1
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Verma S, Singh V, Jat JL, Tiwari B. Amidation of Enones via Beckmann Rearrangement. J Org Chem 2024. [PMID: 38800985 DOI: 10.1021/acs.joc.3c02478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The Beckmann reaction is one of the most atom-economical methods for the preparation of amides from ketones. Unlike ketones, the multiple competing reactivities of enones as well as the requirement of demanding reaction conditions for in situ generation of oximes have severely impacted the application of this reaction for the preparation of α,β-unsaturated amides. Herein, we describe the first chemoselective method for the direct conversion of enones to the corresponding α,β-unsaturated amides using N-Boc-O-tosylhydroxylamine.
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Affiliation(s)
- Saumya Verma
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India
| | - Vikram Singh
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
| | - Jawahar L Jat
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India
| | - Bhoopendra Tiwari
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
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2
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Huo T, Zhao X, Cheng Z, Wei J, Zhu M, Dou X, Jiao N. Late-stage modification of bioactive compounds: Improving druggability through efficient molecular editing. Acta Pharm Sin B 2024; 14:1030-1076. [PMID: 38487004 PMCID: PMC10935128 DOI: 10.1016/j.apsb.2023.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/14/2023] [Accepted: 11/13/2023] [Indexed: 03/17/2024] Open
Abstract
Synthetic chemistry plays an indispensable role in drug discovery, contributing to hit compounds identification, lead compounds optimization, candidate drugs preparation, and so on. As Nobel Prize laureate James Black emphasized, "the most fruitful basis for the discovery of a new drug is to start with an old drug"1. Late-stage modification or functionalization of drugs, natural products and bioactive compounds have garnered significant interest due to its ability to introduce diverse elements into bioactive compounds promptly. Such modifications alter the chemical space and physiochemical properties of these compounds, ultimately influencing their potency and druggability. To enrich a toolbox of chemical modification methods for drug discovery, this review focuses on the incorporation of halogen, oxygen, and nitrogen-the ubiquitous elements in pharmacophore components of the marketed drugs-through late-stage modification in recent two decades, and discusses the state and challenges faced in these fields. We also emphasize that increasing cooperation between chemists and pharmacists may be conducive to the rapid discovery of new activities of the functionalized molecules. Ultimately, we hope this review would serve as a valuable resource, facilitating the application of late-stage modification in the construction of novel molecules and inspiring innovative concepts for designing and building new drugs.
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Affiliation(s)
- Tongyu Huo
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xinyi Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Zengrui Cheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Jialiang Wei
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- Changping Laboratory, Beijing 102206, China
| | - Minghui Zhu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiaodong Dou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- Changping Laboratory, Beijing 102206, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai 200062, China
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3
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Dehydrative Beckmann rearrangement and the following cascade reactions. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.10.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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4
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Jat JL, Kumar P, Verma S, Chandra D, Singh V, Tiwari B. Metal-free synthesis of secondary amides using N-Boc- O-tosylhydroxylamine as nitrogen source via Beckmann rearrangement. NEW J CHEM 2022. [DOI: 10.1039/d2nj02755k] [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
An efficient methodology for the direct synthesis of secondary amides from ketones has been developed by using N-Boc-O-tosylhydroxylamine (TsONHBoc).
