1
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Liu T, Tang Y, Guo J, Hang Y, Zhang K, Zheng C, Zhong W, Song D, Ling F. Paired Electrocatalysis-Enabled Cross Coupling of Sulfinamides with Olefins toward the Synthesis of Vinyl Sulfoximines. Org Lett 2024. [PMID: 39356466 DOI: 10.1021/acs.orglett.4c02859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2024]
Abstract
We present here a novel paired electrocatalysis-enabled convenient synthesis of the (E)-vinyl sulfoximines through the cross-coupling reaction of sulfinamides and olefins. This protocol showed a broad substrate scope and excellent E selectivity of products under metal- and oxidant-free conditions. A preliminary mechanistic study suggested that fluorinated sulfoximine generated from anodic oxidation of sulfinamide was the key intermediate that was then converted into the sulfonimidoyl radical at the cathode with the help of DBU in this reaction.
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Affiliation(s)
- Tao Liu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Yan Tang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Jiyuan Guo
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Yunfei Hang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Kali Zhang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Changdi Zheng
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Weihui Zhong
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Dingguo Song
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Fei Ling
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
- Zhejiang Hisoar Pharmaceutical Company, Ltd., Taizhou 318000, People's Republic of China
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2
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Tu JL, Huang B. Direct C(sp 3)-H functionalization with aryl and alkyl radicals as intermolecular hydrogen atom transfer (HAT) agents. Chem Commun (Camb) 2024. [PMID: 39268687 DOI: 10.1039/d4cc03383c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/17/2024]
Abstract
Recent years have witnessed the emergence of direct intermolecular C(sp3)-H bond functionalization using in situ generated aryl/alkyl radicals as a unique class of hydrogen atom transfer (HAT) agents. A variety of precursors have been exploited to produce these radical HAT agents under photocatalytic, electrochemical or thermal conditions. To date, viable aryl radical precursors have included aryl diazonium salts or aryl azosulfones, diaryliodonium salts, O-benzoyl oximes, aryl sulfonium salts, aryl thioesters, and aryl halides; and applicable alkyl radical sources have included tetrahalogenated methanes (e.g., CCl3Br, CBr4 and CF3I), N-hydroxyphthalimide esters, alkyl bromides, and acetic acid. This review summarizes the current advances in direct intermolecular C(sp3)-H functionalization through key HAT events with in situ generated aryl/alkyl radicals and categorizes the procedures by the specific radical precursors applied. With an emphasis on the reaction conditions, mechanisms and representative substrate scopes of these protocols, this review aims to demonstrate the current trends and future challenges of this emerging field.
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Affiliation(s)
- Jia-Lin Tu
- Faculty of Arts and Sciences, Beijing Normal University, Zhuhai 519085, China.
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Binbin Huang
- Faculty of Arts and Sciences, Beijing Normal University, Zhuhai 519085, China.
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3
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Yang ZX, Ding LC, Yang GH, Wang D, Shi L, Li Y, Liang D. Electrochemical Sulfonylation/Cyclization of N-Alkenylacrylamides with Sodium Sulfinates or Sulfonyl Hydrazides. J Org Chem 2024; 89:10660-10677. [PMID: 39024340 DOI: 10.1021/acs.joc.4c00892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Two general protocols for the regioselective electrochemically enabled sulfonylation cyclization of N-alkenylacrylamides with sodium sulfinates or sulfonyl hydrazides were described. These methods were carried out under mild, chemical oxidant-free, and transition-metal-free conditions with a broad substrate scope and good functional group tolerance to provide sulfonyl-containing 4-pyrrolin-2-ones, which is readily scalable to the gram scale.
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Affiliation(s)
- Zhi-Xian Yang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, China
| | - Lu-Cai Ding
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, China
| | - Gui-Hong Yang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, China
| | - Dongyin Wang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, China
| | - Lou Shi
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, China
| | - Yanni Li
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, China
| | - Deqiang Liang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, China
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4
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Roy M, Sardar B, Mallick I, Srimani D. Generation of alkyl and acyl radicals by visible-light photoredox catalysis: direct activation of C-O bonds in organic transformations. Beilstein J Org Chem 2024; 20:1348-1375. [PMID: 38887583 PMCID: PMC11181251 DOI: 10.3762/bjoc.20.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 05/27/2024] [Indexed: 06/20/2024] Open
Abstract
Alkyl and acyl radicals play a critical role in the advancement of chemical synthesis. The generation of acyl and alkyl radicals by activation of C-O bonds using visible-light photoredox catalysis offers a mild and environmentally benign approach to useful chemical transformations. Alcohols, carboxylic acids, anhydrides, xanthates, oxalates, N-phthalimides, and thiocarbonates are some examples of alkyl and acyl precursors that can produce reactive radicals by homolysis of the C-O bond. These radicals can then go through a variety of transformations that are beneficial for the construction of synthetic materials that are otherwise difficult to access. This study summarizes current developments in the use of organic photocatalysts, transition-metal photoredox catalysts, and metallaphotocatalysts to produce acyl and alkyl radicals driven by visible light.
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Affiliation(s)
- Mithu Roy
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
| | - Bitan Sardar
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
| | - Itu Mallick
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
| | - Dipankar Srimani
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
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5
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Das A, Justin Thomas KR. Generation and Application of Aryl Radicals Under Photoinduced Conditions. Chemistry 2024; 30:e202400193. [PMID: 38546345 DOI: 10.1002/chem.202400193] [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: 01/16/2024] [Indexed: 04/26/2024]
Abstract
Photoinduced aryl radical generation is a powerful strategy in organic synthesis that facilitates the formation of diverse carbon-carbon and carbon-heteroatom bonds. The synthetic applications of photoinduced aryl radical formation in the synthesis of complex organic compounds, including natural products, physiologically significant molecules, and functional materials, have received immense attention. An overview of current developments in photoinduced aryl radical production methods and their uses in organic synthesis is given in this article. A generalized idea of how to choose the reagents and approach for the generation of aryl radicals is described, along with photoinduced techniques and associated mechanistic insights. Overall, this article offers a critical assessment of the mechanistic results as well as the selection of reaction parameters for specific reagents in the context of radical cascades, cross-coupling reactions, aryl radical functionalization, and selective C-H functionalization of aryl substrates.
