1
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Sharma S, Monga Y, Gupta A, Singh S. 2-Oxindole and related heterocycles: synthetic methodologies for their natural products and related derivatives. RSC Adv 2023; 13:14249-14267. [PMID: 37179999 PMCID: PMC10173257 DOI: 10.1039/d3ra02217j] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Natural goods, medications, and pharmaceutically active substances all contain substituted oxindoles. Generally, the C-3 stereocenter of the substituents of oxindoles and their absolute arrangement have a substantial impact on the bioactivity of these substances. In this case, the desire for contemporary probe and drug-discovery programs for the synthesis of chiral compounds using desirable scaffolds with high structural diversity further drives research in this field. Also, the new synthetic techniques are generally simple to apply for the synthesis of other similar scaffolds. Herein, we review the distinct approaches for the synthesis of diverse useful oxindole scaffolds. Specifically, the research findings on the naturally existing 2-oxindole core and a variety of synthetic compounds having a 2-oxindole core are discussed. We present an overview of the construction of oxindole-based synthetic and natural products. In addition, the chemical reactivity of 2-oxindole and its related derivatives in the presence of chiral and achiral catalysts are thoroughly discussed. The data compiled herein provides broad information related to the bioactive product design, development, and applications of 2-oxindoles and the reported techniques will be helpful for the investigation of novel reactions in the future.
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Affiliation(s)
- Shivangi Sharma
- Department of Applied Chemistry, Amity School of Engineering and Technology, Amity University Madhya Pradesh Gwalior Madhya Pradesh-474 005 India
| | - Yukti Monga
- Shyamlal College, Department of Chemistry, University of Delhi Delhi-110032 India
| | - Ashu Gupta
- Shyamlal College, Department of Chemistry, University of Delhi Delhi-110032 India
| | - Shivendra Singh
- Department of Applied Chemistry, Amity School of Engineering and Technology, Amity University Madhya Pradesh Gwalior Madhya Pradesh-474 005 India
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2
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Pu X, Zhang Y, He X, Zhang X, Jiang L, Cao R, Kin Tse M, Qiu L. Synthesis of
N
‐Substituted 4‐Quinolones via Palladium‐Catalyzed Enantioselective C−N Coupling and Base‐Promoted Reactions. Adv Synth Catal 2023. [DOI: 10.1002/adsc.202300153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
Affiliation(s)
- Xiaoyun Pu
- School of Chemistry Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Yaqi Zhang
- School of Chemistry Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Xiaobo He
- School of Chemistry Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Xinhuan Zhang
- School of Chemistry Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Long Jiang
- Instrumental Analysis and Research Centre Sun Yat-sen University Guangzhou 510275 China
| | - Rihui Cao
- School of Chemistry Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Man Kin Tse
- Guangzhou Lee & Man Technology Company Limited 8 Huanshi Avenue South, Nansha Guangzhou 511458 People's Republic of China
| | - Liqin Qiu
- School of Chemistry Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery Sun Yat-sen University Guangzhou 510006 People's Republic of China
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3
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Liu Y, Ding S, Xu M, Xu J, Cheng D, Wang H, Xu X. Synthesis of arylacylated oxindoles via visible light‐promoted Smiles rearrangement. ChemistrySelect 2022. [DOI: 10.1002/slct.202202563] [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)
- Yihuo Liu
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Siyu Ding
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Mingli Xu
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Jinli Xu
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Dongping Cheng
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Hong Wang
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Xiaoliang Xu
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
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4
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Salameh N, Anastasiou I, Ferlin F, Minio F, Chen S, Santoro S, Liu P, Gu Y, Vaccaro L. Heterogeneous palladium-catalysed intramolecular C(sp3) H α-arylation for the green synthesis of oxindoles. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Watanabe K, Takeda M, Nagao K, Ohmiya H. Reductive Cross‐Coupling between Arylaldehydes and (Hetero)aryl Electrophiles Using Silylboronate Reductant. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200005] [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)
- Koh Watanabe
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Mitsutaka Takeda
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Kazunori Nagao
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- JST, PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
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6
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Wu S, Zhao Q, Wu C, Wang C, Lei H. Transition-metal-free oxindole synthesis: quinone-K 2CO 3 catalyzed intramolecular radical cyclization. Org Chem Front 2022. [DOI: 10.1039/d2qo00205a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel and highly efficient transition-metal-free approach for the conversion of α-bromoanilides to 3,3-disubstituted oxindoles is described. This transformation is promoted by catalytic amount of 9,10-phenanthrenequinone (PQ) together with K2CO3,...
