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Tian G, Jin WL, Qin C, Wang J. Convenient synthesis of N-alkyl-3,1-benzoxazin-2-ones from carbamate protected anthranil aldehydes and ketones via one-step alkylation/alkoxy rearrangement. Org Biomol Chem 2023; 21:5757-5761. [PMID: 37404025 DOI: 10.1039/d3ob00812f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
A practical and step-economical protocol was developed to prepare N-alkyl-3,1-benzoxazin-2-one derivatives from anthranil aldehydes and ketones via one-step alkylation/alkoxy rearrangement, where three new chemical bonds and one ring were constructed in a single step. Control studies revealed a stepwise mechanism and that the alkoxy rearrangement was an intermolecular process.
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Affiliation(s)
- Guang Tian
- Department of Chemistry, Shanxi Key Laboratory of Polymer Science & Technology, MOE Key Laboratory of Supernormal Material Physics & Chemistry, School of Chemical & Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China.
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Wei-Li Jin
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Chuanguang Qin
- Department of Chemistry, Shanxi Key Laboratory of Polymer Science & Technology, MOE Key Laboratory of Supernormal Material Physics & Chemistry, School of Chemical & Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China.
| | - Jie Wang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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2
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Vayer M, Pastor M, Kofink C, Maulide N. Electrochemical Rearrangement of 3-Hydroxyoxindoles into Benzoxazinones. Org Lett 2021; 24:27-32. [PMID: 34949089 PMCID: PMC8762708 DOI: 10.1021/acs.orglett.1c03569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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We report an unexpected
rearrangement of 3-hydroxyoxindoles into
benzoxazinones using electrochemistry. Our reaction employs mild and
environmentally friendly conditions, and the benzoxazinone products
are obtained in moderate to excellent yields. Mechanistic experiments
suggest that a peroxide intermediate is likely involved.
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Affiliation(s)
- Marie Vayer
- Christian Doppler Laboratory for Entropy-Oriented Drug Design, Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Miryam Pastor
- Christian Doppler Laboratory for Entropy-Oriented Drug Design, Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Christiane Kofink
- Boehringer Ingelheim RCV GmbH & Co KG, Doktor-Boehringer-Gasse 5-11, 1120 Vienna, Austria
| | - Nuno Maulide
- Christian Doppler Laboratory for Entropy-Oriented Drug Design, Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
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3
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Fan H, Wan Y, Pan P, Cai W, Liu S, Liu C, Zhang Y. A cascade approach to 3D cyclic carbamates via an ionic decarboxylative functionalization of olefinic oxamic acids. Chem Commun (Camb) 2020; 56:86-89. [DOI: 10.1039/c9cc07709j] [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
An m-CPBA-mediated intramolecular epoxidation-decarboxylative alkoxylation cascade reaction of olefinic oxamic acids has been developed.
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Affiliation(s)
- Huaqiang Fan
- State Key Laboratory of Bioengineering Reactor
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yi Wan
- State Key Laboratory of Bioengineering Reactor
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Peng Pan
- State Key Laboratory of Bioengineering Reactor
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Wenbin Cai
- State Key Laboratory of Bioengineering Reactor
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Shihui Liu
- State Key Laboratory of Bioengineering Reactor
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Chuanxu Liu
- Department of Hematology
- Xinhua Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- P. R. China
| | - Yongqiang Zhang
- State Key Laboratory of Bioengineering Reactor
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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Yu YM, Huang YN, Deng J. Catalytic Asymmetric Chlorocyclization of 2-Vinylphenylcarbamates for Synthesis of 1,4-Dihydro-2H-3,1-benzoxazin-2-one Derivatives. Org Lett 2017; 19:1224-1227. [DOI: 10.1021/acs.orglett.7b00272] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Yan-Min Yu
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, Tianjin 300072, China
| | - Ya-Nan Huang
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, Tianjin 300072, China
| | - Jun Deng
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, Tianjin 300072, China
- School
of Pharmaceutical Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, China
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6
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R. Suárez-Castillo O, I. Bautista-Hernández C, Sánchez-Zavala M, Meléndez-Rodríguez M, Sierra-Zenteno A, S. Morales-Ríos M, Joseph-Nathan P. Microwave-Assisted Synthesis of 3,1-Benzoxazin-2-ones from 3-Hydroxyoxindoles. HETEROCYCLES 2012. [DOI: 10.3987/com-12-12472] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Kobayashi K, Fukamachi S, Tanmatsu M, Konishi H. One-Pot Synthesis of 4-Substituted Isothiochroman-1-thiones from α-Substituted 2-Bromostyrenes and Carbon Disulfide. HETEROCYCLES 2009. [DOI: 10.3987/com-09-11687] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kobayashi K, Fukamachi S, Konishi H. Synthesis of 1,4-Dihydro-2H-3,1-benzoxazin-2-ones by Hydriodic Acid Mediated Cyclization of tert-Butyl 2-Vinylphenylcarbamates. HETEROCYCLES 2008. [DOI: 10.3987/com-08-11399] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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