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Affiliation(s)
- Anupam Das
- Organic Materials Laboratory, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - K R Justin Thomas
- Organic Materials Laboratory, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
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6
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Li P, Tu JL, Hu AM, Guo L, Yang C, Xia W. Photoinduced decatungstate-catalyzed C(sp 3)-H thioetherification by sulfinate salts. Org Biomol Chem 2024; 22:3420-3424. [PMID: 38619101 DOI: 10.1039/d4ob00394b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Thiols and thioesters play crucial roles in pharmaceuticals, biology, and material science as essential organosulfur compounds. Leveraging readily available and cost-effective inert alkanes through direct thioetherification holds promise for yielding high-value-added products. Herein, we present a photoinduced strategy for sulfur-containing modification of inert alkanes utilizing decatungstate as hydrogen atom transfer reagent, offering a straightforward and practical approach for synthesizing thioethers and thioesters.
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Affiliation(s)
- Pengcheng Li
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Jia-Lin Tu
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Ao-Men Hu
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Lin Guo
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Chao Yang
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Wujiong Xia
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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7
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Tang LJ, Zhu WC, Deng HH, Jiang YF, Liu XY, Rao W, Shen SS, Song P, Wang SY. Visible Light-Catalyzed Reactions of Polysulfide (DBSPS) with Aryldiazonium. Chem Asian J 2024:e202400086. [PMID: 38676953 DOI: 10.1002/asia.202400086] [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: 01/25/2024] [Revised: 03/22/2024] [Indexed: 04/29/2024]
Abstract
A visible light-catalyzed radical coupling reaction of polysulfide reagents with aryldiazonium was developed, which gave thiosulfonates under mild conditions. In this reaction, the thiosulfonates were isolated in good yields with a broad tolerance to functional groups. And the synthesis of diaryl monosulfides were achieved through a step-by-step reaction of two molecular aryldiazonium with DBSPS, where the sulfur source was provided by DBSPS. It was worth noting that the reaction of this monosulfides could also be achieved by a one pot two-step process. The described polysulfide reagents were able to produce three new radicals: sulfonyl radicals, sulfur-sulfonyl radicals and sulfur-sulfur-sulfonyl radicals.
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Affiliation(s)
- Ling-Juan Tang
- Analysis and Testing Center, Nantong University, No.1 Nanhai Road, Nantong, 226019, People's Republic of China
| | - Wei-Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215000, People's Republic of China
| | - Hong-He Deng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215000, People's Republic of China
| | - Yi-Fan Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215000, People's Republic of China
| | - Xin-Yu Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215000, People's Republic of China
| | - Weidong Rao
- Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing, 210000, People's Republic of China
| | - Shu-Su Shen
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, 1 Kerui Road, Suzhou, 215000, People's Republic of China
| | - Ping Song
- Analysis and Testing Center, Soochow University, 199 Ren'ai Road, Suzhou, 215000, People's Republic of China
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215000, People's Republic of China
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8
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Singh PP, Sinha S, Gahtori P, Tivari S, Srivastava V. Recent advances of decatungstate photocatalyst in HAT process. Org Biomol Chem 2024; 22:2523-2538. [PMID: 38456306 DOI: 10.1039/d4ob00213j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
The decatungstate anion (W10O324-) appears to exhibit especially interesting properties as a photocatalyst. Because of its unique photocatalytic properties, it is now recognised as a promising tool in organic chemistry. This study examines recent advances in decatungstate chemistry, primarily concerned with synthetic and, to some degree, mechanistic challenges. In this short review we have selected to give a number of illustrative examples that demonstrate the various applications of decatungstate in the hydrogen atom transfer (HAT) process.
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Affiliation(s)
- Praveen P Singh
- Department of Chemistry, United College of Engineering & Research, Prayagraj, U.P.-211010, India.
| | - Surabhi Sinha
- Department of Chemistry, United College of Engineering & Research, Prayagraj, U.P.-211010, India.
| | - Prashant Gahtori
- School of Pharmacy, Graphic Era Hill University, Dehradun, 248002 Uttarakhand, India
| | - Shraddha Tivari
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj, U.P.-211002, India.
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj, U.P.-211002, India.
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9
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Dang M, Jia R, Tan K, Hao D, Yang W, Zhou CY, Guo Z. Heterogeneous Photocatalytic Ring Expansion of Cyclic Ketones for the Construction of Medium-Sized Lactams. J Org Chem 2024; 89:4031-4036. [PMID: 38447165 DOI: 10.1021/acs.joc.3c02899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Construction of medium-sized ring compounds remains challenging in synthetic chemistry. Herein, we describe the synthesis of medium-sized lactams via a photoinduced ring expansion of benzo-fused cyclic ketones using graphitic carbon nitride (g-C3N4) as a photocatalyst. The ring expansion protocol provided an efficient access to 8-10-membered lactams in good yields and displayed good tolerance to a range of functional groups. The mechanism studies revealed that the photochemical reaction proceeds via an intermediary of a nitrogen radical, which is generated through an oxidative hydrogen atom transfer (HAT) process.
