51
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Kwon Y, Choi S, Jang HS, Kim SG. Rapid Access to Hindered α-Amino Acid Derivatives and Benzodiazepin-3-ones from Aza-Oxyallyl Cations. Org Lett 2020; 22:1420-1425. [DOI: 10.1021/acs.orglett.0c00023] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- YongIl Kwon
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42, Gwanggyosan-ro Yeongtong-gu, Suwon 16227, Republic of Korea
| | - Sunyoung Choi
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42, Gwanggyosan-ro Yeongtong-gu, Suwon 16227, Republic of Korea
| | - Hyun Sun Jang
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42, Gwanggyosan-ro Yeongtong-gu, Suwon 16227, Republic of Korea
| | - Sung-Gon Kim
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42, Gwanggyosan-ro Yeongtong-gu, Suwon 16227, Republic of Korea
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52
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Fang QY, Zhao LM. A [4+3] annulation of benzofuran-derived azadienes and α-bromohydroxamates for the synthesis of benzofuran-fused 1,4-diazepinones. Chem Commun (Camb) 2020; 56:14079-14082. [DOI: 10.1039/d0cc06061e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Cs2CO3-mediated formal [4+3] cycloaddition involving benzofuran-derived azadienes (BDAs) and α-bromohydroxamates to afford benzofuran-fused 1,4-diazepinones is established.
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Affiliation(s)
- Qing-Yun Fang
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou 221116
- China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou 221116
- China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
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53
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Ding Q, Li M, Sun Y, Yu Y, Baell JB, Huang F. Copper-catalyzed [4 + 2] annulation reaction of β-enaminones and aryl diazonium salts without external oxidant: synthesis of highly functionalized 3H-1,2,4-triazines via homogeneous or heterogeneous strategy. Org Chem Front 2020. [DOI: 10.1039/c9qo01413f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Herein, both homogeneous and heterogeneous strategies were developed to access highly functionalized 3H-1,2,4-triazines using Cu-catalyzed [4 + 2] annulation.
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Affiliation(s)
- Qifeng Ding
- School of Food Science and Pharmaceutical Engineering
- Nanjing Normal University
- Nanjing 210023
- China
- School of Pharmaceutical Sciences
| | - Mingrui Li
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing 211816
- China
| | - Yiming Sun
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing 211816
- China
| | - Yang Yu
- School of Environmental Science and Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Jonathan B. Baell
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing 211816
- China
- Medicinal Chemistry Theme
| | - Fei Huang
- School of Food Science and Pharmaceutical Engineering
- Nanjing Normal University
- Nanjing 210023
- China
- School of Pharmaceutical Sciences
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54
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Roy T, Jacob A, Bhattacharjee S, Biju AT. [8+3]-Cycloaddition of Tropones with Azaoxyallyl Cations. Chem Asian J 2019; 14:4748-4753. [PMID: 31529771 DOI: 10.1002/asia.201901198] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 09/17/2019] [Indexed: 01/17/2023]
Abstract
Although azaoxyallyl cations are widely used as 1,3-dipoles for various cycloaddition reactions leading to nitrogen-containing heterocycles, their application in higher-order cycloaddition reaction remains scarce. Herein, we present the [8+3]-cycloaddition reaction of tropones with in situ generated azaoxyallyl cations allowing the one-step construction of cycloheptatriene-fused 1,4-oxazinones in moderate to good yields. This base-promoted new carbon-oxygen and carbon-nitrogen bond-forming reaction takes place under mild conditions in the absence of transition metal catalysts.
