1
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Jin YH, Wang XP, Ning LW, Wang RJ, Li Y, Zhang Y, Chen LY. Organocatalyzed Asymmetric Michael Addition of 3-Fluorooxindole to Vinylidene Bisphosphonates. J Org Chem 2024; 89:8435-8446. [PMID: 38843406 DOI: 10.1021/acs.joc.4c00289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
Both the 3-fluorooxindole and germinal bisphosphonate structural motifs are prevalent in bioactive molecules because of their associated biological activities. We describe an approach to accessing 3,3-disubstituted 3-fluorooxindoles bearing a geminal bisphosphate fragment through a highly enantioselective Michael addition reaction between 3-fluorooxindoles and vinylidene bisphosphonates. These reactions are catalyzed by a commercially available cinchona alkaloid catalyst, have a broad substrate scope concerning 3-fluorooxindoles, and provide the corresponding addition products in a yield of up to 95% with an enantiomeric excess of up to 95%. A reasonable reaction pathway to explain the observed stereochemistry is also proposed.
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Affiliation(s)
- Yi-Hu Jin
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
| | - Xiao-Ping Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
| | - Li-Wen Ning
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
| | - Ren-Jie Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
| | - Ya Li
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
| | - Youcan Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
| | - Ling-Yan Chen
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
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2
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Schmitt HL, Martymianov D, Green O, Delcaillau T, Park Kim YS, Morandi B. Regiodivergent Ring-Expansion of Oxindoles to Quinolinones. J Am Chem Soc 2024; 146:4301-4308. [PMID: 38335924 PMCID: PMC10885155 DOI: 10.1021/jacs.3c12119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
The development of divergent methods to expedite structure-activity relationship studies is crucial to streamline discovery processes. We developed a rare example of regiodivergent ring expansion to access two regioisomers from a common starting material. To enable this regiodivergence, we identified two distinct reaction conditions for transforming oxindoles into quinolinone isomers. The presented methods proved to be compatible with a variety of functional groups, which enabled the late-stage diversification of bioactive oxindoles as well as facilitated the synthesis of quinolinone drugs and their derivatives.
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Affiliation(s)
- Hendrik L Schmitt
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Den Martymianov
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Ori Green
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Tristan Delcaillau
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Young Seo Park Kim
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
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3
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Song JR, Li XJ, Shi J, Chi Q, Wu W, Ren H. Direct synthesis of N-functionalized indoles through isomerization of azomethine ylides. Org Biomol Chem 2024; 22:741-744. [PMID: 38170630 DOI: 10.1039/d3ob01393f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
An unexpected isomerization of azomethine ylides generated in situ from isatin with indoline-2-carboxylic acid has been disclosed, providing direct access to N-functionalized indole scaffolds. This protocol has good functional group tolerance and provides various 3-(1H-indol-1-yl)indolin-2-one derivatives in moderate to high yields simply by using alcohol as the solvent, with no additional additive being required.
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Affiliation(s)
- Jun-Rong Song
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
| | - Xiong-Jiang Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
| | - Jun Shi
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
| | - Qin Chi
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
| | - Wei Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
| | - Hai Ren
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China.
- The Natural Products Research Center of Guizhou Province, Guiyang 550014, P. R. China
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4
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Li S, Liu X, Tung CH, Liu L. Late-Stage Chemo- and Enantioselective Oxidation of Indoles to C3-Monosubstituted Oxindoles. J Am Chem Soc 2023. [PMID: 38038721 DOI: 10.1021/jacs.3c11742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Catalytic asymmetric preparation of chiral 3-monosubstituted oxindoles represents a significant challenge in synthetic chemistry due to the ease of racemization of the tertiary stereocenter through enolization. Here, we describe a general titanium-catalyzed chemo- and enantioselective indole oxidation to produce a diverse set of chiral 3-monosubstituted oxindoles with up to 96% yield, 99% ee, and with a substrate/catalyst ratio of 10,000 by using the combination of a simple titanium(salan) catalyst with green and atom-economic terminal oxidant H2O2. The mild approach tolerates a broad range of functional groups, enabling late-stage asymmetric diversification of a series of commercial drugs and natural products together with late-stage asymmetric construction of a wide set of enzyme antagonists, all of which are difficult to achieve through existing methods.
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Affiliation(s)
- Song Li
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Xigong Liu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Chen-Ho Tung
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Lei Liu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
- Shenzhen Research Institute of Shandong University, Shenzhen 518057, China
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5
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Zhou X, Wang J, Shen Y, Ma D, Zhao Y, Wu J. Cp 2Fe-Mediated Electrochemical Synthesis of Phosphorylated Oxindoles and Indolo[2,1- a]isoquinolin-6(5 H)-ones. J Org Chem 2023. [PMID: 37990818 DOI: 10.1021/acs.joc.3c02017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
An efficient and environmentally friendly electrochemical synthesis of phosphorylated oxindoles and indolo[2,1-a]isoquinolin-6(5H)-ones mediated by readily available Cp2Fe has been developed, which illustrated a broad substrate scope and diverse functional group compatibility. This protocol featured an external oxidant-free process and was at room temperature, which was proposed to be driven by the anodic oxidation of Cp2Fe.
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Affiliation(s)
- Xiaocong Zhou
- Institute of Drug Discovery Technology, Ningbo University, Zhejiang 315211, China
| | - Jian Wang
- Institute of Drug Discovery Technology, Ningbo University, Zhejiang 315211, China
| | - Yirui Shen
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, Zhejiang China
- Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China
| | - Dumei Ma
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Zhejiang 315211, China
| | - Yufen Zhao
- Institute of Drug Discovery Technology, Ningbo University, Zhejiang 315211, China
| | - Ju Wu
- Institute of Drug Discovery Technology, Ningbo University, Zhejiang 315211, China
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6
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Huang W, Yang J, Gao K, Wang Z, Huang G, Yao W, Yang J. Construction of Enantioenriched Quaternary C-Cl Oxindoles through Palladium-Catalyzed Asymmetric Allylic Substitution with Chloroenolates. J Org Chem 2023; 88:15298-15310. [PMID: 37831540 DOI: 10.1021/acs.joc.3c01811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
A palladium-catalyzed asymmetric chloroenolate allylation with vinyl benzoxazinanones under mild reaction conditions has been developed, affording a series of optically active 3,3-disubstituted oxindoles exhibiting a chloro-group and a linear aryl amino side chain in good yields with up to 96% ee. Versatile functional group tolerance on the benzene ring has been demonstrated, and the utility of this method was probed by a scale-up synthesis and highlighted by product derivatizations.
