 31:202-210. [DOI: 10.1002/chir.23047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/13/2018] [Accepted: 12/16/2018] [Indexed: 11/07/2022]
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13
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Ben Halima T, Masson-Makdissi J, Newman SG. Nickel-Catalyzed Amide Bond Formation from Methyl Esters. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808560] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Taoufik Ben Halima
- Centre for Catalysis Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie-Curie Ottawa Ontario K1N 6N5 Canada
| | - Jeanne Masson-Makdissi
- Centre for Catalysis Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie-Curie Ottawa Ontario K1N 6N5 Canada
| | - Stephen G. Newman
- Centre for Catalysis Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie-Curie Ottawa Ontario K1N 6N5 Canada
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14
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Ben Halima T, Masson-Makdissi J, Newman SG. Nickel-Catalyzed Amide Bond Formation from Methyl Esters. Angew Chem Int Ed Engl 2018; 57:12925-12929. [PMID: 30113123 DOI: 10.1002/anie.201808560] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 08/10/2018] [Indexed: 11/10/2022]
Abstract
Despite being one of the most important and frequently run chemical reactions, the synthesis of amide bonds is accomplished primarily by wasteful methods that proceed by stoichiometric activation of one of the starting materials. We report a nickel-catalyzed procedure that can enable diverse amides to be synthesized from abundant methyl ester starting materials, producing only volatile alcohol as a stoichiometric waste product. In contrast to acid- and base-mediated amidations, the reaction is proposed to proceed by a neutral cross coupling-type mechanism, opening up new opportunities for direct, efficient, chemoselective synthesis.
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Affiliation(s)
- Taoufik Ben Halima
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Jeanne Masson-Makdissi
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Stephen G Newman
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario, K1N 6N5, Canada
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15
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Li Z, Wang C, Wang Y, Yuan D, Yao Y. Heterobimetallic Lanthanide-Sodium Alkoxides Catalyze the Amidation of Esters. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800070] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhao Li
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus; Soochow University; Suzhou 215123 P. R. China
| | - Chao Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus; Soochow University; Suzhou 215123 P. R. China
| | - Yaorong Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus; Soochow University; Suzhou 215123 P. R. China
| | - Dan Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus; Soochow University; Suzhou 215123 P. R. China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus; Soochow University; Suzhou 215123 P. R. China
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16
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Muramatsu W, Tsuji H, Yamamoto H. Catalytic Peptide Synthesis: Amidation of N-Hydroxyimino Esters. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04244] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Wataru Muramatsu
- Molecular Catalyst Research
Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
| | - Hiroaki Tsuji
- Molecular Catalyst Research
Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
| | - Hisashi Yamamoto
- Molecular Catalyst Research
Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
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17
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McPherson CG, Cooper AK, Bubliauskas A, Mulrainey P, Jamieson C, Watson AJB. A Multicomponent Route to Functionalized Amides and Oxazolidinones. Org Lett 2017; 19:6736-6739. [PMID: 29193973 DOI: 10.1021/acs.orglett.7b03470] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An organobase-mediated multicomponent reaction of unactivated esters, epoxides, and amines is reported, furnishing functionalized amide derivatives. A wide range of substrates are tolerated under the reaction conditions, including chiral epoxides, which react with no erosion of enantiopurity. Facile modification of the method through replacing the ester derivative with dimethyl carbonate enables access to the corresponding oxazolidinone derivatives.
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Affiliation(s)
- Christopher G McPherson
- Department of Pure & Applied Chemistry, University of Strathclyde , 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Alasdair K Cooper
- Department of Pure & Applied Chemistry, University of Strathclyde , 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Andrius Bubliauskas
- Department of Pure & Applied Chemistry, University of Strathclyde , 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Paul Mulrainey
- Department of Pure & Applied Chemistry, University of Strathclyde , 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Craig Jamieson
- Department of Pure & Applied Chemistry, University of Strathclyde , 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Allan J B Watson
- Department of Pure & Applied Chemistry, University of Strathclyde , 295 Cathedral Street, Glasgow G1 1XL, U.K
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18
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Yoshida T, Kawamura S, Nakata K. Chemoselective N-acetylation of primary aliphatic amines promoted by pivalic or acetic acid using ethyl acetate as an acetyl donor. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.02.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Zhang H, Su Y, Wang KH, Huang D, Li J, Hu Y. Synthesis of N-acetoxy-N-arylamides via diacetoxyiodobenzene promoted double acylation reaction of hydroxylamines with aldehydes. Org Biomol Chem 2017; 15:5337-5344. [DOI: 10.1039/c7ob00855d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile and efficient synthesis of N-acetoxy-N-arylamides through double acylations of hydroxylamines with aldehydes and diacetoxyiodobenzene is reported. The yields of the products are good to excellent.
