1
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Tang L, Jia F, Zhang L, Wu T, Wei X, Zheng L, Zhou Q. Base-Dependent Divergent Carbodifluoroalkylation and Halodifluoroalkylation of Alkenes under Visible-Light Irradiation. J Org Chem 2024; 89:13457-13471. [PMID: 39225232 DOI: 10.1021/acs.joc.4c01591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Organic molecules containing a difluoroalkyl group are valuable and versatile chemicals because of their unique physicochemical and biological properties. Accordingly, the development of efficient and practical difluoroalkylation for the preparation of these compounds is important and attractive. Herein, we demonstrate photoredox-catalyzed and base-dependent selective carbodifluoroalkylation and halodifluoroalkylation of alkenes using readily available 2-(allyloxy)arylaldehydes [or 2-(allylamino)arylaldehydes] and XCF2COOEt (or BrCF2CONR1R2) as starting materials. The developed reaction enables convenient and accurate synthesis of difluoroalkylated chroman-4-ones and aldehydes and features broad substrate scope, mild conditions, and operational simplicity. Moreover, gram-scale product preparation and application of the title protocol in late-stage functionalization of pharmaceutical molecules are accomplished.
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Affiliation(s)
- Lin Tang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Fengjuan Jia
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Lufang Zhang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Taijun Wu
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Xinmeng Wei
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Lingyun Zheng
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Qiuju Zhou
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan 464000, China
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2
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Ye S, Zhuang C, Lv J, Zhang C, Chen Q, Wu Z, Wu J, Xia H. A three-component reaction of cyclobutanone oxime esters, sulfur dioxide and N-alkyl- N-methacryloyl benzamides. Org Biomol Chem 2023; 21:9021-9028. [PMID: 37927060 DOI: 10.1039/d3ob01439h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
A three-component reaction of cyclobutanone oxime esters, DABCO·(SO2)2 and N-alkyl-N-methacryloyl benzamides is described. This reaction proceeds without the addition of any oxidant or transition metal, affording sulfonyl-containing isoquinoline-1,3-(2H,4H)-diones in moderate to good yields. Various functional groups are tolerated well in this transformation. Mechanistic studies suggest that a radical pathway is involved, including β-scission, sulfur dioxide insertion, and intramolecular cyclization processes.
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Affiliation(s)
- Shengqing Ye
- Department of Biochemistry & Research Center of Clinical Pharmacy of the First Affiliated Hospital, Zhejiang University School of medicine, Hangzhou 310058, China.
- Taizhou Central Hospital (Taizhou University Hospital) & School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China.
- Liangzhu Laboratory, Zhejiang University Medical Center, 1369 West Wenyi Road, Hangzhou 311121, China
| | - Chen Zhuang
- Alberta Institute, Wenzhou Medical University, Wenzhou 325035, China
| | - Jiajing Lv
- Taizhou Central Hospital (Taizhou University Hospital) & School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China.
| | - Chao Zhang
- Taizhou Central Hospital (Taizhou University Hospital) & School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China.
| | - Qi Chen
- Taizhou Central Hospital (Taizhou University Hospital) & School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China.
| | - Zhiyuan Wu
- Taizhou Central Hospital (Taizhou University Hospital) & School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China.
| | - Jie Wu
- Taizhou Central Hospital (Taizhou University Hospital) & School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China.
| | - Hongguang Xia
- Department of Biochemistry & Research Center of Clinical Pharmacy of the First Affiliated Hospital, Zhejiang University School of medicine, Hangzhou 310058, China.
- Liangzhu Laboratory, Zhejiang University Medical Center, 1369 West Wenyi Road, Hangzhou 311121, China
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3
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Su Q, Gao H, Qin G, Jiang Y, Xiao T. Controlled Synthesis of α-CF 2H or α-CF 2Cl Styrenes from the Same Precursors: Dehydrazinative Hydrogenation or Chlorination of 3,3-Difluoroallyl Hydrazines. J Org Chem 2023. [PMID: 37262306 DOI: 10.1021/acs.joc.3c00355] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
By carefully choosing the reaction conditions, we have developed the controllable FeCl3- or CuCl2-mediated dehydrazinative hydrogenation or chlorination of 3,3-difluoroallyl hydrazines to access α-CF2H or α-CF2Cl styrenes. The current reaction provides for the first time a facile method for the direct and selective synthesis of α-CF2H and α-CF2Cl styrenes starting from the same precursors, which is easy to scale up and displays a broad substrate scope and good functional group tolerance. Moreover, product derivatization experiments demonstrated that the resulting α-CF2Cl styrenes are practical and versatile building blocks for the diversified synthesis of fluorinated molecules.