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Affiliation(s)
- Tony Roy
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110020, India
| | - Anu Jacob
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| | - Subrata Bhattacharjee
- 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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55
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Cheng X, Zhou S, Xu G, Wang L, Yang Q, Xuan J. [4+2]‐Cycloaddition of
para
‐Quinone Methides with Hexahydro‐1,3,5‐Triazines: Access to 1,3‐Benzoxazine Derivatives. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901169] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiao Cheng
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering Anhui University, Hefei Anhui 230601 People's Republic of China
| | - Shuang‐Jing Zhou
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering Anhui University, Hefei Anhui 230601 People's Republic of China
| | - Guo‐Yong Xu
- Institute of Physical Science and Information Technology Anhui University, Hefei Anhui 230601 People's Republic of China
| | - Long Wang
- China Three Gorges University, College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, Yichang Hubei 443002 People's Republic of China
| | - Qing‐Qing Yang
- China Three Gorges University, College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, Yichang Hubei 443002 People's Republic of China
| | - Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering Anhui University, Hefei Anhui 230601 People's Republic of China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education Hefei 230601 People's Republic of China
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56
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Jin Q, Zhang D, Zhang J. Facile synthesis of 1,2,4,5-tetrahydro-1,4-benzodiazepin-3-ones via cyclization of N-alkoxy α-halogenoacetamides with N-(2-chloromethyl)aryl amides. Org Biomol Chem 2019; 17:9708-9711. [PMID: 31701983 DOI: 10.1039/c9ob02260k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile and efficient cyclization of N-alkoxy α-halogenoacetamides with N-(2-chloromethyl)aryl amides has been achieved for rapid access to 1,2,4,5-tetrahydro-1,4-benzodiazepine-3-one derivatives (up to 95% yield). The intriguing features of this intermolecular cyclization include its mild reaction conditions and easy handling for scalable synthesis.
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Affiliation(s)
- Qiaomei Jin
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, China. and Laboratories of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, China
| | - Dongjian Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, China. and Laboratories of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, China
| | - Jian Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, China. and Laboratories of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu, China
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57
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Bera T, Singh B, Hamlin TA, Sahoo SC, Saha J. One-Step Assembly of Functionalized Morpholinones and 1,4-Oxazepane-3-ones via [3 + 3]- and [3 + 4]-Annulation of Aza-Oxyallyl Cation and Amphoteric Compounds. J Org Chem 2019; 84:15255-15266. [PMID: 31702149 DOI: 10.1021/acs.joc.9b02269] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new [3 + 3]- and [3 + 4]-annulation strategy involving azaoxyallyl cation and [1,m]-amphoteric compounds (m = 3,4) is presented. This concise method enables easy assembly of functionalized saturated N-heterocycles, comprised of six-and seven-membered rings and is of high significance in the context of drug discovery approaches. This reaction also represents a new trapping modality of the azaoxyallyl cation with amphoteric agents of different chain lengths that consist of a heteroatom nucleophilic site and a π-electrophilic site.
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Affiliation(s)
- Tishyasoumya Bera
- Division of Molecular Synthesis & Drug Discovery , Centre of Biomedical Research (CBMR) , SGPGIMS Campus. Raebareli Road , Lucknow 226014 , Uttar Pradesh , India
| | - Bandana Singh
- Division of Molecular Synthesis & Drug Discovery , Centre of Biomedical Research (CBMR) , SGPGIMS Campus. Raebareli Road , Lucknow 226014 , Uttar Pradesh , India
| | - Trevor A Hamlin
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling (ACMM) , Vrije Universiteit Amsterdam , De Boelelaan 1083 , Amsterdam 1081 HV , The Netherlands
| | - Subash C Sahoo
- Department of Chemistry , Panjab University , Sector 14 , Chandigarh 160014 , India
| | - Jaideep Saha
- Division of Molecular Synthesis & Drug Discovery , Centre of Biomedical Research (CBMR) , SGPGIMS Campus. Raebareli Road , Lucknow 226014 , Uttar Pradesh , India
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58
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Wang CY, Han JB, Wang L, Tang XY. Lewis Acid Catalyzed [4 + 2] Cycloaddition of N-Tosylhydrazones with ortho-Quinone Methides. J Org Chem 2019; 84:14258-14269. [PMID: 31599153 DOI: 10.1021/acs.joc.9b02040] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A formal [4 + 2] cycloaddition of N-tosylhydrazones with ortho-quinone methides was developed, affording the facile synthesis of diverse 1,3-oxazine derivatives under mild conditions. In this transformation, N-tosylhydrazones are used as a 1,2-dipole synthon under base-free conditions. Moreover, the substrate scope is broad, and the products are formed with high diastereoselectivities in most of the cases.