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Affiliation(s)
- Wen Huang
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, P. R. China
- Advanced Research Institute and School of Pharmaceutical Science, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
| | - Jingjie Yang
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, P. R. China
- Advanced Research Institute and School of Pharmaceutical Science, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
| | - Kai Gao
- Advanced Research Institute and School of Pharmaceutical Science, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
| | - Zhiming Wang
- Advanced Research Institute and School of Pharmaceutical Science, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
| | - Guobo Huang
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
| | - Weijun Yao
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, P. R. China
| | - Jianguo Yang
- Advanced Research Institute and School of Pharmaceutical Science, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
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7
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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: 9] [Impact Index Per Article: 9.0] [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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8
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Jiang SY, Shi J, Wang W, Sun YZ, Wu W, Song JR, Yang X, Hao GF, Pan WD, Ren H. Copper-Catalyzed Selective Electron Transfer Enables Switchable Divergent Synthesis of 3-Functionalized Oxindoles. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Shu-Yun Jiang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Jun Shi
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Wei Wang
- National Key Laboratory of Green Pesticide, State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Yan-Zheng Sun
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Wei Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Jun-Rong Song
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Xiaoyan Yang
- Department of Pediatrics, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Ge-Fei Hao
- National Key Laboratory of Green Pesticide, State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Wei-Dong Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Hai Ren
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
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9
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Tang WX, Chen KQ, Sun DQ, Chen XY. Photoinduced halogen-bonding enabled synthesis of oxindoles and isoindolinones from aryl iodides. Org Biomol Chem 2023; 21:715-718. [PMID: 36412116 DOI: 10.1039/d2ob01818g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We report the use of halogen bonding (XB) for the generation of aryl radicals from aryl halides under blue light irradiation and applied it in radical generation/1,5-hydrogen-atom transfer/radical cyclization cascade reactions for the synthesis of oxindoles and isoindolinones. On the basis of experimental studies, we propose that DBU can serve as a suitable XB acceptor with aryl halides for the formation of a photoactive electron donor and acceptor complex.
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Affiliation(s)
- Wen-Xin Tang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
| | - Kun-Quan Chen
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
| | - De-Qun Sun
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
| | - Xiang-Yu Chen
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China. .,Binzhou Institute of Technology, Weiqiao-UCAS Science and Technology Park, Binzhou, Shandong Province 256606, P. R. China
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10
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Sanap D, Avhad L, Ghotekar S, Gaikwad ND. An expedient synthesis of C3-arylidene-oxindole derivatives using calcite nanoflowers as an efficient heterogeneous catalyst. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2022.110387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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11
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Xie C, Kim J, Mai BK, Cao S, Ye R, Wang XY, Liu P, Kwon O. Enantioselective Synthesis of Quaternary Oxindoles: Desymmetrizing Staudinger-Aza-Wittig Reaction Enabled by a Bespoke HypPhos Oxide Catalyst. J Am Chem Soc 2022; 144:21318-21327. [PMID: 36375169 PMCID: PMC10746329 DOI: 10.1021/jacs.2c09421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper describes a catalytic asymmetric Staudinger-aza-Wittig reaction of (o-azidoaryl)malonates, allowing access to chiral quaternary oxindoles through phosphine oxide catalysis. We designed a novel HypPhos oxide catalyst to enable the desymmetrizing Staudinger-aza-Wittig reaction through the PIII/PV═O redox cycle in the presence of a silane reductant and an IrI-based Lewis acid. The reaction occurs under mild conditions, with good functional group tolerance, a wide substrate scope, and excellent enantioselectivity. Density functional theory revealed that the enantioselectivity in the desymmetrizing reaction arose from the cooperative effects of the IrI species and the HypPhos catalyst. The utility of this methodology is demonstrated by the (formal) syntheses of seven alkaloid targets: (-)-gliocladin C, (-)-coerulescine, (-)-horsfiline, (+)-deoxyeseroline, (+)-esermethole, (+)-physostigmine, and (+)-physovenine.
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Affiliation(s)
- Changmin Xie
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Jacob Kim
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Binh Khanh Mai
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Shixuan Cao
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Rong Ye
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Xin-Yi Wang
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
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12
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Ding WY, Zhao HW, Cheng JK, Lu Z, Xiang SH, Tan B. β-C-Glycosylation with 2-Oxindole Acceptors via Palladium-Catalyzed Decarboxylative Reactions. Org Lett 2022; 24:7031-7036. [PMID: 36129413 DOI: 10.1021/acs.orglett.2c02881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This report describes a highly efficient β-selective C-glycosylation of bicyclic galactals with 2-oxindoles through a palladium-catalyzed decarboxylative pathway. A variety of substrates representing both glycosyl donors and acceptors could be transformed in greater than 90% yields under mild reaction conditions. The decarboxylation intermediate of galactal could serve as an efficient base to deprotonate the enol tautomer of 2-oxindole and enhance its nucleophilicity. The β-selective nucleophilic addition at the anomeric center originates from the steric hindrance imposed by the palladium and bulky ligand.
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Affiliation(s)
- Wei-Yi Ding
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hao-Wen Zhao
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jun Kee Cheng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhiqiang Lu
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China
| | - Shao-Hua Xiang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin Tan
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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13
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Jia F, He J, Wei Y, Liu Y, Gu Y, Vaccaro L, Liu P. C4-Sulfenylation of 4-iodine-1H-pyrazole-5-amine with arylsulfonyl hydrazide in water. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Delcaillau T, Schmitt HL, Boehm P, Falk E, Morandi B. Palladium-Catalyzed Carbothiolation of Alkenes and Alkynes for the Synthesis of Heterocycles. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01178] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Tristan Delcaillau
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
| | - Hendrik L. Schmitt
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
| | - Philip Boehm
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
| | - Eric Falk
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
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15
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Yuan H, Lu D, Liang C, Mo D. Synthesis of Spirooxindole‐Benzo[d]oxazoles and Dihydrobenzofurans through Cycloaddition and Rearrangement of
N
‐Vinyl Nitrones and Arynes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101372] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Hao Yuan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Collaborative Innovation Center for Guangxi Ethnic Medicine School of Chemistry and Pharmaceutical Sciences Guangxi Normal University 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Dong‐Liu Lu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Collaborative Innovation Center for Guangxi Ethnic Medicine School of Chemistry and Pharmaceutical Sciences Guangxi Normal University 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Cui Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Collaborative Innovation Center for Guangxi Ethnic Medicine School of Chemistry and Pharmaceutical Sciences Guangxi Normal University 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Dong‐Liang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Collaborative Innovation Center for Guangxi Ethnic Medicine School of Chemistry and Pharmaceutical Sciences Guangxi Normal University 15 Yu Cai Road Guilin 541004 People's Republic of China
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16
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Xue Y, Guo Z, Chen X, Li J, Zou D, Wu Y, Wu Y. Copper-promoted difunctionalization of unactivated alkenes with silanes. Org Biomol Chem 2022; 20:989-994. [PMID: 35018960 DOI: 10.1039/d1ob02318g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
An efficient copper-catalyzed cascade difunctionalization of N-allyl anilines toward the synthesis of silylated indolines using commercially available silanes has been reported. This strategy provides a new avenue for the synthesis of a diverse array of indolines in reasonable yields. Preliminary mechanistic investigations indicate that the reaction probably proceeds via a radical pathway with unactivated alkenes as radical acceptors and simple silanes as radical precursors. This protocol is distinguished by its atom economy, broad substrate scope and readily available starting materials.