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Affiliation(s)
- Qinshuang Su
- Faculty of Science, Kunming University of Science and Technology, Jingming South Road 727, Chenggong District, Kunming, Yunnan 650500, P. R. China
| | - Haotian Gao
- Faculty of Science, Kunming University of Science and Technology, Jingming South Road 727, Chenggong District, Kunming, Yunnan 650500, P. R. China
| | - Guiping Qin
- Faculty of Science, Kunming University of Science and Technology, Jingming South Road 727, Chenggong District, Kunming, Yunnan 650500, P. R. China
| | - Yubo Jiang
- Faculty of Science, Kunming University of Science and Technology, Jingming South Road 727, Chenggong District, Kunming, Yunnan 650500, P. R. China
| | - Tiebo Xiao
- Faculty of Science, Kunming University of Science and Technology, Jingming South Road 727, Chenggong District, Kunming, Yunnan 650500, P. R. China
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4
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yao Z, Yang J, Luo ZL, Ye J, Han J, zhang X, Xu L, Wang P, Shi Q. Visible‐Light Photoredox‐Catalyzed Tandem One‐Pot Construction of C4‐Difluoroalkylated Phthalazin‐1(2H)‐ones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- zhen yao
- Renmin University of China CHINA
| | | | | | | | | | | | - Lijin Xu
- Renmin University of China CHINA
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5
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Widness JK, Enny DG, McFarlane-Connelly KS, Miedenbauer MT, Krauss TD, Weix DJ. CdS Quantum Dots as Potent Photoreductants for Organic Chemistry Enabled by Auger Processes. J Am Chem Soc 2022; 144:12229-12246. [PMID: 35772053 DOI: 10.1021/jacs.2c03235] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Strong reducing agents (<-2.0 V vs saturated calomel electrode (SCE)) enable a wide array of useful organic chemistry, but suffer from a variety of limitations. Stoichiometric metallic reductants such as alkali metals and SmI2 are commonly employed for these reactions; however, considerations including expense, ease of use, safety, and waste generation limit the practicality of these methods. Recent approaches utilizing energy from multiple photons or electron-primed photoredox catalysis have accessed reduction potentials equivalent to Li0 and shown how this enables selective transformations of aryl chlorides via aryl radicals. However, in some cases, low stability of catalytic intermediates can limit turnover numbers. Herein, we report the ability of CdS nanocrystal quantum dots (QDs) to function as strong photoreductants and present evidence that a highly reducing electron is generated from two consecutive photoexcitations of CdS QDs with intermediate reductive quenching. Mechanistic experiments suggest that Auger recombination, a photophysical phenomenon known to occur in photoexcited anionic QDs, generates transient thermally excited electrons to enable the observed reductions. Using blue light-emitting diodes (LEDs) and sacrificial amine reductants, aryl chlorides and phosphate esters with reduction potentials up to -3.4 V vs SCE are photoreductively cleaved to afford hydrodefunctionalized or functionalized products. In contrast to small-molecule catalysts, QDs are stable under these conditions and turnover numbers up to 47 500 have been achieved. These conditions can also effect other challenging reductions, such as tosylate protecting group removal from amines, debenzylation of benzyl-protected alcohols, and reductive ring opening of cyclopropane carboxylic acid derivatives.
