1
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Bandopadhyay N, Paramanik K, Sarkar G, Roy S, Panda SJ, Purohit CS, Biswas B, Das HS. Phenalenyl-ruthenium synergism for effectual catalytic transformations of primary amines to amides. Dalton Trans 2024; 53:13795-13804. [PMID: 39105500 DOI: 10.1039/d4dt01760a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
The synthesis of amides holds great promise owing to their impeccable contributions as building blocks for highly valued functional derivatives. Herein, we disclose the design, synthesis and crystal structure of a mixed-ligand ruthenium(II) complex, [Ru(η6-Cym)(O,O-PLY)Cl], (1) where Cym = 1-isopropyl-4-methyl-benzene and O,O-PLY = deprotonated form of 9-hydroxy phenalenone (HO,O-PLY). The complex catalyzes the aerobic oxidation of various primary amines (RCH2NH2) to value-added amides (RCONH2) with excellent selectivity and efficiency under relatively mild conditions with common organic functional group tolerance. Structural, electrochemical, spectroscopic, and computational studies substantiate that the synergism between the redox-active ruthenium and π-Lewis acidic PLY moieties facilitate the catalytic oxidation of amines to amides. Additionally, the isolation and characterization of key intermediates during catalysis confirm two successive dehydrogenation steps leading to nitrile, which subsequently transform to the desired amide through hydration. The present synthetic approach is also extended to substitution-dependent tuning at PLY to tune the electronic nature of 1 and to assess substituent-mediated catalytic performance. The effect of substitution at the PLY moiety (5th position) leads to structural isomers, which were further evaluated for the catalytic transformations of amine to amides under similar reaction conditions.
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Affiliation(s)
- Nilaj Bandopadhyay
- Department of Chemistry, University of North Bengal, Darjeeling 734013, India.
| | | | - Gayetri Sarkar
- Department of Chemistry, University of North Bengal, Darjeeling 734013, India.
| | - Suvojit Roy
- Department of Chemistry, University of North Bengal, Darjeeling 734013, India.
| | - Subhra Jyoti Panda
- Department of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar, Orissa-751005, India
| | - Chandra Shekhar Purohit
- Department of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar, Orissa-751005, India
| | - Bhaskar Biswas
- Department of Chemistry, University of North Bengal, Darjeeling 734013, India.
| | - Hari Sankar Das
- Department of Chemistry, University of North Bengal, Darjeeling 734013, India.
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2
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Gui QW, Ying S, Liu X, Wang J, Xiao X, Liu Z, Wang X, Shang Y, Li Q. BF 3·OEt 2-mediated transamidation of unprotected primary amides under solvent-free conditions. Org Biomol Chem 2024; 22:6605-6611. [PMID: 39087323 DOI: 10.1039/d4ob00875h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
A BF3·OEt2-mediated transamidation between unactivated amides and amines is reported, enabling access to diverse secondary and tertiary amides under transition-metal-free and solvent-free conditions. The operationally simple procedure provides a novel manifold for converting amide-amide bonds with excellent chemoselectivity. In particular, a series of amides including challenging thioamides enable direct transamidation to products with modest to excellent yields. Meanwhile, additional experiments were conducted to elucidate the mechanism of this transformation, and a plausible mechanism was proposed based on the results and related literature.
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Affiliation(s)
- Qing-Wen Gui
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, Hunan 410128, People's Republic of China.
| | - Shengneng Ying
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, Hunan 410128, People's Republic of China.
| | - Xin Liu
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, Hunan 410128, People's Republic of China.
| | - Jianfang Wang
- College of Science, National University of Defense Technology, Changsha 410128, People's Republic of China
| | - Xuliang Xiao
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, Hunan 410128, People's Republic of China.
| | - Zhuoliang Liu
- College of Science, National University of Defense Technology, Changsha 410128, People's Republic of China
| | - Xia Wang
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, Hunan 410128, People's Republic of China.
| | - Yanxue Shang
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, Hunan 410128, People's Republic of China.
| | - Qiang Li
- College of Agronomy, Hunan Agricultural University, Changsha 410128, People's Republic of China
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3
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Chen W, Huang Z, Chen H, Liu M. A Novel Approach of Electrocatalytic Deamination From Aromatic Amide to Diarylimide on Ni-PTFE Modified Electrode. Chemistry 2024; 30:e202400276. [PMID: 38757422 DOI: 10.1002/chem.202400276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/26/2024] [Accepted: 05/15/2024] [Indexed: 05/18/2024]
Abstract
A hydrophobic Ni-PTFE modified electrode has been prepared by constant current and cathodic electroplating with a nickel sheet as substrate in a PTFE suspension. Then the Ni-PTFE modified electrode was used for electroreduction from aromatic amide to diarylimide. The electrochemical characterizations such as cyclic voltammogram, EIS, polarization curves, and electrode stability have been carried out by electrochemical workstation. The structure of the electroreduction product diarylimide was characterized by 1H NMR, FT-IR, MS(Mass Spectrum), and EA(Elemental Analyzer). Based on the hydrophobicity of the electrode, an approach suggested that the phenyl ketone radical may be formed by electroreductive deamination at the cathode. With the construction of C-N bond by the radical coupling, the electrocatalytic reduction may be comprised of a one-electron process including an ECC (Electrochemical-Chemical-Chemical) process. The electroreduction of aromatic amide to diarylimide may be controlled by both charge migration and concentration polarization. Electrocatalytic reduction of aromatic amides on Ni-PTFE modified electrodes is all well conversion ratio.
