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Li FQ, Xie PY, Chen HY, Bian M, Gao YN, Liu ZJ. One-pot catalyst-free synthesis of benzopyrroxazine derivatives by a mutually activated sequential annulation process. Org Biomol Chem 2022; 20:4709-4713. [PMID: 35612896 DOI: 10.1039/d2ob00735e] [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
A one-pot catalyst-free reaction of o-hydroxyaryl azomethine ylides, vinyl pyridines and paraformaldehyde for the synthesis of benzopyrroxazines is reported, which offers a straightforward and atom-economical procedure for the preparation of benzopyrroxazine derivatives in moderate to excellent yields under mild conditions. A self-catalyzed [3 + 2] annulation through a mutual activation method and a sequential non-catalyzed [5 + 1] annulation process contribute to this strategy. The corresponding control experiments have been conducted to reveal the mechanism of this reaction.
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Affiliation(s)
- Fu-Qiang Li
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, P. R. China.
| | - Pu-Yuan Xie
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, P. R. China.
| | - Hui-Yu Chen
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, P. R. China.
| | - Ming Bian
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, P. R. China.
| | - Yu-Ning Gao
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, P. R. China.
| | - Zhen-Jiang Liu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, P. R. China. .,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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2
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Wasfy N, Doan B, Rasheed F, Fishlock D, Orellana A. Palladium-Catalyzed, Mild Dehydrogenation of 4-Alkylpyridines. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05209] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nour Wasfy
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Brian Doan
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Faizan Rasheed
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Dan Fishlock
- Process Chemistry and Catalysis, Synthetic Molecule Technical Development, F. Hoffmann-La Roche Ltd. Basel 4070, Switzerland
| | - Arturo Orellana
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
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3
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Fu Y, Qin C, Zhang Z, Shi H, Zhao J, Gong X, Shi L, Li H. [4 + 2] Cycloaddition of trifluoromethyl ketimines with 2-alkenyl azaarenes through selective C–F bond cleavage of CF 3. Org Chem Front 2021. [DOI: 10.1039/d1qo00639h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A transition-metal-free [4 + 2] cycloaddition of trifluoromethyl ketimines with 2-alkenyl azaarenes through selective C–F bond cleavage of CF3 has been developed to afford cis-tetrahydroxypyridine products in moderate yields under mild conditions.
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Affiliation(s)
- Yiwei Fu
- State Key Laboratory of Bioreactor Engineering
- Shanghai Key Laboratory of New Drug Design
- and School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
| | - Cong Qin
- State Key Laboratory of Bioreactor Engineering
- Shanghai Key Laboratory of New Drug Design
- and School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
| | - Zhiqiang Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory for Precision Chemistry and Molecular Engineering
- Feringa Nobel Prize Scientist Joint Research Center
- Centre for Computational Chemistry and Research Institute of Industrial Catalysis
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
| | - Haoyu Shi
- State Key Laboratory of Bioreactor Engineering
- Shanghai Key Laboratory of New Drug Design
- and School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
| | - Jianbo Zhao
- State Key Laboratory of Bioreactor Engineering
- Shanghai Key Laboratory of New Drug Design
- and School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
| | - Xueqing Gong
- Key Laboratory for Advanced Materials and Joint International Research Laboratory for Precision Chemistry and Molecular Engineering
- Feringa Nobel Prize Scientist Joint Research Center
- Centre for Computational Chemistry and Research Institute of Industrial Catalysis
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
| | - Lei Shi
- Huabao Flavours & Fragrances Co
- Ltd
- Shanghai 201822
- China
| | - Hao Li
- State Key Laboratory of Bioreactor Engineering
- Shanghai Key Laboratory of New Drug Design
- and School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
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4
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Ošeka M, Laudadio G, van Leest NP, Dyga M, Bartolomeu ADA, Gooßen LJ, de Bruin B, de Oliveira KT, Noël T. Electrochemical Aziridination of Internal Alkenes with Primary Amines. Chem 2021. [DOI: 10.1016/j.chempr.2020.12.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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5
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Liu Y, Yu Y, Sun C, Fu Y, Mang Z, Shi L, Li H. Transition-Metal Free Chemoselective Hydroxylation and Hydroxylation–Deuteration of Heterobenzylic Methylenes. Org Lett 2020; 22:8127-8131. [DOI: 10.1021/acs.orglett.0c03108] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yonghai Liu
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yang Yu
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Chengyu Sun
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yiwei Fu
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhiguo Mang
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Lei Shi
- Corporate R&D Division, Firmenich Aromatics (China) Company, Ltd., Shanghai 201108, China
| | - Hao Li
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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6
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Yu Y, Zhang Y, Sun C, Shi L, Wang W, Li H. Copper Promoted Aerobic Oxidative C(sp 3)-C(sp 3) Bond Cleavage of N-(2-(Pyridin-2-yl)-ethyl)anilines. J Org Chem 2020; 85:2725-2732. [PMID: 31939303 DOI: 10.1021/acs.joc.9b02919] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A strategy of aerobic oxidative C(sp3)-C(sp3) bond cleavage of N-ethylaniline derivatives bearing azaarenes for the synthesis of N-aryl formamides has been developed. This approach was carried out smoothly with the CuI/TEMPO/air system to give N-aryl formamides in yields of 50-90%. With this methodology, a mutagenically active compound was constructed in 90% yield. Moreover, the reaction also provided a one-pot synthetic tool for accessing a promoter of hematopoietic stem cells by difunctionalization in 61% yield.
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Affiliation(s)
- Yang Yu
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Yong 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 , 130 Meilong Road , Shanghai 200237 , China
| | - Chengyu Sun
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Lei Shi
- Corporate R&D Division , Firmenich Aromatics (China) Co., Ltd. , Shanghai 201108 , China
| | - Wei Wang
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China.,Department of Pharmacology and Toxicology and BIO5 Institute , University of Arizona , 1703 E. Mabel Street , P.O. Box 210207, Tucson , Arizona 85721-0207 , United States
| | - Hao Li
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
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