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Affiliation(s)
- Yingying Xue
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Zhuangzhuang Guo
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Xiaoyu Chen
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Jingya Li
- TetranovBiopharm, LLC., Zhengzhou, 450052, People's Republic of China
| | - Dapeng Zou
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Yusheng Wu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450052, People's Republic of China. .,Tetranov International, Inc., 100 Jersey Avenue, Suite A340, New Brunswick, NJ 08901, USA.
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17
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Golla S, Anugu N, Jalagam S, Kokatla HP. Rongalite-induced transition-metal and hydride-free reductive aldol reaction: a rapid access to 3,3'-disubstituted oxindoles and its mechanistic studies. Org Biomol Chem 2022; 20:808-816. [PMID: 34994750 DOI: 10.1039/d1ob02284a] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A transition-metal and hydride-free reductive aldol reaction has been developed for the synthesis of biologically active 3,3'-disubstituted oxindoles from isatin derivatives using rongalite. In this protocol, rongalite plays a dual role as a hydride-free reducing agent and a C1 unit donor. This transition metal-free method enables the synthesis of a wide range of 3-hydroxy-3-hydroxymethyloxindoles and 3-amino-3-hydroxymethyloxindoles with 79-96% yields. One-pot reductive hydroxymethylation, inexpensive rongalite (ca. $0.03/1 g), mild reaction conditions and short reaction time are some of the key features of this synthetic method. This protocol is also applicable to gram scale synthesis.
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Affiliation(s)
- Sivaparwathi Golla
- Department of Chemistry, National Institute of Technology Warangal, Warangal, Telangana-506004, India.
| | - Naveenkumar Anugu
- Department of Chemistry, National Institute of Technology Warangal, Warangal, Telangana-506004, India.
| | - Swathi Jalagam
- Department of Chemistry, National Institute of Technology Warangal, Warangal, Telangana-506004, India.
| | - Hari Prasad Kokatla
- Department of Chemistry, National Institute of Technology Warangal, Warangal, Telangana-506004, India.
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18
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Cheng H, Luo Y, Lam TL, Liu Y, Che CM. Visible-light-induced radical cascade reaction to prepare oxindoles via alkyl radical addition to N-arylacryl amides. Org Chem Front 2022. [DOI: 10.1039/d2qo01140a] [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
A photochemical approach towards oxindoles with C3 quaternary centers by the radical cascade reaction of α,β-unsaturated N-arylacryl amides with alkyl bromides or iodides upon visible light irradiation under mild reaction conditions was developed.
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Affiliation(s)
- Hanchao Cheng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. China
| | - Yunfeng Luo
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. China
| | - Tsz-Lung Lam
- State Key Laboratory of Synthetic Chemistry, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Yungen Liu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. China
| | - Chi-Ming Che
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. China
- State Key Laboratory of Synthetic Chemistry, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
- HKU Shenzhen Institute of Research and Innovation, Shenzhen, Guangdong 518057, P. R. China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, Units 1503-1511, 15/F., Building 17W, Hong Kong Science Park, New Territories, Hong Kong, China
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19
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Liu YL, Wang XP, Wei J, Li Y. Synthesis of oxindoles bearing a stereogenic 3-fluorinated carbon center from 3-fluorooxindoles. Org Biomol Chem 2021; 20:538-552. [PMID: 34935824 DOI: 10.1039/d1ob01964c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
3,3-Disubstituted oxindoles bearing a stereogenic 3-fluorinated carbon center are privileged structural motifs present in many bioactive molecules. The straightforward functionalization of 3-fluorooxindoles constitutes a powerful method for the synthesis of 3-fully substituted 3-fluorooxindoles, taking advantage of the ease of preparation of 3-fluorooxindoles with different substitution patterns and the atom efficiency of chemical reactions. In the past decade, many papers have appeared on the synthesis of 3-fully substituted 3-fluorooxindoles from 3-fluorooxindoles. Importantly, many asymmetric catalytic methods have been developed for the enantioselective synthesis of these valuable compounds. This review summarizes the achievements in this area, and overviews synthetic opportunities that still exist.
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Affiliation(s)
- Yong-Liang Liu
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China.
| | - Xiao-Ping Wang
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China.
| | - Jie Wei
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China.