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Affiliation(s)
- Wenjun Chen
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou Fujian, 350007, China
| | - Ziyang Huang
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou Fujian, 350007, China
| | - Hongyan Chen
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou Fujian, 350007, China
| | - Min Liu
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou Fujian, 350007, China
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4
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Abbasi F, Sardarian AR. Direct additive-free N-formylation and N-acylation of anilines and synthesis of urea derivatives using green, efficient, and reusable deep eutectic solvent ([ChCl][ZnCl 2] 2). Sci Rep 2024; 14:7206. [PMID: 38532063 DOI: 10.1038/s41598-024-57608-8] [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: 01/17/2024] [Accepted: 03/20/2024] [Indexed: 03/28/2024] Open
Abstract
In the current report, we introduce a simple, mild efficient and green protocol for N-formylation and N-acetylation of anilines using formamide, formic acid, and acetic acid as inexpensive, nontoxic, and easily available starting materials just with heating along stirring in [ChCl][ZnCl2]2 as a durable, reusable deep eutectic solvent (DES), which acts as a dual catalyst and solvent system to produce a wide range of formanilides and acetanilides. Also, a variety of unsymmetrical urea derivatives were synthesized by the reaction of phenyl isocyanate with a range of amine compounds using this benign DES in high to excellent yields. [ChCl][ZnCl2]2 showed good recycling and reusability up to four runs without considerable loss of its catalytic activity.
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Affiliation(s)
- Fatemeh Abbasi
- Chemistry Department, College of Sciences, Shiraz University, Shiraz, 71946-84795, Iran
| | - Ali Reza Sardarian
- Chemistry Department, College of Sciences, Shiraz University, Shiraz, 71946-84795, Iran.
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5
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Kumar Chouhan K, Nad P, Mukherjee A. Dual Role of TiO(acac) 2 as a Reagent and an Activator/Catalyst: A Study on the Solvent Dependent Product Formation. Chem Asian J 2023; 18:e202300738. [PMID: 37782026 DOI: 10.1002/asia.202300738] [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: 08/22/2023] [Revised: 09/30/2023] [Accepted: 10/02/2023] [Indexed: 10/03/2023]
Abstract
The dual operation of a chemical species in synthetic chemistry is an intriguing and relatively unexplored phenomenon. The application of such a species is expected to reduce the use of multiple reaction partners and catalysts/activators. Herein, we report a simple and easy-to-use protocol for the twin application of TiO(acac)2 , as a reagent and an activator to synthesize β-enamino ketones with amines in acetonitrile. The same early transition metal precursor when employed in N,N-dimethylformamide with the amines, resulted in the formation of the substituted amides. Both reactions were explored with various substrates to check the viability of the present protocol. Moreover, experimental studies were conducted to understand the mechanism of both reactions.
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Affiliation(s)
- Kishor Kumar Chouhan
- Department of Chemistry, Indian Institute of Technology Bhilai, GEC Campus, Sejbahar, Raipur, 492015, Chhattisgarh, India
| | - Pinaki Nad
- Department of Chemistry, Indian Institute of Technology Bhilai, GEC Campus, Sejbahar, Raipur, 492015, Chhattisgarh, India
| | - Arup Mukherjee
- Department of Chemistry, Indian Institute of Technology Bhilai, GEC Campus, Sejbahar, Raipur, 492015, Chhattisgarh, India
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6
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Wu J, Zhang Y, Yang J, Yu L, Zhang S, Zhou J, Li Z, Xu X, Xu H. Decarboxylative N-Formylation of Amines with Glyoxylic Acid Promoted by H 2O 2. J Org Chem 2023; 88:13590-13597. [PMID: 37690058 DOI: 10.1021/acs.joc.3c01270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
A novel method for the synthesis of formamides through the decarboxylative N-formylation of amines with glyoxylic acid has been developed. This transformation provides an efficient protocol for the synthesis of various formamides with moderate to excellent yields, and it can accommodate a wide range of functional groups under metal free and base free conditions. In addition, the large-scale experiments and high chemoselectivity have shown great potential application of this strategy.
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Affiliation(s)
- Jiwei Wu
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Yuting Zhang
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Jingyi Yang
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Lingxiang Yu
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Shaoqing Zhang
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Jie Zhou
- School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Institute of Industry & Equipment Technology, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Zirong Li
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Xiaolan Xu
- School of Medical Science, Anhui Medical University, Hefei, 230009, P. R. China
| | - Huajian Xu
- School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Institute of Industry & Equipment Technology, Hefei University of Technology, Hefei, 230009, P. R. China
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7
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Singh J, Sharma S, Prakasham AP, Rajaraman G, Ghosh P. Accessing Bioactive Hydrazones by the Hydrohydrazination of Terminal Alkynes Catalyzed by Gold(I) Acyclic Aminooxy Carbene Complexes and Their Gold(I) Arylthiolato and Gold(III) Tribromo Derivatives: A Combined Experimental and Computational Study. ACS OMEGA 2023; 8:21042-21073. [PMID: 37323414 PMCID: PMC10268297 DOI: 10.1021/acsomega.3c01925] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/05/2023] [Indexed: 06/17/2023]
Abstract
Hydrohydrazination of terminal alkynes with hydrazides yielding hydrazones 5-14 were successfully catalyzed by a series of gold(I) acyclic aminooxy carbene complexes of the type [{(4-R2-2,6-t-Bu2-C6H2O)(N(R1)2)}methylidene]AuCl, where R2 = H, R1 = Me (1b); R2 = H, R1 = Cy (2b); R2 = t-Bu, R1 = Me (3b); R2 = t-Bu, R1 = Cy (4b). The mass spectrometric evidence corroborated the existence of the catalytically active solvent-coordinated [(AAOC)Au(CH3CN)]SbF6 (1-4)A species and the acetylene-bound [(AAOC)Au(HC≡CPhMe)]SbF6 (3B) species of the proposed catalysis cycle. The hydrohydrazination reaction was successfully employed in synthesizing several bioactive hydrazone compounds (15-18) with anticonvulsant properties using a representative precatalyst (2b). The DFT studies favored the 4-ethynyltoluene (HC≡CPhMe) coordination pathway over the p-toluenesulfonyl hydrazide (NH2NHSO2C6H4CH3) coordination pathway, and that proceeded by a crucial intermolecular hydrazide-assisted proton transfer step. The gold(I) complexes (1-4)b were synthesized from the {[(4-R2-2,6-t-Bu2-C6H2O)(N(R1)2)]CH}+OTf- (1-4)a by treatment with (Me2S)AuCl in the presence of NaH as a base. The reactivity studies of (1-4)b yielded the gold(III) [{(4-R2-2,6-t-Bu2-C6H2O)(N(R1)2)}methylidene]AuBr3 (1-4)c complexes upon reaction with molecular bromine and the gold(I) perfluorophenylthiolato derivatives, [{(4-R2-2,6-t-Bu2-C6H2O)(N(R1)2)}methylidene]AuSC6F5 (1-4)d, upon treatment with C6F5SH.