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Affiliation(s)
- Jonas K Widness
- Department of Chemistry, UW─Madison, Madison, Wisconsin 53706, United States
| | - Daniel G Enny
- Department of Chemistry, UW─Madison, Madison, Wisconsin 53706, United States
| | | | - Mahilet T Miedenbauer
- Materials Science Program, University of Rochester, Rochester, New York 14627, United States
| | - Todd D Krauss
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States.,Materials Science Program, University of Rochester, Rochester, New York 14627, United States.,Institute of Optics, University of Rochester, Rochester, New York 14627, United States
| | - Daniel J Weix
- Department of Chemistry, UW─Madison, Madison, Wisconsin 53706, United States
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6
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Hu Q, Yu X, Gong S, Chen X. Nanomaterial catalysts for organic photoredox catalysis-mechanistic perspective. NANOSCALE 2021; 13:18044-18053. [PMID: 34718365 DOI: 10.1039/d1nr05474k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Solar energy conversions play a vital role in the renewable energy industry. In recent years, photoredox organic transformations have been explored as an alternative way to use solar energy. Catalysts for such photocatalytic systems have evolved from homogeneous metal complexes to heterogeneous nanomaterials over the past few decades. Herein, three important carrier transfer mechanisms are presented, including charge transfer, energy transfer and hot carrier transfer. Several models established by researchers to understand the catalytic reaction mechanisms are also illustrated, which promote the reaction system design based on theoretical studies. New strategies are introduced in order to enhance catalytic efficiency for future prospects.
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Affiliation(s)
- Qiushi Hu
- Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.
| | - Xuemeng Yu
- Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.
| | - Shaokuan Gong
- Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.
| | - Xihan Chen
- Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.
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7
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Yuan Y, Zhang S, Dong W, Wu F, Xie X, Zhang Z. Visible‐Light‐Induced Radical Cascade Cyclization of
o‐
Diisocyanoarenes: Synthesis of Diethyl Benzo[
a
]phenazine‐6,6(5
H
)‐Dicarboxylate. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yao Yuan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 People's Republic of China
| | - Si‐Yuan Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 People's Republic of China
| | - Wu‐Heng Dong
- Medicine Center Guangxi University of Science and Technology Guangxi Liuzhou 545006 People's Republic of China
- Guangxi Key Laboratory of Green Processing of Sugar Resources Guangxi Liuzhou 545006 People's Republic of China
| | - Feng Wu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 People's Republic of China
| | - Xiao‐Min Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 People's Republic of China
| | - Zhao‐Guo Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 People's Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 People's Republic of China
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8
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Yuan Y, Jin N, Saghy P, Dube L, Zhu H, Chen O. Quantum Dot Photocatalysts for Organic Transformations. J Phys Chem Lett 2021; 12:7180-7193. [PMID: 34309389 DOI: 10.1021/acs.jpclett.1c01717] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Quantum dots (QDs) with tunable photo-optical properties and colloidal nature are ideal for a wide range of photocatalytic reactions. In particular, QD photocatalysts for organic transformations can provide new and effective synthetic routes to high value-added molecules under mild conditions. In this Perspective, we discuss the advances of employing QDs for visible-light-driven organic transformations categorized into net reductive reactions, net oxidative reactions, and redox neutral reactions. We then provide our outlook for potential future directions in the field: nanostructure engineering to improve charge separation efficiencies, ligand shell engineering to optimize overall catalyst performance, in situ comprehensive studies to delineate underlying reaction mechanisms, and laboratory automation with the assistance of modern computing techniques to revolutionize the reaction optimization process.
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Affiliation(s)
- Yucheng Yuan
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Na Jin
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Peter Saghy
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Lacie Dube
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Hua Zhu
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Ou Chen
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
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9
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Xu L, Zhang SZ, Li W, Zhang ZH. Visible-Light-Mediated Oxidative Amidation of Aldehydes by Using Magnetic CdS Quantum Dots as a Photocatalyst. Chemistry 2021; 27:5483-5491. [PMID: 33403733 DOI: 10.1002/chem.202005138] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/01/2021] [Indexed: 12/20/2022]
Abstract
A magnetic CdS quantum dot (Fe3 O4 /polydopamine (PDA)/CdS) was synthesized through a facile and convenient method from inexpensive starting materials. Characterization of the prepared catalyst was performed by means of FTIR spectroscopy, XRD, SEM, TEM, energy-dispersive X-ray spectroscopy, and vibrating-sample magnetometer techniques. Fe3 O4 /PDA/CdS was found to be a highly active photocatalyst for the amidation of aromatic aldehydes by using air as a clean oxidant under mild conditions. The photocatalyst can be recovered by magnetic separation and successfully reused for five cycles without considerable loss of its catalytic activity.
