1
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Li L, Li C, Zhang S, Wang X, Fu P, Wang Y. Catalytic Asymmetric Synthesis of 3,4'-Piperidinoyl Spirooxindoles via [3 + 3] Annulation of 3-Aminobenzofurans and Isatin-Derived Enals. J Org Chem 2024; 89:5170-5180. [PMID: 38545893 DOI: 10.1021/acs.joc.4c00046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
A chiral NHC-catalyzed [3 + 3] cycloaddition reaction of 3-aminobenzofurans with isatin-derived enals has been documented, furnishing 3,4'-piperidinoyl spirooxindoles bearing a quaternary stereocenter with good yields and excellent enantioselectivities. Further gram-scale preparation and synthetic transformation of the cycloadducts to δ-amino acid derivative demonstrated good practicality and applicability of this reaction.
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Affiliation(s)
- Lesong Li
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Congyang Li
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Shuting Zhang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Xuerui Wang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Peng Fu
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao 266237, China
| | - Yang Wang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao 266237, China
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2
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Wang Y, Huang X, Ji H, Zhou H, Gao H, Xu J. Bifunctional Thiourea-Catalyzed Enantioselective Aza-Friedel-Crafts Reaction of 3-Aminobenzofurans with Isatin-Derived Ketimines. J Org Chem 2023; 88:15486-15493. [PMID: 37867301 DOI: 10.1021/acs.joc.3c01741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
A quinine-derived thiourea-promoted enantioselective aza-Friedel-Crafts reaction of 3-aminobenzofurans with isatin-derived ketimines is developed, providing a variety of 3-benzofuran-3-amino-2-oxindoles bearing a quaternary stereocenter with good to excellent yields (72-95%) and moderate to excellent enantioselectivities (48-97%). The synthetic potential of this concise and efficient protocol is revealed by gram-scale preparation and further transformation of the adduct to an optically pure spirocyclic oxindole.
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Affiliation(s)
- Yangyang Wang
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Xiaoming Huang
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Haojie Ji
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, School of Chemistry and Chemical Engineering, 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
| | - Hongjie Gao
- Pharmaron (Ningbo) Technology Development Co., Ltd., No. 800 Bin-Hai fourth Road, Hangzhou Bay New Zone, Ningbo 315336, P. R. China
| | - Jianfeng Xu
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
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3
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Huang J, Wang W, Zhang L, Meng X. Recent advances in the synthesis of benzo[b]thiophene fused polycyclic derivatives: strategies and reactions. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.108003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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4
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Rao GA, Gurubrahamam R, Chen K. Base‐Catalysed [4+2]‐Annulation Between 2‐Nitrobenzofurans and N‐Alkoxyacrylamides: Synthesis of [3,2‐b]Benzofuropyridinones. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gunda Ananda Rao
- National Taiwan Normal University - Gongguan Campus Department of Chemistry TAIWAN
| | - Ramani Gurubrahamam
- Indian Institute of Technology Jammu Department of Chemistry jagti, nagrota bypass road 181221 Jammu INDIA
| | - Kwunmin Chen
- National Taiwan Normal University - Gongguan Campus Department of Chemistry INDIA
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5
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Niu C, Xie DH, Du DM. Isothiourea-catalysed enantioselective annulation of 2-aminobenzothiophenes with α,β-unsaturated anhydrides. Org Chem Front 2022. [DOI: 10.1039/d2qo01023b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An isothiourea-catalysed asymmetric Michael/lactamization cascade reaction of 2-aminobenzothiophenes and α,β-unsaturated anhydrides for the enantioselective synthesis of benzothienopiperidones with high stereoselectivities was developed.
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Affiliation(s)
- Cheng Niu
- Key Laboratory of Medical Molecule Science & Pharmaceutics Engineering (Ministry of Industry and Information Technology), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Beijing 100081, People's Republic of China
| | - Dong-Hua Xie
- Key Laboratory of Medical Molecule Science & Pharmaceutics Engineering (Ministry of Industry and Information Technology), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Beijing 100081, People's Republic of China
| | - Da-Ming Du
- Key Laboratory of Medical Molecule Science & Pharmaceutics Engineering (Ministry of Industry and Information Technology), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Beijing 100081, People's Republic of China
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6
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Wang X, Shao Y, Zhang S, Lu T, Du D. N-Heterocyclic Carbene-Catalyzed Formal [3+3] Annulation of Alkynyl Acylazoliums for the Synthesis of Benzofuro[3,2- b]pyridin-2-ones. J Org Chem 2021; 86:12336-12343. [PMID: 34328328 DOI: 10.1021/acs.joc.1c01230] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Through β-activation of alkynoic acid esters with N-heterocyclic carbene catalysis, a formal [3+3] annulation of alkynyl acylazoliums with indolin-3-ones has been developed for the rapid construction of structurally interesting benzofuro[3,2-b]pyridin-2-ones with potential bioactivities. This protocol provides a highly efficient and simple method for the synthesis of the target molecules under mild reaction conditions with a wide substrate scope and excellent chemoselectivity. The synthetic utility of this protocol was also demonstrated by the versatile late-stage modifications.