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8
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Álvarez-Constantino A, Álvarez-Pérez A, Varela JA, Sciortino G, Ujaque G, Saá C. Chemoselective Ru-Catalyzed Oxidative Lactamization vs Hydroamination of Alkynylamines: Insights from Experimental and Density Functional Theory Studies. J Org Chem 2022; 88:1185-1193. [PMID: 36579612 PMCID: PMC9872091 DOI: 10.1021/acs.joc.2c02770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The Ru-catalyzed intramolecular oxidative amidation (lactamization) of aromatic alkynylamines with 4-picoline N-oxide as an external oxidant has been developed. This chemoselective process is very efficient to achieve medium-sized ε- and ζ-lactams (seven- and eight-membered rings) but not for the formation of common δ-lactams (six-membered rings). DFT studies unveiled the capital role of the chain length between the amine and the alkyne functionalities: the longer the connector, the more favored the lactamization process vs hydroamination.
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Affiliation(s)
- Andrés
M. Álvarez-Constantino
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago
de Compostela, Spain
| | - Andrea Álvarez-Pérez
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago
de Compostela, Spain
| | - Jesús A. Varela
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago
de Compostela, Spain
| | - Giuseppe Sciortino
- Departament
de Química and Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universitat Autònoma
de Barcelona, 08193 Cerdanyola del Vallès, Catalonia, Spain,
| | - Gregori Ujaque
- Departament
de Química and Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universitat Autònoma
de Barcelona, 08193 Cerdanyola del Vallès, Catalonia, Spain,
| | - Carlos Saá
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago
de Compostela, Spain,
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9
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Practical povidone iodine catalyzed transamidation from primary amides and amines. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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10
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Nouali F, Sousa JLC, Albuquerque HMT, Mendes RF, Paz FAA, Saher L, Kibou Z, Choukchou-Braham N, Talhi O, Silva AMS. Microwave-Assisted Synthesis of 4,6-Disubstituted Isoindoline-1,3-diones by Diels-Alder Reactions. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Chouhan KK, Chowdhury D, Mukherjee A. Transamidation of aromatic amines with formamides using cyclic dihydrogen tetrametaphosphate. Org Biomol Chem 2022; 20:7929-7935. [PMID: 36155708 DOI: 10.1039/d2ob00882c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amide fragments are found to be one of the key constituents in a wide range of natural products and pharmacologically active compounds. Herein, we report a simple and efficient procedure for transamidation with a cyclic dihydrogen tetrametaphosphate. The protocol is simple, does not require any additives, and encompasses a broad substrate scope. To comprehend the mechanism of the present methodology, detailed spectroscopic and kinetic studies were undertaken.
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Affiliation(s)
- Kishor Kumar Chouhan
- Indian Institute of Technology Bhilai, GEC Campus, Sejbahar, Raipur-492015, Chhattisgarh, India.
| | - Deep Chowdhury
- Indian Institute of Technology Bhilai, GEC Campus, Sejbahar, Raipur-492015, Chhattisgarh, India.
| | - Arup Mukherjee
- Indian Institute of Technology Bhilai, GEC Campus, Sejbahar, Raipur-492015, Chhattisgarh, India.
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12
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Gudun KA, Tussupbayev S, Slamova A, Khalimon AY. Hydroboration of isocyanates: cobalt-catalyzed vs. catalyst-free approaches. Org Biomol Chem 2022; 20:6821-6830. [PMID: 35968649 DOI: 10.1039/d2ob01192a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroboration of isocyanates with HBPin was demonstrated using both catalytic and catalyst-free approaches. In arene solvents, the reactions employed the commercially available and bench-stable Co(acac)2/dpephos (dpephos = bis[(2-diphenylphosphino)phenyl] ether) pre-catalyst and proved chemodivergent, showing the formation of either formamides or N-methylamines, depending on the concentration of HBPin and the reaction conditions used. Catalytic monohydroboration of isocyanates to formamides was found to be highly chemoselective, tolerating alkenes, alkynes, aryl halides, esters, carboxamides, nitriles, nitroarenes and heteroaromatic functionalities. The catalyst-free hydroboration reactions have been demonstrated in neat HBPin. Whereas monohydroboration proved less selective compared with Co(acac)2/dpephos-catalyzed transformations, selective deoxygenative hydroboration of isocyanates to N-methylamines was observed under catalyst-free conditions.