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Affiliation(s)
- Ling Xu
- Hebei Key Laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang, 050024, P.R. China
| | - Shuai-Zheng Zhang
- Hebei Key Laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang, 050024, P.R. China
| | - Wei Li
- Hebei Key Laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang, 050024, P.R. China
| | - Zhan-Hui Zhang
- Hebei Key Laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang, 050024, P.R. China
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10
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Abstract
Colloidal semiconductor quantum dots (QDs) have been proven to be excellent photocatalysts due to their high photostability, large extinction coefficients, and tunable optoelectrical properties, and have attracted extensive attention by synthetic chemists. These excellent properties demonstrate its promise in the field of photocatalysis. In this review, we summarize the recent application of QDs as homogeneous catalysts in various photocatalytic organic reactions. These meaningful works in organic transformations show the unique catalytic activity of quantum dots, which are different from other semiconductors.
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11
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Xi ZW, Yang L, Wang DY, Feng CW, Qin Y, Shen YM, Pu C, Peng X. Visible Light Induced Reduction and Pinacol Coupling of Aldehydes and Ketones Catalyzed by Core/Shell Quantum Dots. J Org Chem 2021; 86:2474-2488. [PMID: 33415975 DOI: 10.1021/acs.joc.0c02627] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present an efficient and versatile visible light-driven methodology to transform aryl aldehydes and ketones chemoselectively either to alcohols or to pinacol products with CdSe/CdS core/shell quantum dots as photocatalysts. Thiophenols were used as proton and hydrogen atom donors and as hole traps for the excited quantum dots (QDs) in these reactions. The two products can be switched from one to the other simply by changing the amount of thiophenol in the reaction system. The core/shell QD catalysts are highly efficient with a turn over number (TON) larger than 4 × 104 and 4 × 105 for the reduction to alcohol and pinacol formation, respectively, and are very stable so that they can be recycled for at least 10 times in the reactions without significant loss of catalytic activity. The additional advantages of this method include good functional group tolerance, mild reaction conditions, the allowance of selectively reducing aldehydes in the presence of ketones, and easiness for large scale reactions. Reaction mechanisms were studied by quenching experiments and a radical capture experiment, and the reasons for the switchover of the reaction pathways upon the change of reaction conditions are provided.
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Affiliation(s)
- Zi-Wei Xi
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Lei Yang
- Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, PR China
| | - Dan-Yan Wang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Chuan-Wei Feng
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Yufeng Qin
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, PR China
| | - Yong-Miao Shen
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Chaodan Pu
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, PR China
| | - Xiaogang Peng
- Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, PR China
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12
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Ma X, Song Q. Recent progress on selective deconstructive modes of halodifluoromethyl and trifluoromethyl-containing reagents. Chem Soc Rev 2020; 49:9197-9219. [PMID: 33146196 DOI: 10.1039/d0cs00604a] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Halodifluoromethyl and trifluoromethyl-containing compounds are widely employed in organic chemistry, pharmaceuticals and materials science. Therefore, their applications and transformations have received significant attention during the past few decades. The single, double, triple and quadruple cleavage of halodifluoromethyl compounds and various deconstructive modes of trifluoromethyl-containing compounds could generate a variety of synthons to prepare more valuable products. Herein, we summarize the most significant achievements in this field with an intriguing focus on results from the last decade.
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Affiliation(s)
- Xingxing Ma
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University Fuzhou, Fujian, 350108, China
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13
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Yuan Y, Zhu H, Hills-Kimball K, Cai T, Shi W, Wei Z, Yang H, Candler Y, Wang P, He J, Chen O. Stereoselective C-C Oxidative Coupling Reactions Photocatalyzed by Zwitterionic Ligand Capped CsPbBr 3 Perovskite Quantum Dots. Angew Chem Int Ed Engl 2020; 59:22563-22569. [PMID: 32852841 DOI: 10.1002/anie.202007520] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/12/2020] [Indexed: 01/27/2023]
Abstract
Semiconductor quantum dots (QDs) have attracted tremendous attention in the field of photocatalysis, owing to their superior optoelectronic properties for photocatalytic reactions, including high absorption coefficients and long photogenerated carrier lifetimes. Herein, by choosing 2-(3,4-dimethoxyphenyl)-3-oxobutanenitrile as a model substrate, we demonstrate that the stereoselective (>99 %) C-C oxidative coupling reaction can be realized with a high product yield (99 %) using zwitterionic ligand capped CsPbBr3 perovskite QDs under visible light illumination. The reaction can be generalized to different starting materials with various substituents on the phenyl ring and varied functional moieties, producing stereoselective dl-isomers. A radical mediated reaction pathway has been proposed. Our study provides a new way of stereoselective C-C oxidative coupling via a photocatalytic means using specially designed perovskite QDs.
