1
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Yang K, Yin D, Sun Y, Yang Z, Li Y, Xu L, Du Y. Synthesis of Fluoromethylated Chromones and Their Heteroatom Analogues via Sodium Fluoromethanesulfinate-Enabled Direct Fluoromethylation. J Org Chem 2024; 89:565-575. [PMID: 38115769 DOI: 10.1021/acs.joc.3c02301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
An array of biologically interesting tri/difluoromethylated chromones and their heteroatom analogues were conveniently synthesized from the reaction of chromones and their heteroatom analogues with CF3SO2Na or HCF2SO2Na in the presence of tert-butyl hydroperoxide under mild conditions. A mechanistic pathway involving the generation of the electrophilic tri/difluoromethyl radical, followed with the radical substitution of chromones and their heteroatom analogues, was postulated.
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Affiliation(s)
- Kaiyue Yang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Dongxue Yin
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yuli Sun
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Zhifang Yang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yadong Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Lingzhi Xu
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
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2
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Yan H, Wang FD, Wang M, Ye L, Li P. Photoinduced Radical Cyclization of 2-Alkynylthioanisoles with Disulfides without an External Photocatalyst. J Org Chem 2023; 88:15288-15297. [PMID: 37872481 DOI: 10.1021/acs.joc.3c01776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
An efficient strategy for the synthesis of 3-arylthiobenzo[b]thiophenes via a photodriven radical cyclization of 2-alkynylthioanisoles with disulfide was developed. The reaction proceeded smoothly under visible-light irradiation without any external photocatalyst and generated the desired products in high yields with good functional group tolerance.
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Affiliation(s)
- Han Yan
- College of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
| | - Fen-Dou Wang
- College of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
| | - Min Wang
- College of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
| | - Liang Ye
- College of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
| | - Pinhua Li
- College of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
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3
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Photoinduced cyclization of aryl ynones with 4-alkyl-DHPs for the divergent synthesis of indenones, thioflavones and spiro[5.5]trienones. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2022.112819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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4
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Huang J, Wang W, Zhang L, Meng X. Recent advances in the synthesis of benzo[b]thiophene fused polycyclic derivatives: strategies and reactions. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.108003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Ma C, Meng H, He X, Jiang Y, Yu B. Visible-Light-Promoted Transition-Metal-Free Construction of 3-Perfluoroalkylated Thioflavones. Front Chem 2022; 10:953978. [PMID: 35910726 PMCID: PMC9326344 DOI: 10.3389/fchem.2022.953978] [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: 05/26/2022] [Accepted: 06/15/2022] [Indexed: 11/30/2022] Open
Abstract
A visible-light-promoted transition-metal-free perfluoroalkylation/cyclization reaction was developed with 9-mesityl-10-methylacridinium perchlorate (Acr+-Mes·ClO4−) as the photocatalyst, by which various perfluoroalkyl-substituted heterocycles including thioflavones, oxindoles, and quinoline-2,4(1H,3H)-diones were prepared at room temperature. Moreover, the potential of this sustainable method is demonstrated by the excellent in vitro anti-lymphoma and cervical carcinoma activity of the novel 3-perfluoroalkylated thioflavone 3m.
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Affiliation(s)
- Chunhua Ma
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical, Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, China
| | - Hui Meng
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical, Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, China
| | - Xing He
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical, Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, China
| | - Yuqin Jiang
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical, Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, China
- *Correspondence: Yuqin Jiang, ; Bing Yu,
| | - Bing Yu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, China
- *Correspondence: Yuqin Jiang, ; Bing Yu,
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6
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Chen X, Pei C, Liu B, Li J, Zou D, Wu Y, Wu Y. Copper-assisted trifluoromethylthiolation/radical cascade cyclization of alkynes to construct SCF 3-containing dioxodibenzothiazepines. Chem Commun (Camb) 2022; 58:8674-8677. [PMID: 35822922 DOI: 10.1039/d2cc02171d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and efficient Cu-assisted trifluoromethylthiolation/radical cascade cyclization of alkynes with readily available and stable AgSCF3 as the trifluoromethylthiolating reagent has been disclosed. This transformation provides an opportunity to construct a series of potential medicinally valuable trifluoromethylthio-substituted dioxodibenzothiazepines with wide functional group compatibility. This protocol opens up a new avenue for the construction of useful trifluoromethylthiolated seven-membered N-heterocycles.