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Affiliation(s)
- Mengzhen Dang
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People's Republic of China
| | - Ruizhi Jia
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People's Republic of China
| | - Kai Tan
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, People's Republic of China
| | - Danyang Hao
- College of Engineering, Westlake University, Hangzhou, Zhejiang 310012, People's Republic of China
| | - Wenjing Yang
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People's Republic of China
| | - Cong-Ying Zhou
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, People's Republic of China
| | - Zhen Guo
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People's Republic of China
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10
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Liang D, Zhou QQ, Xuan J. Multiple-cycle photochemical cascade reactions. Org Biomol Chem 2024; 22:2156-2174. [PMID: 38385507 DOI: 10.1039/d4ob00071d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Cascade reactions represent an efficient and economical synthetic approach, enabling the rapid synthesis of a wide array of structurally complex organic compounds. These compounds, previously inaccessible, can now be synthesized in a remarkably limited number of steps. Concurrently, the photochemical reactions of organic molecules have gained prominence as a potent strategy for accessing a diverse range of radical species and intermediates. This is achieved in a controlled manner under mild conditions. Owing to the relentless endeavors of chemists, significant strides have been made in the realm of photochemical cascade reactions. These advancements have facilitated the synthesis of novel molecular structures with high complexity, structures that are typically challenging to generate under thermal conditions. In this review, we comprehensively summarize and underscore the recent pivotal advancements in visible-light-induced cascade reactions. Our focus is on the elucidation of multiple photochemical catalytic cycles, emphasizing the catalytic activation modes and the types of reactions involved.
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Affiliation(s)
- Dong Liang
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China
| | - Quan-Quan Zhou
- Institute of Advanced Materials, Jiangxi Normal University, Nanchang 330022, China.
| | - Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China.
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11
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Beg MZ, Singh PK, Singh PP, Srivastava M, Srivastava V. Metal-free visible light mediated direct C-H amination of benzoxazole with secondary amines. Mol Divers 2024; 28:61-71. [PMID: 36609739 DOI: 10.1007/s11030-022-10595-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 12/26/2022] [Indexed: 01/09/2023]
Abstract
An efficient visible light mediated, eosin Y catalyzed direct C-H oxidative amination of benzoxazoles with secondary amines has been developed, which providing a straightforward, green, and environmentally benign access to a wide variety of substituted benzoxazole-2-amines under mild reaction conditions. The biological studies such as drug-likeness and molecular docking are also carried out on the molecule.
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Affiliation(s)
- Mohd Zaheeruddin Beg
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj, 211002, India
| | - Pravin K Singh
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj, 211002, India
| | - Praveen P Singh
- Department of Chemistry, United College of Engineering & Research, Naini, Prayagraj, 211010, India
| | - Manish Srivastava
- Department of Chemistry, University of Allahabad, Prayagraj, 211002, India
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj, 211002, India.
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12
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Wang CS, Xu Y, Wang SP, Zheng CL, Wang G, Sun Q. Recent advances in selective mono-/dichalcogenation and exclusive dichalcogenation of C(sp 2)-H and C(sp 3)-H bonds. Org Biomol Chem 2024; 22:645-681. [PMID: 38180073 DOI: 10.1039/d3ob01847d] [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
Organochalcogen compounds are prevalent in numerous natural products, pharmaceuticals, agrochemicals, polymers, biological molecules and synthetic intermediates. Direct chalcogenation of C-H bonds has evolved as a step- and atom-economical method for the synthesis of chalcogen-bearing compounds. Nevertheless, direct C-H chalcogenation severely lags behind C-C, C-N and C-O bond formations. Moreover, compared with the C-H monochalcogenation, reports of selective mono-/dichalcogenation and exclusive dichalcogenation of C-H bonds are relatively scarce. The past decade has witnessed significant advancements in selective mono-/dichalcogenation and exclusive dichalcogenation of various C(sp2)-H and C(sp3)-H bonds via transition-metal-catalyzed/mediated, photocatalytic, electrochemical or metal-free approaches. In light of the significance of both mono- and dichalcogen-containing compounds in various fields of chemical science and the critical issue of chemoselectivity in organic synthesis, the present review systematically summarizes the advances in these research fields, with a special focus on elucidating scopes and mechanistic aspects. Moreover, the synthetic limitations, applications of some of these processes, the current challenges and our own perspectives on these highly active research fields are also discussed. Based on the substrate types and C-H bonds being chalcogenated, the present review is organized into four sections: (1) transition-metal-catalyzed/mediated chelation-assisted selective C-H mono-/dichalcogenation or exclusive dichalcogenation of (hetero)arenes; (2) directing group-free selective C-H mono-/dichalcogenation or exclusive dichalcogenation of electron-rich (hetero)arenes; (3) C(sp3)-H dichalcogenation; (4) dichalcogenation of both C(sp2)-H and C(sp3)-H bonds. We believe the present review will serve as an invaluable resource for future innovations and drug discovery.
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Affiliation(s)
- Chang-Sheng Wang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, PR China.
| | - Yuan Xu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 637371, Singapore.
| | - Shao-Peng Wang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, PR China.
| | - Chun-Ling Zheng
- School of Food Science and Light Industry, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, PR China.
| | - Guowei Wang
- School of Food Science and Light Industry, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, PR China.
| | - Qiao Sun
- School of Food Science and Light Industry, Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816, PR China.
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13
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Singh PP, Sinha S, Nainwal P, Singh PK, Srivastava V. Novel applications of photobiocatalysts in chemical transformations. RSC Adv 2024; 14:2590-2601. [PMID: 38226143 PMCID: PMC10788709 DOI: 10.1039/d3ra07371h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 12/28/2023] [Indexed: 01/17/2024] Open
Abstract
Photocatalysis has proven to be an effective approach for the production of reactive intermediates under moderate reaction conditions. The possibility for the green synthesis of high-value compounds using the synergy of photocatalysis and biocatalysis, benefiting from the selectivity of enzymes and the reactivity of photocatalysts, has drawn growing interest. Mechanistic investigations, substrate analyses, and photobiocatalytic chemical transformations will all be incorporated in this review. We seek to shed light on upcoming synthetic opportunities in the field by precisely describing mechanistically unique techniques in photobiocatalytic chemistry.
