1
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Liu RH, Chai GL, Wang X, Deng HY, Chang J. Chiral-Boron-Complex-Catalyzed Asymmetric [3 + 2] Cycloaddition of β-Trifluoromethyl α,β-Unsaturated Ketones with N,N'-Cyclic Azomethine Imines. J Org Chem 2023; 88:16566-16580. [PMID: 37967281 DOI: 10.1021/acs.joc.3c02106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
The (R)-3,3'-(3,5-(CF3)2-C6H3)2-BINOL-boron-complex-catalyzed asymmetric 1,3-dipolar cycloaddition of β-trifluoromethyl α,β-unsaturated ketone with N,N'-cyclic azomethine imines was developed to afford N,N'-bicyclic pyrazolidine derivatives bearing a stereogenic carbon center containing CF3 motifs in high yields with excellent diastereo- and enantioselectivities (up to >20:1 dr, and >99% ee). This catalytic system features mild reaction conditions, high efficiency, and a broad substrate scope.
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Affiliation(s)
- Rui-Hao Liu
- Pingyuan Laboratory, State Key Laboratory of Antiviral Drugs, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Guo-Li Chai
- Pingyuan Laboratory, State Key Laboratory of Antiviral Drugs, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xiao Wang
- Pingyuan Laboratory, State Key Laboratory of Antiviral Drugs, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Hong-Yu Deng
- Pingyuan Laboratory, State Key Laboratory of Antiviral Drugs, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Junbiao Chang
- Pingyuan Laboratory, State Key Laboratory of Antiviral Drugs, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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2
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Zheng J, Yang L, Dai X, Chen L, Tang L, Zhou Y, Li WDZ. Diastereodivergent Synthesis of Pentacyclic Spiroindolines via a Magnesium(II)-Catalyzed Cascade Reaction of N,N'-Cyclic Azomethine Imines with Indolyl-Substituted Isocyanides. Org Lett 2023. [PMID: 37196242 DOI: 10.1021/acs.orglett.3c01085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Magnesium(II)-catalyzed cascade reactions of N,N'-cyclic azomethine imines with indolyl-substituted isocyanides are reported herein. The method exhibited a high functional group tolerance and broad substrate scope. A series of anti-pentacyclic spiroindolines containing N,N'-fused heterocycle skeletons were obtained in up to 82% yield with 8.5:1 dr under mild reaction conditions. Intriguingly, a sequential HOAc-mediated protonation results in a diastereoenriched epimerization, which gives rise to the syn-pentacyclic spiroindolines as the sole isomers.
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Affiliation(s)
- Jianfeng Zheng
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, China
| | - Lin Yang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xin Dai
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Lvli Chen
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, China
| | - Luhao Tang
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry &Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Wei-Dong Z Li
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, China
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3
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Chai GL, Yao EZ, Liu RH, Chang J. Chiral-Boron-Complex-Catalyzed Asymmetric [3 + 2] Cycloaddition of 2'-Hydroxychalcones with N, N'-Cyclic Azomethine Imines. Org Lett 2022; 24:6449-6454. [PMID: 36040361 DOI: 10.1021/acs.orglett.2c02597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the (R)-3,3'-I2-BINOL-boron-complex-catalyzed asymmetric 1,3-dipolar cycloaddition of 2'-hydroxychalcones with N,N'-cyclic azomethine imines, providing the corresponding N,N'-bicyclic pyrazolidine derivatives with three contiguous tertiary stereocenters in high yields with excellent diastereo- and enantioselectivities (up to >99:1 diastereomeric ratio and >99% enantiomeric excess). This catalytic system exhibits advantages of mild reaction conditions, high efficiency, and broad substrate scopes.
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Affiliation(s)
- Guo-Li Chai
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
| | - En-Ze Yao
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
| | - Rui-Hao Liu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
| | - Junbiao Chang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
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4
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Zhou Y, Zhou H, Xu J. N-Heterocyclic Carbene-Catalyzed Stereoselective [3 + 2] Cycloaddition of N, N'-Cyclic Azomethine Imines with Aryl Acetaldehydes. J Org Chem 2022; 87:10476-10484. [PMID: 35861147 DOI: 10.1021/acs.joc.2c01064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A highly stereoselective [3 + 2] cycloaddition reaction of N,N'-cyclic azomethine imines with aryl acetaldehydes enabled by a chiral N-heterocyclic carbene catalyst is accomplished, giving efficient access to a plethora of enantioenriched N,N'-bicyclic pyrazolidinones featuring aromatic substituents at the C2 position. The current strategy can be directly conducted on a gram scale, and the product could be further reduced to bicyclic pyrazolidine without loss of enantiopurity.