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7
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Park SA, Park JU, Kim YL, Kim JH. Transition Metal-Free, Methoxide-Catalyzed Synthesis of Pyridoindolones. J Org Chem 2021; 86:17050-17062. [PMID: 34761671 DOI: 10.1021/acs.joc.1c02176] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A simple transition metal-free strategy for the synthesis of pyrido[1,2-a]indolone derivatives has been devised through sodium methoxide-catalyzed intramolecular cyclization of 2-alkenylated N-pyrimidyl indoles. The reactions involved a Smiles rearrangement/cyclization cascade, which resulted in a new series of N-fused indoles, potentially applicable skeletons in medicinal chemistry. This reaction presents simple eco-friendly reaction conditions, a high atom- and cost-economy, a short reaction time, and a broad range of substrate scope with high reaction efficiency.
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Affiliation(s)
- Sun-A Park
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, 52828 Jinju, Korea
| | - Jong-Un Park
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, 52828 Jinju, Korea
| | - Ye Lim Kim
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, 52828 Jinju, Korea
| | - Ju Hyun Kim
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, 52828 Jinju, Korea
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8
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Yurino T, Ohkuma T, Ece H, Tange Y. Silyl Cyanopalladate-Catalyzed Friedel–Crafts-Type Cyclization Affording 3-Aryloxindole Derivatives. Synlett 2021. [DOI: 10.1055/a-1373-7017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Abstract3-Aryloxindole derivatives were synthesized through a Friedel–Crafts-type cyclization. The reaction was catalyzed by a trimethylsilyl tricyanopalladate complex generated in situ from trimethylsilyl cyanide and Pd(OAc)2. Wide varieties of diethyl phosphates derived from N-arylmandelamides were converted almost quantitatively into oxindoles. When N,N-dibenzylamide was used instead of an anilide substrate, a benzo-fused δ-lactam was obtained. An oxindole product was subjected to substitution reactions to afford 3,3-diaryloxindoles with two different aryl groups.
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Affiliation(s)
- Taiga Yurino
- Division of Applied Chemistry and Frontier Chemistry Center, Faculty of Engineering, Hokkaido University
| | - Takeshi Ohkuma
- Division of Applied Chemistry and Frontier Chemistry Center, Faculty of Engineering, Hokkaido University
| | - Hamdiye Ece
- Graduate School of Chemical Sciences and Engineering, Hokkaido University
| | - Yuji Tange
- Graduate School of Chemical Sciences and Engineering, Hokkaido University
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9
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Tokumoto K, Makiyama K, Sonoda M, Tanimori S. Proline‐catalyzed Transition‐Metal‐free Access to 1‐Substituted‐4‐Quinazolinones. ChemistrySelect 2021. [DOI: 10.1002/slct.202100069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kento Tokumoto
- Department of Applied Biological Sciences Graduate School of Life and Environmental Sciences Osaka Prefecture University, 1–1 Gakuencho, Nakaku Sakai Osaka 599-8531 Japan
| | - Kouhei Makiyama
- Department of Applied Biological Sciences Graduate School of Life and Environmental Sciences Osaka Prefecture University, 1–1 Gakuencho, Nakaku Sakai Osaka 599-8531 Japan
| | - Motohiro Sonoda
- Department of Applied Biological Sciences Graduate School of Life and Environmental Sciences Osaka Prefecture University, 1–1 Gakuencho, Nakaku Sakai Osaka 599-8531 Japan
| | - Shinji Tanimori
- Department of Applied Biological Sciences Graduate School of Life and Environmental Sciences Osaka Prefecture University, 1–1 Gakuencho, Nakaku Sakai Osaka 599-8531 Japan
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10
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Kumar Y, Ila H. Synthesis of Substituted Benzo[b]thiophenes via Base-Promoted Domino Condensation–Intramolecular C–S Bond Formation. Org Lett 2021; 23:1698-1702. [DOI: 10.1021/acs.orglett.1c00085] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yogendra Kumar
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Hiriyakkanavar Ila
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
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11
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Luo N, Sun ZW, Xu XX, Hu XQ, Jia FC. A transition-metal-free, base-promoted annulation/ring-cleavage/ring-reconstruction cascade reaction: a facile access to N-protection free indole-indenones. Org Chem Front 2021. [DOI: 10.1039/d1qo01280k] [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 unprecedented base-promoted reaction of 2-halogenated arylglyoxals with 2-oxindoles is accomplished under metal-free conditions, furnishing a wide range of biologically important (NH)-indeno[2,1-b]indol-6(5H)-ones in useful to good yields.
