1
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Li S, Huang Z, Wang X, Yingxiong H, Niu G, Chen Z, Zhang Z. Catalyst-Free Synthesis of Thiosulfonates and 3-Sulfenylindoles from Sodium Sulfinates in Water. Chemistry 2024:e202400153. [PMID: 38566460 DOI: 10.1002/chem.202400153] [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: 01/13/2024] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/04/2024]
Abstract
This paper presents a green and efficient aqueous-phase method for the synthesis of thiosulfonates, which has the benefits of no need for catalysts or redox reagents and a short reaction time, providing a method with great economic value for synthesizing thiosulfonates. Furthermore, 3-Sulfenylindoles can be easily synthesized using this method, which expands the potential applications of this reaction.
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Affiliation(s)
- Shaoke Li
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Biomass-derived Functional Oligosaccharides Engineering Technology Research Center of Anhui Province, Fuyang Normal University, Fuyang, Anhui, 236037, P. R. China
| | - Zijun Huang
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Biomass-derived Functional Oligosaccharides Engineering Technology Research Center of Anhui Province, Fuyang Normal University, Fuyang, Anhui, 236037, P. R. China
| | - Xin Wang
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Biomass-derived Functional Oligosaccharides Engineering Technology Research Center of Anhui Province, Fuyang Normal University, Fuyang, Anhui, 236037, P. R. China
| | - Hui Yingxiong
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Biomass-derived Functional Oligosaccharides Engineering Technology Research Center of Anhui Province, Fuyang Normal University, Fuyang, Anhui, 236037, P. R. China
| | - Guohao Niu
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Biomass-derived Functional Oligosaccharides Engineering Technology Research Center of Anhui Province, Fuyang Normal University, Fuyang, Anhui, 236037, P. R. China
| | - Ziyan Chen
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Biomass-derived Functional Oligosaccharides Engineering Technology Research Center of Anhui Province, Fuyang Normal University, Fuyang, Anhui, 236037, P. R. China
| | - Zhenlei Zhang
- School of Chemistry and Material Engineering, Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions, Biomass-derived Functional Oligosaccharides Engineering Technology Research Center of Anhui Province, Fuyang Normal University, Fuyang, Anhui, 236037, P. R. China
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2
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Hu W, Diao X, Yuan J, Liang W, Yang W, Yang L, Ma J, Zhang S. Photoredox-Catalyzed Tandem Cyclization of Enaminones with N-Sulfonylaminopyridinium Salts toward the Synthesis of 3-Sulfonaminated Chromones. J Org Chem 2024; 89:644-655. [PMID: 38088130 DOI: 10.1021/acs.joc.3c02399] [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
A photoredox-catalyzed intermolecular tandem sulfonamination/cyclization of enaminones was realized by using N-aminopyridinium salts as the sulfonaminated reagents without transition-metal catalysts or bases. The reaction exhibits a broad scope and good functional group tolerance, good yields, and regioselectivity. Preliminary mechanistic studies support the radical property of the reaction and the involvement of N-centered radical intermediates.
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Affiliation(s)
- Wenyu Hu
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Xiaoqiong Diao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Jinwei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Wei Liang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Wan Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Liangru Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Ji Ma
- Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, P.R. China
| | - Shouren Zhang
- Henan Key Laboratory of Nanocomposites and Applications, Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou 450006, P. R. China
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3
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Xalxo A, Jyoti Goswami U, Sarkar S, Kandasamy T, Mehta K, Ghosh SS, Bharatam PV, Khan AT. Synthesis of 3-sulfenylindole derivatives from 4-hydroxy-2H-chromene-2-thione and indole using oxidative cross-dehydrogenative coupling reaction and anti-proliferative activity study of some of their sulfone derivatives. Bioorg Chem 2023; 141:106900. [PMID: 37813073 DOI: 10.1016/j.bioorg.2023.106900] [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: 08/04/2023] [Revised: 09/28/2023] [Accepted: 09/29/2023] [Indexed: 10/11/2023]
Abstract
The synthesis of hitherto unreported 3-sulfenylindole derivatives is achieved from 4-hydroxy-2H-chromene-2-thione (1) and indole (2) by employing an oxidative cross-dehydrogenative coupling reaction using a combination of 10 mol% of molecular iodine and 1 equivalent of TBHP in DMSO at room temperature. Then, the 3-sulfenylindole derivatives 3a, 3b, 3d, 3f, 3 h, and 3 k were converted into their corresponding sulfone derivatives because of lead likeness properties. Subsequently, a target prediction and docking study of six sulfone derivatives (5a-f) was performed, and four sulfones, namely 5a, 5d, 5e, and 5f, were selected for further in-vitro studies. The four sulfones mentioned above exhibited prominent anti-proliferative activity on breast cancer (MCF7) cell lines. In addition, this reaction was exergonic through quantum chemical analysis of the mechanistic steps. The salient features of this reaction are mild reaction conditions, good yields, and broad substrate scope.