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Affiliation(s)
- Chun-Ying Wang
- School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage , Huazhong University of Science and Technology , 1037 Luoyu Road , Wuhan 430074 , People's Republic of China
| | - Jia-Bin Han
- School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage , Huazhong University of Science and Technology , 1037 Luoyu Road , Wuhan 430074 , People's Republic of China
| | - Long Wang
- School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage , Huazhong University of Science and Technology , 1037 Luoyu Road , Wuhan 430074 , People's Republic of China
| | - Xiang-Ying Tang
- School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage , Huazhong University of Science and Technology , 1037 Luoyu Road , Wuhan 430074 , People's Republic of China
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59
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Kim E, Mun D, Kim S. Synthesis of Dihydrobenzoxazine‐Fused Spirooxazoline‐4‐ones via [3+2] Cycloaddition of Azaoxyallyl Cations with Vinyl Benzoxazinanones. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900517] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Eunjin Kim
- Department of ChemistryKyonggi University 154-42 Gwanggyosan-ro, Yeongtong-gu Suwon 16227 Republic of Korea
| | - Dasom Mun
- 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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60
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Feng J, Zhao M, Lin X. [3 + 2]-Cycloaddition of Azaoxyallyl Cations with 1,2-Benzisoxazoles: A Rapid Entry to Oxazolines. J Org Chem 2019; 84:9548-9560. [PMID: 31257878 DOI: 10.1021/acs.joc.9b01166] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel and efficient [3 + 2] cycloaddition reaction of azaoxyallyl cations and 1,2-benzisoxazoles to give oxazoline derivatives has been developed. The transformation provides a rapid entry to functionalized oxazoline scaffolds under mild and transition-metal-free conditions, which will greatly expand the reaction types of heterocycle chemistry and pave the way for syntheses of bioactive compounds.
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Affiliation(s)
- Juan Feng
- School of Pharmaceutical Sciences , Capital Medical University , Beijing 100069 , China.,Beijing Area Major Laboratory of Peptide and Small Molecular Drugs , Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China , Beijing 100069 , China.,Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology) , Ministry of Education , Beijing 100029 , China
| | - Ming Zhao
- School of Pharmaceutical Sciences , Capital Medical University , Beijing 100069 , China.,Beijing Area Major Laboratory of Peptide and Small Molecular Drugs , Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China , Beijing 100069 , China.,Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology) , Ministry of Education , Beijing 100029 , China
| | - Xuanzi Lin
- School of Pharmaceutical Sciences , Capital Medical University , Beijing 100069 , China
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61
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Feng J, Zhou M, Lin X, Lu A, Zhang X, Zhao M. Base-Mediated [3 + 4]-Cycloaddition of Anthranils with Azaoxyallyl Cations: A New Approach to Multisubstituted Benzodiazepines. Org Lett 2019; 21:6245-6248. [DOI: 10.1021/acs.orglett.9b02118] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juan Feng
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
- Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing, China
| | - Meng Zhou
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
| | - Xuanzi Lin
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
| | - An Lu
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
| | - Xiaoyi Zhang
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
- Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing, China
| | - Ming Zhao
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing, China
- Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing, China
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62
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Sun L, Liu Y, Wang Y, Li Y, Liu Z, Lu T, Li W. An efficient synthesis of oxazolines via a cascade reaction between azaoxyallyl cations and 1,2-benzisoxazoles. Org Biomol Chem 2019; 17:7526-7530. [PMID: 31368471 DOI: 10.1039/c9ob01366k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A formal [3 + 2] cycloaddition reaction between the C and O terminals of azaoxyallyl cations formed in situ and 1,2-benzisoxazoles has been realized. This one-pot cycloaddition method provided an effective and practical pathway to synthesize oxazoline in good yields under mild conditions. The title products exhibited unique fluorescence properties.
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Affiliation(s)
- Li Sun
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China.
| | - Yi Liu
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China.
| | - Yankai Wang
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China.
| | - Yuanyuan Li
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China.
| | - Zhiwen Liu
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China.
| | - Tao Lu
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China.
| | - Wenhai Li
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China.
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63
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Jaiswal V, Mondal B, Singh K, Das D, Saha J. [3 + 2]-Annulation of Azaoxyallyl Cations and Thiocarbonyls for the Assembly of Thiazolidin-4-ones. Org Lett 2019; 21:5848-5852. [PMID: 31294998 DOI: 10.1021/acs.orglett.9b01933] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A base-promoted, efficient [3 + 2] annulation between azaoxyallyl cations and thiocarbonyls is reported for flexible access to highly functionalized thiazolidin-4-one derivatives in good to excellent yields. An intriguing feature of this method is the metal or Lewis acid free late-stage entry of distinct set of functional groups at C2 of thiazolidin-4-ones via substitution of a latent amino functional group. Overall, this approach constitutes a general platform for convenient access to this medicinally important scaffold.