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Affiliation(s)
- Kristina A Gudun
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr. Avenue, Nur-Sultan 010000, Kazakhstan.
| | - Samat Tussupbayev
- Institute of Polymer Materials and Technologies, 3/1 Atyrau 1, Almaty 050019, Kazakhstan
| | - Ainur Slamova
- Core Facilities, Office of the Provost, Nazarbayev University, 53 Kabanbay Batyr. Avenue, Nur-Sultan 010000, Kazakhstan
| | - Andrey Y Khalimon
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr. Avenue, Nur-Sultan 010000, Kazakhstan. .,The Environment and Resource Efficiency Cluster (EREC), Nazarbayev University, 53 Kabanbay Batyr. Avenue, Nur-Sultan 010000, Kazakhstan
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13
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Rajan IAPS, Subramani M, Pushparathinam G, Rajendran S. Environmentally Benign Transamidation Protocol for Weakly Nucleophilic Aromatic Amines with N‐Acyl‐2‐piperidinones: Catalyst, Additive, Base and Solvent‐Free Condition. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200378] [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)
| | | | | | - Saravanakumar Rajendran
- Vellore Institute of Technology, Chennai Chemistry Division Vandalur-Kelambakkam Road 6200127 Chennai INDIA
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14
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Sureshbabu P, Azeez S, Pattanaik K, Sabiah S, Kandasamy J. Synthesis of N‐Cbz Amides and Their Applications in the Transamidation Reactions at Room Temperature. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200076] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Popuri Sureshbabu
- IIT BHU: Indian Institute of Technology BHU Varanasi Chemistry Department of Chemistry, IIT BHU, VaranaVaranasi 221005 Varanasi INDIA
| | - Sadaf Azeez
- IIT BHU: Indian Institute of Technology BHU Varanasi Chemistry INDIA
| | | | | | - Jeyakumar Kandasamy
- Indian Institute of Technology (BHU) Chemistry Varanasi 221005 Varanasi INDIA
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15
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Krasavin M, Grintsevich S, Sapegin A. Significant Broadening of the Substrate Scope for the Hydrated Imidazoline Ring Expansion (HIRE) via the Use of Lithium Hexamethyldisilazide. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1719882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractSubstrates that are insufficiently activated towards the hydrated imidazoline ring expansion (HIRE) process have been previously found to deliver exclusively the products of aminoalkyl side-chain ring expansion. Attempted reversal of the process by thermal activation towards HIRE failed. We have found that for such problematic substrates the HIRE-type ring expansion can be effectively achieved by applying lithium hexamethyldisilazide (LHMDS) in toluene. LHMDS is thought to promote intramolecular transamidation, which leads to ring-expanded 10- and 11-membered heterocyclic products in modest to good yields. The process significantly broadens the substrate scope amenable to the HIRE strategy.
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Affiliation(s)
- Mikhail Krasavin
- Institute of Chemistry, Saint Petersburg State University
- Immanuel Kant Baltic Federal University
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16
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Muzart J. A Journey from June 2018 to October 2021 with N, N-Dimethylformamide and N, N-Dimethylacetamide as Reactants. Molecules 2021; 26:6374. [PMID: 34770783 PMCID: PMC8587108 DOI: 10.3390/molecules26216374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 02/01/2023] Open
Abstract
A rich array of reactions occur using N,N-dimethylformamide (DMF) or N,N-dimethylacetamide (DMAc) as reactants, these two amides being able to deliver their own H, C, N, and O atoms for the synthesis of a variety of compounds. This account highlights the literature published since June 2018, completing previous reviews by the author.
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Affiliation(s)
- Jacques Muzart
- Institut de Chimie Moléculaire de Reims, CNRS-Université de Reims Champagne-Ardenne, B.P. 1039, CEDEX 2, 51687 Reims, France
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17
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Zhang Y, Ye X, Liu S, Chen W, Majeed I, Liu T, Zhu Y, Zeng Z. NaOTs-promoted transition metal-free C-N bond cleavage to form C-X (X = N, O, S) bonds. Org Biomol Chem 2021; 19:8566-8571. [PMID: 34550144 DOI: 10.1039/d1ob01409a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multifunctional transformation of amide C-N bond cleavage is reported. The protocol applies to benzamide, thioamide, alcohols, and mercaptan under similar reaction conditions catalyzed by NaOTs. It is noteworthy that NaOTs can not only be recycled and reused for up to three cycles without significant loss in catalytic activity, but also catalyze gram-grade reactions. This study provides a novel solution with mild conditions and a simple procedure for transformation of multiple amides.
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Affiliation(s)
- Yuqi Zhang
- College of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China.
| | - Xiaojing Ye
- College of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China.
| | - Sicheng Liu
- College of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China.
| | - Wei Chen
- College of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China.
| | - Irfan Majeed
- College of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China.
| | - Tingting Liu
- College of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China.
| | - Yulin Zhu
- College of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China.
| | - Zhuo Zeng
- College of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China. .,Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences, China
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18
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Lan CB, Auclair K. Ammonium Chloride‐Promoted Rapid Synthesis of Monosubstituted Ureas under Microwave Irradiation. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chunling Blue Lan
- Department of Chemistry McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
| | - Karine Auclair
- Department of Chemistry McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
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19
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Singh S, Popuri S, Junaid QM, Sabiah S, Kandasamy J. Diversification of α-ketoamides via transamidation reactions with alkyl and benzyl amines at room temperature. Org Biomol Chem 2021; 19:7134-7140. [PMID: 34355726 DOI: 10.1039/d1ob01021b] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A wide range of N-tosyl α-ketoamides underwent transamidation with various alkyl amines in the absence of a catalyst, base, or additive. On the other hand, transamidation in N-Boc α-ketoamides was achieved in the presence of Cs2CO3. The reactions proceeded at room temperature and provided good to excellent yields of transamidation products under the optimized conditions. Broad substrate scope, functional group tolerance and quick conversions are the important features of the developed methodology.