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Affiliation(s)
- Na Luo
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Zhen-Wei Sun
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Xing-Xin Xu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Xiao-Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Feng-Cheng Jia
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
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12
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Madasu J, Shinde S, Das R, Patel S, Shard A. Potassium tert-butoxide mediated C-C, C-N, C-O and C-S bond forming reactions. Org Biomol Chem 2020; 18:8346-8365. [PMID: 33020791 DOI: 10.1039/d0ob01382j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Potassium tertiary butoxide (KOtBu) mediated constructions of C-C, C-O, C-N, and C-S bonds are reviewed with special emphasis on their synthetic applications. KOtBu can be used to perform reactions already known to be carried out using transition metals, but it has advantages in terms of environmental congruence and economic cost. KOtBu is widely employed in organic synthesis to mediate the construction of C-C, C-O, C-N, C-S and miscellaneous bonds in good to excellent yields. Synthetic uses of KOtBu in coupling, alkylation, arylation, α-phenylation, cyclization, Heck-type, annulation, photo-arylation, aromatic-substitution, amidation, and silylation reactions are summarized and discussed. The mechanisms through which KOtBu carries out a specific reaction are also discussed. One of the goals of this review is to attract the attention of chemists as to the benefits of using KOtBu as an environmentally benign alternative to transition metals and its applications in the construction of chemical bonds with predominant importance in organic synthesis. This review completely covers the synthetic protocols that have been performed using KOtBu in the last two decades.
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Affiliation(s)
- Jayashree Madasu
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gujarat 380054, India.
| | - Shital Shinde
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gujarat 380054, India.
| | - Rudradip Das
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gujarat 380054, India.
| | - Sagarkumar Patel
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gujarat 380054, India.
| | - Amit Shard
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gujarat 380054, India.
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13
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Gorman RM, Hurst TE, Petersen WF, Taylor RJ. A copper(II)-mediated radical cross-dehydrogenative coupling/sulfinic acid elimination approach to 2-quinolones. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Li X, Zheng L, Li N, Chang H, Gao W, Wei W, Chen W. Catalyst‐Free and Selective Ring Openings of
N
‐Tosylaziridines: Good Approaches to β‐Amino Sulfones, β‐Bis(amino)thioethers, 1,2‐Azide Amines and 1,2‐Diamines. ChemistrySelect 2019. [DOI: 10.1002/slct.201902690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xing Li
- Department of Biomedical EngineeringTaiyuan University of Technology 79 West Yingze Street Taiyuan 030024 People's Republic of China
| | - Leijie Zheng
- Department of Biomedical EngineeringTaiyuan University of Technology 79 West Yingze Street Taiyuan 030024 People's Republic of China
| | - Nana Li
- Department of Biomedical EngineeringTaiyuan University of Technology 79 West Yingze Street Taiyuan 030024 People's Republic of China
| | - Honghong Chang
- Department of Biomedical EngineeringTaiyuan University of Technology 79 West Yingze Street Taiyuan 030024 People's Republic of China
| | - Wenchao Gao
- Department of Biomedical EngineeringTaiyuan University of Technology 79 West Yingze Street Taiyuan 030024 People's Republic of China
| | - Wenlong Wei
- Department of Biomedical EngineeringTaiyuan University of Technology 79 West Yingze Street Taiyuan 030024 People's Republic of China
| | - Wenwen Chen
- School of Chemistry and Material ScienceShanxi Normal University Linfen 041004 China
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15
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Kumar Y, Ila H. Domino Synthesis of 2-Substituted Benzothiazoles by Base-Promoted Intramolecular C–S Bond Formation. Org Lett 2019; 21:7863-7867. [DOI: 10.1021/acs.orglett.9b02855] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yogendra Kumar
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Hiriyakkanavar Ila
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
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16
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Shukla D, Babu SA. Pd‐Catalyzed Diastereoselective Intramolecular Amide
α
‐C−H Arylation in Sterically Hindered Monospirooxindole Motifs. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801732] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Dipti Shukla
- Department Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O. Punjab 140306 India
| | - Srinivasarao Arulananda Babu
- Department Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O. Punjab 140306 India
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17
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Boultwood T, Bull JA. Synthesis of Selenoaziridines: A Study on Stereochemical Outcomes of the Reaction of Aziridine Radicals and Anions Generated from Iodoaziridines. ACS OMEGA 2019; 4:870-879. [PMID: 31459364 PMCID: PMC6648590 DOI: 10.1021/acsomega.8b03019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/26/2018] [Indexed: 06/10/2023]
Abstract
The synthesis of a new functional group in the form of selenyl-substituted aziridines is described. Selenoaziridines are stereoselectively prepared by functionalization of intact aziridine precursors involving radical and anionic intermediates. Radicals are generated from cis-N-Ts iodoaziridines by activation of the C-I bond using alkoxides as a source of single electrons. These form predominantly trans-substituted selenoaziridines dependent on the size of the diselenide. cis-Aziridinyllithiums generated by Li-I exchange also react with diselenides stereospecifically to form a range of cis-selenoaziridines. Proposals for the stereochemical outcome are presented.
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Affiliation(s)
- Tom Boultwood
- Department
of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London W12 0BZ, U.K.
| | - James A. Bull
- Department
of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London W12 0BZ, U.K.