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Affiliation(s)
- Vandana Jaiswal
- Division of Molecular Synthesis & Drug Discovery , Centre of Biomedical Research (CBMR) , SGPGIMS Campus, Raebareli Road , Lucknow 226014 , Uttar Pradesh , India
| | - Biplab Mondal
- Division of Molecular Synthesis & Drug Discovery , Centre of Biomedical Research (CBMR) , SGPGIMS Campus, Raebareli Road , Lucknow 226014 , Uttar Pradesh , India
| | - Kuldeep Singh
- Division of Molecular Synthesis & Drug Discovery , Centre of Biomedical Research (CBMR) , SGPGIMS Campus, Raebareli Road , Lucknow 226014 , Uttar Pradesh , India
| | - Dinabandhu Das
- School of Physical Sciences , Jawaharlal Nehru University , New Delhi 110067 , India
| | - Jaideep Saha
- Division of Molecular Synthesis & Drug Discovery , Centre of Biomedical Research (CBMR) , SGPGIMS Campus, Raebareli Road , Lucknow 226014 , Uttar Pradesh , India
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64
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Zhou S, Cheng X, Xuan J. [3+2]‐Cycloaddition of Azaoxyallyl Cations with Cyclopropenones and Cyclopropenethiones: Synthesis of Spirocyclic Oxazole and Thiazole Derivatives. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900272] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shuang‐Jing Zhou
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials College of Chemistry & Chemical EngineeringAnhui University Hefei, Anhui 230601 China
| | - Xiao Cheng
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials College of Chemistry & Chemical EngineeringAnhui University Hefei, Anhui 230601 China
| | - Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials College of Chemistry & Chemical EngineeringAnhui University Hefei, Anhui 230601 China
- Institute of Physical Science and Information TechnologyAnhui University Hefei, Anhui 230601 China
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65
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Cai BG, Chen ZL, Xu GY, Xuan J, Xiao WJ. [3 + 2]-Cycloaddition of 2H-Azirines with Nitrosoarenes: Visible-Light-Promoted Synthesis of 2,5-Dihydro-1,2,4-oxadiazoles. Org Lett 2019; 21:4234-4238. [DOI: 10.1021/acs.orglett.9b01416] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Bao-Gui Cai
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Ze-Le Chen
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Guo-Yong Xu
- Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People’s Republic of China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Wen-Jing Xiao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, People’s Republic of China
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66
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Paul I, Mittal N, De S, Bolte M, Schmittel M. Catch–Release System for Dosing and Recycling Silver(I) Catalyst with Status of Catalytic Activity Reported by Fluorescence. J Am Chem Soc 2019; 141:5139-5143. [DOI: 10.1021/jacs.9b01182] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Indrajit Paul
- Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein Straße 2, D-57068 Siegen, Germany
| | - Nikita Mittal
- Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein Straße 2, D-57068 Siegen, Germany
| | - Soumen De
- Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein Straße 2, D-57068 Siegen, Germany
| | - Michael Bolte
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Straße 7, D-60438 Frankfurt (Main), Germany
| | - Michael Schmittel
- Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein Straße 2, D-57068 Siegen, Germany
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67
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Wang KK, Li YL, Wang ZY, Hu MW, Qiu TT, Zhu BK. Cross 1,3-dipolar cycloadditions of C,N-cyclic azomethine imines with an N-benzyl azomethine ylide: facile access to fused tricyclic 1,2,4-hexahydrotriazines. Org Biomol Chem 2019; 17:244-247. [PMID: 30539953 DOI: 10.1039/c8ob02932f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A cross 1,3-dipolar cycloaddition of two different ylides between C,N-cyclic azomethine imines with an in situ-generated nonstabilized azomethine ylide from an N-benzyl precursor was realized. The reactions afforded a clean and facile access to diverse fused tricyclic 1,2,4-hexahydrotriazines in high yields (up to 96%). The chemical structures of the typical compounds were confirmed by X-ray single-crystal structure analysis.
