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Shen G, Li Z, Zhao L, Zhang Y, Zhang Y, Li Z, Huang X, Lv X. Room-Temperature Cascade Electrophilic Addition/Cyclization/Oxidation Reactions: Divergent Selective Synthesis of Brominated 2H-Chromenes, 2H-Chromen-2-ols and 2H-Chromen-2-ones. Chemistry 2024:e202401011. [PMID: 38757219 DOI: 10.1002/chem.202401011] [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: 03/12/2024] [Revised: 05/14/2024] [Accepted: 05/16/2024] [Indexed: 05/18/2024]
Abstract
The room temperature metal-free cascade electrophilic addition/cyclization/oxidation reactions of (3-phenoxyprop-1-yn-1-yl)benzenes to divergently synthesize various brominated benzopyran derivatives (3-bromo-2H-chromenes, 3-bromo-2H-chromen-2-ols and 3-bromo coumarins) by tuning the amount of Br2 and H2O have been developed. The method exhibited high selectivity, mild reaction conditions, broad substrate scope, high efficiency, and the applicability for derivatization of the brominated products. The importance of the strategies provides a great advantage for selective synthesis of brominated benzopyran derivatives.
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Affiliation(s)
- Guodong Shen
- School of Chemistry and Chemical Engineering, Liaocheng University, 1 Hunan Avenue, Liaocheng, 252000, Shandong, P. R. China
| | - Zhanjun Li
- School of Chemistry and Chemical Engineering, Liaocheng University, 1 Hunan Avenue, Liaocheng, 252000, Shandong, P. R. China
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology E-208 West Campus, 2 Ling Gong Road, Dalian, 116024, P. R. China
| | - Lingyu Zhao
- School of Chemistry and Chemical Engineering, Liaocheng University, 1 Hunan Avenue, Liaocheng, 252000, Shandong, P. R. China
| | - Ye Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, 1 Hunan Avenue, Liaocheng, 252000, Shandong, P. R. China
| | - Yalin Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, 1 Hunan Avenue, Liaocheng, 252000, Shandong, P. R. China
| | - Zhen Li
- School of Chemistry and Chemical Engineering, Liaocheng University, 1 Hunan Avenue, Liaocheng, 252000, Shandong, P. R. China
| | - Xianqiang Huang
- School of Chemistry and Chemical Engineering, Liaocheng University, 1 Hunan Avenue, Liaocheng, 252000, Shandong, P. R. China
| | - Xin Lv
- College of Chemistry and Life Sciences, Zhejiang Normal University, 688 Yingbin Avenue, Jinhua, 321004, P. R. China
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Geng M, Huang M, Kuang J, Fang W, Xiao X, Miao M, Ma Y. Cu(II)-Catalyzed [3 + 1 + 1 + 1] Cyclization of 1,3-Diketones and 2-Naphthols Using N, N-Dimethylethanolamine as a Dual Carbon Synthon for the Synthesis of 2 H-Chromenes. J Org Chem 2024; 89:152-162. [PMID: 38086005 DOI: 10.1021/acs.joc.3c01849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Reactions with diverse C1 synthons to realize homologation were well explored. However, homologations occurring twice with one C1 synthon in a reaction were less reported. We disclose herein a Cu(II)-catalyzed novel and efficient synthesis of 2H-chromenes from 2-naphthols, 1,3-diketones, and N,N-dimethylethanolamine (DMEA) as a dual carbon synthon. Various 2H-chromenes with different functional groups are constructed in moderate to good yields. This is the first report that DMEA acts as a dual C1 synthon.
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Affiliation(s)
- Meiqi Geng
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, China
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Minzhao Huang
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, China
| | - Jinqiang Kuang
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, China
| | - Weiwei Fang
- International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, China
| | - Xuqiong Xiao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, No. 2318 Yuhangtang Rd. Hangzhou 311121, P R China
| | - Maozhong Miao
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Yongmin Ma
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, China
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Golubev AS, Ostapchuk PN, Strelkova TV, Kagramanov ND, Suponitsky KY, Takazova RU, Chkanikov ND. Synthesis of 4-trifluoromethyl-2 H-chromenes via the reaction of 2-(trifluoroacetyl)phenols with vinyltriphenylphosphonium chloride. Org Biomol Chem 2022; 20:6809-6820. [PMID: 35959998 DOI: 10.1039/d2ob01177h] [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
Substituted on the benzene ring 4-CF3-2H-chromenes have been prepared from substituted 2-(trifluoroacetyl)phenols and vinyltriphenylphosphonium chloride according to the Schweizer protocol in moderate to excellent yields. The influence of the type and the position of aromatic ring substituents on yields of 4-CF3-2H-chromenes have been investigated. It has been shown that 4-CF3-2H-chromenes are convenient precursors to 4-CF3-coumarins.
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Affiliation(s)
- Alexander S Golubev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, GSP-1, Moscow, Russian Federation.
| | - Petr N Ostapchuk
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, GSP-1, Moscow, Russian Federation.
| | - Tatiana V Strelkova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, GSP-1, Moscow, Russian Federation.
| | - Nikolai D Kagramanov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, GSP-1, Moscow, Russian Federation.
| | - Kyrill Yu Suponitsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, GSP-1, Moscow, Russian Federation. .,G.V. Plekhanov Russian University of Economics, 36 Stremyannyi Line, 117997, Moscow, Russia
| | - Rina U Takazova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, GSP-1, Moscow, Russian Federation.
| | - Nikolai D Chkanikov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, GSP-1, Moscow, Russian Federation.
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Pramanik A, Ghatak A, Khanra S, Das D, Rakshit T, Bhar S. Metal Free Approach towards the Synthesis of Structurally Diverse 1, 2‐Dihydronaphthalene Scaffolds and Theoretical Investigation. ChemistrySelect 2022. [DOI: 10.1002/slct.202201159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Amit Pramanik
- Department of Chemistry A. B. N. Seal College Cooch Behar Pin-736 101 West Bengal India
| | - Avishek Ghatak
- Department of Chemistry Dr. A. P. J. Abdul Kalam Government College Kolkata 700156 India
| | - Somnath Khanra
- Department of Chemistry A. B. N. Seal College Cooch Behar Pin-736 101 West Bengal India
- Department of Chemistry The University of Burdwan Bardhaman 713104 West Bengal India
| | - Debasis Das
- Department of Chemistry The University of Burdwan Bardhaman 713104 West Bengal India
| | - Tatini Rakshit
- Department of Chemistry School of Natural Sciences Shiv Nadar University Dadri UP 201314 India
| | - Sanjay Bhar
- Department of Chemistry Organic Chemistry Section Jadavpur University Kolkata 700 032 India
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