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Affiliation(s)
- Praveen P Singh
- Department of Chemistry, United College of Engineering & Research Prayagraj U. P.-211010 India
| | - Surabhi Sinha
- Department of Chemistry, United College of Engineering & Research Prayagraj U. P.-211010 India
| | - Pankaj Nainwal
- School of Pharmacy, Graphic Era Hill University Dehradun Uttarakhand India
| | - Pravin K Singh
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj U. P.-211002 India
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj U. P.-211002 India
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14
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Donnier-Valentin L, Kassamba S, Legros J, Fressigné C, Vuluga D, Brown RCD, Linclau B, De Paolis M. Photoinduced Formation of Cubyl Aryl Thioethers and Synthesis of Monocubyl Analogue of Dapsone. Org Lett 2023. [PMID: 37991751 DOI: 10.1021/acs.orglett.3c03372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
1,4-Disubstituted cubyl aryl thioethers were generated from the corresponding iodocubanes and aryl thiolates upon UV irradiation in dimethyl sulfoxide at room temperature. This simple procedure was found to be compatible with a variety of substituted aryl thiolates. This finding paved the way to a synthesis of the monocubyl analogue of dapsone, a key molecule in the treatment of leprosy, also known as Hansen's disease, and of acne.
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Affiliation(s)
| | - Seydou Kassamba
- Normandie Univ, UNIROUEN, COBRA, INSA Rouen, CNRS, 76000 Rouen, France
| | - Julien Legros
- Normandie Univ, UNIROUEN, COBRA, INSA Rouen, CNRS, 76000 Rouen, France
| | | | - Daniela Vuluga
- INSA Rouen, PBS, UMR 6270, CNRS, 76801 Saint-Etienne-du-Rouvray, France
| | - Richard C D Brown
- Department of Chemistry, University of Southampton, Southampton SO17 1BJ, U.K
| | - Bruno Linclau
- Department of Organic and Molecular Chemistry, Ghent University, Krijgslaan 281-S4, 9000 Ghent, Belgium
| | - Michaël De Paolis
- Normandie Univ, UNIROUEN, COBRA, INSA Rouen, CNRS, 76000 Rouen, France
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15
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Ali H, Mahto B, Barhoi A, Hussain S. Visible light-driven photocatalytic thiol-ene/yne reactions using anisotropic 1D Bi 2S 3 nanorods: a green synthetic approach. NANOSCALE 2023; 15:14551-14563. [PMID: 37609951 DOI: 10.1039/d3nr02889e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Thiol-ene/yne click reactions play a significant role in creating carbon-sulfur (C-S) bonds, and there has been a growing interest in using visible-light photoredox catalysis for their formation. In this study, anisotropic 1D Bi2S3 nanorods were prepared using a simple polyol-assisted reflux method, and they were used as catalysts for the thiol-ene/yne click reactions under visible light irradiation. The developed protocol is highly compatible and tolerant to various substrates with excellent product yields. Also, thiol-ene and -yne reactions achieved maximum TONs of 93 and 95, respectively. Detailed mechanistic studies were conducted and supported by NMR studies, radical trapping utilizing TEMPO, and ESI-MS product analysis. The ability of Bi2S3 nanorods to catalyze thiol-ene/yne reactions is primarily due to the creation of photoexcited holes, which aid in the formation of thiyl radicals. This method can be scaled up to the gram-scale synthesis of benzyl styryl sulfide with an excellent chemical yield of 90%. The 1D Bi2S3 nanorods also demonstrated structural and morphological stability throughout five reaction cycles while maintaining a favorable photocatalytic activity. The developed methodology had the advantages of broad substrate scope, mild reaction conditions, scaled-up synthesis, and nonrequirement of free radical initiators.
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Affiliation(s)
- Haider Ali
- Department of Chemistry, Indian Institute of Technology Patna, Bihta, 801103, India.
| | - Bhagirath Mahto
- Department of Chemistry, Indian Institute of Technology Patna, Bihta, 801103, India.
| | - Ashok Barhoi
- Department of Chemistry, Indian Institute of Technology Patna, Bihta, 801103, India.
| | - Sahid Hussain
- Department of Chemistry, Indian Institute of Technology Patna, Bihta, 801103, India.
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16
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Rani P, Chahal S, Kumar R, Mayank, Kumar P, Negi A, Singh R, Kumar S, Kataria R, Joshi G, Sindhu J. Electro-organic synthesis of C-5 sulfenylated amino uracils: Optimization and exploring topoisomerase-I based anti-cancer profile. Bioorg Chem 2023; 138:106660. [PMID: 37320914 DOI: 10.1016/j.bioorg.2023.106660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/25/2023] [Accepted: 06/06/2023] [Indexed: 06/17/2023]
Abstract
Cancer is spreading worldwide and is one of the leading causes of death. The use of existing chemotherapeutic agents is frequently limited due to side effects. As a result, it is critical to investigate new agents for cancer treatment. In this context, we developed an electrochemical method for the synthesis of a series of thiol-linked pyrimidine derivatives (3a-3p) and explored their anti-cancer potential. The biological profile of the synthesized compounds was evaluated against breast (MDAMB-231 and MCF-7) and colorectal (HCT-116) cancer cell lines. 3b and 3d emerged to be the most potent agents, with IC50 values ranging between 0.98 to 2.45 µM. Target delineation studies followed by secondary anticancer parameters were evaluated for most potent compounds, 3b and 3d. The analysis revealed compounds possess DNA intercalation potential and selective inhibition towards human topoisomerase (hTopo1). The analysis was further corroborated by DNA binding studies and in silico-based molecular modeling studies that validated the intercalating binding mode between the compounds and the DNA.