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18
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Bugaenko DI, Dubrovina AA, Yurovskaya MA, Karchava AV. Synthesis of Indoles via Electron-Catalyzed Intramolecular C-N Bond Formation. Org Lett 2018; 20:7358-7362. [PMID: 30431287 DOI: 10.1021/acs.orglett.8b02784] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A new protocol for the preparation of N-substituted indole-3-carboxylates has been developed. The key C-N bond formation occurs under transition-metal-free conditions employing a t-BuOK/DMF system without special initiators or additives. Across a number of substrates, indoles were afforded in yields higher or comparable to those obtained under transition-metal-catalyzed conditions. While demonstrating high functional group tolerance, new conditions are particularly attractive for manufacturing halogenated indoles that cannot be made in a pure form using other metal-based catalytic methods.
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Affiliation(s)
- Dmitry I Bugaenko
- Department of Chemistry , Moscow State University , Moscow 119234 , Russia
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19
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Mandal T, Chakraborti G, Karmakar S, Dash J. Divergent and Orthogonal Approach to Carbazoles and Pyridoindoles from Oxindoles via Indole Intermediates. Org Lett 2018; 20:4759-4763. [DOI: 10.1021/acs.orglett.8b01827] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tirtha Mandal
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Gargi Chakraborti
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Shilpi Karmakar
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Jyotirmayee Dash
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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20
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Savarimuthu SA, Thankappan H, Thomas SA, Prakash DGL. Sodium Tertiary Pentoxide: A Mild and Efficient Base to Make C-C Bond between Acetylenes and Aldehydes (or) Ketones Producing Propargyl Alcohols. ChemistrySelect 2018. [DOI: 10.1002/slct.201801640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Hajeeth Thankappan
- Institut Européen des Membranes, IEM, UMR 5635; Université de Montpellier, CNRS, Montpellier; France
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21
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Ji W, Liu YA, Liao X. Transition-Metal-Free Synthesis of N-Hydroxy Oxindoles by an Aza-Nazarov-Type Reaction Involving Azaoxyallyl Cations. Angew Chem Int Ed Engl 2018; 55:13286-13289. [PMID: 27709823 DOI: 10.1002/anie.201607177] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Indexed: 01/15/2023]
Abstract
A novel transition-metal-free method to construct N-hydroxy oxindoles by an aza-Nazarov-type reaction involving azaoxyallyl cation intermediates is described. A variety of functional groups were tolerated under the weak basic reaction conditions and at room temperature. A one-pot process was also developed to make the reaction even more practical. This method provides alternative access to oxindoles and their biologically active derivatives.
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Affiliation(s)
- Wenzhi Ji
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Tsinghua University, China
| | - Yahu A Liu
- Medicinal Chemistry, Genomics Institute of the Novartis Research Foundation, San Diego, CA, 92121, USA
| | - Xuebin Liao
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Tsinghua University, China.
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22
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Cyclization and oxidation of o -bromophenylacetamides for the synthesis of oxindoles and isoindigoes. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Shen J, You Q, Fu Q, Kuai C, Huang H, Zhao L, Zhuang Z. Base-Promoted Cascade C–C Coupling/N-α-sp3C–H Hydroxylation for the Regiospecific Synthesis of 3-Hydroxyisoindolinones. Org Lett 2017; 19:5170-5173. [DOI: 10.1021/acs.orglett.7b02442] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jinhai Shen
- Department
of Science and Technology for Inspection, Xiamen Huaxia University, Xiamen 361024, China
| | - Qihua You
- Department
of Science and Technology for Inspection, Xiamen Huaxia University, Xiamen 361024, China
| | - Qi Fu
- Department
of Science and Technology for Inspection, Xiamen Huaxia University, Xiamen 361024, China
| | - Changsheng Kuai
- School
of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| | - Huabin Huang
- Department
of Science and Technology for Inspection, Xiamen Huaxia University, Xiamen 361024, China
| | - Li Zhao
- Department
of Science and Technology for Inspection, Xiamen Huaxia University, Xiamen 361024, China
| | - Zhixia Zhuang
- Department
of Science and Technology for Inspection, Xiamen Huaxia University, Xiamen 361024, China
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24
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Shingare R, Kulkarni AS, Sutar RL, Reddy DS. Route to Benzimidazol-2-ones via Decarbonylative Ring Contraction of Quinoxalinediones: Application to the Synthesis of Flibanserin, A Drug for Treating Hypoactive Sexual Desire Disorder in Women and Marine Natural Product Hunanamycin Analogue. ACS OMEGA 2017; 2:5137-5141. [PMID: 30023739 PMCID: PMC6044990 DOI: 10.1021/acsomega.7b00819] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 08/15/2017] [Indexed: 06/08/2023]
Abstract
A simple and practical method to access a variety of benzimidazol-2-ones is reported here. A series of N-alkyl-substituted benzimidazol-2-ones were synthesized by decarbonylative ring contraction starting from corresponding quinoxalinediones for the first time. The utility of the method has been demonstrated by synthesizing recently approved controversial drug flibanserin (Addyi) and a urea analogue of marine antibiotic natural product hunanamycin-A.
