1
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Gurram DP, Marri G, Jothimani N, Chen YR, Lin W. Diversity-oriented synthesis of chromone inden-1-one-fused cyclopentadienylides and C-acylated chromone adducts via allylic phosphorus ylides. Chem Commun (Camb) 2024. [PMID: 39171397 DOI: 10.1039/d4cc03210a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
An organophosphine-controlled diversity-oriented synthesis of chromone inden-1-one-fused cyclopentadienylides and C-acylated 2-((chromone-3-yl)methylene)-indandiones is reported. Key attributes of the methodology are the in situ generation of an allylic P-ylide and subsequent regio- and chemoselective intramolecular cyclization reactions that preferentially result in the aforementioned chromone adducts.
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Affiliation(s)
- Durga Prasad Gurram
- Department of Chemistry, National Taiwan Normal University 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China.
| | - Gangababu Marri
- Department of Chemistry, National Taiwan Normal University 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China.
| | - Naveen Jothimani
- Department of Chemistry, National Taiwan Normal University 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China.
| | - Yi-Ru Chen
- Department of Chemistry, National Taiwan Normal University 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China.
| | - Wenwei Lin
- Department of Chemistry, National Taiwan Normal University 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China.
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2
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Morales-Manrique C, Baquero EA, Guevara-Pulido J. Recent Advances in the Synthesis of 3,4-Dihydropyran-2-Ones Organocatalyzed by N-Heterocyclic Carbenes. Molecules 2023; 28:molecules28093743. [PMID: 37175154 PMCID: PMC10179788 DOI: 10.3390/molecules28093743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/21/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
In recent years, N-heterocyclic carbenes (NHC) have gained recognition as versatile molecules capable of acting as organocatalysts in various reactions, particularly through the activation of aldehydes via Breslow-type adducts. This organocatalytic activation has enabled the production of numerous 3,4-dihydropyran-2-ones and related derivatives. In this review, we provide an overview of the production of 3,4-dihydropyran-2-ones and derivatives via organocatalytic processes involving NHCs over the past eight years. These processes involve the use of a diverse range of substrates, catalysts, and reaction conditions, which can be classified into [4+2]-and [3+3]-type cycloadditions, primarily aimed at synthesizing this skeleton due to its biological activity and multiple stereocenters. These processes are scaled up to the gram scale, and the resulting products are often directed towards epimerization and functionalization to produce more complex molecules with potential applications in the biological field. Finally, we provide a perspective and the future directions of this topic in organic synthesis.
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Affiliation(s)
- Camilo Morales-Manrique
- Estado Sólido y Catálisis Ambiental (ESCA), Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Carrera 30 No. 45-03, Bogotá 111321, Colombia
- INQA, Química Farmacéutica, Facultad de Ciencias, Universidad El Bosque, Bogotá 11001, Colombia
| | - Edwin A Baquero
- Estado Sólido y Catálisis Ambiental (ESCA), Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Carrera 30 No. 45-03, Bogotá 111321, Colombia
| | - James Guevara-Pulido
- INQA, Química Farmacéutica, Facultad de Ciencias, Universidad El Bosque, Bogotá 11001, Colombia
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3
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Barløse CL, Faghtmann J, Bitsch RS, Gbubele JD, Jørgensen KA. Asymmetric Organocatalyzed Cascade Reactions─Merging the pseudo-Halogen and Halogen Effect with Dienamine Catalysis. Org Lett 2023; 25:1209-1213. [PMID: 36787642 DOI: 10.1021/acs.orglett.3c00220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
The combination of asymmetric organocatalysis with the (pseudo)-halogen effect enables the formation of chiral norcarane scaffolds in high yields and selectivities (up to 92% yield, >99% ee, and >95:5 d.r.). This was achieved by reacting (pseudo)-halogenated 3-vinyl chromones with in situ generated chiral dienamines in an inverse electron demand [4 + 2] cycloaddition followed by an intramolecular SN2 reaction. These scaffolds could easily undergo photoinduced rearrangements or lactonization to form intricate chiral ring structures.
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Affiliation(s)
| | - Jonas Faghtmann
- Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - René Slot Bitsch
- Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
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4
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Wang Z, Yang T, Liu D, Chen R, Wang N, Liu H, Li J, Wang K, Liu H. Catalyst-Controlled Selectivity Switch in Three-Component Reaction: An NHC-Catalyzed Strategy for the Synthesis of δ-Lactone-Fused Spirobenzofuran-3-ones. Molecules 2022; 27:molecules27185952. [PMID: 36144686 PMCID: PMC9503435 DOI: 10.3390/molecules27185952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/09/2022] [Accepted: 09/09/2022] [Indexed: 11/28/2022] Open
Abstract
An efficient, three-component reaction of aldehydes and benzofuran-3-ones was developed. This process provides a new approach for the preparation of synthetically and biologically important spirobenzofuran-3-one derivatives with moderate-to-good yields under mild conditions. A switch of intramolecular to intermolecular domino Michael–aldol–lactonization leading to differential product formation was achieved by different NHCs catalysis.