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Affiliation(s)
- Yucheng Yuan
- Department of Chemistry, Brown University, 324 Brook St., Providence, RI, 02912, USA
| | - Hua Zhu
- Department of Chemistry, Brown University, 324 Brook St., Providence, RI, 02912, USA
| | - Katie Hills-Kimball
- Department of Chemistry, Brown University, 324 Brook St., Providence, RI, 02912, USA
| | - Tong Cai
- Department of Chemistry, Brown University, 324 Brook St., Providence, RI, 02912, USA
| | - Wenwu Shi
- Department of Chemistry, Brown University, 324 Brook St., Providence, RI, 02912, USA
| | - Zichao Wei
- Department of Chemistry, University of Connecticut, 55 North Eagleville Rd., Storrs, CT, 06269, USA
| | - Hanjun Yang
- Department of Chemistry, Brown University, 324 Brook St., Providence, RI, 02912, USA
| | - Yolanda Candler
- Department of Chemistry, Brown University, 324 Brook St., Providence, RI, 02912, USA
| | - Ping Wang
- Department of Chemistry, Brown University, 324 Brook St., Providence, RI, 02912, USA.,State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, P.R.China
| | - Jie He
- Department of Chemistry, University of Connecticut, 55 North Eagleville Rd., Storrs, CT, 06269, USA
| | - Ou Chen
- Department of Chemistry, Brown University, 324 Brook St., Providence, RI, 02912, USA
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14
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Yuan Y, Zhu H, Hills‐Kimball K, Cai T, Shi W, Wei Z, Yang H, Candler Y, Wang P, He J, Chen O. Stereoselective C−C Oxidative Coupling Reactions Photocatalyzed by Zwitterionic Ligand Capped CsPbBr
3
Perovskite Quantum Dots. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007520] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yucheng Yuan
- Department of Chemistry Brown University 324 Brook St. Providence RI 02912 USA
| | - Hua Zhu
- Department of Chemistry Brown University 324 Brook St. Providence RI 02912 USA
| | - Katie Hills‐Kimball
- Department of Chemistry Brown University 324 Brook St. Providence RI 02912 USA
| | - Tong Cai
- Department of Chemistry Brown University 324 Brook St. Providence RI 02912 USA
| | - Wenwu Shi
- Department of Chemistry Brown University 324 Brook St. Providence RI 02912 USA
| | - Zichao Wei
- Department of Chemistry University of Connecticut 55 North Eagleville Rd. Storrs CT 06269 USA
| | - Hanjun Yang
- Department of Chemistry Brown University 324 Brook St. Providence RI 02912 USA
| | - Yolanda Candler
- Department of Chemistry Brown University 324 Brook St. Providence RI 02912 USA
| | - Ping Wang
- Department of Chemistry Brown University 324 Brook St. Providence RI 02912 USA
- State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 Jilin P.R.China
| | - Jie He
- Department of Chemistry University of Connecticut 55 North Eagleville Rd. Storrs CT 06269 USA
| | - Ou Chen
- Department of Chemistry Brown University 324 Brook St. Providence RI 02912 USA
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15
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Bao K, Wei J, Yan H, Sheng R. Visible-light promoted three-component tandem reaction to synthesize difluoromethylated oxazolidin-2-imine. RSC Adv 2020; 10:25947-25951. [PMID: 35518621 PMCID: PMC9055360 DOI: 10.1039/d0ra04729e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 06/25/2020] [Indexed: 01/19/2023] Open
Abstract
An effective synthetic method to achieve difluoromethylated oxazolidin-2-imine has been developed via visible-light promoted three-component tandem reaction of aryl allylamines, 2-BTSO2CF2H (BT = Benzothiazole) and isocyanates. This method features mild reaction conditions and good functional group tolerance, and the reaction mechanism was confirmed by experiments and interpreted by quantum chemical calculations.