| | - Ya Li
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China. .,Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, China
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20
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Wang X, Liu Y, Wei J, Chen L, Li Y. Asymmetric Synthesis of α‐Amino Acids Bearing a 3‐Alkyloxindole Structural Motif. ChemistrySelect 2021. [DOI: 10.1002/slct.202102857] [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)
- Xiao‐Ping Wang
- School of Chemistry and Chemical Engineering Shanghai University of Engineering Science 333 Longteng Road Shanghai 201620 China
| | - Yong‐Liang Liu
- School of Chemistry and Chemical Engineering Shanghai University of Engineering Science 333 Longteng Road Shanghai 201620 China
| | - Jie Wei
- School of Chemistry and Chemical Engineering Shanghai University of Engineering Science 333 Longteng Road Shanghai 201620 China
| | - Ling‐Yan Chen
- School of Chemistry and Chemical Engineering Shanghai University of Engineering Science 333 Longteng Road Shanghai 201620 China
| | - Ya Li
- School of Chemistry and Chemical Engineering Shanghai University of Engineering Science 333 Longteng Road Shanghai 201620 China
- Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA Institute for Frontier Medical Technology Shanghai University of Engineering Science 333 Longteng Road Shanghai 201620 China
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21
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Cheng C, Xiang JN, Zhu YP, Peng ZH, Li JH. Nickel-Catalyzed Arylcarbamoylation of Alkenes of N-( o-Iodoaryl)acrylamides with Nitroarenes via Reductive Aminocarbonylation: Facile Synthesis of Carbamoyl-Substituted Oxindoles. Org Lett 2021; 23:9543-9547. [PMID: 34860537 DOI: 10.1021/acs.orglett.1c03762] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Nickel-catalyzed arylcarbamoylation reactions of alkenes of N-(o-haloaryl)acrylamides with CO and nitroarenes via reductive aminocarbonylation to produce carbamoyl-substituted oxindoles with an all-carbon quaternary stereogenic center are presented. Starting with N-(o-haloaryl)acrylamides, simple CO, and inexpensive nitroarenes and using a Ni catalyst, a dinitrogen-based ligand, a Zn reductant, a TMSCl additive, and a base system, this protocol enables the synthesis of various carbamoyl-substituted oxindoles and allows the efficient late-stage derivatization of valuable molecules.
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Affiliation(s)
- Chaozhihui Cheng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.,Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jian-Nan Xiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Yan-Ping Zhu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, Shandong 264005, China
| | - Zhi-Hong Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.,School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, Shandong 264005, China.,Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 475004, China
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22
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Sakla AP, Panda B, Laxmikeshav K, Soni JP, Bhandari S, Godugu C, Shankaraiah N. Dithiocarbamation of spiro-aziridine oxindoles: a facile access to C3-functionalised 3-thiooxindoles as apoptosis inducing agents. Org Biomol Chem 2021; 19:10622-10634. [PMID: 34870311 DOI: 10.1039/d1ob02102h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein, we report the first dithiocarbamation of spiro-aziridine oxindoles involving regiospecific ring-opening by using in situ generated nucleophilic dithiocarbamates as an instant source of sulfur. This approach afforded C3-functionalised-3-thiooxindoles in good to excellent yields with a wide substrate scope under catalyst-free and mild reaction conditions. These compounds were screened for their anticancer activity against a panel of human cancer cell lines, wherein compound 3u exhibited significant cytotoxic activity against human lung cancer cells with an IC50 value of 4.31 ± 1.88 μM. Phase contrast microscopy as well as different staining assays such as acridine orange/ethidium bromide (AO/EB), DAPI and DCFDA demonstrated the induction of apoptosis in A549 lung cancer cells after treatment with compound 3u. In addition, the clonogenic assay and migration assay demonstrated the ability of compound 3u to inhibit colony formation and cell migration, respectively, in A549 cells in a dose-dependent manner.
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Affiliation(s)
- Akash P Sakla
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad - 500037, India.
| | - Biswajit Panda
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad - 500037, India
| | - Kritika Laxmikeshav
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad - 500037, India.
| | - Jay Prakash Soni
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad - 500037, India.
| | - Sonal Bhandari
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad - 500037, India.
| | - Chandraiah Godugu
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad - 500037, India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad - 500037, India.
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23
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Lv M, Li X. Ni(II)-Catalyzed Asymmetric Nitration of Oxindoles: Construction of Cipargamin Analogues. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04460] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mingjun Lv
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xiaoxun Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
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24
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Oiarbide M, Palomo C. Extended Enolates: Versatile Intermediates for Asymmetric C-H Functionalization via Noncovalent Catalysis. Chemistry 2021; 27:10226-10246. [PMID: 33961323 PMCID: PMC8361983 DOI: 10.1002/chem.202100756] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Indexed: 12/22/2022]
Abstract
Catalyst-controlled functionalization of unmodified carbonyl compounds is a relevant operation in organic synthesis, especially when high levels of site- and stereoselectivity can be attained. This objective is now within reach for some subsets of enolizable substrates using various types of activation mechanisms. Recent contributions to this area include enantioselective transformations that proceed via transiently generated noncovalent di(tri)enolate-catalyst coordination species. While relatively easier to form than simple enolate congeners, di(tri)enolates are ambifunctional in nature and so control of the reaction regioselectivity becomes an issue. This Minireview discusses in some detail this and other problems, and how noncovalent activation approaches based on metallic and metal free catalysts have been developed to advance the field.
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Affiliation(s)
- Mikel Oiarbide
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHUManuel Lardizabal 320018San SebastiánSpain
| | - Claudio Palomo
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHUManuel Lardizabal 320018San SebastiánSpain
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25
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Chen J, Li JH, Zhu YP, Wang QA. Copper-catalyzed enantioselective arylboronation of activated alkenes leading to chiral 3,3′-disubstituted oxindoles. Org Chem Front 2021. [DOI: 10.1039/d1qo00186h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Copper-catalyzed asymmetric arylboronation of activated alkenes for producing highly enantioenriched 3-boroalkyl oxindoles and incorporating pharmacophores is depicted.
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Affiliation(s)
- Jiangfei Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- China
- School of Pharmacy
| | - Yan-Ping Zhu
- School of Pharmacy
- Key Laboratory of Molecular Pharmacology and Drug Evaluation
- Ministry of Education
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong
- Yantai University
| | - Qiu-An Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- China
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26
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Li X, Kutta RJ, Jandl C, Bauer A, Nuernberger P, Bach T. Photochemically Induced Ring Opening of Spirocyclopropyl Oxindoles: Evidence for a Triplet 1,3‐Diradical Intermediate and Deracemization by a Chiral Sensitizer. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008384] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xinyao Li
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Roger J. Kutta
- Institut für Physikalische und Theoretische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - Christian Jandl
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Andreas Bauer
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Patrick Nuernberger
- Institut für Physikalische und Theoretische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
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27
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Yueting W, Yali L, Jing H, Xuezhen L, Ping L, Jie Z. TBAI-mediated sulfenylation of arenes with arylsulfonyl hydrazides in DPDME. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131646] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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28
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Li X, Kutta RJ, Jandl C, Bauer A, Nuernberger P, Bach T. Photochemically Induced Ring Opening of Spirocyclopropyl Oxindoles: Evidence for a Triplet 1,3-Diradical Intermediate and Deracemization by a Chiral Sensitizer. Angew Chem Int Ed Engl 2020; 59:21640-21647. [PMID: 32757341 PMCID: PMC7756555 DOI: 10.1002/anie.202008384] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/23/2020] [Indexed: 12/17/2022]
Abstract
The photochemical deracemization of spiro[cyclopropane‐1,3′‐indolin]‐2′‐ones (spirocyclopropyl oxindoles) was studied. The corresponding 2,2‐dichloro compound is configurationally labile upon direct irradiation at λ=350 nm and upon irradiation at λ=405 nm in the presence of achiral thioxanthen‐9‐one as the sensitizer. The triplet 1,3‐diradical intermediate generated in the latter reaction was detected by transient absorption spectroscopy and its lifetime determined (τ=22 μs). Using a chiral thioxanthone or xanthone, with a lactam hydrogen bonding site as a photosensitizer, allowed the deracemization of differently substituted chiral spirocyclopropyl oxindoles with yields of 65–98 % and in 50–85 % ee (17 examples). Three mechanistic contributions were identified to co‐act favorably for high enantioselectivity: the difference in binding constants to the chiral thioxanthone, the smaller molecular distance in the complex of the minor enantiomer, and the lifetime of the intermediate 1,3‐diradical.