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Affiliation(s)
- Zhanyong Wang
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
| | - Ting Yang
- Nursing College, Xinxiang University, Xinxiang 453003, China
| | - Dongfang Liu
- Xinxiang Runyu Material Co., Ltd., Xinxiang 453003, China
| | - Rongxiang Chen
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
| | - Nan Wang
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
| | - Hong Liu
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
| | - Jiarong Li
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
| | - Kaikai Wang
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
- Correspondence: (K.W.); (H.L.)
| | - Hongxin Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
- Institute of New Materials & Industrial Technology, Wenzhou University, Wenzhou 325035, China
- Correspondence: (K.W.); (H.L.)
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5
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Liu B, Duan XY, Li J, Wu Y, Li Y, Qi J. N-Heterocyclic Carbene-Catalyzed [3 + 2] Annulation of 3,3'-Bisoxindoles with α-Bromoenals: Enantioselective Construction of Contiguous Quaternary Stereocenters. Org Lett 2022; 24:5929-5934. [PMID: 35947030 DOI: 10.1021/acs.orglett.2c02180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An NHC-catalyzed enantio- and diastereoselective [3 + 2] annulation of α-bromoenals with bisoxindoles is developed, affording efficient access to various spirocyclic bisoxindole alkaloids. This protocol tolerates a broad substrates scope, with various spirocyclic bisoxindoles obtained in generally excellent enantioselectivities. More importantly, two contiguous sterically congested all-carbon quaternary stereocenters are successfully created during this process.
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Affiliation(s)
- Binghao Liu
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China
| | - Xiao-Yong Duan
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China.,Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, Baoding 071002, People's Republic of China
| | - Jiahan Li
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China
| | - Yatong Wu
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China
| | - Yanting Li
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China
| | - Jing Qi
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China.,Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, Baoding 071002, People's Republic of China
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6
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NHC Catalyzed β-Carbon functionalization of carboxylic esters towards formation of δ-Lactams: A mechanistic study. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Hussain Y, Tamanna, Sharma M, Kumar A, Chauhan P. Recent development in asymmetric organocatalytic domino reactions involving 1,6-addition as a key step. Org Chem Front 2022. [DOI: 10.1039/d1qo01561c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This article highlights the significant development in stereoselective domino reactions involving 1,6-addition as a crucial step.
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Affiliation(s)
- Yaseen Hussain
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221, J&K, India
| | - Tamanna
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221, J&K, India
| | - Manisha Sharma
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221, J&K, India
| | - Akshay Kumar
- Department of Chemistry, DAV University, Pathankot – Jalandhar Road, Jalandhar 144001, Punjab, India
| | - Pankaj Chauhan
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221, J&K, India
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8
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Zhang B, Yang H, Wang T, Han X, Sun H, Fang L, Zhai H, Cheng B. Synthesis of 5 H-Chromeno[2,3- d]pyrimidin-5-one Derivatives via Microwave-Promoted Multicomponent Reaction. J Org Chem 2021; 86:18304-18311. [PMID: 34813338 DOI: 10.1021/acs.joc.1c02434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A microwave-promoted multicomponent reaction of 3-formylchromones, amines, and paraformaldehyde was achieved under catalyst-free and solvent-free conditions, delivering 5H-chromeno[2,3-d]pyrimidin-5-one derivatives in good to excellent yields via an unexpected annulation pathway, which further expanded the synthetic application of paraformaldehyde as a C1 building block.
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Affiliation(s)
- Biwei Zhang
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Hongjian Yang
- State Key Laboratory of Chemical Oncogenomics, Shenzhen Engineering Laboratory of Nano Drug Slow-Release, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Taimin Wang
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Xuanzhen Han
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Haiyan Sun
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Lijing Fang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518055, China
| | - Hongbin Zhai
- State Key Laboratory of Chemical Oncogenomics, Shenzhen Engineering Laboratory of Nano Drug Slow-Release, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Bin Cheng
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
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9
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Pandey CB, Mishra BK, Azaz T, Mourya H, Ram B, Tiwari B. A General Method for α-Oxyacylation of Vinyl Ketones Using Koser's Reagent. J Org Chem 2021; 86:17318-17327. [PMID: 34783551 DOI: 10.1021/acs.joc.1c01517] [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
A direct general method for the preparation of α-oxyacylated vinyl ketones using Koser's hypervalent iodine reagent is reported. A variety of acyloxy groups from long-chain aliphatic, aromatic, α,β-unsaturated carboxylic acids have been installed efficiently for the first time. The oxyacylated adducts were used for the preparation of densely functionalized chiral δ-lactones and cyclopentenes using carbene organocatalysis.