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Affiliation(s)
- Jawahar L. Jat
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow, India
| | - Puneet Kumar
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow, India
| | - Saumya Verma
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow, India
| | - Dinesh Chandra
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow, India
| | - Vikram Singh
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow, India
| | - Bhoopendra Tiwari
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow, India
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5
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Ghoreishi S, Moeinpour F. Microwave-Assisted Beckman Rearrangement by Cu(II)/Triazine-Based Dendrimer as an Efficacious Recoverable Nano-Catalyst Under Solvent-Free Conditions. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.2020311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Somayeh Ghoreishi
- Department of Chemistry, Bandar Abbas Branch, Islamic Azad University, Bandar, Abbas, Iran
| | - Farid Moeinpour
- Department of Chemistry, Bandar Abbas Branch, Islamic Azad University, Bandar, Abbas, Iran
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6
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Mazumdar W, Driver TG. Recent Advances in the Development of Catalytic Methods that Construct Medium-ring Lactams, Partially Saturated Benzazepines and their Derivatives. SYNTHESIS-STUTTGART 2021; 53:1734-1748. [PMID: 34421133 DOI: 10.1055/s-0040-1705995] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Recent catalytic methods to construct medium-sized lactams and partially saturated benzazepines and their derivatives are surveyed. The review is divided into the following sections: 1 Introduction 2 Non-Transition Metal Catalyzed Reactions 2.1 Beckmann Rearrangement 2.2 Non-Beckmann Rearrangement Reactions 2.3 Multi-component reactions 3 Transition Metal-Catalyzed Reactions 3.1 Au-catalyzed reactions to access medium-sized N-heterocycles 3.2 Reactions involving a metal η3-complex catalytic intermediate 3.3 Transition metal-catalyzed reactions of strained cycloalkanes 4 Conclusions.
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Affiliation(s)
- Wrickban Mazumdar
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, USA, 60607
| | - Tom G Driver
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, USA, 60607
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7
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Chen B, Xie Z, Peng F, Li S, Yang J, Wu T, Fan H, Zhang Z, Hou M, Li S, Liu H, Han B. Production of Piperidine and δ-Lactam Chemicals from Biomass-Derived Triacetic Acid Lactone. Angew Chem Int Ed Engl 2021; 60:14405-14409. [PMID: 33825278 DOI: 10.1002/anie.202102353] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/23/2021] [Indexed: 12/28/2022]
Abstract
Piperidine and δ-Lactam chemicals have wide application, which are currently produced from fossil resource in industry. Production of this kind of chemicals from lignocellulosic biomass is of great importance, but is challenging and the reported routes give low yield. Herein, we demonstrate the strategy to synthesize 2-methyl piperidine (MP) and 6-methylpiperidin-2-one (MPO) from biomass-derived triacetic acid lactone (TAL) that is produced microbially from glucose. In this route, TAL was firstly converted into 4-hydroxy-6-methylpyridin-2(1H)-one (HMPO) through facile aminolysis, subsequently HMPO was selectively transformed into MP or MPO over Ru catalysts supported on beta zeolite (Ru/BEA-X, X is the molar ratio of Si to Al) via the tandem reaction. It was found that the yield of MP could reach 76.5 % over Ru/BEA-60 in t-BuOH, and the yield of MPO could be 78.5 % in dioxane. Systematic studies reveal that the excellent catalytic performance of Ru/BEA-60 was closely correlated with the cooperative effects between active metal and acidic zeolite with large pore geometries. The related reaction pathway was studied on the basis of control experiments.
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Affiliation(s)
- Bingfeng Chen
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhenbing Xie
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Fangfang Peng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Shaopeng Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Junjuan Yang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Tianbin Wu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Honglei Fan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhaofu Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Minqiang Hou
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Shumu Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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8
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Chen B, Xie Z, Peng F, Li S, Yang J, Wu T, Fan H, Zhang Z, Hou M, Li S, Liu H, Han B. Production of Piperidine and δ‐Lactam Chemicals from Biomass‐Derived Triacetic Acid Lactone. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bingfeng Chen
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Zhenbing Xie
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Fangfang Peng
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Shaopeng Li
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Junjuan Yang
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Tianbin Wu
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Honglei Fan
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Zhaofu Zhang
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Minqiang Hou
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Shumu Li
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences Beijing 100049 P. R. China
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9
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Ge C, Sun X, Lian D, Li Z, Wu J. Controllable Synthesis and Structure-Performance Relationship of Silicalite-1 Nanosheets in Vapor Phase Beckmann Rearrangement of Cyclohexanone Oxime. Catal Letters 2021. [DOI: 10.1007/s10562-020-03404-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Bahreininejad MH, Moeinpour F. Green and efficient Beckmann rearrangement by Cu(
II
) contained nano‐silica triazine based dendrimer in water. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202000469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Farid Moeinpour
- Department of Chemistry, Bandar Abbas Branch Islamic Azad University Bandar Abbas Iran
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11
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Basson AJ, McLaughlin MG. Sustainable Access to 5-Amino-Oxazoles and Thiazoles via Calcium-Catalyzed Elimination-Cyclization with Isocyanides. CHEMSUSCHEM 2021; 14:1696-1699. [PMID: 33605021 PMCID: PMC8048476 DOI: 10.1002/cssc.202100225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/18/2021] [Indexed: 06/12/2023]
Abstract
Herein, we report a sustainable, modular, rapid and high-yielding transformation to afford densely functionalized 5-aminooxazoles and thiazoles. The reaction is tolerant to a wide range of functional groups and is typically complete in under 30 min. Furthermore, the described transformation is inherently green in relation to the catalyst and solvent choice as well as producing environmentally benign alcoholic by-products.