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Affiliation(s)
- Xinyao Li
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Roger J Kutta
- Institut für Physikalische und Theoretische Chemie, Universität Regensburg, Universitätsstr. 31, 93053, Regensburg, Germany
| | - Christian Jandl
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Andreas Bauer
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Patrick Nuernberger
- Institut für Physikalische und Theoretische Chemie, Universität Regensburg, Universitätsstr. 31, 93053, Regensburg, Germany
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstraße 4, 85747, Garching, Germany
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29
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Marchese AD, Larin EM, Mirabi B, Lautens M. Metal-Catalyzed Approaches toward the Oxindole Core. Acc Chem Res 2020; 53:1605-1619. [PMID: 32706589 DOI: 10.1021/acs.accounts.0c00297] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The oxindole scaffold is a privileged structural motif that is found in a variety of bioactive targets and natural products. Moreover, derivatives of the oxindole structure are widely present in a number of biologically relevant compounds and are key intermediates in the synthesis of diverse natural products and pharmaceuticals. Therefore, novel methods to obtain oxindoles remain of high priority in synthetic organic chemistry.Over the past several decades, novel transition-metal-catalyzed methodologies have been applied toward the synthesis of a variety of heterocycles. A detailed mechanistic understanding facilitates the disruption of traditional catalytic pathways to access useful synthetic intermediates. The strategies employed have generally revolved around the generation of high-energy organometallic intermediates, which undergo cyclization reactions through domino processes. Domino cyclization methodologies are therefore attractive, as they allow facile access to functionalized oxindoles containing all-carbon quaternary centers or tetrasubstituted olefins with high chemo- and stereoselectivities. Furthermore, these developed synthetic strategies can often be easily applied in the syntheses of other related scaffolds.In this Account, we discuss the three unique strategies that our group has leveraged for the synthesis of valuable oxindole scaffolds. The first section in this Account outlines the use of an initial oxidative addition to a C(sp2)-X bond, followed by a migratory insertion, yielding a neopentyl species amenable to a variety of subsequent functionalizations. From this reactive neopentyl metal species, we have reported C-X reductive eliminations, anionic capture cascade reactions, and intramolecular C-H functionalization processes. The second section of this Account summarizes our group's findings on 1,2-insertions of a metal-nucleophile species across an unsaturation, generating a reactive organometallic intermediate; subsequent reactions with tethered electrophiles form the desired heterocyclic core. We have explored a wide array of transition metal-catalyzed strategies using this approach, including rhodium-catalyzed conjugate additions, an asymmetric copper-catalyzed borylcupration, and a palladium(II)-catalyzed chloropalladation protocol. The final section of this Account details the use of dual-metal catalysis to perform a cyclization through a C-H functionalization-allylation domino reaction. Throughout this Account, we provide details of mechanistic studies that better enabled our understanding of the domino processes.Overall, our group has developed methods exploiting the unique reactivity of palladium, nickel, copper, rhodium, and ruthenium catalysts to develop methods toward a wide array of oxindole scaffolds. On the basis of the utility, diversity, and applicability of the strategies developed, we believe that they will prove to be highly useful in the syntheses of other important targets and inspire further development and mechanistic understanding of various metal-catalyzed processes.
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Affiliation(s)
- Austin D. Marchese
- Department of Chemistry, Davenport Chemical Laboratories, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Egor M. Larin
- Department of Chemistry, Davenport Chemical Laboratories, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Bijan Mirabi
- Department of Chemistry, Davenport Chemical Laboratories, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Mark Lautens
- Department of Chemistry, Davenport Chemical Laboratories, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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30
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Wang B, Peng F, Huang W, Zhou J, Zhang N, Sheng J, Haruehanroengra P, He G, Han B. Rational drug design, synthesis, and biological evaluation of novel chiral tetrahydronaphthalene-fused spirooxindole as MDM2-CDK4 dual inhibitor against glioblastoma. Acta Pharm Sin B 2020; 10:1492-1510. [PMID: 32963945 PMCID: PMC7488488 DOI: 10.1016/j.apsb.2019.12.013] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 11/17/2019] [Accepted: 12/12/2019] [Indexed: 02/08/2023] Open
Abstract
Simultaneous inhibition of MDM2 and CDK4 may be an effective treatment against glioblastoma. A collection of chiral spirocyclic tetrahydronaphthalene (THN)-oxindole hybrids for this purpose have been developed. Appropriate stereochemistry in THN-fused spirooxindole compounds is key to their inhibitory activity: selectivity differed by over 40-fold between the least and most potent stereoisomers in time-resolved FRET and KINOMEscan® in vitro assays. Studies in glioblastoma cell lines showed that the most active compound ent-4g induced apoptosis and cell cycle arrest by interfering with MDM2 -P53 interaction and CDK4 activation. Cells treated with ent-4g showed up-regulation of proteins involved in P53 and cell cycle pathways. The compound showed good anti-tumor efficacy against glioblastoma xenografts in mice. These results suggested that rational design, asymmetric synthesis and biological evaluation of novel tetrahydronaphthalene fused spirooxindoles could generate promising MDM2-CDK4 dual inhibitors in glioblastoma therapy.