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Affiliation(s)
- Rahul
D. Shingare
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi
Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110 025, India
| | - Akshay S. Kulkarni
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi
Bhabha Road, Pune 411008, India
| | - Revannath L. Sutar
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi
Bhabha Road, Pune 411008, India
| | - D. Srinivasa Reddy
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi
Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110 025, India
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25
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Garg P, Jadhav SD, Singh A. Oxidation State Dichotomy in Copper-Catalyzed Intramolecular Cyclization of α-Diazoanilides: An Integrated Synthetic Platform for Oxindoles and Isatins Enabled by Oxygenase-Type Reactivity. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Parul Garg
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur- 208016 U.P. India
| | - Santosh D. Jadhav
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur- 208016 U.P. India
| | - Anand Singh
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur- 208016 U.P. India
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26
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Duan J, Kwong FY. A Palladium-Catalyzed α-Arylation of Oxindoles with Aryl Tosylates. J Org Chem 2017; 82:6468-6473. [PMID: 28539045 DOI: 10.1021/acs.joc.7b00855] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A palladium-catalyzed monoselective C3 arylation of 2-oxindoles with aryl tosylates is described. With the Pd/CM-phos catalyst system, the corresponding 3-arylated oxindoles can be obtained in good to excellent yields (≤97%). The reaction conditions are mild (using 0.5 mol % Pd in general and KF as a base), and functional groups such as methyl ester, NH amido, and enolizable keto moieties are found to be compatible.
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Affiliation(s)
- Jindian Duan
- Department of Applied Biology and Chemical Technology and SKL of Chirosciences, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong
| | - Fuk Yee Kwong
- Department of Applied Biology and Chemical Technology and SKL of Chirosciences, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong.,Department of Chemistry, The Chinese University of Hong Kong , Shatin, New Territories, Hong Kong
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27
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Karmakar U, Das D, Samanta R. Iridium-Catalysed Cascade Synthesis of Oxindoles Using Diazo Compounds: A Quick Entry to C-7-Functionalized Oxindoles. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700214] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Ujjwal Karmakar
- Department of Chemistry; Indian Institute of Technology Kharagpur; 721302 Kharagpur India
| | - Debapratim Das
- Department of Chemistry; Indian Institute of Technology Kharagpur; 721302 Kharagpur India
| | - Rajarshi Samanta
- Department of Chemistry; Indian Institute of Technology Kharagpur; 721302 Kharagpur India
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28
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Sattar M, Rathore V, Prasad CD, Kumar S. Transition-metal-free Chemoselective Oxidative C-C Coupling of the sp 3 C-H Bond of Oxindoles with Arenes and Addition to Alkene: Synthesis of 3-Aryl Oxindoles, and Benzofuro- and Indoloindoles. Chem Asian J 2017; 12:734-743. [PMID: 28169505 DOI: 10.1002/asia.201601647] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 02/03/2017] [Indexed: 01/11/2023]
Abstract
A transition-metal (TM)-free and halogen-free NaOtBu-mediated oxidative cross-coupling between the sp3 C-H bond of oxindoles and sp2 C-H bond of nitroarenes has been developed to access 3-aryl substituted and 3,3-aryldisubstituted oxindoles in DMSO at room temperature in a short time. Interestingly, the sp3 C-H bond of oxindoles could also react with styrene under TM-free conditions for the practical synthesis of quaternary 3,3-disubstituted oxindoles. The synthesized 3-oxindoles have also been further transformed into advanced heterocycles, that is, benzofuroindoles, indoloindoles, and substituted indoles. Mechanistic experiments of the reaction suggests the formation of an anion intermediate from the sp3 C-H bond of oxindole by tert-butoxide base in DMSO. The addition of nitrobenzene to the in-situ generated carbanion leads to the 3-(nitrophenyl)oxindolyl carbanion in DMSO which is subsequently oxidized to 3-(nitro-aryl) oxindole by DMSO.