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Affiliation(s)
- Yipeng Zhou
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Hongwei Zhou
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, P.R. China
| | - Jianfeng Xu
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
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5
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Mechanistic study of [4 + 3] cyclization of N,N′-cyclic azomethine imines with isatoic anhydrides under Brønsted acid catalysis. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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6
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Konishi K, Yasui M, Miki K, Takeda N, Ueda M. Construction of pyrazolodiazepines using AuI, a dual functional gold catalyst. Org Biomol Chem 2022; 20:3382-3386. [PMID: 35357388 DOI: 10.1039/d2ob00199c] [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
N,N'-5,7-Fused compounds are important molecules exhibiting medicinal potential. Herein, we report a practical and robust method for synthesising pyrazolodiazepines from N-piperidinyl alkynylhydrazides using a AuI catalyst. The broad substrate scope of alkynylhydrazides and synthetic application of pyrazolodiazepines are demonstrated. In addition, control experiments provide detailed information on the reaction mechanism, in which AuI promotes both the sequential intramolecular nucleophilic addition and the double nucleophilic substitution reaction as a π-acidic and nucleophilic dual functional catalyst.
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Affiliation(s)
- Keiji Konishi
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan.
| | - Motohiro Yasui
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan.
| | - Kanae Miki
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan.
| | - Norihiko Takeda
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan.
| | - Masafumi Ueda
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan.
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7
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Rao MS, Hussain S. DABCO-mediated decarboxylative cyclization of isatoic anhydride with aroyl/heteroaroyl/alkoylacetonitriles under microwave conditions: Strategy for the synthesis of substituted 4-quinolones. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Zhang Z, Han H, Wang L, Bu Z, Xie Y, Wang Q. Construction of bridged polycycles through dearomatization strategies. Org Biomol Chem 2021; 19:3960-3982. [PMID: 33978039 DOI: 10.1039/d1ob00096a] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Bridged polycycles are privileged molecular skeletons with wide occurrence in bioactive natural products and pharmaceuticals. Therefore, they have been the pursing target molecules of numerous chemists. The rapid and convenient generation of sp3-rich complex three-dimensional molecular skeletons from simple and easily available aromatics has made dearomatization a highly valuable synthetic tool for the construction of rigid and challenging bridged rings. This review summarizes the-state-of-the-art advances of dearomatization strategies in the application of bridged ring formation, discusses their advantages and limitations and the in-depth mechanism, and highlights their synthetic value in the total synthesis of natural products. We wish this review will provide an important reference for medicinal and synthetic chemists and will inspire further development in this intriguing research area.
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Affiliation(s)
- Ziying Zhang
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| | - Huabin Han
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| | - Lele Wang
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| | - Zhanwei Bu
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| | - Yan Xie
- College of Chemistry and Materials Engineering, Quzhou University, Quzhou 324000, China.
| | - Qilin Wang
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
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9
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Guerrero T, Juárez‐Cerrillo SF, Matus MH, Durand‐Niconoff JS. Study of Local Reactivity of Isatoic Anhydride Applying Quantum Molecular Similarity. ChemistrySelect 2021. [DOI: 10.1002/slct.202004302] [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)
- Tomás Guerrero
- Instituto de Ciencias Básicas Universidad Veracruzana Dr. Luis Castelazo Ayala S/N Col. Industrial Ánimas Xalapa, Ver. México 91190
| | - Sergio F. Juárez‐Cerrillo
- Facultad de Estadística e Informática Universidad Veracruzana Av. Xalapa, esq. Manuel Ávila Camacho S/N Xalapa, Ver. México 91020
| | - Myrna H. Matus
- Instituto de Química Aplicada Universidad Veracruzana Dr. Luis Castelazo Ayala S/N, Col. Industrial Ánimas, A.P. 575 Xalapa, Ver. México 91190
| | - José Sergio Durand‐Niconoff
- Instituto de Ciencias Básicas Universidad Veracruzana Dr. Luis Castelazo Ayala S/N Col. Industrial Ánimas Xalapa, Ver. México 91190
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10
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Wu HH, Fan XZ, Tang Z, Zhang H, Cai LY, Bi XF, Zhao HW. Palladium-Catalyzed Formal (5 + 6) Cycloaddition of Vinylethylene Carbonates with Isatoic Anhydrides for the Synthesis of Medium-Sized N, O-Containing Heterocycles. Org Lett 2021; 23:2802-2806. [PMID: 33739841 DOI: 10.1021/acs.orglett.1c00729] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Under the reaction conditions of Pd(PPh3)4 (2.5 mol %) and PPh3 (10 mol %) in EtOAc at 60 °C, the formal (5 + 6) cycloaddition of vinylethylene carbonates with isatoic anhydrides proceeded smoothly and furnished medium-sized N,O-containing heterocycles in reasonable chemical yields. The chemical structures of the title products were clearly identified by X-ray diffraction analysis.