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Affiliation(s)
- Xiaoxue Wang
- State Key Laboratory of Natural Medicines, Department of Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Yuebo Shao
- State Key Laboratory of Natural Medicines, Department of Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Simiao Zhang
- State Key Laboratory of Natural Medicines, Department of Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Tao Lu
- State Key Laboratory of Natural Medicines, Department of Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Ding Du
- State Key Laboratory of Natural Medicines, Department of Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
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7
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Li Z, Zhou H, Xu J. Access to Chiral Polycyclic 1,4-Dihydropyridines via Organocatalytic Formal [3 + 3] Annulation of 2-(1-Alkynyl)-2-alken-1-ones with 3-Aminobenzofurans. Org Lett 2021; 23:6391-6395. [PMID: 34369778 DOI: 10.1021/acs.orglett.1c02211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A rational designed tandem reaction of 2-(1-alkynyl)-2-alken-1-ones with 3-aminobenzofurans enabled by a chiral bifunctional catalyst is described, affording biologically significant polycyclic 1,4-dihydropyridines in moderate to good yields (43-82%) with good to excellent enantioselectivities (83-99%). This formal [3 + 3] annulation reaction reveals good practicality when conducted on a gram scale, and the cycloadduct has the capability for further elaborations.
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Affiliation(s)
- Zhanhuan Li
- 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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8
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Ghosh A, Biju AT. Revealing the Similarities of α,β-Unsaturated Iminiums and Acylazoliums in Organocatalysis. Angew Chem Int Ed Engl 2021; 60:13712-13724. [PMID: 33205860 DOI: 10.1002/anie.202012581] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Indexed: 01/05/2023]
Abstract
The secondary amine-catalyzed reactions proceeding via α,β-unsaturated iminiums and the N-heterocyclic carbene (NHC)-catalyzed transformations taking place via α,β-unsaturated acylazoliums are the two widely used electrophilic intermediates in organocatalysis. Over the last two decades, these two intermediates are extensively utilized for the enantioselective construction of valuable molecules. Both intermediates are generated by the covalent binding of catalysts to the substrates leading to LUMO activation of α,β-unsaturated carbonyls. A variety of soft nucleophiles are known to add to the α,β-unsaturated iminiums and acylazoliums in a conjugate fashion, and in many cases, striking similarity in reactivity has been observed. Having said this, there are few cases where these intermediates exhibit difference in reactivity. This Minireview is aimed at highlighting the resemblances in reactivity between α,β-unsaturated iminiums and acylazoliums thereby shedding light on the unnoticed parallels of the two intermediates in organocatalysis.
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Affiliation(s)
- Arghya Ghosh
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Akkattu T Biju
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
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9
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Ghosh A, Biju AT. Revealing the Similarities of α,β‐Unsaturated Iminiums and Acylazoliums in Organocatalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012581] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Arghya Ghosh
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Akkattu T. Biju
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
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10
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He C, Zhou Y, Li Z, Xu J, Chen X. N-Heterocyclic carbene catalyzed asymmetric [3 + 3] cycloaddtion of β,β-disubstituted, α,β-unsaturated carboxylic esters with 3-aminobenzofurans. Org Chem Front 2021. [DOI: 10.1039/d0qo01489c] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
An NHC-catalyzed β-carbon functionalization reaction to afford enantioenriched benzofuran fused δ-lactams bearing an all-carbon quaternary stereocenter is documented.
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Affiliation(s)
- Chonglong He
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Yipeng Zhou
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Zhanhuan Li
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Jianfeng Xu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Xingkuan Chen
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- China
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11
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Huang Y, Li J, Li S, Ma J. Cobalt-Catalyzed Aerobic Oxidative Dearomatization of 2-Aryl Indoles and in situ [3+2] Annulation with Enamides. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Mao J, Zhang H, Ding XF, Luo X, Deng WP. Synergistic Catalysis for Asymmetric [3 + 2] Cycloadditions of 2-Indolylmethanols with α,β-Unsaturated Aldehydes. J Org Chem 2019; 84:11186-11194. [DOI: 10.1021/acs.joc.9b01234] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jia Mao
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
| | - Hao Zhang
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
| | - Xiang-Feng Ding
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
| | - Xiaoyan Luo
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
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13
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Ding XF, Yang WL, Mao J, Cao CX, Deng WP. Enantioselective Construction of Dihydropyrido[1,2-a]indoles via Organocatalytic Arylmethylation of 2-Enals with Inert Aryl Methane Nucleophiles. Org Lett 2019; 21:5514-5518. [DOI: 10.1021/acs.orglett.9b01837] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xiang-Feng Ding
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wu-Lin Yang
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jia Mao
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Cong-Xian Cao
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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14
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Zhang H, Li S, Kang Q, Du Y. Chiral-at-metal rhodium(iii) complex catalyzed enantioselective synthesis of C2-substituted benzofuran derivatives. Org Chem Front 2019. [DOI: 10.1039/c9qo01022j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An enantioselective C2-nucleophilic functionalization of 3-aminobenzofurans has been realized under catalysis of chiral rhodium(iii) complexes, affording a large array of C2-substituted benzofuran derivatives in high yields and enantioselectivities.
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Affiliation(s)
- Haoran Zhang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Shiwu Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Qiang Kang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Yu Du
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
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