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Affiliation(s)
- Ashley J. Basson
- Department of Natural SciencesManchester Metropolitan UniversityChester StreetManchesterM1 5GDUnited Kingdom
| | - Mark G. McLaughlin
- Department of Natural SciencesManchester Metropolitan UniversityChester StreetManchesterM1 5GDUnited Kingdom
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12
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Beck S, Feller M, Spies L, Dietrich KJ, Jessen C, Stierstorfer K, Kornath AJ. Protonation of γ-Butyrolactone and γ-Butyrolactam. ChemistryOpen 2021; 10:8-15. [PMID: 33332769 PMCID: PMC7780814 DOI: 10.1002/open.202000220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/09/2020] [Indexed: 11/08/2022] Open
Abstract
γ-Butyrolactone and γ-butyrolactam were reacted in the superacidic systems XF/MF5 (X=H, D; M=As, Sb). Salts of the monoprotonated species of γ-butyrolactone were obtained in terms of [(CH2 )3 OCOH]+ [AsF6 ]- , [(CH2 )3 OCOH]+ [SbF6 ]- and [(CH2 )3 OCOD]+ [AsF6 ]- and the analogous lactam salts in terms of [(CH2 )3 NHCOH]+ [AsF6 ]- , [(CH2 )3 NHCOH]+ [SbF6 ]- and [(CH2 )3 NDCOD]+ [AsF6 ]- . The salts were characterized by low temperature Raman and infrared spectroscopy and for both protonated hexafluoridoarsenates, [(CH2 )3 OCOH]+ [AsF6 ]- and [(CH2 )3 NHCOH]+ [AsF6 ]- , single-crystal X-ray structure analyses were conducted. In addition to the experimental results, quantum chemical calculations were performed on the B3LYP/aug-cc-pVTZ level of theory. As in both crystal structures C⋅⋅⋅F contacts were observed, the nature of these contacts is discussed with Mapped Electrostatic Potential as a rate of strength.
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Affiliation(s)
- Stefanie Beck
- Department of ChemistryLudwig-Maximilian University of MunichButenandtstr. 5–1381377MünchenGermany
| | - Michael Feller
- Department of ChemistryLudwig-Maximilian University of MunichButenandtstr. 5–1381377MünchenGermany
| | - Laura Spies
- Department of ChemistryLudwig-Maximilian University of MunichButenandtstr. 5–1381377MünchenGermany
| | - Kai J. Dietrich
- Department of ChemistryLudwig-Maximilian University of MunichButenandtstr. 5–1381377MünchenGermany
| | - Christoph Jessen
- Department of ChemistryLudwig-Maximilian University of MunichButenandtstr. 5–1381377MünchenGermany
| | - Karin Stierstorfer
- Department of ChemistryLudwig-Maximilian University of MunichButenandtstr. 5–1381377MünchenGermany
| | - Andreas J. Kornath
- Department of ChemistryLudwig-Maximilian University of MunichButenandtstr. 5–1381377MünchenGermany
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13
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Tang L, Wang ZL, He YH, Guan Z. An Electrochemical Beckmann Rearrangement: Traditional Reaction via Modern Radical Mechanism. CHEMSUSCHEM 2020; 13:4929-4936. [PMID: 32710520 DOI: 10.1002/cssc.202001553] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Indexed: 06/11/2023]
Abstract
Electrosynthesis as a potential means of introducing heteroatoms into the carbon framework is rarely studied. Herein, the electrochemical Beckmann rearrangement, i. e. the direct electrolysis of ketoximes to amides, is presented for the first time. Using a constant current as the driving force, the reaction can be easily carried out under neutral conditions at room temperature. Based on a series of mechanistic studies, a novel radical Beckmann rearrangement mechanism is proposed. This electrochemical Beckmann rearrangement does not follow the trans-migration rule of the classical Beckmann rearrangement.