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Affiliation(s)
- Anjela Xalxo
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Ujjwal Jyoti Goswami
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Shilpi Sarkar
- Department of Bioscience and Engineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Thirukumaran Kandasamy
- Department of Bioscience and Engineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Kriti Mehta
- National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Mohali, 160062, Punjab
| | - Siddhartha S Ghosh
- Department of Bioscience and Engineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Prasad V Bharatam
- National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Mohali, 160062, Punjab.
| | - Abu T Khan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
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4
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Xia JH, Chen Q, Yuan JW, Shi WS, Yang LR, Xiao YM. Selectfluor-mediated tandem cyclization of enaminones with diselenides toward the synthesis of 3-selenylated chromones. RSC Adv 2023; 13:26948-26959. [PMID: 37692339 PMCID: PMC10486202 DOI: 10.1039/d3ra05246j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 09/04/2023] [Indexed: 09/12/2023] Open
Abstract
A practical and metal-free approach for the regioselective selenation of chromones employing Selectfluor reagent under mild conditions is described. The developed method is suitable for a wide substrate scope and affords 3-selenylated chromones in good to excellent yield with high selectivity. An ionic mechanism is proposed for this transformation. Furthermore, the application of potassium thiocyanate with enaminones for the synthesis of thiocyano chromones in this transformation is also successful.
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Affiliation(s)
- Ji-Hong Xia
- ENOVA Pharmaceutical Research (Nanjing) Co. Ltd Nanjing 210033 P. R. China
| | - Qian Chen
- School of Chemistry & Chemical Engineering, Henan University of Technology Zhengzhou 450001 China
| | - Jin-Wei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology Zhengzhou 450001 China
| | - Wei-Shuo Shi
- School of Chemistry & Chemical Engineering, Henan University of Technology Zhengzhou 450001 China
| | - Liang-Ru Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology Zhengzhou 450001 China
| | - Yong-Mei Xiao
- School of Chemistry & Chemical Engineering, Henan University of Technology Zhengzhou 450001 China
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5
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Chen XH, Cui HL. AcBr/DMSO Mediated Sulfenylation of Pyrrolo[2,1- a]isoquinolines. J Org Chem 2023. [PMID: 37167603 DOI: 10.1021/acs.joc.3c00566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
We have developed a mild sulfenylation of pyrrolo[2,1-a]isoquinolines with acetyl bromide and dimethyl sulfoxide. A wide range of functionalized pyrrolo[2,1-a]isoquinolines could be prepared efficiently through the formation of a C-S bond with thiophenols (27 examples, 36-94% yields). The current strategy can also be utilized for functionalization of pyrrolo[1,2-a]quinolines and indole.
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Affiliation(s)
- Xiao-Hui Chen
- Laboratory of Asymmetric Synthesis, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P. R. China
| | - Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P. R. China
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6
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Gond KK, Maddani MR. Addition of sulfonylphthalides to para-quinone methides: Selective 1,6-additions and oxidative annulations. Org Biomol Chem 2023; 21:2504-2508. [PMID: 36897072 DOI: 10.1039/d2ob02134j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
KOtBu mediated addition of sulfonylphthalides to p-quinone methides led to the selective synthesis of isochroman-1,4-diones and addition products. Interestingly, isochroman-1,4-diones were obtained via an unprecedented oxidative annulation pathway. The present work highlights a wide variety of substrates, good yields, shorter reaction time and ambient reaction conditions. Furthermore, a few addition products were transformed into functionalized heterocyclic molecules. Additionally, the scale-up experiment suggests the practical feasibility of preparing isochroman-1,4-diones in higher-scale reactions.