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Affiliation(s)
- Shweta Singh
- Department of chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh-221005, India.
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20
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Joseph D, Oh MS, Jayaraman A, Lee S. Amides Activation: Transition Metal‐Free Coupling Between
CN
Activated Amides and Enolizable Amides. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12371] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Devaneyan Joseph
- Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea
| | - Min Seok Oh
- Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea
| | - Aravindan Jayaraman
- Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea
| | - Sunwoo Lee
- Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea
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21
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Mali AS, Indalkar K, Chaturbhuj GU. Solvent-free, Efficient Transamidation of Carboxamides with Amines Catalyzed by Recyclable Sulfated Polyborate Catalyst. ORG PREP PROCED INT 2021. [DOI: 10.1080/00304948.2021.1908047] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Anil S. Mali
- Institute of Chemical Technology, Matunga, Mumbai, India
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22
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Yu X, Chen Y, Luo Q, Li Y, Dai P, Xia Q, Liu F, Zhang W. Selective Radical N−H Activation: the Unprecedented Harnessing of Formamide with S
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for N−S−N Bonds Construction. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiang Yu
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Yu Chen
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Qian Luo
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Yufei Li
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Peng Dai
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Qing Xia
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Fang Liu
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Wei‐Hua Zhang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
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23
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Xin Y, Shen X, Liu H, Han B. Selective Utilization of N-acetyl Groups in Chitin for Transamidation of Amines. FRONTIERS IN CHEMICAL ENGINEERING 2021. [DOI: 10.3389/fceng.2020.634983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The selective transformation of chitin into various renewable N-containing chemicals and medicines has attracted increasing attention. However, the N-acetyl groups in chitin construct strong hydrogen bond networks, which restricts its depolymerization and transformation. The selective conversion of robust chitin commonly requires considerable base catalysts to remove the N-acetyl group as a byproduct in advance, which is non-compliance with the principle of atomic economy. Herein, for the first time we demonstrate a novel approach to achieve the selective utilization of the N-acetyl group in chitin for transamidation of chitin with amines. A series of amine derivatives, mainly including aliphatic amine, cyclic amine and functionalized aromatic amine, could be selectively converted into the corresponding amide products frequently found in pharmaceuticals. Furthermore, the solid residue after removing the acetyl group (denoted as De-chitin) with the sufficient exposure of -NH2 groups as a solid base catalyst shows excellent performance in the aldol condensation reaction of furfural and acetone to produce fuel precursors. Our process provides a strategy that exploiting every functional group adequately in substrates to obtain value-added chemicals.
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24
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Liu J, Zhao C. Lactic Acid-Catalyzed Transamidation Reactions of Carboxamides with Amines. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202010010] [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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25
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Joseph D, Park MS, Lee S. Metal-free transamidation of benzoylpyrrolidin-2-one and amines under aqueous conditions. Org Biomol Chem 2021; 19:6227-6232. [PMID: 34225358 DOI: 10.1039/d1ob00967b] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
N-Acyl lactam amides, such as benzoylpyrrolidin-2-one, benzoylpiperidin-2-one, and benzoylazepan-2-one reacted with amines in the presence of DTBP and TBAI to afford the transamidated products in good yields. The reactions were conducted under aqueous conditions and good functional group tolerance was achieved. Both aliphatic and aromatic primary amines displayed good activity under metal-free conditions. A radical reaction pathway is proposed.
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Affiliation(s)
- Devaneyan Joseph
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea.
| | - Myeong Seong Park
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea.
| | - Sunwoo Lee
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea.
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26
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Barday M, Blieck R, Ruyet L, Besset T. Remote trifluoromethylthiolation of alcohols under visible light. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131153] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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27
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Vijayapritha S, Viswanathamurthi P. New half-sandwich (η6-p-cymene)ruthenium(II) complexes with benzothiazole hydrazone Schiff base ligand: Synthesis, structural characterization and catalysis in transamidation of carboxamide with primary amines. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121555] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Yadav JK, Yadav P, Awasthi SK, Agarwal A. Efficient N-formylation of primary aromatic amines using novel solid acid magnetic nanocatalyst. RSC Adv 2020; 10:41229-41236. [PMID: 35519203 PMCID: PMC9057804 DOI: 10.1039/d0ra07476d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/29/2020] [Indexed: 01/23/2023] Open
Abstract
Sulfonic acid functionalized over biguanidine fabricated silica-coated heterogeneous magnetic nanoparticles (NP@SO3H) have been synthesized, well characterized and explored for the first time, as an efficient and recyclable catalyst for N-formylation of primary amines under mild reaction conditions. Exploiting the magnetic nature of Fe3O4, the prepared catalyst was readily recovered from the reaction mixture via an external magnet. The catalyst can be reused for up to six cycles without any substantial loss of catalytic activity. The cost effectiveness, simple methodology, wide substrate tolerance, excellent yield and easy work-up are the additional advantages of present catalytic system. Sulfonic acid functionalized over biguanidine fabricated silica-coated heterogeneous magnetic nanoparticles (NP@SO3H) have been synthesized, well characterized and explored for the first time, as an efficient and recyclable catalyst for N-formylation of primary amines under mild reaction conditions.![]()
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Affiliation(s)
- Jitendra Kumar Yadav
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University Varanasi UP India
| | - Priyanka Yadav
- Chemical Biology Laboratory, Department of Chemistry, University of Delhi Delhi Delhi-110007 India
| | - Satish K Awasthi
- Chemical Biology Laboratory, Department of Chemistry, University of Delhi Delhi Delhi-110007 India
| | - Alka Agarwal
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University Varanasi UP India
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29
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Cheng H, Chen C, Zhang R, Zhang JC, Zhang WY, He YQ, Gu YC. A Practical Approach for the Transamidation of N,N-Dimethyl Amides with Primary Amines Promoted by Sodium tert-Butoxide under Solvent-Free Conditions. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1705892] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractA practical sodium tert-butoxide (NaOtBu)-mediated protocol is disclosed for the transamidation of various N,N-dimethyl amides with primary amines to afford the corresponding amides in moderate to good yields at room temperature under solvent-free conditions. This protocol features a facile work-up procedure and good functional group compatibility, especially for N,N-dimethyl amides with long-chain alkyl groups and heteroatom-containing amines. Notably, a few representative gram-scale reactions proceed smoothly to furnish the desired amides in high yields, which demonstrates the potential of this process for further practical applications. Several control experiments are carried out and a plausible mechanism is provided.