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Affiliation(s)
- Hui-Hui Wu
- College of Life Science and Bioengineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, P. R. China
| | - Xiao-Zu Fan
- College of Life Science and Bioengineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, P. R. China
| | - Zhe Tang
- College of Life Science and Bioengineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, P. R. China
| | - Heng Zhang
- College of Life Science and Bioengineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, P. R. China
| | - Lu-Yu Cai
- College of Life Science and Bioengineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, P. R. China
| | - Xiao-Fan Bi
- College of Life Science and Bioengineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, P. R. China
| | - Hong-Wu Zhao
- College of Life Science and Bioengineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, P. R. China
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11
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Gao Y, Zhang X, Zhang X, Miao Z. Catalytic Asymmetric Construction of a 1,2,4-Benzotriazepine Skeleton via Diastereo- and Enantioselective Decarboxylative [4 + 3] Cyclization. Org Lett 2021; 23:2415-2420. [PMID: 33709719 DOI: 10.1021/acs.orglett.1c00073] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We have developed a protocol for palladium-catalyzed decarboxylative [4 + 3] cycloaddition reactions between 4-vinyl benzoxazinanones and azomethine imines to generate moderate to good yields of structurally diverse 1,2,4-benzotriazepines bearing two stereogenic centers with good to excellent stereoselectivities. This protocol not only addresses the challenge of asymmetrically constructing compounds with a 1,2,4-benzotriazepine skeleton but also demonstrates the utility of decarboxylative cycloadditions for the synthesis of enantioenriched polycyclic compounds.
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Affiliation(s)
- Yanfeng Gao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Xuange Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Xiyuan Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Zhiwei Miao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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12
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Synthesis of pyrazolotetrazepin-7-ones from 1,3,5-triazinanes with N,N′-cyclic azomethine imines via a formal (5 + 2) pathway. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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Lam H, Lautens M, Abel-Snape X, Köllen MF. Recent Advances in Transition-Metal-Free (4+3)-Annulations. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1706023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Abstract(4+3)-Annulations are incredibly versatile reactions which combine a 4-atom synthon and a 3-atom synthon to form both 7-membered carbocycles as well as heterocycles. We have previously reviewed transition-metal-catalyzed (4+3)-annulations. In this review, we will cover examples involving bases, NHCs, phosphines, Lewis and Brønsted acids as well as some rare examples of boronic acid catalysis and photocatalysis. In analogy to our previous review, we exclude annulations involving cyclic dienes like furan, pyrrole, cyclohexadiene or cyclopentadiene, as Chiu, Harmata, Fernándes and others have recently published reviews encompassing such substrates. We will however discuss the recent additions (2010–2020) to the literature on (4+3)-annulations involving other types of 4-atom-synthons.1 Introduction2 Bases3 Annulations Using N-Heterocyclic Carbenes3.1 N-Heterocyclic Carbenes (NHCs)3.2 N-Heterocyclic Carbenes and Base Dual-Activation4 Phosphines5 Acids5.1 Lewis Acids5.2 Brønsted Acids6 Boronic Acid Catalysis and Photocatalysis7 Conclusion
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Affiliation(s)
- Heather Lam
- Davenport Research Laboratories, Department of Chemistry, University of Toronto
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto
| | - Xavier Abel-Snape
- Davenport Research Laboratories, Department of Chemistry, University of Toronto
| | - Martin F. Köllen
- Ludwig-Maximilians-Universität München, Department Chemie und Biochemie
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14
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Deepthi A, Thomas NV, Sruthi SL. An overview of the reactions involving azomethine imines over half a decade. NEW J CHEM 2021. [DOI: 10.1039/d1nj01090e] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Azomethine imines constitute a versatile class of 1,3-dipoles which was used extensively for biologically relevant N-heterocycle synthesis – a five-year recap.