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Affiliation(s)
- Kavyashree Kuppayya Gond
- Department of Post-Graduate Studies and Research in Chemistry, Mangalore University, Mangalagangothri-574199, India.
| | - Mahagundappa Rachappa Maddani
- Department of Post-Graduate Studies and Research in Chemistry, Mangalore University, Mangalagangothri-574199, India.
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7
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Cui HL. Recent Advances in DMSO-Based Direct Synthesis of Heterocycles. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238480. [PMID: 36500564 PMCID: PMC9738701 DOI: 10.3390/molecules27238480] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
Besides serving as a low-toxicity, inexpensive and easily accessible solvent, dimethyl sulfoxide (DMSO) has also been extensively used as a versatile reagent for the synthesis of functionalized molecules. Dimethyl sulfoxide can not only be utilized as a carbon source, a sulfur source and an oxygen source, but also be employed as a crucial oxidant enabling various transformations. The past decade has witnessed a large number of impressive achievements on the direct synthesis of heterocycles as well as modifications of heterocyclic compounds by applying DMSO as a reagent. This review summarized the DMSO-based direct heterocycle constructions from 2012 to 2022.
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Affiliation(s)
- Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, China
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8
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Wu YX, Wu SY, Dong ZB. Green and Practical Synthesis of Thioenamines and Chromones via Iodine-Catalyzed Cross-Dehydrogenation Coupling Reaction. J Org Chem 2022; 87:15350-15357. [DOI: 10.1021/acs.joc.2c01924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yue-Xiao Wu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Shi-Ya Wu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Zhi-Bing Dong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
- Hubei Key Laboratory of Biologic Resources Protection and Utilization, Hubei Minzu University, Enshi 445000, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
- Key Laboratory of Green Chemical Process, Ministry of Education, Wuhan Institute of Technology, Wuhan 430205, China
- Engineering Research Center of Phosphorus Resources Development and Utilization, Ministry of Education, Wuhan Institute of Technology, Wuhan 430205, China
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9
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Zhang C, Luo J, Zhang J, Chen L, Zhu X, Guo M, Shen C, Li Z, Wang W. Tf
2
O‐mediated Regioselective C(sp
2
)−H Sulfenylation of Enaminones Using Methyl Sulfoxides as Sulfur Sources. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200014] [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)
- Changyuan Zhang
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Jian Luo
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Jiantao Zhang
- College of Chemistry Guangdong University of Petrochemical Technology Guandu Road Maoming 525000 P. R. China
| | - Lulu Chen
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Xuncheng Zhu
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Mengping Guo
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Chan Shen
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Zeng Li
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Wei Wang
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
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10
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Zhang D, Hu L, Yang C, Li X, Teng M, Liu B, Huang G. Tetramethylammonium Iodide (TMAI)‐Promoted Sulfenylation/Annulation of Enaminones with Thiosulfonates. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- De‐Run Zhang
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming 650500 P. R. China
| | - Lin‐Ping Hu
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming 650500 P. R. China
| | - Cai‐Yun Yang
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming 650500 P. R. China
| | - Xia Li
- Department of Library Yunnan Normal University Kunming 650500 P. R. China
| | - Ming‐Yu Teng
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming 650500 P. R. China
| | - Bo Liu
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming 650500 P. R. China
| | - Guo‐Li Huang
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming 650500 P. R. China
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11
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Truong TS, Retailleau P, Nguyen TB. TFA/DMSO‐Promoted Cross‐Dehydrogenative Coupling of Hetaryl Thiols with Indoles: Access to 3‐(Hetarylsulfenyl)indole under Mild Conditions. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100751] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tan Sang Truong
- Institut de Chimie des Substances Naturelles chemistry FRANCE
| | | | - Thanh Binh Nguyen
- Institut de Chimie des Substances Naturelles Chemistry 1 avenue de la Terrasse 91198 Gif-sur-Yvette FRANCE
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12
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Rai V, P K, Harmalkar SS, Dhuri SN, Maddani MR. 1,6-Addition of 1,2,3-NH triazoles to para-quinone methides: Facile access to highly selective N 1 and N 2 substituted triazoles. Org Biomol Chem 2022; 20:345-351. [PMID: 34908078 DOI: 10.1039/d1ob01717a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The regioselective syntheses of N1 and N2 substituted triazoles through a 1,6-addition reaction of 1,2,3-NH triazoles to p-quinone methide were achieved under mild reaction conditions. The present reactions showed superior results in terms of selectivity, mild reaction conditions, short reaction time and broad substrate scope with good functional-group compatibility. Considering the high synthetic value of N1- and N2-substituted compounds and p-QM related research, the present strategy will greatly benefit researchers in various fields.