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Affiliation(s)
- Huaiyuan Zhang
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - Yingpeng Su
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - Ke-Hu Wang
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - Danfeng Huang
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - Jun Li
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - Yulai Hu
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
- State Key Laboratory of Applied Organic Chemistry
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20
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Sanz Sharley DD, Williams JMJ. Acetic acid as a catalyst for the N-acylation of amines using esters as the acyl source. Chem Commun (Camb) 2017; 53:2020-2023. [DOI: 10.1039/c6cc09023k] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amides are prepared in good from amines using catalytic acetic acid and ester as the acyl source.
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21
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McPherson CG, Caldwell N, Jamieson C, Simpson I, Watson AJB. Amidation of unactivated ester derivatives mediated by trifluoroethanol. Org Biomol Chem 2017; 15:3507-3518. [DOI: 10.1039/c7ob00593h] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A catalytic amidation protocol mediated by 2,2,2-trifluoroethanol has been developed, facilitating the condensation of unactivated esters and amines, furnishing both secondary and tertiary amides.
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Affiliation(s)
| | - Nicola Caldwell
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
| | - Craig Jamieson
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
| | - Iain Simpson
- AstraZeneca
- Oncology Innovative Medicines
- Cambridge
- UK
| | - Allan J. B. Watson
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
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22
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Li B, Zhang J, Yang BB, Li L, Yang XX. Ring-locking strategy facilitating determination of absolute optical purity of 2-amino-1-butanol by reverse-phase high-performance liquid chromatography. RSC Adv 2017. [DOI: 10.1039/c7ra09362d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A concise and efficient reverse-phase high-performance liquid chromatography (RPLC) method has been established for absolute optical purity assay of 2-amino-1-butanol, which is an important synthetic intermediate of various drugs.
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Affiliation(s)
- Bo Li
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Jie Zhang
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Bei-Bei Yang
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Li Li
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Xiao-Xiao Yang
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
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23
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Wojtas KP, Lu JY, Krahn D, Arndt HD. Regioselective Functionalization of 3-Hydroxy-pyridine Carboxylates by Neighboring Group Assistance. Chem Asian J 2016; 11:2859-2862. [DOI: 10.1002/asia.201601111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 08/24/2016] [Indexed: 11/05/2022]
Affiliation(s)
- K. Philip Wojtas
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstraße 10 07743 Jena Germany
| | - Jin-Yong Lu
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstraße 10 07743 Jena Germany
| | - Daniel Krahn
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstraße 10 07743 Jena Germany
| | - Hans-Dieter Arndt
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstraße 10 07743 Jena Germany
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24
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Abstract
The present review offers an overview of nonclassical (e.g., with no pre- or in situ activation of a carboxylic acid partner) approaches for the construction of amide bonds. The review aims to comprehensively discuss relevant work, which was mainly done in the field in the last 20 years. Organization of the data follows a subdivision according to substrate classes: catalytic direct formation of amides from carboxylic and amines ( section 2 ); the use of carboxylic acid surrogates ( section 3 ); and the use of amine surrogates ( section 4 ). The ligation strategies (NCL, Staudinger, KAHA, KATs, etc.) that could involve both carboxylic acid and amine surrogates are treated separately in section 5 .
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Affiliation(s)
- Renata Marcia de Figueiredo
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Jean-Simon Suppo
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Jean-Marc Campagne
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
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25
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Ali MA, Siddiki SMAH, Kon K, Shimizu KI. A Heterogeneous Niobium(V) Oxide Catalyst for the Direct Amidation of Esters. ChemCatChem 2015. [DOI: 10.1002/cctc.201500601] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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26
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Lenstra DC, Nguyen DT, Mecinović J. Zirconium-catalyzed direct amide bond formation between carboxylic esters and amines. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.066] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Microwave-promoted direct amidation of unactivated esters catalyzed by heteropolyanion-based ionic liquids under solvent-free conditions. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.118] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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28
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Guo H, Wang Y, Du GF, Dai B, He L. N-Heterocyclic carbene-catalysed amidation of vinyl esters with aromatic amines. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.071] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Caldwell N, Harms JE, Partin KM, Jamieson C. Rational Design of a Novel AMPA Receptor Modulator through a Hybridization Approach. ACS Med Chem Lett 2015; 6:392-6. [PMID: 25893038 DOI: 10.1021/ml5004553] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 02/11/2015] [Indexed: 12/22/2022] Open
Abstract
The α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors are a family of glutamate ion channels of considerable interest in excitatory neurotransmission and associated disease processes. Here, we demonstrate how exploitation of the available X-ray crystal structure of the receptor ligand binding domain enabled the development of a new class of AMPA receptor positive allosteric modulators (7) through hybridization of known ligands (5 and 6), leading to a novel chemotype with promising pharmacological properties.