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Affiliation(s)
- Li Tang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Zhi-Lv Wang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Yan-Hong He
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Zhi Guan
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
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14
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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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15
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Gurjar J, Fokin VV. Sulfuryl Fluoride Mediated Synthesis of Amides and Amidines from Ketoximes via Beckmann Rearrangement. Chemistry 2020; 26:10402-10405. [PMID: 31997464 DOI: 10.1002/chem.201905358] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/20/2020] [Indexed: 12/26/2022]
Abstract
A metal-free and redox-neutral method for Beckmann rearrangement employing inexpensive and readily available SO2 F2 gas is described. The reported transformation proceeds at ambient temperature and is compatible with a wide range of sterically and electronically diverse aromatic, heteroaromatic, aliphatic and lignin-like oximes providing amides in good to excellent yields. The reaction proceeds through the formation of an imidoyl fluoride intermediate that can also be used for the synthesis of amidines.
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Affiliation(s)
- Jitendra Gurjar
- University of Southern California, The Bridge@USC and Loker Hydrocarbon Research Institute, 1002 Childs Way, Los Angeles, CA, 90089-3502, USA
| | - Valery V Fokin
- University of Southern California, The Bridge@USC and Loker Hydrocarbon Research Institute, 1002 Childs Way, Los Angeles, CA, 90089-3502, USA
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16
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Tang L, Wang ZL, Wan HL, He YH, Guan Z. Visible-Light-Induced Beckmann Rearrangement by Organic Photoredox Catalysis. Org Lett 2020; 22:6182-6186. [PMID: 32790434 DOI: 10.1021/acs.orglett.0c02168] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A facile and general strategy for efficient direct conversion of oximes to amides using an inexpensive organic photocatalyst and visible light is described. This radical Beckmann rearrangement can be performed under mild conditions. Various alkyl aryl ketoximes and diaryl ketoximes can be effectively converted into the corresponding amides in excellent yields.
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Affiliation(s)
- Li Tang
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Zhi-Lv Wang
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Hai-Lan Wan
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yan-Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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17
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Beckmann rearrangement: Thiamine hydrochloride as a remarkable catalyst for one-pot synthesis of amides from ketones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151859] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Basson AJ, McLaughlin MG. Synthesis of Functionalized Isoindolinones via Calcium Catalyzed Generation and Trapping of N-Acyliminium Ions. J Org Chem 2020; 85:5615-5628. [PMID: 32208694 DOI: 10.1021/acs.joc.0c00482] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Herein we report our full investigation into the calcium catalyzed generation and trapping of N-acyliminium ions from readily available 3-hydroxyisoindolinones. We have successfully employed a range of traditional nucleophiles including carbon, nitrogen, and sulfur containing reactive partners. The reaction is tolerant to a wide range of functionalities and provides high value scaffolds in good to excellent yields.
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Affiliation(s)
- Ashley J Basson
- Department of Natural Sciences, Manchester Metropolitan University, Chester Street, Manchester, United Kingdom, M15GD
| | - Mark G McLaughlin
- Department of Natural Sciences, Manchester Metropolitan University, Chester Street, Manchester, United Kingdom, M15GD
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19
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Chandra D, Verma S, Pandey CB, Yadav AK, Kumar P, Tiwari B, Jat JL. Direct synthesis of secondary amides from ketones through Beckmann rearrangement using O-(mesitylsulfonyl)hydroxylamine. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151822] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Xu J, Gao Y, Li Z, Liu J, Guo T, Zhang L, Wang H, Zhang Z, Guo K. Chlorotropylium Promoted Conversions of Oximes to Amides and Nitriles. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901537] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jiaxi Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Yu Gao
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Zhenjiang Li
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Jingjing Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Tianfo Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Lei Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Haixin Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Zhihao Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Kai Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
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21
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Abstract
The Beckmann rearrangement is an elegant transformation and has been used to great success in the synthesis of natural products and pharmaceuticals. In this review, the role of different catalysts as well as different medium for Beckmann rearrangement has been discussed over the last 20 years.