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Affiliation(s)
- Ani Deepthi
- Department of Chemistry
- University of Kerala
- Thiruvananthapuram 695581
- India
| | - Noble V. Thomas
- Department of Chemistry
- University of Kerala
- Thiruvananthapuram 695581
- India
| | - S. L. Sruthi
- Department of Chemistry
- University of Kerala
- Thiruvananthapuram 695581
- India
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15
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Fang QY, Jin HS, Wang RB, Zhao LM. A Role for Isatin Azomethine Imines as a Dipolarophile in Cycloaddition Reactions. Org Lett 2020; 22:7358-7362. [PMID: 32875804 DOI: 10.1021/acs.orglett.0c02705] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An unusual [2 + 3] cycloaddition of isatin azomethine imines (AIs) and in situ generated azaoxyallyl cations has been developed. It is the first example where AIs serve as the [C,O] 2-atom synthon in organic synthesis. This work not only reveals a new role of isatin AIs in cycloaddition reaction but also provides an efficient access to unprecedented spiroheterocycle compounds.
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Affiliation(s)
- Qing-Yun Fang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Hai-Shan Jin
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Ru-Bing Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China.,State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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16
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Chen Q, Pan Y, Yue T, Yang W, Liu H, Zheng J. [4 + 2]-Annulation of Prop-2-ynylsulfonium Salts and Isatoic Anhydrides: Access to 3-Methylthio-4-quinolones. Org Lett 2020; 22:6096-6100. [PMID: 32677437 DOI: 10.1021/acs.orglett.0c02173] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An unparalleled [4 + 2]-annulation of prop-2-ynylsulfonium salts with isatoic anhydrides was developed, affording a series of 4-quinolones with a alkylthio group in medium to good yields under mild conditions. In this reaction type, the prop-2-ynylsulfonium salt serves as a C2 synthon and sulfide does not act as a leaving group, providing facile access to organosulfur compounds. The resulting quinolone products could be further transformed to a diverse range of synthetically useful compounds.
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Affiliation(s)
- Qinfang Chen
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XueFu Road, Nangchang 330031, China
| | - Yihao Pan
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XueFu Road, Nangchang 330031, China
| | - Tingting Yue
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XueFu Road, Nangchang 330031, China
| | - Weiran Yang
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XueFu Road, Nangchang 330031, China
| | - Hua Liu
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Wanli Distract, Nanchang 330004, China
| | - Jing Zheng
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XueFu Road, Nangchang 330031, China
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17
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Zhang Z, Qin Z, Chang W, Li J, Fan R, Wu X, Guo R, Xie X, Zhou L. Nickel‐Catalyzed Decarboxylative Cyclization of Isatoic Anhydrides with Carbodiimides: Synthesis of 2,3‐Dihydroquinazolin‐4(1
H
)‐ones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000047] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhen Zhang
- College of Chemistry and Chemical EngineeringYantai University Yantai 264005, P. R. of People's Republic of China
| | - Ziqiang Qin
- College of Chemistry and Chemical EngineeringYantai University Yantai 264005, P. R. of People's Republic of China
| | - Wenxu Chang
- Department of Applied ChemistryChina Agricultural University Beijing 100193 People's Republic of China
| | - Jiazhu Li
- College of Chemistry and Chemical EngineeringYantai University Yantai 264005, P. R. of People's Republic of China
| | - Ruoqian Fan
- College of Chemistry and Chemical EngineeringYantai University Yantai 264005, P. R. of People's Republic of China
| | - Xing Wu
- College of Chemistry and Chemical EngineeringYantai University Yantai 264005, P. R. of People's Republic of China
| | - Rongrong Guo
- College of Chemistry and Chemical EngineeringYantai University Yantai 264005, P. R. of People's Republic of China
| | - Xiangqi Xie
- College of Chemistry and Chemical EngineeringYantai University Yantai 264005, P. R. of People's Republic of China
| | - Lanxin Zhou
- College of Chemistry and Chemical EngineeringYantai University Yantai 264005, P. R. of People's Republic of China
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18
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Kim E, Lee CY, Kim S. HFIP‐Mediated Decarboxylative [4+3]‐Annulation of Azaoxyallyl Cations with Isatoic Anhydride. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000439] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Eunjin Kim
- Department of ChemistryKyonggi University 154-42, Gwanggyosan-ro, Yeongtong-gu Suwon 16227 Republic of Korea
| | - Chang Yoon Lee
- Department of ChemistryKyonggi University 154-42, Gwanggyosan-ro, Yeongtong-gu Suwon 16227 Republic of Korea
| | - Sung‐Gon Kim
- Department of ChemistryKyonggi University 154-42, Gwanggyosan-ro, Yeongtong-gu Suwon 16227 Republic of Korea
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19