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Affiliation(s)
- Moh Sattar
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri Bhopal, Madhya Pradesh, 462066, India
| | - Vandana Rathore
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri Bhopal, Madhya Pradesh, 462066, India
| | - Ch Durga Prasad
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri Bhopal, Madhya Pradesh, 462066, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri Bhopal, Madhya Pradesh, 462066, India
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29
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Lin W, Su F, Zhang HJ, Wen TB. K2S2O8-Promoted Direct C-H Phosphorylation of (Benzo)thiazoles. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700022] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Weidong Lin
- Department of Chemistry; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Feng Su
- Department of Chemistry; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Hui-Jun Zhang
- Department of Chemistry; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Ting-Bin Wen
- Department of Chemistry; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
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30
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Abstract
AbstractThe development of practical, efficient and atom-economical methods of formation of carbon-phosphorus bonds remains a topic of considerable interest for the current synthetic organic chemistry and electrochemistry. This review summarizes selected topics from the recent publications with particular emphasis on phosphine and phosphine oxides formation from white phosphorus, chlorophosphines in electrocatalytic processes using aryl, hetaryl or perfluoroalkyl halides as reagents. This review includes selected highlights concerning recent progress in modification of catalytic systems for aromatic C–H bonds phosphonation involving metal-catalyzed ligand directed or metal-induced oxidative processes. Furthermore, a part of this review is devoted to phosphorylation of olefins with white phosphorus under reductive conditions in water-organic media. Finally, we have also documented recent advances in ferrocene C–H activation and phosphorylation.
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31
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Li JS, Da YD, Chen GQ, Yang Q, Li ZW, Yang F, Huang PM. Solvent-, and Catalyst-free Acylation of Anilines with Meldrum's Acids: ANeat Access to Anilides. ChemistrySelect 2017. [DOI: 10.1002/slct.201601965] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jiang-Sheng Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Yu-Dong Da
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Guo-Qin Chen
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Qian Yang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Zhi-Wei Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Fan Yang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Peng-Mian Huang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
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32
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Yaragorla S, Dada R, Singh G, Pareek A, Rana M, Sharma AK. Ca(II)-Catalyzed Regioselective Cascade Synthesis of Oxindolyl- Naphthofurans through Meyer-Schuster type Rearrangement. ChemistrySelect 2016. [DOI: 10.1002/slct.201601349] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Srinivasarao Yaragorla
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Ravikrishna Dada
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Garima Singh
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Abhishek Pareek
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Monika Rana
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Anuj K. Sharma
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
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33
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Reddy BN, Ramana CV. Synthesis of Functionalized 6-Hydroxy-2-oxindole Derivatives by Phenoxide Cyclization. Org Lett 2016; 18:6264-6267. [PMID: 27978630 DOI: 10.1021/acs.orglett.6b03048] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An apparent intramolecular cross-dehydrogenative coupling of N-(3-hydroxy)monoanilide of maleic esters comprising base promoted phenoxide cyclization and subsequent base-mediated aerobic oxidation was developed to synthesize a variety of 2-(6-hydroxy-2-oxoindolin-3-ylidene)acetate derivatives. The isolation of intermediate cyclized products during the large scale reactions and their ready dehydrogenation with 1 equiv of base support this proposed two-step path.
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Affiliation(s)
- B Narendraprasad Reddy
- Division of Organic Chemistry, CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road, Pune-411008, India
| | - Chepuri V Ramana
- Division of Organic Chemistry, CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road, Pune-411008, India
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34
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Ji W, Liu YA, Liao X. Transition-Metal-Free Synthesis of N
-Hydroxy Oxindoles by an Aza-Nazarov-Type Reaction Involving Azaoxyallyl Cations. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607177] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wenzhi Ji
- School of Pharmaceutical Sciences; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; Tsinghua University; China
| | - Yahu A. Liu
- Medicinal Chemistry; Genomics Institute of the Novartis Research Foundation; San Diego CA 92121 USA
| | - Xuebin Liao
- School of Pharmaceutical Sciences; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; Tsinghua University; China
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35
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Tsujii M, Sonoda M, Tanimori S. Proline-Mediated Transition Metal-Free Access to 1H-Indazolones from 2-Halobenzohydrazides. J Org Chem 2016; 81:6766-73. [DOI: 10.1021/acs.joc.6b00651] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miho Tsujii
- Department
of Applied Biosciences,
Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuencho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Motohiro Sonoda
- Department
of Applied Biosciences,
Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuencho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Shinji Tanimori
- Department
of Applied Biosciences,
Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuencho, Nakaku, Sakai, Osaka 599-8531, Japan
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36
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Hu L, Gui Q, Chen X, Tan Z, Zhu G. HOTf-Catalyzed, Solvent-Free Oxyarylation of Ynol Ethers and Thioethers. J Org Chem 2016; 81:4861-8. [PMID: 27163354 DOI: 10.1021/acs.joc.6b00535] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A novel HOTf-catalyzed oxyarylation of ynol ethers and thioethers has been realized with aryl sulfoxides as the oxyarylating reagents, providing α-arylated esters or thioesters in good to excellent yields. Notably, all atoms of the starting materials were incorporated in the product (100% atom economy) and the reaction proceeded under very mild conditions. It was found that the reaction can be ran under air and that the best yields are obtained under solvent-free conditions.