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Affiliation(s)
- Kamalpreet Kaur
- Department of Applied Sciences
- National Institute of Technology
- Narela
- India
| | - Suman Srivastava
- Department of Applied Sciences
- National Institute of Technology
- Narela
- India
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22
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Cu(II)–metformin immobilized on graphene oxide: an efficient and recyclable catalyst for the Beckmann rearrangement. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-019-03985-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Munnuri S, Verma S, Chandra D, Anugu RR, Falck JR, Jat JL. Cu(OTf) 2-catalyzed Beckmann Rearrangement of Ketones Using Hydroxylamine -O-sulfonic Acid (HOSA). SYNTHESIS-STUTTGART 2019; 51:3709-3714. [PMID: 32684655 PMCID: PMC7367085 DOI: 10.1055/s-0039-1690005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The Beckmann Rearrangement (BKR) of ketones to secondary amides often requires harsh reaction conditions that limit its practicality and scope. Herein, we describe the Cu(OTf)2-catalyzed BKR of ketones under mild reaction conditions using hydroxylamine-O-sulfonic acid (HOSA), a commercial water soluble aminating agent. This method is compatible with most functional groups and directly provides the desired amides in good to excellent yields.
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Affiliation(s)
- Sailu Munnuri
- Division of Chemistry, Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX, USA
| | - Saumya Verma
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, India
| | - Dinesh Chandra
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, India
| | - Raghunath Reddy Anugu
- Division of Chemistry, Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX, USA
| | - John R. Falck
- Division of Chemistry, Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX, USA
| | - Jawahar L. Jat
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, India
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24
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Ghadamyari Z, Khojastehnezhad A, Seyedi SM, Shiri A. Co(II)‐Porphyrin Immobilized on Graphene Oxide: An Efficient Catalyst for the Beckmann Rearrangement. ChemistrySelect 2019. [DOI: 10.1002/slct.201902811] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zohreh Ghadamyari
- Department of ChemistryFaculty of ScienceFerdowsi University of Mashhad, Mashhad Iran
| | - Amir Khojastehnezhad
- Department of ChemistryFaculty of ScienceFerdowsi University of Mashhad, Mashhad Iran
| | - Seyed Mohammad Seyedi
- Department of ChemistryFaculty of ScienceFerdowsi University of Mashhad, Mashhad Iran
| | - Ali Shiri
- Department of ChemistryFaculty of ScienceFerdowsi University of Mashhad, Mashhad Iran
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25
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Zhang G, Zhao Y, Xuan L, Ding C. SO2
F2
-Activated Efficient Beckmann Rearrangement of Ketoximes for Accessing Amides and Lactams. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900844] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Guofu Zhang
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Yiyong Zhao
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Lidi Xuan
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Chengrong Ding
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
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26
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Basson AJ, McLaughlin MG. Functionalisation of isoindolinones via a calcium catalysed Hosomi-Sakurai allylation. Chem Commun (Camb) 2019; 55:8317-8320. [PMID: 31257381 DOI: 10.1039/c9cc02450f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A rapid and functionally tolerant calcium catalysed Hosomi-Sakurai reaction has been realised. Employing 1 mol% calcium, allylated isoindolinones can be synthesised in high yields and the reaction is shown to be tolerant to a range of medicinally relevant functional groups including heterocycles. The synthetic utility of the reaction has been shown, and a plausible reaction mechanism is provided.
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Affiliation(s)
- Ashley J Basson
- Faculty of Science & Engineering, Department of Natural Sciences, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK.
| | - Mark G McLaughlin
- Faculty of Science & Engineering, Department of Natural Sciences, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK.