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Affiliation(s)
- Payal Rani
- Department of Chemistry, COBS&H, CCS Haryana Agricultural University, Hisar 125004, India
| | - Sandhya Chahal
- Department of Chemistry, COBS&H, CCS Haryana Agricultural University, Hisar 125004, India
| | - Roshan Kumar
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda 151401, India
| | - Mayank
- Institut interdisciplinaire d'innovation technologique - 3IT USherbrooke, Sherbrooke, Quebec, Canada
| | - Parvin Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, India
| | - Arvind Negi
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo 02150, Finland
| | - Rajvir Singh
- Department of Chemistry, COBS&H, CCS Haryana Agricultural University, Hisar 125004, India
| | - Sudhir Kumar
- Department of Chemistry, COBS&H, CCS Haryana Agricultural University, Hisar 125004, India; Department of Bioinformatics and Computational Biology, College of Biotechnology, CCS Haryana Agricultural University, Hisar 125004, India
| | - Ramesh Kataria
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Gaurav Joshi
- Department of Pharmaceutical Science, Hemvati Nandan Bahuguna Garhwal (A Central) University, Srinagar-246174, Dist. Garhwal, (Uttarakhand), India; Department of Biotechnology, Graphic Era (Deemed to be University), Bell Road, Clement Town Dehradun, Uttarakhand- 248002.
| | - Jayant Sindhu
- Department of Chemistry, COBS&H, CCS Haryana Agricultural University, Hisar 125004, India.
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Mohamadpour F. 3DPAFIPN as a halogenated dicyanobenzene-based photosensitizer catalyzed gram-scale photosynthesis of pyrano[2,3-d]pyrimidine scaffolds. Sci Rep 2023; 13:13142. [PMID: 37573466 PMCID: PMC10423215 DOI: 10.1038/s41598-023-40360-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 08/09/2023] [Indexed: 08/14/2023] Open
Abstract
Utilizing the Knoevenagel-Michael tandem cyclocondensation reaction of barbituric acid/1,3-dimethylbarbituric acid, malononitrile, and aryl aldehydes, a sustainable methodology for the photosynthesis of pyrano[2,3-d]pyrimidine scaffolds has been devised. The present study expounds on the development of a green radical synthetic approach toward this class of compounds. In this study, a novel halogenated dicyanobenzene-based photosensitizer was utilized in an aqueous solution, exposed to air at room temperature, and activated by a blue LED as a renewable energy source for the purpose of generating energy. The primary aim of this endeavor is to employ a recently developed, easily obtainable, and affordably priced halogenated cyanoarene-based donor-acceptor (D-A). The 3DPAFIPN [2,4,6-tris(diphenylamino)-5-fluoroisophthalonitrile]} photocatalyst, as a thermally activated delayed fluorescence (TADF), is capable of inducing single electron transfer (SET) upon irradiation with visible light, thereby offering a facile and efficient approach with a high degree of effectiveness, energy efficiency, and eco-friendliness. The aforementioned phenomenon facilitates the exploration of the temporal changes that have occurred in the interactions between the surroundings and chemical constituents. The present study aimed to investigate the turnover number (TON) and turnover frequency (TOF) for pyrano[2,3-d]pyrimidine scaffolds. Additionally, it has been demonstrated that gram-scale cyclization is a viable method for utilization in industrial applications.
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18
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Singh PP, Singh J, Srivastava V. Visible-light acridinium-based organophotoredox catalysis in late-stage synthetic applications. RSC Adv 2023; 13:10958-10986. [PMID: 37033422 PMCID: PMC10077514 DOI: 10.1039/d3ra01364b] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 03/29/2023] [Indexed: 04/11/2023] Open
Abstract
The field of photoredox catalysis has been transformed by the use of organic photocatalysts, which give access to re-activities that were previously only possible with transition-metal photocatalysts. Recent advancements in the use of an acridinium photocatalyst in organic synthesis are covered in this review. Both the late-stage functionalization of biorelevant molecules and the activation of inert chemical bonds are explored, with an emphasis on their mechanistic features.
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Affiliation(s)
- Praveen P Singh
- Department of Chemistry, United College of Engineering & Research Naini Prayagraj 211010 India
| | - Jaya Singh
- Department of Chemistry, LRPG College Sahibabad Gaziabad Uttar Pradesh India
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj 211002 Uttar Pradesh India
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19
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Lighting Up the Organochalcogen Synthesis: A Concise Update of Recent Photocatalyzed Approaches. Catalysts 2023. [DOI: 10.3390/catal13030520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
This review describes the recent advances in photocatalyzed reactions to form new carbon–sulfur and carbon–selenium bonds. With a total of 136 references, of which 81 articles are presented, the authors introduce in five sections an updated picture of the state of the art in the light-promoted synthesis of organochalcogen compounds (from 2019 to present). The light-promoted synthesis of sulfides by direct sulfenylation of C–C π-bonds; synthesis of sulfones; the activation of Csp2–N bond in the formation of Csp2–S bonds; synthesis of thiol ester, thioether and thioacetal; and the synthesis of organoselenium compounds are discussed, with detailed reaction conditions and selected examples for each protocol.