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Affiliation(s)
- Kai-Kai Wang
- College of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang 453000, P. R. China.
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68
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Cheng X, Cao X, Zhou S, Cai B, He X, Xuan J. Transition‐Metal Free Construction of Isoquinoline‐fused Triazines Containing Alkenyl C−X Bonds. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801181] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xiao Cheng
- Department of Chemistry and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized MaterialsAnhui University, Hefei Anhui 230601 People's Republic of China
| | - Xia Cao
- Department of Chemistry and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized MaterialsAnhui University, Hefei Anhui 230601 People's Republic of China
| | - Shuang‐Jing Zhou
- Department of Chemistry and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized MaterialsAnhui University, Hefei Anhui 230601 People's Republic of China
| | - Bao‐Gui Cai
- Department of Chemistry and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized MaterialsAnhui University, Hefei Anhui 230601 People's Republic of China
| | - Xiang‐Kui He
- Department of Chemistry and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized MaterialsAnhui University, Hefei Anhui 230601 People's Republic of China
| | - Jun Xuan
- Department of Chemistry and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized MaterialsAnhui University, Hefei Anhui 230601 People's Republic of China
- Institute of Physical Science and Information TechnologyAnhui University, Hefei Anhui 230601 People's Republic of China
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69
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Yang QQ, Yin X, He XL, Du W, Chen YC. Asymmetric Formal [5 + 3] Cycloadditions with Unmodified Morita–Baylis–Hillman Alcohols via Double Activation Catalysis. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04942] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Qian-Qian Yang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xiang Yin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xiao-Long He
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
- College of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
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70
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El Bouakher A, Martel A, Comesse S. α-Halogenoacetamides: versatile and efficient tools for the synthesis of complex aza-heterocycles. Org Biomol Chem 2019; 17:8467-8485. [DOI: 10.1039/c9ob01683j] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review presents the use of α-alkyl- and α-alkoxy-halogenoacetamides as powerful partners for domino and 1,3-dipolar cycloaddition reactions resulting in a ring closure.
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Affiliation(s)
| | - Arnaud Martel
- IMMM
- UMR 6283 CNRS
- Le Mans Université
- 72085 Le Mans
- France
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71
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Ansari AJ, Pathare RS, Kumawat A, Maurya AK, Verma S, Agnihotri VK, Joshi R, Metre RK, Sharon A, Pardasani RT, Sawant DM. A diversity-oriented synthesis of polyheterocycles via the cyclocondensation of azomethine imine. NEW J CHEM 2019. [DOI: 10.1039/c9nj02874a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pd-Catalyzed sequential reactions to afford skeletally diverse molecules are described.
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72
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Pan WC, Liu JQ, Wang XS. Dioxane-involving reaction for the synthesis of 3-aryl-1-(2-(vinyloxy)ethoxy)isoquinolines catalyzed by AgOTf. Org Biomol Chem 2018; 16:6070-6076. [PMID: 30091433 DOI: 10.1039/c8ob01572d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Dioxane was found to be involved in the reaction of 2-(arylethynyl)benzaldehydes and 3-aminopyrazine-2-carbohydrazide, and underwent a ring-opening reaction catalyzed by AgOTf. This domino type procedure provided an efficient method for the synthesis of 3-aryl-1-(2-(vinyloxy)ethoxy)isoquinolines in good yields via the loss of a molecule of 3-aminopyrazine-2-carboxamide.
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Affiliation(s)
- Wan-Chen Pan
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China.
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73
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Singh R, Nagesh K, Yugandhar D, Prasanthi AVG. Metal- and Oxidant-Free Modular Approach To Access N-Alkoxy Oxindoles via Aryne Annulation. Org Lett 2018; 20:4848-4853. [PMID: 30044101 DOI: 10.1021/acs.orglett.8b01972] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An unprecedented metal- and oxidant-free (intermolecular) approach to access N-alkoxy oxindoles via [3 + 2] cycloadition of in situ generated electrophilic species viz. aryne and (putative) aza-oxyallyl cation is reported. This approach is amenable to both C3-unsubstituted as well as C3-substituted oxindoles. A one-pot manipulation further makes this reaction highly practical. The versatility of this approach was demonstrated through valuable synthetic transformations.