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Affiliation(s)
- Vishakha Rai
- Department of Chemistry, Mangalore University, Mangalagangothri, Mangalore, Karnataka, India.
| | - Kavyashree P
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, India
| | | | - Sundar N Dhuri
- School of Chemical Sciences, Goa University, Goa 403206, India
| | - Mahagundappa R Maddani
- Department of Chemistry, Mangalore University, Mangalagangothri, Mangalore, Karnataka, India.
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13
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Benny AT, Arikkatt SD, Vazhappilly CG, Kannadasan S, Thomas R, Leelabaiamma MSN, Radhakrishnan EK, Shanmugam P. Chromone a Privileged Scaffold in Drug Discovery: Developments on the Synthesis and Bioactivity. Mini Rev Med Chem 2021; 22:1030-1063. [PMID: 34819000 DOI: 10.2174/1389557521666211124141859] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 05/12/2021] [Accepted: 09/02/2021] [Indexed: 11/22/2022]
Abstract
Chromones are the class of secondary metabolites broadly occurred in the plant kingdom in a noticeable quantity. This rigid bicyclic system has been categorized "as privileged scaffolds in compounds" in medicinal chemistry. The wide biological responses made them an important moiety in a drug discovery program. This review provides updates on the various methods of synthesis of chromones and biological applications in medicinal chemistry. Various synthetic strategies for the construction of chromones include readily available phenols, salicylic acid and its derivatives, ynones, chalcones, enaminones, chalcones and 2-hydroxyarylalkylketones as starting materials. Synthesis of chromones by using metal, metal free, nanomaterials and different catalysts are included. Details of diverse biological activities such as anti-cancer agents, antimicrobial agents, anti-viral property, anti-inflammatory agents, antioxidants, Monoamine Oxidase-B (MAO-B) Inhibitors, anti-Alzheimer's agents, anti-diabetic agent, antihistaminic potential, antiplatelet agents of chromone derivatives are diecussed.
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Affiliation(s)
- Anjitha Theres Benny
- Department of Chemistry, School of Advanced Sciences, VIT, Vellore-632014. India
| | - Sonia D Arikkatt
- Department of Chemistry, School of Advanced Sciences, VIT, Vellore-632014. India
| | - Cijo George Vazhappilly
- Department of Biotechnology, American University of Ras Al Khaimah, Ras Al Khaimah. United Arab Emirates
| | | | - Renjan Thomas
- Division of Molecular Pathology, Strand Lifesciences, HCG Hospital, Bangalore - 560 0270. India
| | | | | | - Ponnusamy Shanmugam
- Organic and Bioorganic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai-600020. India
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14
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Zhang T, Yao W, Wan J, Liu Y. Transition‐Metal‐Free C(
sp
2
)‐H Dithiocarbamation and Chromone Annulation Cascade for 3‐Dithiocarbamyl Chromone Synthesis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100617] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Tao Zhang
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Weijun Yao
- Department of Chemistry Zhejiang Sci-Tech University Hangzhou 310018 People's Republic of China
| | - Jie‐Ping Wan
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
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15
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Rai V, Sorabad GS, Maddani MR. Efficient and Direct Selenocyanation of Ketene Dithioacetals Using Malononitrile‐SeO
2
Under Transition‐Metal‐Free Conditions. ChemistrySelect 2021. [DOI: 10.1002/slct.202101208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Vishakha Rai
- Department of Chemistry Mangalore University, Mangalgangothri- 574199 Karnataka India
| | - Ganesh S. Sorabad
- Department of Chemistry Mangalore University, Mangalgangothri- 574199 Karnataka India
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16
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Rai V, Sorabad GS, Maddani MR. Facile and direct halogenation of 1,2,3-triazoles promoted by a KX–oxone system under transition metal free conditions. NEW J CHEM 2021. [DOI: 10.1039/d0nj05170e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A convenient and efficient oxidative halogenation of 4-aryl 1,2,3-triazoles is realized at ambient temperature under transition metal free conditions.