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27
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Mao PF, Zhou LJ, Zheng AQ, Miao CB, Yang HT. Cu(OAc)2-Triggered Cascade Reaction of Malonate-Tethered Acyl Oximes with Indoles, Indole-2-alcohols, and Indole-2-carboxamides. Org Lett 2019; 21:3153-3157. [DOI: 10.1021/acs.orglett.9b00849] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Peng-Fei Mao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - Li-Jin Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - An-Qi Zheng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - Chun-Bao Miao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - Hai-Tao Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
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28
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Chen Y, Cantillo D, Kappe CO. Visible Light-Promoted Beckmann Rearrangements: Separating Sequential Photochemical and Thermal Phenomena in a Continuous Flow Reactor. European J Org Chem 2019; 2019:2163-2171. [PMID: 31423105 PMCID: PMC6686973 DOI: 10.1002/ejoc.201900231] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Indexed: 12/04/2022]
Abstract
The Beckmann rearrangement of oximes to amides typically requires strong acids or highly reactive, hazardous electrophiles and/or elevated temperatures to proceed. A very attractive alternative is the in situ generation of Vilsmeier-Haack reagents, by means of photoredox catalysis, as promoters for the thermal Beckmann rearrangement. Investigation of the reaction parameters for this light-induced method using a one-pot strategy has shown that the reaction is limited by the different temperatures required for each of the two sequential steps. Using a continuous flow reactor, the photochemical and thermal processes have been separated by integrating a flow photoreactor unit at low temperature for the electrophile generation with a second reactor unit, at high temperature, where the rearrangement takes place. This strategy has enabled excellent conversions and yields for a diverse set of oximes, minimizing the formation of side products obtained with the original one-pot method.
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Affiliation(s)
- Yuesu Chen
- Research Center Pharmaceutical Engineering GmbH (RCPE)Center for Continuous Flow Synthesis and Processing (CC FLOW)Inffeldgasse 138010, GrazAustria
- Institute of ChemistryUniversity of GrazHeinrichstrasse 288010, GrazAustria
| | - David Cantillo
- Research Center Pharmaceutical Engineering GmbH (RCPE)Center for Continuous Flow Synthesis and Processing (CC FLOW)Inffeldgasse 138010, GrazAustria
- Institute of ChemistryUniversity of GrazHeinrichstrasse 288010, GrazAustria
| | - C. Oliver Kappe
- Research Center Pharmaceutical Engineering GmbH (RCPE)Center for Continuous Flow Synthesis and Processing (CC FLOW)Inffeldgasse 138010, GrazAustria
- Institute of ChemistryUniversity of GrazHeinrichstrasse 288010, GrazAustria
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29
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Wang Y, Chen Q, He M, Wang L. Polystyrene-supported phosphine oxide-catalysed Beckmann rearrangement of ketoximes in 1,1,1,3,3,3-hexafluoro-2-propanol. PHOSPHORUS SULFUR 2018. [DOI: 10.1080/10426507.2018.1539489] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yaoyao Wang
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, P. R. China
| | - Qun Chen
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, P. R. China
| | - Mingyang He
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, P. R. China
| | - Liang Wang
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, P. R. China
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30
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Hyodo K, Hasegawa G, Oishi N, Kuroda K, Uchida K. Direct and Catalytic Amide Synthesis from Ketones via Transoximation and Beckmann Rearrangement under Mild Conditions. J Org Chem 2018; 83:13080-13087. [DOI: 10.1021/acs.joc.8b01810] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kengo Hyodo
- Department of Material Chemistry, Faculty of Science and Technology, Ryukoku University, Seta, Otsu, Shiga 520-2194, Japan
| | - Genna Hasegawa
- Department of Material Chemistry, Faculty of Science and Technology, Ryukoku University, Seta, Otsu, Shiga 520-2194, Japan
| | - Naoki Oishi
- Department of Material Chemistry, Faculty of Science and Technology, Ryukoku University, Seta, Otsu, Shiga 520-2194, Japan
| | - Kazuma Kuroda
- Department of Material Chemistry, Faculty of Science and Technology, Ryukoku University, Seta, Otsu, Shiga 520-2194, Japan
| | - Kingo Uchida
- Department of Material Chemistry, Faculty of Science and Technology, Ryukoku University, Seta, Otsu, Shiga 520-2194, Japan
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