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20
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Shi Z, Li R, Lan W, Wei H, Sheng S, Chen J. Visible-light-induced intramolecular C–S bond formation for practical synthesis of 2,5-disubstituted 1,3,4-thiadiazoles. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2149342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Zhaocheng Shi
- College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Ruohan Li
- College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Wenqing Lan
- College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Haishan Wei
- College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Shouri Sheng
- College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Junmin Chen
- College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, China
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21
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Singh PP, Sinha S, Pandey G, Srivastava V. Molybdenum disulfide (MoS 2) based photoredox catalysis in chemical transformations. RSC Adv 2022; 12:29826-29839. [PMID: 36321108 PMCID: PMC9578401 DOI: 10.1039/d2ra05695j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/11/2022] [Indexed: 11/15/2022] Open
Abstract
Photoredox catalysis has been explored for chemical reactions by irradiation of photoactive catalysts with visible light, under mild and environmentally benign conditions. Furthermore, this methodology permits the activation of abundant chemicals into valuable products through novel mechanisms that are otherwise inaccessible. In this context, MoS2 has drawn attention due to its excellent solar spectral response and its notable electrical, optical, mechanical and magnetic properties. MoS2 has a number of characteristic properties like tunable band gap, enhanced absorption of visible light, a layered structure, efficient photon electron conversion, good photostability, non-toxic nature and quantum confinement effects that make it an ideal photocatalyst and co-catalyst for chemical transformations. Recently, MoS2 has gained synthetic utility in chemical transformations. In this review, we will discuss MoS2 properties, structure, synthesis techniques, and photochemistry along with modifications of MoS2 to enhance its photocatalytic activity with a focus on its applications and future challenges.
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Affiliation(s)
- Praveen P Singh
- Department of Chemistry, United College of Engineering & Research Prayagraj 211002 Uttar Pradesh India
| | - Surabhi Sinha
- Department of Chemistry, United College of Engineering & Research Prayagraj 211002 Uttar Pradesh India
| | - Geetika Pandey
- Department of Physics, United University Prayagraj 211012 Uttar Pradesh India
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj-211002 Uttar Pradesh India
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22
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Rufino-Felipe E, Valdes H, Morales-Morales D. C‐S cross‐coupling reactions catalyzed by well‐defined copper and nickel complexes. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ernesto Rufino-Felipe
- Instituto de Quimica UNAM: Universidad Nacional Autonoma de Mexico Instituto de Quimica Inorganic Chemistry MEXICO
| | - Hugo Valdes
- University of Girona - Montilivi Campus: Universitat de Girona - Campus de Montilivi Chemistry SPAIN
| | - David Morales-Morales
- Instituto de Quimica. Universidad Nacional Autonoma de Mexico Quimica inorganica Ciudad UniversitariaCircuito Exterior S/NCoyoacan 04510 Mexico City MEXICO
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23
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Singh PP, Srivastava V. Recent advances in visible-light graphitic carbon nitride (g-C 3N 4) photocatalysts for chemical transformations. RSC Adv 2022; 12:18245-18265. [PMID: 35800311 PMCID: PMC9210974 DOI: 10.1039/d2ra01797k] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 06/04/2022] [Indexed: 01/02/2023] Open
Abstract
Graphitic carbon nitride (g-C3N4) has emerged as a new research hotspot, attracting broad interdisciplinary attention in the form of metal-free and visible-light-responsive photocatalysts in the field of solar energy conversion and environmental remediation. These photocatalysts have evolved as attractive candidates due to their non-toxicity, chemical stability, efficient light absorption capacity in the visible and near-infrared regions, and adaptability as a platform for the fabrication of hybrid materials. This review mainly describes the latest advances in g-C3N4 photocatalysts for chemical transformations. In addition, the typical applications of g-C3N4-based photocatalysts involving organic transformation reactions are discussed (synthesis of heterocycles, hydrosulfonylation, hydration, oxygenation, arylation, coupling reactions, etc.).
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Affiliation(s)
- Praveen P Singh
- Department of Chemistry, United College of Engineering & Research Naini Prayagraj 211010 India
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj 211002 India
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24
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Patel RI, Singh J, Sharma A. Visible Light‐Mediated Manipulation of 1,n‐Enynes in Organic Synthesis. ChemCatChem 2022. [DOI: 10.1002/cctc.202200260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Roshan I. Patel
- IIT Roorkee: Indian Institute of Technology Roorkee CHEMISTRY INDIA
| | - Jitender Singh
- IIT Roorkee: Indian Institute of Technology Roorkee CHEMISTRY INDIA
| | - Anuj Sharma
- Indian Institute of Technoology Roorkee Deptartment of Chemistry Room 303DDepartment of Chemistry, IIT Roorkee 247667 Roorkee INDIA
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25
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Yang D, Yan Q, Zhu E, Lv J, He WM. Carbon–sulfur bond formation via photochemical strategies: An efficient method for the synthesis of sulfur-containing compounds. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.068] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Recent advances of visible-light photocatalysis in the functionalization of organic compounds. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C: PHOTOCHEMISTRY REVIEWS 2022. [DOI: 10.1016/j.jphotochemrev.2022.100488] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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27
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Wang D, Zhang L, Xiao F, Mao GJ, Deng GJ. Electrochemical Selective C3-Thiolation of Quinolines. Org Chem Front 2022. [DOI: 10.1039/d2qo00148a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An electrochemical method has been developed to achieve C3-thiolation of quinoline compounds. This new strategy highlights the maximum atom economy, direct conversion and also the use of simple and readily...
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28
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Srivastava V, Singh PK, Tivari S, Singh PP. Visible light photocatalysis in the synthesis of pharmaceutically relevant heterocyclic scaffolds. Org Chem Front 2022. [DOI: 10.1039/d1qo01602d] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Visible light and photoredox catalysis have emerged as a powerful and long-lasting tool for organic synthesis, demonstrating the importance of a variety of chemical bond formation methods.