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Affiliation(s)
- Hua Cheng
- Department of Chemical Engineering and Food Science
| | - Cheng Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
| | - Rui Zhang
- Department of Chemical Engineering and Food Science
| | | | - Wei-Yi Zhang
- Department of Chemical Engineering and Food Science
| | - Yu-Qing He
- Department of Chemical Engineering and Food Science
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30
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Huang HY, Lin XY, Yen SY, Liang CF. Facile access to N-formyl imide as an N-formylating agent for the direct synthesis of N-formamides, benzimidazoles and quinazolinones. Org Biomol Chem 2020; 18:5726-5733. [PMID: 32666985 DOI: 10.1039/d0ob01080d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
N-Formamide synthesis using N-formyl imide with primary and secondary amines with catalytic amounts of p-toluenesulfonic acid monohydrate (TsOH·H2O) is described. This reaction is performed in water without the use of surfactants. Moreover, N-formyl imide is efficiently synthesized using acylamidines with TsOH·H2O in water. In addition, N-formyl imide was successfully used as a carbonyl source in the synthesis of benzimidazole and quinazolinone derivatives. Notable features of N-formylation of amines by using N-formyl imide include operational simplicity, oxidant- and metal-free conditions, structurally diverse products, and easy applicability to gram-scale operation.
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Affiliation(s)
- Hsin-Yi Huang
- Department of Chemistry, National Chung Hsing University, Taichung, 402, Taiwan.
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31
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Peng X, Sun Z, Kuang P, Li L, Chen J, Chen J. Copper-Catalyzed Selective Arylation of Nitriles with Cyclic Diaryl Iodonium Salts: Direct Access to Structurally Diversified Diarylmethane Amides with Potential Neuroprotective and Anticancer Activities. Org Lett 2020; 22:5789-5795. [PMID: 32677838 DOI: 10.1021/acs.orglett.0c01829] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A novel, simple, and high-yielding approach for the preparation of diarylmethane amide derivatives has been developed by reacting cyclic diaryl iodonium salts with nitriles using CuCl as a catalyst. The procedure is efficient with high atom economy and a wide substrate range. Importantly, selective arylation of nitriles was obtained without affecting the phenyl amino/hydroxyl groups. Furthermore, two of the diarylmethane amides (3k, 3s) displayed excellent neuroprotective and anticancer activities.
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Affiliation(s)
- Xiaopeng Peng
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
| | - Zhiqiang Sun
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
| | - Peihua Kuang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
| | - Ling Li
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
| | - Jingxuan Chen
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
| | - Jianjun Chen
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510060, P.R. China
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32
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Patel KP, Gayakwad EM, Shankarling GS. Graphene Oxide as a Metal‐free Carbocatalyst for Direct Amide Synthesis from Carboxylic Acid and Amine Under Solvent‐Free Reaction Condition. ChemistrySelect 2020. [DOI: 10.1002/slct.202000870] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Khushbu P. Patel
- Department of Dyestuff Technology, Institute of Chemical Technology, N. P. Marg, Mat Department of Dyestuff Technology Institute of Chemical Technology, N. P. Marg, Matunga Mumbai 400019 India
| | - Eknath M. Gayakwad
- Department of Dyestuff Technology, Institute of Chemical Technology, N. P. Marg, Mat Department of Dyestuff Technology Institute of Chemical Technology, N. P. Marg, Matunga Mumbai 400019 India
| | - Ganapati S. Shankarling
- Department of Dyestuff Technology, Institute of Chemical Technology, N. P. Marg, Mat Department of Dyestuff Technology Institute of Chemical Technology, N. P. Marg, Matunga Mumbai 400019 India
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33
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A KHSO4 promoted tandem synthesis of 1,3,4-thiadiazoles from thiohydrazides and DMF derivatives. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152195] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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34
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Omprakash Rathi J, Subray Shankarling G. Recent Advances in the Protection of Amine Functionality: A Review. ChemistrySelect 2020. [DOI: 10.1002/slct.202000764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jyoti Omprakash Rathi
- Department of Dyestuff TechnologyInstitute of Chemical Technology N. P. Marg, Matunga (E) Mumbai 400 019 India
| | - Ganapati Subray Shankarling
- Department of Dyestuff TechnologyInstitute of Chemical Technology N. P. Marg, Matunga (E) Mumbai 400 019 India
- Department of Dyestuff TechnologyInstitute of Chemical Technology N. P. Marg, Matunga (E) Mumbai 400 019 India
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35
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Laclef S, Kolympadi Marković M, Marković D. Amide Synthesis by Transamidation of Primary Carboxamides. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707133] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The amide functionality is one of the most important and widely used groups in nature and in medicinal and industrial chemistry. Because of its importance and as the actual synthetic methods suffer from major drawbacks, such as the use of a stoichiometric amount of an activating agent, epimerization and low atom economy, the development of new and efficient amide bond forming reactions is needed. A number of greener and more effective strategies have been studied and developed. The transamidation of primary amides is particularly attractive in terms of atom economy and as ammonia is the single byproduct. This review summarizes the advancements in metal-catalyzed and organocatalyzed transamidation methods. Lewis and Brønsted acid transamidation catalysts are reviewed as a separate group. The activation of primary amides by promoter, as well as catalyst- and promoter-free protocols, are also described. The proposed mechanisms and key intermediates of the depicted transamidation reactions are shown.1 Introduction2 Metal-Catalyzed Transamidations3 Organocatalyzed Transamidations4 Lewis and Brønsted Acid Catalysis5 Promoted Transamidation of Primary Amides6 Catalyst- and Promoter-Free Protocols7 Conclusion