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Affiliation(s)
- Chandra Bhan Pandey
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Bal Krishna Mishra
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Tazeen Azaz
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Hemlata Mourya
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Bali Ram
- Department of Chemistry Faculty of Science, Banaras Hindu University, Varanasi 221005, India
| | - Bhoopendra Tiwari
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
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10
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Duan J, Xiong Z, Zhou Y, Yao W, Li X, Zhang M, Wang Z. Access to Chiral Chromenones through Organocatalyzed Mannich/Annulation Sequence. Org Lett 2021; 23:8007-8012. [PMID: 34606286 DOI: 10.1021/acs.orglett.1c03010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein we report an efficient and practical method to access chiral chromenones bearing one α-amino stereogenic center in the β position of the carbonyl group. The quinine-derived squaramide could efficiently promote Mannich/cycloketalization/dehydration tandem reactions between 1-(2-hydroxyaryl)-1,3-diketones and functionalized imines generated in situ, providing a wide range of chiral chromenones with propargylamine or α-amino ester moieties with good results (54 examples, up to 98% ee).
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Affiliation(s)
- Jingxiang Duan
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P. R. China
| | - Zongli Xiong
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P. R. China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Weijun Yao
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Xiaoyi Li
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P. R. China
| | - Min Zhang
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P. R. China
| | - Zhen Wang
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P. R. China
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11
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Wang Z, Shen F, Yang T, Zhang J, Chen R, Wang K, Liu H. Carbene‐Catalyzed Three‐Component Cascade Reaction of Benzofuran‐2‐ones and Enals: Construction of Spirobenzofuranone‐δ‐lactones. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Zhan‐Yong Wang
- School of Pharmacy Xinxiang University Xinxiang 453003 P. R. China
| | - Fumin Shen
- School of Pharmacy Xinxiang University Xinxiang 453003 P. R. China
| | - Ting Yang
- Nursing College Xinxiang University Xinxiang 453003 P. R. China
| | - Jun‐Kai Zhang
- School of Pharmacy Xinxiang University Xinxiang 453003 P. R. China
| | - Rongxiang Chen
- School of Pharmacy Xinxiang University Xinxiang 453003 P. R. China
| | - Kai‐Kai Wang
- School of Pharmacy Xinxiang University Xinxiang 453003 P. R. China
- Key Laboratory of Nano-carbon Modified Film Technology Engineering Xinxiang 453003 P. R. China
| | - Hongxin Liu
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 P. R. China
- Institute of New Materials & Industrial Technology Wenzhou University Wenzhou 325035 P. R. China
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12
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Yan J, Zheng X, Zheng Y, Zhan R, Huang H. Asymmetric Michael reaction of 3-homoacyl coumarins with chromone-fused dienes toward enantioenriched coumarin chromone skeletons. Org Biomol Chem 2021; 19:8102-8107. [PMID: 34494052 DOI: 10.1039/d1ob01200b] [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
Asymmetric Michael reaction of 3-homoacyl coumarins and chromone-fused dienes was developed by employing a chiral squaramide, and a series of coumarin chromone skeletons were furnished in moderate to high yields (up to 99%) and stereoselectivities (up to 98 : 2 dr, 99% ee).
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Affiliation(s)
- Juzhang Yan
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China.
| | - Xiurong Zheng
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China.
| | - Yangqing Zheng
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China.
| | - Ruoting Zhan
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China.
| | - Huicai Huang
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China.