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31
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Zhou F, Zhu L, Pan BW, Shi Y, Liu YL, Zhou J. Catalytic enantioselective construction of vicinal quaternary carbon stereocenters. Chem Sci 2020; 11:9341-9365. [PMID: 34094201 PMCID: PMC8162142 DOI: 10.1039/d0sc03249b] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
This review summarizes the advances in the catalytic enantioselective construction of vicinal quaternary carbon stereocenters, introduces major synthetic strategies and discusses their advantages and limitations, highlights the application of known protocols in the total synthesis of natural products, and outlines the synthetic opportunities. This review summarizes the advances in catalytic enantioselective construction of vicinal quaternary carbon stereocenters, introduces major synthetic strategies and discusses their advantages and limitations, and outlines the synthetic opportunities.![]()
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Affiliation(s)
- Feng Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University Shanghai 200062 P. R. China
| | - Lei Zhu
- School of Chemistry and Materials Science, Hubei Engineering University Hubei 432000 P. R. China
| | - Bo-Wen Pan
- School of Pharmaceutical, Guizhou University of Traditional Chinese Medicine Guiyang 550002 P. R. China
| | - Yang Shi
- School of Pharmaceutical, Guizhou University of Traditional Chinese Medicine Guiyang 550002 P. R. China
| | - Yun-Lin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University Guangzhou 510006 P. R. China
| | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University Shanghai 200062 P. R. China .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 P. R. China
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32
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Gao B, Xu S, Du T, Li Y. Transition‐Metal‐Free Catalyzed Dearomatizative Esterification of Indole. ChemistrySelect 2020. [DOI: 10.1002/slct.201904715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Bao Gao
- Key Laboratory of Agri-Food Safety of Anhui ProvinceAnhui Agricultural University Hefei 230036 China
| | - Shasha Xu
- Key Laboratory of Agri-Food Safety of Anhui ProvinceAnhui Agricultural University Hefei 230036 China
| | - Tianri Du
- Key Laboratory of Agri-Food Safety of Anhui ProvinceAnhui Agricultural University Hefei 230036 China
| | - Yahui Li
- Key Laboratory of Agri-Food Safety of Anhui ProvinceAnhui Agricultural University Hefei 230036 China
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33
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Liang RX, Chen RY, Zhong C, Zhu JW, Cao ZY, Jia YX. 3,3′-Disubstituted Oxindoles Formation via Copper-Catalyzed Arylboration and Arylsilylation of Alkenes. Org Lett 2020; 22:3215-3218. [DOI: 10.1021/acs.orglett.0c00999] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ren-Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Ru-Yi Chen
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Chao Zhong
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Jia-Wen Zhu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Zhong-Yan Cao
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Yi-Xia Jia
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
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34
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Maity A, Roy A, Das MK, De S, Naskar M, Bisai A. Oxidative cyanation of 2-oxindoles: formal total synthesis of (±)-gliocladin C. Org Biomol Chem 2020; 18:1679-1684. [PMID: 32052001 DOI: 10.1039/c9ob02752a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient oxidative direct cyanations of 3-alkyl/aryl 2-oxindoles using Cyano-1,2-BenziodoXol-3(1H)-one (CBX) (2a) have been reported under 'transition metal-free' conditions to synthesize a wide variety of 3-cyano 3-alkyl/aryl 2-oxindoles sharing an all-carbon quaternary center under additive-free conditions. The application of this process is shown by the formal total synthesis of (±)-gliocladin C (11c) in a few steps.
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Affiliation(s)
- Arindam Maity
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India.
| | - Avishek Roy
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India.
| | - Mrinal Kanti Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India.
| | - Subhadip De
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India.
| | - Malay Naskar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India.
| | - Alakesh Bisai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India. and Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia - 741 246, West Bengal, India.
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35
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Xu XM, Chen DM, Wang ZL. Recent advances in sulfenylation of C(sp3) H bond under transition metal-free conditions. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.05.048] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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36
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Li Y, Ying F, Fu T, Yang R, Dong Y, Lin L, Han Y, Liang D, Long X. Heat- or light-induced acylarylation of unactivated alkenes towards 3-(α-acyl) indolines. Org Biomol Chem 2020; 18:5660-5665. [DOI: 10.1039/d0ob01105c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A heat- or photoredox/iron dual catalysis-enabled rare example of radical acylation across unactivated alkenes with aldehydes.
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Affiliation(s)
- Yanni Li
- School of Chemistry and Chemical Engineering
- Kunming University
- Kunming 650214
- China
| | - Fengyuan Ying
- School of Chemistry and Chemical Engineering
- Kunming University
- Kunming 650214
- China
| | - Tingfeng Fu
- School of Chemistry and Chemical Engineering
- Kunming University
- Kunming 650214
- China
| | - Ruihan Yang
- School of Chemistry and Chemical Engineering
- Kunming University
- Kunming 650214
- China
| | - Ying Dong
- College of Chemistry
- Chemical Engineering and Materials Science
- Shandong Normal University
- Jinan 250014
- China
| | - Liqing Lin
- School of Chemistry and Chemical Engineering
- Kunming University
- Kunming 650214
- China
- Research Center on Life Sciences and Environmental Sciences
| | - Yinghui Han
- School of Chemistry and Chemical Engineering
- Kunming University
- Kunming 650214
- China
- Research Center on Life Sciences and Environmental Sciences
| | - Deqiang Liang
- School of Chemistry and Chemical Engineering
- Kunming University
- Kunming 650214
- China
| | - Xianhao Long
- School of Chemistry and Chemical Engineering
- Kunming University
- Kunming 650214
- China
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37
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Hao YJ, Hu XS, Zhou Y, Zhou J, Yu JS. Catalytic Enantioselective α-Arylation of Carbonyl Enolates and Related Compounds. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04480] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yong-Jia Hao