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Affiliation(s)
- Sylvain Laclef
- Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources (LG2A) UMR CNRS 7378 - Institut de Chimie de Picardie FR 3085, Université de Picardie Jules Verne
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36
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Erguven H, Keyzer EN, Arndtsen BA. A Versatile Approach to Dynamic Amide Bond Formation with Imine Nucleophiles. Chemistry 2020; 26:5709-5716. [PMID: 32155294 DOI: 10.1002/chem.202001140] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Indexed: 11/08/2022]
Abstract
Dynamic covalent chemistry has rapidly become an important approach to access supramolecular structures. While the products generated in these reactions are held together by covalent bonds, the reversible nature of the transformations can limit the utility of many these systems in creating robust materials. We describe herein a method to form stable and commonly employed amide bonds by exploiting the reversible coupling of imines and acyl chlorides. The reaction employs easily accessible reagents, is dynamic under ambient conditions, without catalysts, and can be trapped with simple hydrolysis. This offers an approach to create broad families of amide products under thermodynamic control, including the selective formation of amide macrocycles or polymers.
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Affiliation(s)
- Huseyin Erguven
- Department of Chemistry, McGill University, 801 Sherbrooke St. W, Montreal, Quebec, H3A0B8, Canada
| | - Evan N Keyzer
- Department of Chemistry, McGill University, 801 Sherbrooke St. W, Montreal, Quebec, H3A0B8, Canada
| | - Bruce A Arndtsen
- Department of Chemistry, McGill University, 801 Sherbrooke St. W, Montreal, Quebec, H3A0B8, Canada
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37
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Chen J, Xu M, Yu S, Xia Y, Lee S. Nickel-Catalyzed Claisen Condensation Reaction between Two Different Amides. Org Lett 2020; 22:2287-2292. [DOI: 10.1021/acs.orglett.0c00485] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jiajia Chen
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, P. R. China
| | - Man Xu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, P. R. China
| | - Subeen Yu
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, P. R. China
| | - Sunwoo Lee
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
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38
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Shoji T, Iida N, Yamazaki A, Ariga Y, Ohta A, Sekiguchi R, Nagahata T, Nagasawa T, Ito S. Synthesis of phthalimides cross-conjugated with an azulene ring, and their structural, optical and electrochemical properties. Org Biomol Chem 2020; 18:2274-2282. [PMID: 32150201 DOI: 10.1039/d0ob00164c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The preparation of phthalimides cross-conjugated with an azulene ring was established by a one-pot Diels-Alder reaction of the corresponding 2-aminofuran derivatives with several maleimides, without the isolation of the intermediately formed [4 + 2] cycloadducts. The structure, optical and electrochemical properties of the novel phthalimide derivatives were clarified by single-crystal X-ray analysis, UV/Vis and fluorescence spectra, spectroelectrochemistry and voltammetry experiments, and theoretical calculations. These results indicated that the substituents on the azulene ring greatly affect the optical and electrochemical properties of the molecules.
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Affiliation(s)
- Taku Shoji
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Nanami Iida
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Akari Yamazaki
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Yukino Ariga
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Akira Ohta
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Ryuta Sekiguchi
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Tatsuki Nagahata
- Graduate School of Science and Technology, Hirosaki University, Hirosaki 036-8561, Aomori, Japan
| | - Takuya Nagasawa
- Graduate School of Science and Technology, Hirosaki University, Hirosaki 036-8561, Aomori, Japan
| | - Shunji Ito
- Graduate School of Science and Technology, Hirosaki University, Hirosaki 036-8561, Aomori, Japan
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39
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Dai Z, Tian Q, Li Y, Shang S, Luo W, Wang X, Li D, Zhang Y, Li Z, Yuan J. Michael Addition Reaction Catalyzed by Imidazolium Chloride to Protect Amino Groups and Construct Medium Ring Heterocycles. Molecules 2019; 24:E4224. [PMID: 31757097 PMCID: PMC6930643 DOI: 10.3390/molecules24234224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 11/17/2022] Open
Abstract
An effective approach for amino protection and construction of a seven-membered ring has been developed. The method uses imidazolium chloride to carry out the Michael addition reaction at low temperatures and perform amino deprotection or construction of a seven-membered ring at high temperatures.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Jianyong Yuan
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (Z.D.); (Q.T.); (Y.L.); (S.S.); (W.L.); (X.W.); (D.L.); (Y.Z.); (Z.L.)