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13
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Sosnovskikh VY. Synthesis and Reactivity of Electron-Deficient 3-Vinylchromones. SYNOPEN 2021. [DOI: 10.1055/a-1589-9556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
AbstractThe reported methods and data for the synthesis and reactivity of electron-deficient 3-vinylchromones containing electron-withdrawing groups at the exo-cyclic double bond are summarized and systematized for the first time. The main methods for obtaining these compounds are Knoevenagel condensation, Wittig reaction, and palladium-catalyzed cross-couplings. The most important chemical properties are transformations under the action of mono- and dinucleophiles, ambiphilic cyclizations, and cycloaddition reactions. The cross-conjugated and polyelectrophilic dienone system in 3-vinylchromones provides their high reactivity and makes these compounds valuable building blocks for the preparation of more complex heterocyclic systems. Chemical transformations of 3-vinylchromones usually begin with an attack of the C-2 atom and are accompanied by the opening of the pyrone ring followed by recyclization, in which the carbonyl group of chromone, an exo-double bond or a substituent on it can take part. The mechanisms of the reactions are discussed, the conditions for their implementation are described, and the yields of the resulting products are given. This review focuses on an analysis and generalization of the knowledge that has accumulated on the chemistry of electron-deficient 3-vinylchromones, mostly over the past 15 years.1 Introduction2 Synthesis of 3-Vinylchromones3 Reactions with Mononucleophiles4 Reactions with Dinucleophiles5 Ambiphilic Cyclization6 Cycloaddition Reactions7 Other Reactions8 Conclusion
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14
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Zhao C, Blaszczyk SA, Wang J. Asymmetric reactions of N-heterocyclic carbene (NHC)-based chiral acyl azoliums and azolium enolates. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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15
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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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16
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Zhang M, Gong Y, Zhou W, Zhou Y, Liu XL. Recent advances of chromone-based reactants in the catalytic asymmetric domino annulation reaction. Org Chem Front 2021. [DOI: 10.1039/d1qo00269d] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chiral polycyclic chromanones are important heterocyclic frameworks that constitute the core structures of many natural products and bioactive molecules.
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Affiliation(s)
- Min Zhang
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Yi Gong
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Wei Zhou
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Ying Zhou
- College of Pharmaceutical Sciences
- Guizhou University of Chinese Medicine
- Guiyang
- P. R. China
| | - Xiong-Li Liu
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
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17
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Gao J, Feng J, Du D. Generation of azolium dienolates as versatile nucleophilic synthons via N-heterocyclic carbene catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo01127h] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The recent advances in N-heterocyclic carbene (NHC)-catalyzed generation of azolium dienolates from different precursors and their synthetic applications for the construction of various valuable molecules are summarized comprehensively in this review.
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Affiliation(s)
- Jian Gao
- Department of Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, P. R. China
| | - Jie Feng
- Department of Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, P. R. China
| | - Ding Du
- Department of Chemistry, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, P. R. China
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18
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He XW, Zhou W, Zhang M, Tian MY, Wang HJ, Tian YP, Liu XL. Transition-metal-free cascade benzannulations for synthesizing 2-hydroxybenzophenones. Org Biomol Chem 2020; 18:9039-9043. [PMID: 33141141 DOI: 10.1039/d0ob01894e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
A set of cascade benzannulations of readily accessible chromone-3-carboxaldehydes and γ-nitroaldehydes for synthesizing biologically relevant 2-hydroxybenzophenones has been developed. The cascade was found to provide a transition-metal-free strategy for synthesizing 2-hydroxybenzophenones in acceptable yields (up to 57%).
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Affiliation(s)
- Xue-Wen He
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Wei Zhou
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Min Zhang
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Min-Yi Tian
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Hui-Juan Wang
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - You-Ping Tian
- College of Pharmaceutical Sciences, Guizhou University of Chinese Medicine, Guiyang, Guizhou 550025, P. R. China
| | - Xiong-Li Liu
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
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19
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Lu M, Wang X, Xiong Z, Duan J, Ren W, Yao W, Xia Y, Wang Z. Enantioselective Synthesis of Chromanones through Organocatalytic Tandem Reactions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mengxue Lu
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research Chongqing University Chongqing 401331 People's Republic of China
| | - Xin Wang
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research Chongqing University Chongqing 401331 People's Republic of China
| | - Zongli Xiong
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research Chongqing University Chongqing 401331 People's Republic of China
| | - Jingxiang Duan
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research Chongqing University Chongqing 401331 People's Republic of China
| | - Wen Ren
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research Chongqing University Chongqing 401331 People's Republic of China
| | - Weijun Yao
- Department of Chemistry Zhejiang Sci-Tech University Hangzhou 310018 People's Republic of China
| | - Yi Xia
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research Chongqing University Chongqing 401331 People's Republic of China
| | - Zhen Wang
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research Chongqing University Chongqing 401331 People's Republic of China
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20
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Liu Q, Wang ZX, Chen XY. Highly enantioselective 1,6-addition of dienolates to coumarins and chromones through N-heterocyclic carbene catalysis. Org Chem Front 2020. [DOI: 10.1039/d0qo00963f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An efficient protocol employing NHC-organocatalysis in asymmetric γ,δ-difunctionalization of cyanocoumarins and nitrochromones via a 1,6-addition of dienolates is established.
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Affiliation(s)
- Qiang Liu
- School of Chemical Sciences
- University of the Chinese Academy of Sciences
- Beijing
- China
| | - Zhi-Xiang Wang
- School of Chemical Sciences
- University of the Chinese Academy of Sciences
- Beijing
- China
| | - Xiang-Yu Chen
- School of Chemical Sciences
- University of the Chinese Academy of Sciences
- Beijing
- China
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