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1
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Li B, Yuan J, Ye X, Zhang R, Li J, Wang Y, Hu J, Dong D. PIFA-Mediated Tandem Hofmann-Type Rearrangement and Cyclization Reaction of α-Acyl-β-aminoacrylamides: Access to Polysubstituted Oxazol-2(3 H)-ones. J Org Chem 2021; 86:17944-17954. [PMID: 34872249 DOI: 10.1021/acs.joc.1c02276] [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
An efficient and straightforward synthesis of polysubstituted oxazol-2(3H)-ones has been developed via a tandem Hofmann-type rearrangement and cyclization reaction of various α-acyl-β-aminoacrylamides mediated by phenyl iodine(III) bis(trifluoroacetate) (PIFA) in the presence of trifloroacetic acid (TFA). This novel protocol features readily available starting materials, mild reaction conditions, simple execution, high chemoselectivity, good functional group tolerance, and a metal-free oxidation process.
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Affiliation(s)
- Baibin Li
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Jingwen Yuan
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Xuebei Ye
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Rui Zhang
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jiacheng Li
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yu Wang
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Jiana Hu
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Dewen Dong
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
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2
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Ieawsuwan W, Ruchirawat S. An Efficient Silver Tetrafluoroborate-Catalyzed Cycloisomerization of Ynamides. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)21] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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Vessally E, Nikpasand M, Ahmadi S, Delir Kheirollahi Nezhad P, Hosseinian A. Transition metal-catalyzed intramolecular cyclization of N-Boc-protected propargyl/ethynyl amines: a novel and convenient access to 2-oxazolidinone/oxazolone derivatives. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1542-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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4
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Ieawsuwan W, Ruchirawat S. PIFA-BF 3·OEt 2 mediated intramolecular regioselective domino cyclization of ynamides: A novel method for the synthesis of tetrahydroisoquinoline-oxazol-2(3H)-ones. Bioorg Med Chem 2017; 25:2856-2867. [PMID: 28351608 DOI: 10.1016/j.bmc.2017.03.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/09/2017] [Accepted: 03/17/2017] [Indexed: 10/19/2022]
Abstract
The transition metal-free intramolecular regioselective domino cyclization of N-Boc protected ynamides has been developed to provide the corresponding tetrahydroisoquinoline-oxazo-2(3H)-ones in moderate to good yields.
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Affiliation(s)
- Winai Ieawsuwan
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand.
| | - Somsak Ruchirawat
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; Chemical Biology Program, Chulabhorn Graduate Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand
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5
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Tang L, Huang H, Xi Y, He G, Zhu H. Pd/Cu-Catalyzed tandem head-to-tail dimerization/cycloisomerization of terminal ynamides for the synthesis of 5-vinyloxazolones. Org Biomol Chem 2017; 15:2923-2930. [DOI: 10.1039/c7ob00381a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This is the first Pd/Cu-catalyzed tandem head-to-tail dimerization/cycloisomerization of terminal ynamides for the synthesis of 5-vinyl-oxazolones.
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Affiliation(s)
- Luning Tang
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Hai Huang
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Yang Xi
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Guangke He
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Hongjun Zhu
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
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6
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Huang H, Zhu X, He G, Liu Q, Fan J, Zhu H. Controlled Synthesis of 1,3,5-Oxadiazin-2-ones and Oxazolones through Regioselective Iodocyclization of Ynamides. Org Lett 2015; 17:2510-3. [DOI: 10.1021/acs.orglett.5b01045] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hai Huang
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Xiaolin Zhu
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Guangke He
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Qi Liu
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Junzhen Fan
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Hongjun Zhu
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
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7
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Huang H, He G, Zhu G, Zhu X, Qiu S, Zhu H. Palladium-Catalyzed Intramolecular Cyclization of Ynamides: Synthesis of 4-Halo-oxazolones. J Org Chem 2015; 80:3480-7. [DOI: 10.1021/acs.joc.5b00071] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hai Huang
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Guangke He
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Guohao Zhu
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Xiaolin Zhu
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Shineng Qiu
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Hongjun Zhu
- Department of Applied Chemistry,
College of Sciences, Nanjing Tech University, Nanjing 211816, People’s Republic of China
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8
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Lu Z, Luo F, Wang L, Zhu G. Palladium-Catalyzed Direct Alkenylation of 2-Oxazolones: An Entry to 3,4,5-Trisubstituted 2-Oxazolones. J Org Chem 2013; 78:10894-901. [DOI: 10.1021/jo4018793] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Zenghui Lu
- Department
of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, People’s Republic of China
| | - Fang Luo
- Department
of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, People’s Republic of China
| | - Lina Wang
- Department
of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, People’s Republic of China
| | - Gangguo Zhu
- Department
of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, People’s Republic of China
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