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Affiliation(s)
- Vishakha Rai
- Department of Chemistry
- Mangalore University
- Mangalore
- India
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17
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Rai V, Sorabad GS, Maddani MR. Transition metal free, green and facile halogenation of ketene dithioacetals using a KX–oxidant system. NEW J CHEM 2021. [DOI: 10.1039/d0nj03737k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A facile oxidative halogenation of α-oxo ketene dithioacetals is achieved by using a potassium halide and an oxidant combination under transition metal free conditions at ambient temperature.
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Affiliation(s)
- Vishakha Rai
- Department of Chemistry
- Mangalore University
- 574199 Mangalore
- India
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18
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I
2
‐Promoted Direct C−H Sulfenylation of Isoquinolin‐1(2
H
)‐ones with Sulfonyl Chlorides. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001371] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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19
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Lu F, Zhang K, Wang X, Yao Y, Li L, Hu J, Lu L, Gao Z, Lei A. Electrochemical Oxidative Cross‐Coupling of Enaminones and Thiophenols to Construct C−S Bonds. Chem Asian J 2020; 15:4005-4008. [DOI: 10.1002/asia.202001116] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/08/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Fangling Lu
- College of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an Xian Shi 710119 P. R.China
| | - Kan Zhang
- College of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an Xian Shi 710119 P. R.China
| | - Xiaoyu Wang
- College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 Jiangxi P. R.China
| | - Yanxiu Yao
- College of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an Xian Shi 710119 P. R.China
| | - Liangsen Li
- College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 Jiangxi P. R.China
| | - Jianguo Hu
- College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 Jiangxi P. R.China
| | - Lijun Lu
- College of Chemistry and Molecular Sciences the Institute for Advanced Studies (IAS) Wuhan University Wuhan Hubei 430072 P. R.China
| | - Ziwei Gao
- College of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an Xian Shi 710119 P. R.China
| | - Aiwen Lei
- College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 Jiangxi P. R.China
- College of Chemistry and Molecular Sciences the Institute for Advanced Studies (IAS) Wuhan University Wuhan Hubei 430072 P. R.China
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20
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Rai V, Sorabad GS, Maddani MR. CuX
2
Mediated Facile Halocyclization of
N
‐Allyl Thioureas. ChemistrySelect 2020. [DOI: 10.1002/slct.202000593] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Vishakha Rai
- Department of ChemistryMangalore University Mangalagangothri 574199 Mangalore Karnataka India
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21
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Li W, Wang H, Liu S, Feng H, Benassi E, Qian B. Iodine/Manganese Catalyzed Sulfenylation of Indole via Dehydrogenative Oxidative Coupling in Anisole. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000291] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Weihe Li
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou, Gansu 730070 People's Republic of China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical PhysicsChinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Hao Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical PhysicsChinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Shengping Liu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical PhysicsChinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Hua Feng
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou, Gansu 730070 People's Republic of China
| | - Enrico Benassi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical PhysicsChinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Bo Qian
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical PhysicsChinese Academy of Sciences Lanzhou 730000 People's Republic of China
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22
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Lin Y, Wan JP, Liu Y. Synthesis of 3-halochromones with simple KX halogen sources enabled by in situ halide oxidation. NEW J CHEM 2020. [DOI: 10.1039/d0nj00825g] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An in situ oxidation strategy for generating molecular halogen has been developed for the synthesis of 3-halochromones by employing simple potassium halides as halogen sources.