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Affiliation(s)
- Nicola Caldwell
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
| | - Jonathan E. Harms
- Department
of Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523-1617, United States
| | - Kathryn M. Partin
- Department
of Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523-1617, United States
| | - Craig Jamieson
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
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30
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Yuan L, Wang Z, Trenor NM, Tang C. Robust Amidation Transformation of Plant Oils into Fatty Derivatives for Sustainable Monomers and Polymers. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00091] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Liang Yuan
- Department of Chemistry and
Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Zhongkai Wang
- Department of Chemistry and
Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Nathan M. Trenor
- Department of Chemistry and
Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Chuanbing Tang
- Department of Chemistry and
Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
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31
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Ramesh P, Fadnavis NW. Ammonium Nitrate: A Biodegradable and Efficient Catalyst for the Direct Amidation of Esters under Solvent-free Conditions. CHEM LETT 2015. [DOI: 10.1246/cl.140846] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Perla Ramesh
- Natural Products Chemistry Division, Indian Institute of Chemical Technology
| | - Nitin W. Fadnavis
- Natural Products Chemistry Division, Indian Institute of Chemical Technology
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32
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Nguyen DT, Lenstra DC, Mecinović J. Chemoselective calcium-catalysed direct amidation of carboxylic esters. RSC Adv 2015. [DOI: 10.1039/c5ra18288c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cheap, non-toxic and environmentally benign CaI2 catalyses direct amide bond formation between unactivated carboxylic esters and primary amines in excellent yields.
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Affiliation(s)
- D. Thao Nguyen
- Institute for Molecules and Materials
- Radboud University Nijmegen
- 6525 AJ Nijmegen
- The Netherlands
| | - Danny C. Lenstra
- Institute for Molecules and Materials
- Radboud University Nijmegen
- 6525 AJ Nijmegen
- The Netherlands
| | - Jasmin Mecinović
- Institute for Molecules and Materials
- Radboud University Nijmegen
- 6525 AJ Nijmegen
- The Netherlands
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33
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Hernández-Fernández E, Sánchez-Lara PP, Ordóñez M, Ramírez-Marroquín OA, Avalos-Alanís FG, López-Cortina S, Jiménez-Pérez VM, Ibarra-Rivera TR. Synthesis of β-hydroxyacetamides from unactivated ethyl acetates under base-free conditions and microwave irradiation. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2014.11.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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34
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Caldwell N, Jamieson C, Simpson I, Watson AJB. Catalytic amidation of unactivated ester derivatives mediated by trifluoroethanol. Chem Commun (Camb) 2015; 51:9495-8. [DOI: 10.1039/c5cc02895g] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical, catalytic protocol for amidation of unactivated esters has been developed using cheap and readily available reagents.
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Affiliation(s)
- Nicola Caldwell
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
| | - Craig Jamieson
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
| | - Iain Simpson
- AstraZeneca
- Oncology Innovative Medicines
- Darwin Building
- Cambridge
- UK
| | - Allan J. B. Watson
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
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35
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Caldwell N, Campbell PS, Jamieson C, Potjewyd F, Simpson I, Watson AJB. Amidation of Esters with Amino Alcohols Using Organobase Catalysis. J Org Chem 2014; 79:9347-54. [DOI: 10.1021/jo501929c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Nicola Caldwell
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
| | - Peter S. Campbell
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
| | - Craig Jamieson
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
| | - Frances Potjewyd
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
| | - Iain Simpson
- Oncology
Innovative Medicines, AstraZeneca, Mereside, Alderley Park, Macclesfield SK10 4TG, U.K
| | - Allan J. B. Watson
- Department
of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral
Street, Glasgow G1 1XL, U.K
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36
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Morimoto H, Fujiwara R, Shimizu Y, Morisaki K, Ohshima T. Lanthanum(III) Triflate Catalyzed Direct Amidation of Esters. Org Lett 2014; 16:2018-21. [DOI: 10.1021/ol500593v] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hiroyuki Morimoto
- Graduate
School of Pharmaceutical
Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Risa Fujiwara
- Graduate
School of Pharmaceutical
Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yuhei Shimizu
- Graduate
School of Pharmaceutical
Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Kazuhiro Morisaki
- Graduate
School of Pharmaceutical
Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Takashi Ohshima
- Graduate
School of Pharmaceutical
Sciences, Kyushu University, Fukuoka, 812-8582, Japan
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37
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Garg P, Milton MD. Sodium carbonate mediated regioselective synthesis of novel N-(hydroxyalkyl)cinnamamides. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.10.086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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