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Affiliation(s)
- Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj 211002, India
| | - Pravin K. Singh
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj 211002, India
| | - Shraddha Tivari
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj 211002, India
| | - Praveen P. Singh
- Department of Chemistry, United College of Engineering & Research, Naini, Prayagraj 211010, India
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29
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Sun QX, Chen H, Liu S, Wang XQ, Duan XH, Guo LN. Iron-Catalyzed Thiolation and Selenylation of Cycloalkyl Hydroperoxides via C-C Bond Cleavage. J Org Chem 2021; 86:11987-11997. [PMID: 34374284 DOI: 10.1021/acs.joc.1c01366] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A cheap iron-catalyzed C-C bond cleavage/thiolation and selenylation of cycloalkyl hydroperoxides are presented. This redox-neutral protocol provides efficient access to diverse distal keto-functionalized thioethers and selenium compounds. Remarkably, only some amounts of disulfides are required for this transformation.
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Affiliation(s)
- Qing-Xin Sun
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - He Chen
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiao-Qiang Wang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
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30
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Singh PP, Singh PK, Beg MZ, Kashyap A, Srivastava V. Recent applications of photoredox catalysis in O-heterocycles: A short review. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1968907] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Praveen P. Singh
- Department of Chemistry, United College of Engineering & Research, Prayagraj, India
| | - Pravin K. Singh
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj, India
| | - Mohd. Zaheeruddin Beg
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj, India
| | - Akanksha Kashyap
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj, India
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj, India
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31
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Nishiyama Y, Fujii A, Mori H. Photoreduction synthesis of various azoxybenzenes by visible-light irradiation under continuous flow conditions. J Flow Chem 2021. [DOI: 10.1007/s41981-021-00190-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Annamalai P, Liu KC, Singh Badsara S, Lee CF. Carbon-Sulfur Bond Constructions: From Transition-Metal Catalysis to Sustainable Catalysis. CHEM REC 2021; 21:3674-3688. [PMID: 34101980 DOI: 10.1002/tcr.202100133] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/19/2021] [Indexed: 01/12/2023]
Abstract
The recent decade evidenced a significant development in the construction of the C-S bond. The journey began with transitional-metal catalysis and reached sustainable catalysis via oxidant, photo, and electro catalyzed methods. A variety of catalytic systems have been explored for the C-S bond formation using a variety of sulfur precursors. This personal account provides an inclusive discussion of these developed methods in terms of reactivity, sustainability and productivity.
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Affiliation(s)
| | - Ke-Chien Liu
- Department of Chemistry, National Chung Hsing University, 402 R.O.C., Taichung, Taiwan
| | - Satpal Singh Badsara
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, 302004, Jaipur, Rajasthan, India
| | - Chin-Fa Lee
- Department of Chemistry, National Chung Hsing University, 402 R.O.C., Taichung, Taiwan.,i-Center for Advanced Science and Technology (iCAST) National Chung Hsing University, 402 R.O.C., Taichung, Taiwan.,Innovation and Development Center of Sustainable Agriculture (IDCSA) National Chung Hsing University, 402 R.O.C., Taichung, Taiwan
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33
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Mei W, Kong Y, Yan G. Synthetic applications of α,α-difluoroarylacetic acids and salts via decarboxylative functionalization. Org Chem Front 2021. [DOI: 10.1039/d1qo00775k] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
α,α-Difluoroarylacetic acids are stable, inexpensive and readily available building blocks which can be used to access various difluoromethylated aryl motifs via decarboxylative functionalization for the formation of carbon–carbon and carbon-heteroatom (F, O, S) bonds.
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Affiliation(s)
- Wenqiang Mei
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
| | - Yilin Kong
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
| | - Guobing Yan
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
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34
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Singh PP, Srivastava V. Recent advances in using 4DPAIPN in photocatalytic transformations. Org Biomol Chem 2021; 19:313-321. [DOI: 10.1039/d0ob01884h] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
1,3-Dicyano-2,4,5,6-tetrakis(diphenylamino)-benzene has emerged as a powerful and attractive metal-free organophotocatalyst for organic transformation and is expected to contribute to a great extent toward the advancement and development of synthetic methodologies.
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Affiliation(s)
- Praveen P. Singh
- Department of Chemistry
- United College of Engineering & Research
- Prayagraj 211010
- India
| | - Vishal Srivastava
- Department of Chemistry
- CMP Degree College
- University of Allahabad
- Prayagraj 211002
- India
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35
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Abstract
A metal-free two-component alkynylsulfonylation of vinylarenes with aryl alkynylsulfones to afford various β-sulfonyl alkynes in moderate to excellent yields under mild conditions is developed.
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Affiliation(s)
- Fei Wang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- State Key Laboratory of Structural Chemistry
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- University of Chinese Academy of Sciences
| | - Huan Zhou
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- State Key Laboratory of Structural Chemistry
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- University of Chinese Academy of Sciences
| | - Yajun Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- State Key Laboratory of Structural Chemistry
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- University of Chinese Academy of Sciences
| | - Hongli Bao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- State Key Laboratory of Structural Chemistry
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- University of Chinese Academy of Sciences
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36
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Srivastava V, Singh PK, Srivastava A, Singh PP. Synthetic applications of flavin photocatalysis: a review. RSC Adv 2021. [DOI: 10.1039/d1ra00925g] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Encouraging developments in the field of photocatalysis in last decades, biomolecules namely flavins have been observed to act as a catalyst in several photoredox-catalysed synthetic methodologies.