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Affiliation(s)
- Liang Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, P. R. China
| | - Qingwen Gui
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, P. R. China
| | - Xiang Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, P. R. China
| | - Ze Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, P. R. China
| | - Gangguo Zhu
- Department of Chemistry, Zhejiang Normal University , 688 Yingbin Road, Jinhua 321004, China
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37
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Efficient synthesis of functionalized chromones via a two-base mediated formal [3+3] cycloaddition. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.04.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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38
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Ghosh A, Walker JA, Ellern A, Stanley LM. Coupling Catalytic Alkene Hydroacylation and α-Arylation: Enantioselective Synthesis of Heterocyclic Ketones with α-Chiral Quaternary Stereocenters. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00365] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Avipsa Ghosh
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - James A. Walker
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Arkady Ellern
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Levi M. Stanley
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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39
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Lim JW, Kim KH, Moon HR, Kim JN. Transition metal and base-free synthesis of 3,3-diaryl-2-oxindoles from 2,2,N-triarylacetamides. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.01.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Chen XY, Englert U, Bolm C. Base-Mediated Syntheses of Di- and Trisubstituted Imidazoles from Amidine Hydrochlorides and Bromoacetylenes. Chemistry 2015; 21:13221-4. [DOI: 10.1002/chem.201502707] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Indexed: 12/16/2022]
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41
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Giménez-Navarro V, Volná T, Krchňák V. 3-Alkyl-3-(alkylamino)indolin-2-ones via Base-Mediated C-Arylation of 2-Nitrobenzenesulfonamides. ACS COMBINATORIAL SCIENCE 2015; 17:433-6. [PMID: 26181142 DOI: 10.1021/acscombsci.5b00068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Resin-bound intermediates prepared from polymer-supported amino acid esters, 2-nitrobenezenesulfonyl chlorides, and alcohols were used to synthesize 3-alkyl-3-(alkylamino) indolin-2-ones. The key step of the reaction sequence was the formation of a quaternary carbon via the base-mediated C-arylation of 2-nitrobenzenesulfonamides. The cleavage of the acyclic precursors from the resin and subsequent reduction of the nitro group by Zn in acetic acid triggered the spontaneous cyclization of the arylated compounds to indolinones. The synthesis was carried out using simple commercially available building blocks under mild conditions and provided the 3,3-disubstituted indolinone derivatives with good overall yields however, the arylation reaction resulted in the epimerization of the quaternary carbon.
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Affiliation(s)
- Vanesa Giménez-Navarro
- Department
of Organic Chemistry, Institute of Molecular and Translational Medicine,
Faculty of Science, Palacky University, 17. listopadu 12, 771 46 Olomouc, Czech Republic
| | - Tereza Volná
- Department
of Organic Chemistry, Institute of Molecular and Translational Medicine,
Faculty of Science, Palacky University, 17. listopadu 12, 771 46 Olomouc, Czech Republic
| | - Viktor Krchňák
- Department
of Organic Chemistry, Institute of Molecular and Translational Medicine,
Faculty of Science, Palacky University, 17. listopadu 12, 771 46 Olomouc, Czech Republic
- Department
of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland
Science Center, Notre Dame, Indiana 46556, United States
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42
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Pichette Drapeau M, Fabre I, Grimaud L, Ciofini I, Ollevier T, Taillefer M. Transition-Metal-Free α-Arylation of Enolizable Aryl Ketones and Mechanistic Evidence for a Radical Process. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502332] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Pichette Drapeau M, Fabre I, Grimaud L, Ciofini I, Ollevier T, Taillefer M. Transition-Metal-Free α-Arylation of Enolizable Aryl Ketones and Mechanistic Evidence for a Radical Process. Angew Chem Int Ed Engl 2015; 54:10587-91. [PMID: 26136406 DOI: 10.1002/anie.201502332] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 05/11/2015] [Indexed: 11/10/2022]
Abstract
The α-arylation of enolizable aryl ketones can be carried out with aryl halides under transition-metal-free conditions using KOtBu in DMF. The α-aryl ketones thus obtained can be used for step- and cost-economic syntheses of fused heterocycles and Tamoxifen. Mechanistic studies demonstrate the synergetic role of base and solvent for the initiation of the radical process.