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Affiliation(s)
- Kun Bao
- College of Pharmaceutical Sciences, Zhejiang University Hangzhou 310058 People's Republic of China .,Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Jun Wei
- College of Pharmaceutical Sciences, Zhejiang University Hangzhou 310058 People's Republic of China
| | - Huihui Yan
- College of Pharmaceutical Sciences, Zhejiang University Hangzhou 310058 People's Republic of China .,Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Rong Sheng
- College of Pharmaceutical Sciences, Zhejiang University Hangzhou 310058 People's Republic of China
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16
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Xu J, Yang Z, Hua J, Lin Y, Bian M, Li Y, Liu C, He W, Fang Z, Guo K. The continuous-flow electrosynthesis of 4-(sulfonylmethyl)isoquinoline-1,3(2H,4H)-diones from N-alkyl-N-methacryloyl benzamides under metal-free and oxidant-free conditions. Org Chem Front 2020. [DOI: 10.1039/d0qo00909a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An efficient and green electrochemical continuous flow approach has been developed for the synthesis of 4-(sulfonylmethyl)isoquinoline-1,3(2H,4H)-diones through sulfonylation of alkenes under metal-free and oxidant-free conditions.
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Affiliation(s)
- Jia Xu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zhao Yang
- College of Engineering
- China Pharmaceutical University
- Nanjing 210003
- China
| | - Jiawei Hua
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Yang Lin
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Mixue Bian
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Yuguang Li
- Institute of Nanjing Advanced Biomaterials &Processing Equipment
- Nanjing 211200
- China
| | - Chengkou Liu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Wei He
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
- State Key Laboratory of Materials-Oriented Chemical Engineering
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17
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Dong DQ, Yang H, Shi JL, Si WJ, Wang ZL, Xu XM. Promising reagents for difluoroalkylation. Org Chem Front 2020. [DOI: 10.1039/d0qo00567c] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review describes recent advances in difluoroalkylation reactions using different substrates.
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Affiliation(s)
- Dao-Qing Dong
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Huan Yang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Jun-Lian Shi
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Wen-Jia Si
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Zu-Li Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Xin-Ming Xu
- College of Chemistry and Chemical Engineering
- Yantai University
- Yantai 264005
- China
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18
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Liu X, Sun K, Chen X, Wang W, Liu Y, Li Q, Peng Y, Qu L, Yu B. Visible‐Light‐Promoted Transition‐Metal‐Free Approach toward Phosphoryl‐Substituted Dihydroisoquinolones
via
Cascade Phosphorylation/Cyclization of
N
‐Allylbenzamides. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900544] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiao‐Ceng Liu
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 People's Republic of China
| | - Kai Sun
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 People's Republic of China
| | - Xiao‐Lan Chen
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 People's Republic of China
| | - Wen‐Fei Wang
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 People's Republic of China
| | - Yan Liu
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 People's Republic of China
| | - Qian‐Li Li
- School of Chemistry & Chemical EngineeringLiaocheng University, Liaocheng Shandong 252059 People's Republic of China
| | - Yu‐Yu Peng
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and TransportationChangsha University of Science and Technology Changsha 410114 People's Republic of China
| | - Ling‐Bo Qu
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 People's Republic of China
| | - Bing Yu
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 People's Republic of China
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and TransportationChangsha University of Science and Technology Changsha 410114 People's Republic of China
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19
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Xu ZW, Xu WY, Pei XJ, Tang F, Feng YS. An efficient method for the N-formylation of amines under catalyst- and additive-free conditions. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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20
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Liu XC, Sun K, Lv QY, Chen XL, Sun YQ, Peng YY, Qu LB, Yu B. Silver-mediated radical phosphorylation/cyclization of N-allylbenzamides to access phosphoryl-substituted dihydroisoquinolones. NEW J CHEM 2019. [DOI: 10.1039/c9nj02833a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A silver-mediated phosphorylation/cyclization of N-allylbenzamides with phosphine oxides for the synthesis of phosphoryl-substituted dihydroisoquinolones was developed.
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Affiliation(s)
- Xiao-Ceng Liu
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Kai Sun
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Qi-Yan Lv
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
- Henan Nonferrous Metals Geological Exploration Institute
| | - Xiao-Lan Chen
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Yuan-Qiang Sun
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Yu-Yu Peng
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- Changsha University of Science & Technology
- Changsha 410114
- China
| | - Ling-Bo Qu
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Bing Yu
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
- Henan Nonferrous Metals Geological Exploration Institute
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