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Affiliation(s)
- Vishal Srivastava
- Department of Chemistry
- CMP Degree College
- University of Allahabad
- Prayagraj 211002
- India
| | - Pravin K. Singh
- Department of Chemistry
- CMP Degree College
- University of Allahabad
- Prayagraj 211002
- India
| | - Arjita Srivastava
- Department of Chemistry
- CMP Degree College
- University of Allahabad
- Prayagraj 211002
- India
| | - Praveen P. Singh
- Department of Chemistry
- United College of Engineering & Research
- Prayagraj 211010
- India
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37
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Li A, Li Y, Liu J, Chen J, Lu K, Qiu D, Fagnoni M, Protti S, Zhao X. Metal-Free Trifluoromethylthiolation of Arylazo Sulfones. J Org Chem 2021; 86:1292-1299. [PMID: 33350303 PMCID: PMC8765700 DOI: 10.1021/acs.joc.0c02669] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Indexed: 12/20/2022]
Abstract
A visible-light-driven protocol for the synthesis of aryl trifluoromethyl thioethers under photocatalyst- and metal-free conditions has been pursued. The procedure exploits the peculiar properties of arylazo sulfones (having electron-rich or electron-poor substituents on the (hetero)aromatic ring) as photochemical precursors of aryl radicals and S-trifluoromethyl arylsulfonothioates as easy-to-handle trifluoromethylthiolating agents.
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Affiliation(s)
- Ankun Li
- Tianjin
Key Laboratory of Structure and Performance for Functional Molecules,
College of Chemistry, Tianjin Normal University, Tianjin 300387, People’s Republic of China
| | - Yuxuan Li
- Tianjin
Key Laboratory of Structure and Performance for Functional Molecules,
College of Chemistry, Tianjin Normal University, Tianjin 300387, People’s Republic of China
- College
of Biotechnology, Tianjin University of
Science & Technology, Tianjin 300457, China
| | - Junjie Liu
- Tianjin
Key Laboratory of Structure and Performance for Functional Molecules,
College of Chemistry, Tianjin Normal University, Tianjin 300387, People’s Republic of China
- College
of Biotechnology, Tianjin University of
Science & Technology, Tianjin 300457, China
| | - Jingqi Chen
- Tianjin
Key Laboratory of Structure and Performance for Functional Molecules,
College of Chemistry, Tianjin Normal University, Tianjin 300387, People’s Republic of China
| | - Kui Lu
- College
of Biotechnology, Tianjin University of
Science & Technology, Tianjin 300457, China
| | - Di Qiu
- Tianjin
Key Laboratory of Structure and Performance for Functional Molecules,
College of Chemistry, Tianjin Normal University, Tianjin 300387, People’s Republic of China
| | - Maurizio Fagnoni
- PhotoGreen
Lab, Department of Chemistry, University
of Pavia, V. Le Taramelli 12, Pavia 27100, Italy
| | - Stefano Protti
- PhotoGreen
Lab, Department of Chemistry, University
of Pavia, V. Le Taramelli 12, Pavia 27100, Italy
| | - Xia Zhao
- Tianjin
Key Laboratory of Structure and Performance for Functional Molecules,
College of Chemistry, Tianjin Normal University, Tianjin 300387, People’s Republic of China
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38
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Patel RI, Sharma A, Sharma S, Sharma A. Visible light-mediated applications of methylene blue in organic synthesis. Org Chem Front 2021. [DOI: 10.1039/d0qo01182g] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review presents the manipulation of methylene blue in visible-light-assisted organic synthesis.
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Affiliation(s)
| | - Anoop Sharma
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Shivani Sharma
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Anuj Sharma
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
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39
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Ye R, Ruan H, Xu H, Li Z, Meng LG, Wang L. Amino-assisted synthesis of alkynylthioethers via a visible-light-induced C (sp)–S II coupling between bromoalkynes and 2,2′-diaminodiaryldisulfides. Org Chem Front 2021. [DOI: 10.1039/d1qo01082d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A straightforward synthesis of alkynylthioethers via amino-assisted/visible-light-promoted coupling of bromoalkynes with 2,2′-diaminodiaryldisulfides without transition metals, photocatalysts and additives was developed.
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Affiliation(s)
- Ruyi Ye
- Department of Chemistry; Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Hongjie Ruan
- Department of Chemistry; Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Hailong Xu
- Department of Chemistry; Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Ziyang Li
- Department of Chemistry; Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Ling-Guo Meng
- Department of Chemistry; Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Lei Wang
- Department of Chemistry; Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
- Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang 318000, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P R China
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40
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Srivastava A, Singh PK, Ali A, Singh PP, Srivastava V. Recent applications of Rose Bengal catalysis in N-heterocycles: a short review. RSC Adv 2020; 10:39495-39508. [PMID: 35515398 PMCID: PMC9057485 DOI: 10.1039/d0ra07400d] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 10/18/2020] [Indexed: 11/21/2022] Open
Abstract
The visible light harnessing ability of Rose Bengal, an organic dye, has been extensively employed in organic chemistry over the last few years. In visible light mediated reactions, this photoredox catalyst operates through multiple pathways and has the ability to provide distinctly different and valuable results. The most significant of these results are bond creation, bond functionalization, particularly for C–H and C–heteroatom bonds, and cross couplings. It is crucial to study these cases whenever these bond formations and couplings lead to the formation of heterocyclic compounds or their functionalization. The diverse biological activity and medicinal applications of heterocyclic compounds is an extensively explored area. This review primarily attempts to demonstrate the synthetic potential of Rose Bengal for synthesis and site selective functionalization of nitrogen containing heterocycles. The recent applications of Rose Bengal as a photocatalyst for the synthesis and functionalization of N-heterocycles have been discussed.![]()
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Affiliation(s)
| | | | - Akram Ali
- Department of Chemistry
- CMP Degree College
- Prayagraj
- India
| | - Praveen P. Singh
- Department of Chemistry
- United College of Engineering and Research
- Prayagraj
- India
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