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Li T, Yang Z, Song Z, Chauvin R, Cui X. Rhodium(III)-Catalyzed [4+3] Annulation of N-Aryl-pyrazolidinones and Propargylic Acetates: Access to Benzo[c][1,2]diazepines. Org Lett 2020; 22:4078-4082. [DOI: 10.1021/acs.orglett.0c01139] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tingfang Li
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Zi Yang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Zhenyu Song
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Remi Chauvin
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
- LCC-CNRS, Université de Toulouse, UPS, 205 route de Narbonne, 31077 Toulouse, France
| | - Xiuling Cui
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
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20
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Wang LL, Han HB, Cui ZH, Zhao JW, Bu ZW, Wang QL. Chalcone-Based Pyridinium Salts and Their Diastereoselective Dearomatization To Access Bibridged Benzoazepines. Org Lett 2020; 22:873-878. [PMID: 31916771 DOI: 10.1021/acs.orglett.9b04398] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New chalcone-based pyridinium salts have been successfully exploited, which could smoothly participate in the highly diastereoselective dearomatization with binucleophilic enaminones by taking advantage of their multiple reactive sites to construct bibridged benzoazepines in up to 89% yields. The key to the success was the skillful and unprecedented C-3 functionalization of the new pyridinium salts. This work not only provides a kind of novel pyridinium salt synthon but also achieves the first C-3 functionalization of pyridinium salts to construct complex and challenging bibridged benzoazepines with high synthetic efficiency.
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Affiliation(s)
- Le-Le Wang
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China
| | - Hua-Bin Han
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China
| | - Zhao-Hui Cui
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China
| | - Jun-Wei Zhao
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China
| | - Zhan-Wei Bu
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China
| | - Qi-Lin Wang
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China
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21
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22
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Yue G, Dou Z, Zhou Z, Zhang L, Feng J, Chen H, Yin Z, Song X, Liang X, Wang X, Rao H, Lu C. Rapid abnormal [3+2]-cycloaddition of isatin N,N′-cyclic azomethine imine 1,3-dipoles with chalcones. NEW J CHEM 2020. [DOI: 10.1039/d0nj00887g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
More than 35 new compounds were prepared rapidly in moderate to excellent yields with high diastereoselectivities by K2CO3-promoted abnormal 1,3-diploar cycloaddition of isatin N, N′-cyclic azomethine imines with chalcones.
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23
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Zuo L, Liu T, Chang X, Guo W. An Update of Transition Metal-Catalyzed Decarboxylative Transformations of Cyclic Carbonates and Carbamates. Molecules 2019; 24:E3930. [PMID: 31683557 PMCID: PMC6864628 DOI: 10.3390/molecules24213930] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/24/2019] [Accepted: 10/25/2019] [Indexed: 01/06/2023] Open
Abstract
Functionalized cyclic organic carbonates and carbamates are frequently used in a number of transition metal-catalyzed decarboxylative reactions for the construction of interesting molecules. These decarboxylative transformations have attracted more and more research attention in recent years mainly due to their advantages of less waste generation and versatile reactivities. On the basis of previous reviews on this hot topic, the present review will focus on the development of transition metal-catalyzed decarboxylative transformations of functionalized cyclic carbonates and carbamates in the last two years.
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Affiliation(s)
- Linhong Zuo
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an 710045, China.
| | - Teng Liu
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an 710045, China.
| | - Xiaowei Chang
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an 710045, China.
| | - Wusheng Guo
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an 710045, China.
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24
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An XD, Duan K, Li XJ, Yang JM, Lu YN, Liu Q, Xiao J. Synthesis of Tetrahydro[1,3,4]triazepines via Redox-Neutral α-C(sp3)–H Amination of Cyclic Amines. J Org Chem 2019; 84:11839-11847. [DOI: 10.1021/acs.joc.9b01703] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Xian-Jiang Li
- Shandong Kangqiao Biotechnology Co. Ltd., Binzhou 256500, China
| | | | - Yong-Na Lu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Qing Liu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
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25
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[4 + 3]-Cycloaddition of aza-o-quinone methides and azomethine imines to make 1,2,4-triazepines. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.05.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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