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Affiliation(s)
- Martin Pichette Drapeau
- Institut Charles Gerhardt Montpellier, ENSCM, 8 rue de l'Ecole Normale, 34296 Montpellier (France).,Département de chimie, Pavillon Alexandre-Vachon, Université Laval, 1045 avenue de la Médecine, Québec (Qc) G1V 0A6 (Canada)
| | - Indira Fabre
- UPMC-ENS-CNRS-UMR 8640, Ecole Normale Supérieure, Département de chimie 24 rue Lhomond, 75231 Paris (France).,Institut de Recherche de Chimie Paris, CNRS-Chimie ParisTech, 11 rue Pierre et Marie Curie, 75005 Paris (France)
| | - Laurence Grimaud
- UPMC-ENS-CNRS-UMR 8640, Ecole Normale Supérieure, Département de chimie 24 rue Lhomond, 75231 Paris (France)
| | - Ilaria Ciofini
- Institut de Recherche de Chimie Paris, CNRS-Chimie ParisTech, 11 rue Pierre et Marie Curie, 75005 Paris (France)
| | - Thierry Ollevier
- Département de chimie, Pavillon Alexandre-Vachon, Université Laval, 1045 avenue de la Médecine, Québec (Qc) G1V 0A6 (Canada)
| | - Marc Taillefer
- Institut Charles Gerhardt Montpellier, ENSCM, 8 rue de l'Ecole Normale, 34296 Montpellier (France).
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44
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Tiwari AR, Bhanage BM. Transition-metal free synthesis of quinazolinones via tandem cyclization of 2-halobenzoic acids with amidines. RSC Adv 2015. [DOI: 10.1039/c5ra11159e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
A simple protocol for the synthesis of quinazoline-4(3H)-ones by tandem cyclization of 2-halobenzoic acids with amidines has been developed by using KOH as a base in DMSO at 120 °C.
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Affiliation(s)
- Abhishek R. Tiwari
- Department of Chemistry
- Institute of Chemical Technology (ICT)
- Mumbai – 400019
- India
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45
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Mondal B, Roy B. Di-tert-butyl peroxide (DTBP) promoted dehydrogenative coupling: an expedient and metal-free synthesis of oxindoles via intramolecular C(sp2)–H and C(sp3)–H bond activation. RSC Adv 2015. [DOI: 10.1039/c5ra09055e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient di-tert-butyl peroxide (DTBP) promoted synthesis of oxindole has been developed. This methodology involves C(sp3)–H and C(sp2)–H bond activation under metal-free conditions.
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Affiliation(s)
- Biplab Mondal
- Department of Chemistry
- University of Kalyani
- Kalyani
- India
| | - Brindaban Roy
- Department of Chemistry
- University of Kalyani
- Kalyani
- India
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46
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Nambo M, Yar M, Smith JD, Crudden CM. The Concise Synthesis of Unsymmetric Triarylacetonitriles via Pd-Catalyzed Sequential Arylation: A New Synthetic Approach to Tri- and Tetraarylmethanes. Org Lett 2014; 17:50-3. [DOI: 10.1021/ol503213z] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Masakazu Nambo
- Institute
of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya 464-8602, Japan
| | - Muhammad Yar
- Institute
of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya 464-8602, Japan
| | - Joel D. Smith
- Department
of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Cathleen M. Crudden
- Institute
of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya 464-8602, Japan
- Department
of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
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47
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Zhou S, Doni E, Anderson GM, Kane RG, MacDougall SW, Ironmonger VM, Tuttle T, Murphy JA. Identifying the Roles of Amino Acids, Alcohols and 1,2-Diamines as Mediators in Coupling of Haloarenes to Arenes. J Am Chem Soc 2014; 136:17818-26. [DOI: 10.1021/ja5101036] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Shengze Zhou
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
| | - Eswararao Doni
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
| | - Greg M. Anderson
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
| | - Ryan G. Kane
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
| | - Scott W. MacDougall
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
| | - Victoria M. Ironmonger
- GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage SG1 2NY, United Kingdom
| | - Tell Tuttle
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
| | - John A. Murphy
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
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48
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Roopan SM, Palaniraja J. Synthetic journey towards transition metal-free arylations. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1880-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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49
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Hurst TE, Gorman RM, Drouhin P, Perry A, Taylor RJK. A Direct CH/ArH Coupling Approach to Oxindoles, Thio‐oxindoles, 3,4‐Dihydro‐1
H
‐quinolin‐2‐ones, and 1,2,3,4‐Tetrahydroquinolines. Chemistry 2014; 20:14063-73. [DOI: 10.1002/chem.201403917] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Indexed: 12/27/2022]
Affiliation(s)
- Timothy E. Hurst
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
| | - Ryan M. Gorman
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
| | - Pauline Drouhin
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
| | - Alexis Perry
- Physics and Medical Imaging, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Physics Building, Stocker Road, Exeter, EX4 4QL (UK)
| | - Richard J. K. Taylor
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
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50
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Gao Q, Wu X, Li Y, Liu S, Meng X, Wu A. Iodine-Promoted Sequential C(sp3)H Functionalization Reactions: An Annulation Strategy for the Construction of 3-Methylthio-4-arylmaleimides. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400474] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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