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40
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Beddoe RH, Andrews KG, Magné V, Cuthbertson JD, Saska J, Shannon-Little AL, Shanahan SE, Sneddon HF, Denton RM. Redox-neutral organocatalytic Mitsunobu reactions. Science 2019; 365:910-914. [DOI: 10.1126/science.aax3353] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 07/09/2019] [Indexed: 11/02/2022]
Abstract
Nucleophilic substitution reactions of alcohols are among the most fundamental and strategically important transformations in organic chemistry. For over half a century, these reactions have been achieved by using stoichiometric, and often hazardous, reagents to activate the otherwise unreactive alcohols. Here, we demonstrate that a specially designed phosphine oxide promotes nucleophilic substitution reactions of primary and secondary alcohols in a redox-neutral catalysis manifold that produces water as the sole by-product. The scope of the catalytic coupling process encompasses a range of acidic pronucleophiles that allow stereospecific construction of carbon-oxygen and carbon-nitrogen bonds.
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41
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Ghosh T, Jana S, Dash J. KOtBu-Promoted Transition-Metal-Free Transamidation of Primary and Tertiary Amides with Amines. Org Lett 2019; 21:6690-6694. [DOI: 10.1021/acs.orglett.9b02306] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Tridev Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Snehasish Jana
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Jyotirmayee Dash
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
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Bhawal BN, Morandi B. Catalytic Isofunctional Reactions—Expanding the Repertoire of Shuttle and Metathesis Reactions. Angew Chem Int Ed Engl 2019; 58:10074-10103. [DOI: 10.1002/anie.201803797] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Benjamin N. Bhawal
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim an der Ruhr Germany
- Laboratorium für Organische ChemieETH Zürich 8093 Zürich Switzerland
| | - Bill Morandi
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim an der Ruhr Germany
- Laboratorium für Organische ChemieETH Zürich 8093 Zürich Switzerland
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Yu S, Ho Song K, Lee S. Metal‐Free Transamidation of Primary Amides using Trimethylsilyl Chloride. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900216] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Subeen Yu
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
| | - Kwang Ho Song
- Department of Chemical & Biological EngineeringKorea University Seoul 02841 Republic of Korea
| | - Sunwoo Lee
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
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Chen J, Jia J, Guo Z, Zhang J, Xie M. NH4I-promoted N-acylation of amines via the transamidation of DMF and DMA under metal-free conditions. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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46
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Xu ZW, Xu WY, Pei XJ, Tang F, Feng YS. An efficient method for the N-formylation of amines under catalyst- and additive-free conditions. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Bhawal BN, Morandi B. Katalytische, isofunktionelle Reaktionen – Erweiterung des Repertoires an Shuttle‐ und Metathesereaktionen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201803797] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Benjamin N. Bhawal
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim an der Ruhr Deutschland
- Laboratorium für Organische ChemieETH Zürich 8093 Zürich Schweiz
| | - Bill Morandi
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim an der Ruhr Deutschland
- Laboratorium für Organische ChemieETH Zürich 8093 Zürich Schweiz
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Patel KP, Gayakwad EM, Patil VV, Shankarling GS. Graphene Oxide: A Metal‐Free Carbocatalyst for the Synthesis of Diverse Amides under Solvent‐Free Conditions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801673] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Khushbu P. Patel
- Department of Dyestuff TechnologyInstitute of Chemical Technology, N. P. Marg, Matunga, Mumbai – 400019 India
| | - Eknath M. Gayakwad
- Department of Dyestuff TechnologyInstitute of Chemical Technology, N. P. Marg, Matunga, Mumbai – 400019 India
| | - Vilas V. Patil
- Department of Dyestuff TechnologyInstitute of Chemical Technology, N. P. Marg, Matunga, Mumbai – 400019 India
| | - Ganapati S. Shankarling
- Department of Dyestuff TechnologyInstitute of Chemical Technology, N. P. Marg, Matunga, Mumbai – 400019 India
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Zhang F, Li L, Ma J, Gong H. MoS 2-Catalyzed transamidation reaction. Sci Rep 2019; 9:2536. [PMID: 30796297 PMCID: PMC6385372 DOI: 10.1038/s41598-019-39210-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 01/11/2019] [Indexed: 11/12/2022] Open
Abstract
The MoS2-catalyzed transamidation reaction with high yields using N,N-dimethylformamide and other amides as carbonyl sources is developed here. The protocol is simple, does not require any additive such as acid, base, ligand, etc., and encompasses a broad substrate scope for primary, secondary and heterocyclic amines. Moreover, the acetylation and propanylation of amines also can be achieved with good to excellent yield by this strategy.
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Affiliation(s)
- Feng Zhang
- College of Science, Hunan Agricultural University, Changsha, 410128, China.
| | - Lesong Li
- The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China
| | - Juan Ma
- The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China
| | - Hang Gong
- The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China.
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Jia M, Zhang H, Lin Y, Chen D, Chen Y, Xia Y. Consecutive Lossen rearrangement/transamidation reaction of hydroxamic acids under catalyst- and additive-free conditions. Org Biomol Chem 2019; 16:3615-3624. [PMID: 29708257 DOI: 10.1039/c8ob00490k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The Lossen rearrangement is a classic process for transforming activated hydroxamic acids into isocyanate under basic or thermal conditions. In the current report we disclosed a consecutive Lossen rearrangement/transamidation reaction in which unactivated hydroxamic acids were converted into N-substituted formamides in a one-pot manner under catalyst- and additive-free conditions. One feature of this novel transformation is that the formamide plays triple roles in the reaction by acting as a readily available solvent, a promoter for additive-free Lossen rearrangement, and a source of the formyl group in the final products. Acyl groups other than formyl could also be introduced into the product when changing the solvent to other low molecular weight aliphatic amide derivatives. The solvent-promoted Lossen rearrangement was better understood by DFT calculations, and the intermediacy of isocyanate and amine was supported well by experiments, in which the desired products were obtained in excellent yields under similar conditions. Not only monosubstituted formamides were synthesized from hydroxamic acids, but also N,N-disubstituted formamides were obtained when secondary amines were used as precursors.
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Affiliation(s)
- Mengmeng Jia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
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