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Affiliation(s)
- Ritesh Singh
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Raebareli - 229010 , UP , India.,Organic Synthesis and Process Chemistry Division , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , Telangana , India
| | - Kommu Nagesh
- Organic Synthesis and Process Chemistry Division , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , Telangana , India
| | - Doddapaneni Yugandhar
- Organic Synthesis and Process Chemistry Division , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , Telangana , India
| | - A V G Prasanthi
- Organic Synthesis and Process Chemistry Division , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , Telangana , India
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74
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Efficient synthesis of 1,2,4-oxadiazine-5-ones via [3+3] cycloaddition of in situ generated aza-oxyallylic cations with nitrile oxides. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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75
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Ji D, Sun J. [3 + 2]-Cycloaddition of Azaoxyallyl Cations with Hexahydro-1,3,5-triazines: Access to 4-Imidazolidinones. Org Lett 2018; 20:2745-2748. [DOI: 10.1021/acs.orglett.8b00951] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Danqing Ji
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
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76
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Cordier M, Archambeau A. (3 + 3) Cycloaddition of Oxyallyl Cations with Nitrones: Diastereoselective Access to 1,2-Oxazinanes. Org Lett 2018; 20:2265-2268. [DOI: 10.1021/acs.orglett.8b00617] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Marie Cordier
- Laboratoire de Chimie Moléculaire, UMR 9168, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France
| | - Alexis Archambeau
- Laboratoire de Synthèse Organique, UMR 7652, Ecole Polytechnique, ENSTA ParisTech, CNRS, 91128 Palaiseau Cedex, France
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77
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Xu X, Zhang K, Li P, Yao H, Lin A. [3 + 3] Cycloaddition of Azides with in Situ Formed Azaoxyallyl Cations To Synthesize 1,2,3,4-Tetrazines. Org Lett 2018; 20:1781-1784. [PMID: 29558144 DOI: 10.1021/acs.orglett.8b00280] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A formal [3 + 3] cycloaddition reaction between azides and in situ formed azaoxyallyl cations has been realized. This reaction provided an efficient and practical pathway to synthesize 1,2,3,4-tetrazines in good yields under mild conditions. Biologically active molecules could also be well compatible, highlighting the potential value of this reaction.
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Affiliation(s)
- Xiaoying Xu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy , China Pharmaceutical University , Nanjing 210009 , P. R. China
| | - Kaifan Zhang
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy , China Pharmaceutical University , Nanjing 210009 , P. R. China
| | - Panpan Li
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy , China Pharmaceutical University , Nanjing 210009 , P. R. China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy , China Pharmaceutical University , Nanjing 210009 , P. R. China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy , China Pharmaceutical University , Nanjing 210009 , P. R. China
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78
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Xuan J, Cao X, Cheng X. Advances in heterocycle synthesis via [3+m]-cycloaddition reactions involving an azaoxyallyl cation as the key intermediate. Chem Commun (Camb) 2018; 54:5154-5163. [DOI: 10.1039/c8cc00787j] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This feature article highlights recent advances in heterocycle synthesis via [3+m]-cycloaddition reactions involving an azaoxyallyl cation as the key intermediate.
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Affiliation(s)
- Jun Xuan
- Department of Chemistry
- Anhui University
- Hefei
- China
| | - Xia Cao
- Department of Chemistry
- Anhui University
- Hefei
- China
| | - Xiao Cheng
- Department of Chemistry
- Anhui University
- Hefei
- China
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79
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Zhang Y, Ma H, Liu X, Cui X, Wang S, Zhan Z, Pu J, Huang G. The synthesis of multi-substituted pyrrolidinones via a direct [3 + 2] cycloaddition of azaoxyallyl cations with aromatic ethylenes. Org Biomol Chem 2018; 16:4439-4442. [DOI: 10.1039/c8ob00899j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A novel [3 + 2] cycloaddition reaction of azaoxyallyl cations and aromatic ethylenes has been developed to afford multi-substituted pyrrolidinones in moderate to good yields.
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Affiliation(s)
- Yixin Zhang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Haojie Ma
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Xingxing Liu
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Xinfeng Cui
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Shaohua Wang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Zhenzhen Zhan
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Jinghong Pu
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
| | - Guosheng Huang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou 730000
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