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Affiliation(s)
- Yan Lin
- College of Chemistry and Chemical Engineering, Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University
- Nanchang 330022
- P. R. China
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23
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Wang D, Zhou K, Zhang J, Zhao Y. Rhodium( iii)-catalyzed carboxylate-directed ortho-selective thiolation of benzoic acids. Org Chem Front 2020. [DOI: 10.1039/d0qo00940g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A rhodium-catalyzed carboxylate-directed thiolation reaction has been developed for constructing C–S bonds on benzoic acids, and the key precursor of roflumilast can be furnished via this reaction.
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Affiliation(s)
- Dongjie Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Kehan Zhou
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jingyu Zhang
- College of Energy
- Soochow Institute for Energy and Materials Innovations
- Soochow University
- Suzhou 215006
- China
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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24
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Luo T, Wan JP, Liu Y. Toward C2-nitrogenated chromones by copper-catalyzed β-C(sp2)–H N-heteroarylation of enaminones. Org Chem Front 2020. [DOI: 10.1039/d0qo00065e] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The synthesis of C2-nitrogenated chromones has been performed via reactions of enaminones and nitrogen nucleophiles based on an unconventional β-C–H bond functionalization and a featured chromone annulation of enaminones.
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Affiliation(s)
- Tian Luo
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
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25
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Adarsh Krishna TP, Pandaram S, Chinnasamy S, Ilangovan A. Oxidative radical coupling of hydroquinones and thiols using chromic acid: one-pot synthesis of quinonyl alkyl/aryl thioethers. RSC Adv 2020; 10:19454-19462. [PMID: 35515459 PMCID: PMC9054077 DOI: 10.1039/d0ra01519a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/11/2020] [Indexed: 12/21/2022] Open
Abstract
An efficient, simple and practical protocol for one-pot sequential oxidative radical C–H/S–H cross-coupling of thiols with hydroquinones (HQs) and oxidation leading to the formation of quinonyl alkyl/aryl thioethers using H2CrO4 was developed. This cross-coupling of thiyl and aryl radicals offers mono thioethers in good to moderate yield and works well with a wide variety of thiols. Similarly, this method works well for coupling of 2-amino thiophenol and HQs to form phenothiazine-3-ones 5a–c. C–S bond formation via thioether synthesis was observed using a chromium reagent for the first time. Theoretical studies on the pharmacokinetic properties of compounds 5a–c revealed that due to drug-like properties, compound 5b strongly binds with Alzheimer's disease (AD) associated AChE target sites. Oxidative radical C–H/S–H cross coupling of hydroquinones and thiols and oxidation to quinone using a H2CrO4 system was developed.![]()
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26
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Yu Q, Liu Y, Wan JP. Transition metal-free synthesis of 3-trifluoromethyl chromones via tandem C–H trifluoromethylation and chromone annulation of enaminones. Org Chem Front 2020. [DOI: 10.1039/d0qo00855a] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The synthesis of 3-trifluoromethyl chromones has been realized via transition metal-free reactions of o-hydroxyphenyl enaminones and the Langlois reagent via cascade C–H trifluoromethylation and chromone annulation.
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Affiliation(s)
- Qing Yu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
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27
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Sorabad GS, Maddani MR. Facile, regioselective oxidative selenocyanation of N-aryl enaminones under transition-metal-free conditions. NEW J CHEM 2020. [DOI: 10.1039/c9nj05845a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The present selenocyanation is applied for the synthesis of selenocyanated chromones, indoles and anilines in good to excellent yields.
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Affiliation(s)
- Ganesh Shivayogappa Sorabad
- Department of Post-Graduate Studies and Research in Chemistry Mangalore University
- Mangalgangothri-574199
- India
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28
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Chen L, Zhang J, Wei Y, Yang Z, Liu P, Zhang J, Dai B. NH4I/1,10-phenanthroline catalyzed direct sulfenylation of N-heteroarenes with ethyl arylsulfinates. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130664] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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