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, People’s Republic of China
| | - Xiao-Si Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
| | - Ying Zhou
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, People’s Republic of China
| | - Jian Zhou
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, People’s Republic of China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
| | - Jin-Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
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38
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Rhodium-catalyzed synthesis of C4-chalcogenoalkylated oxindoles via Sommelet-Hauser type rearrangement of 3-diazoindolin-2-ones. J CHEM SCI 2019. [DOI: 10.1007/s12039-019-1711-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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39
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Zhang L, Wang M, Zhou M, Zhang Z, Muraoka M, Zhang W. Chiral Bicyclic Imidazole‐Catalyzed Direct Enantioselective C‐Acylation for the Synthesis of 2‐Oxindoles Bearing a Quaternary Stereocenter. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900294] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lu Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs School of PharmacyShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Mo Wang
- School of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Muxing Zhou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs School of PharmacyShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Zhenfeng Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs School of PharmacyShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Masahiro Muraoka
- Department of Applied ChemistryOsaka Institute of Technology Ohmiya 5-16-1, Asahi-ku Osaka 535-8585 Japan
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs School of PharmacyShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
- School of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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40
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Rodríguez‐Ferrer P, Sanz‐Novo M, Maestro A, Andrés JM, Pedrosa R. Synthesis of Enantioenriched 3‐Amino‐3‐Substituted Oxindoles by Stereoselective Mannich Reaction Catalyzed by Supported Bifunctional Thioureas. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900414] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Patricia Rodríguez‐Ferrer
- Instituto CINQUIMA and Departamento de Química Orgánica, Facultad de CienciasUniversidad de Valladolid Paseo de Belén 7 47011-Valladolid Spain
| | - Miguel Sanz‐Novo
- Instituto CINQUIMA and Departamento de Química Orgánica, Facultad de CienciasUniversidad de Valladolid Paseo de Belén 7 47011-Valladolid Spain
| | - Alicia Maestro
- Instituto CINQUIMA and Departamento de Química Orgánica, Facultad de CienciasUniversidad de Valladolid Paseo de Belén 7 47011-Valladolid Spain
| | - José M. Andrés
- Instituto CINQUIMA and Departamento de Química Orgánica, Facultad de CienciasUniversidad de Valladolid Paseo de Belén 7 47011-Valladolid Spain
| | - Rafael Pedrosa
- Instituto CINQUIMA and Departamento de Química Orgánica, Facultad de CienciasUniversidad de Valladolid Paseo de Belén 7 47011-Valladolid Spain
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41
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Niu B, Wu XY, Wei Y, Shi M. Palladium-Catalyzed Diastereoselective Formal [5 + 3] Cycloaddition for the Construction of Spirooxindoles Fused with an Eight-Membered Ring. Org Lett 2019; 21:4859-4863. [DOI: 10.1021/acs.orglett.9b01748] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ben Niu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, People’s Republic of China
| | - Xiao-Yun Wu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, People’s Republic of China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, People’s Republic of China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, People’s Republic of China
- Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, Guangdong 518000, China
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, People’s Republic of China
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42
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Liu Q, Li C, Lu Z, Huang G, Ye J, Gao Y, Chen H. A Direct Approach to 3‐Azo‐Substituted 2‐Oxindoles at Room Temperature by Nickel‐Catalyzed Oxidative Coupling Reaction. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Qing Liu
- College of ChemistryFuzhou University Fuzhou Fujian 350116 China
| | - Cailong Li
- College of ChemistryFuzhou University Fuzhou Fujian 350116 China
| | - Zhenxin Lu
- College of ChemistryFuzhou University Fuzhou Fujian 350116 China
| | - Gaofeng Huang
- College of ChemistryFuzhou University Fuzhou Fujian 350116 China
| | - Jinxiang Ye
- College of ChemistryFuzhou University Fuzhou Fujian 350116 China
| | - Yu Gao
- College of ChemistryFuzhou University Fuzhou Fujian 350116 China
| | - Haijun Chen
- College of ChemistryFuzhou University Fuzhou Fujian 350116 China
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43
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Cheng WF, Chen LY, Xu FF, Lin WY, Ren X, Li Y. Organocatalytic asymmetric Michael addition between 3-subsituted oxindoles and enals catalyzed by camphor sulfonyl hydrazine. Org Biomol Chem 2019; 17:885-891. [DOI: 10.1039/c8ob02934b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
3,3-Disubstituted oxindoles containing vicinal stereogenic carbon centers have been synthesized through organocatalytic asymmetric Michael addition between 3-substituted oxindoles and enals catalyzed by chiral camphor sulfonyl hydrazines (CaSHs).
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Affiliation(s)
- Wen-Fu Cheng
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
| | - Ling-Yan Chen
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
| | - Fang-Fang Xu
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
| | - Wei-Yu Lin
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
| | - Xinfeng Ren
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
| | - Ya Li
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
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44
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Liang D, Dong Q, Xu P, Dong Y, Li W, Ma Y. Synthesis of CF 3CH 2-Containing Indolines by Transition-Metal-Free Aryltrifluoromethylation of Unactivated Alkenes. J Org Chem 2018; 83:11978-11986. [PMID: 30198264 DOI: 10.1021/acs.joc.8b01861] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
With an unactivated double bond as the radical acceptor, allyl amines underwent a metal-free trifluoromethylation/cyclization cascade with CF3SO2Na (Langlois' reagent), affording CF3CH2-containing indolines and tetrahydroisoquinolines, whose practical syntheses are significant challenges. This protocol features mild conditions, low cost, and a broad substrate scope.
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Affiliation(s)
- Deqiang Liang
- Department of Chemistry , Kunming University , Kunming 650214 , China.,Yunnan Engineering Technology Research Center for Plastic Films , Kunming 650214 , China
| | - Qishan Dong
- Department of Chemistry , Kunming University , Kunming 650214 , China
| | - Penghui Xu
- Department of Chemistry , Kunming University , Kunming 650214 , China
| | - Ying Dong
- College of Chemistry, Chemical Engineering and Materials Science , Shandong Normal University , Jinan 250014 , China
| | - Weili Li
- Yunnan Engineering Technology Research Center for Plastic Films , Kunming 650214 , China
| | - Yinhai Ma
- Department of Chemistry , Kunming University , Kunming 650214 , China
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45
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Cao ZY, Zhou F, Zhou J. Development of Synthetic Methodologies via Catalytic Enantioselective Synthesis of 3,3-Disubstituted Oxindoles. Acc Chem Res 2018; 51:1443-1454. [PMID: 29808678 DOI: 10.1021/acs.accounts.8b00097] [Citation(s) in RCA: 285] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
3,3-Disubstituted oxindoles are widely distributed in natural products, drugs, and pharmaceutically active compounds. The absolute configuration and the substituents on the fully substituted C3 stereocenter of the oxindole often significantly influence the biological activity. Therefore, tremendous efforts have made to develop catalytic enantioselective syntheses of this prominent structural motif. Research in this area is further fueled by the ever-increasing demand for modern probe- and drug-discovery programs for synthetic libraries of chiral compounds that are derived from privileged scaffolds with high structural diversity. Notably, the efficient construction of fully substituted C3 stereocenters of oxindole, tetrasubstituted or all-carbon quaternary, spirocyclic or not, also becomes a test ground for new synthetic methodologies. We have been engaged in developing efficient methods for diversity-oriented synthesis of chiral 3,3-disubstituted oxindoles from readily available starting materials. We have systematically developed catalytic enantioselective methods to prepare 3-substituted 3-hydroxyoxindoles, 3-aminooxindoles, and 3-thiooxindoles, quaternary oxindoles, and spirocyclic oxindoles. These protocols can be classified into six approaches: (1) enantioselective addition of nucleophiles to isatins or isatin ketimines; (2) unprotected 3-substituted oxindoles as nucleophiles; (3) functionalization of oxindole-derived tetrasubstituted alkenes; (4) desymmetrization of oxindole-based diynes; (5) spirocyclopropyl oxindoles as donor-acceptor (D-A) cyclopropanes; and (6) elaboration of diazooxindoles. By the use of these methods, chiral oxindoles with rich structural diversity are readily accessed with high to excellent enantioselectivity. Some methods have been used for the enantioselective formal or total synthesis of natural products, bioactive compounds, or their analogues. On the basis of these studies, we developed synthetic methodologies that have potential application. We designed phosphoramide-based bifunctional catalysts for the efficient construction of quaternary oxindoles: a cinchona-alkaloid-derived phosphoramide for the Michael addition of unprotected 3-substituted oxindoles to nitroolefins with broad substrate scope and a chiral 1,2-cyclohexanediamine-derived bifunctional phosphoramide for the activation of fluorinated enol silyl ethers for the addition to isatylidene malononitrile. The phosphoramide-based catalysts achieved better enantiofacial control than the analogous H-bond-donor-derived catalysts in these reactions, suggesting the potential of the former in new chiral catalyst development. We identified chiral Au(I) and Hg(II) catalysts for olefin cyclopropanation of diazooxindoles. We further disclosed the effective activation of spirocyclopropyl oxindoles by using electron-withdrawing N-protecting groups for enantioselective [3 + 3] cycloaddition, offering the promise of constructing a diverse range of spirocyclic oxindoles by the use of such monoactivated D-A cyclopropanes. We developed tandem sequences that allow the facile synthesis of 3,3-disubstituted oxindoles from simple starting materials in a one-pot operation, including a tandem Morita-Baylis-Hillman/bromination/[3 + 2] annulation sequence, a hydrogenation/ketimine formation/asymmetric 6π electrocyclization sequence, a C-H functionalization/Michael addition or amination sequence, and an aza-Wittig/Strecker sequence. We designed oxindole-based diynes to realize a highly enantioselective Cu-catalyzed alkyne-azide cycloaddition (CuAAC), outlining the desymmetrization of prochiral diynes as an effective strategy to exploit asymmetric CuAAC. This Account focuses on the synthetic methodologies developed in our group for the catalytic enantioselective synthesis of 3,3-disubstituted oxindoles and provides an overview of our research on the design, development, and applications of these methods that will provide useful insights for the exploration of new reactions.
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Affiliation(s)
| | | | - Jian Zhou
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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46
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Benavent L, Baeza A, Freckleton M. Chiral 2-Aminobenzimidazole as Bifunctional Catalyst in the Asymmetric Electrophilic Amination of Unprotected 3-Substituted Oxindoles. Molecules 2018; 23:molecules23061374. [PMID: 29882840 PMCID: PMC6099788 DOI: 10.3390/molecules23061374] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 11/17/2022] Open
Abstract
The use of readily available chiral trans-cyclohexanediamine-benzimidazole derivatives as bifunctional organocatalysts in the asymmetric electrophilic amination of unprotected 3-substituted oxindoles is presented. Different organocatalysts were evaluated; the most successful one contained a dimethylamino moiety (5). With this catalyst under optimized conditions, different oxindoles containing a wide variety of substituents at the 3-position were aminated in good yields and with good to excellent enantioselectivities using di-tert-butylazodicarboxylate as the aminating agent. The procedure proved to be also efficient for the amination of 3-substituted benzofuranones, although with moderate results. A bifunctional role of the catalyst, acting as Brønsted base and hydrogen bond donor, is proposed according to the experimental results observed.
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Affiliation(s)
- Llorenç Benavent
- Departamento de Química Orgánica and Instituto de Síntesis Orgánica (ISO), Facultad de Ciencias, Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain.
| | - Alejandro Baeza
- Departamento de Química Orgánica and Instituto de Síntesis Orgánica (ISO), Facultad de Ciencias, Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain.
| | - Megan Freckleton
- Departamento de Química Orgánica and Instituto de Síntesis Orgánica (ISO), Facultad de Ciencias, Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain.
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47
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Chiral iminophosphoranes organocatalyzed asymmetric hydroxylation of 3-substituted oxindoles with oxaziridines. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.05.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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48
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Bondanza M, Pescitelli G, Mandoli A. Asymmetric organocatalytic α-amination of 2-oxindoles with bis(2,2,2-trichloroethyl)azo-dicarboxylate. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.05.063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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49
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Freckleton M, Baeza A, Benavent L, Chinchilla R. Asymmetric Organocatalytic Electrophilic Heterofunctionalization of Oxindoles. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800146] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Megan Freckleton
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Alejandro Baeza
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Llorenç Benavent
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Rafael Chinchilla
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
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50
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Sengoku T, Hayashi D, Takahashi M, Yoda H. Electrophilic Amide Allylation of 3-Heterosubstituted Oxindoles: A Route to Spirocyclic 2-Oxindoles Containing the α-Methylene-γ-butyrolactam Structure. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800084] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Tetsuya Sengoku
- Department of Applied Chemistry; Faculty of Engineering; Shizuoka University; 3-5-1 Johoku, Naka-ku 432-8561 Hamamatsu Japan
| | - Daichi Hayashi
- Department of Applied Chemistry; Faculty of Engineering; Shizuoka University; 3-5-1 Johoku, Naka-ku 432-8561 Hamamatsu Japan
| | - Masaki Takahashi
- Department of Applied Chemistry; Faculty of Engineering; Shizuoka University; 3-5-1 Johoku, Naka-ku 432-8561 Hamamatsu Japan
| | - Hidemi Yoda
- Department of Applied Chemistry; Faculty of Engineering; Shizuoka University; 3-5-1 Johoku, Naka-ku 432-8561 Hamamatsu Japan
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