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Affiliation(s)
- Xiaoyu Chen
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Congcong Pei
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Bo Liu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Jingya Li
- Tetranov Biopharm, LLC., Zhengzhou, 450052, People's Republic of China
| | - Dapeng Zou
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Yusheng Wu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China. .,Tetranov International, Inc., 100 Jersey Avenue, Suite A340, New Brunswick, NJ, 08901, USA.
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7
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Ren Y, Yan Q, Li Y, Gao Y, Zhao J, Li L, Liu ZQ, Li Z. Free Radical Promoted Trifluoromethylthiolation of Alkynes to Access SCF 3-Containing Dibenzazepines or Dioxodibenzothiazepines. J Org Chem 2022; 87:8773-8781. [PMID: 35709505 DOI: 10.1021/acs.joc.2c00623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Persulfate-promoted radical cascade trifluoromethylthiolation of aryl acetylenes with AgSCF3 provides a simple reaction system for the synthesis of SCF3-substituted dibenzazepines or dioxodibenzothiazepines with good Z/E selectivity. The single-crystal X-ray diffraction data confirms the structures of the final products. A series of scaled-up experiments, further transformations, and radical inhibition experiments were operated in the reaction system.
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Affiliation(s)
- Yingming Ren
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry & Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, People's Republic of China
| | - Qinqin Yan
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry & Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, People's Republic of China
| | - Yang Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry & Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, People's Republic of China
| | - Yongjun Gao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry & Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, People's Republic of China
| | - Jincan Zhao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry & Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, People's Republic of China
| | - Lijun Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry & Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, People's Republic of China
| | - Zhong-Quan Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, People's Republic of China
| | - Zejiang Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry & Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, People's Republic of China
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8
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Chen K, Huang D, Sun X. Strategy Analysis of Ynones’ Radical Reactions. MINI-REV ORG CHEM 2022. [DOI: 10.2174/1570193x18666210810154051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:
This review highlights the multifaceted synthetic applications of ynones in radical reactions.
Substantial progress has been made over the last decade (2010-2020) in the utilization of
ynones. Herein, the chemistry of ynones is divided into three sections based on the classes of critical
mechanistic insights: (1) radical addition and intramolecular cyclization; (2) radical addition
and intermolecular annulation; (3) radical addition and coupling. We hope that this review will
promote future research in this area.
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Affiliation(s)
- Kaijun Chen
- Department of Chemistry, Lishui University, Lishui City 323000, Zhejiang Province, P.R. China
| | - Dayun Huang
- Department of Chemistry, Lishui University, Lishui City 323000, Zhejiang Province, P.R. China
| | - Xiangyu Sun
- Torch High Technology Industry Development Center, Ministry of Science & Technology, Xicheng District, Beijing, P.R. China
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9
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Alikhani Z, Albertson AG, Walter CA, Masih PJ, Kesharwani T. Synthesis of Benzo[ b]thiophenes via Electrophilic Sulfur Mediated Cyclization of Alkynylthioanisoles. J Org Chem 2022; 87:6312-6320. [PMID: 35436400 DOI: 10.1021/acs.joc.1c02606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A stable dimethyl(thiodimethyl)sulfonium tetrafluoroborate salt was employed for the electrophilic cyclization reaction of o-alkynyl thioanisoles for the synthesis of 2,3-disubstituted benzo[b]thiophenes. The reaction described herein works well with various substituted alkynes in excellent yields, and a valuable thiomethyl group was introduced with ease. The reaction utilizes moderate reaction conditions and ambient temperature while tolerating various functionalities. To elucidate the mechanism, electrophilic addition reactions using the dimethyl(thiodimethyl)sulfonium tetrafluoroborate salt with diphenylacetylene was demonstrated.
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Affiliation(s)
- Zahra Alikhani
- Department of Chemistry, University of West Florida, 11000 University Pkwy, Pensacola, Florida 32514, United States
| | - Alyssa G Albertson
- Department of Chemistry, University of West Florida, 11000 University Pkwy, Pensacola, Florida 32514, United States
| | - Christopher A Walter
- Department of Chemistry, University of West Florida, 11000 University Pkwy, Pensacola, Florida 32514, United States
| | - Prerna J Masih
- Department of Biology, University of West Florida, 11000 University Pkwy, Pensacola, Florida 32514, United States
| | - Tanay Kesharwani
- Department of Chemistry, University of West Florida, 11000 University Pkwy, Pensacola, Florida 32514, United States
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10
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Shen LY, Sun Y, Wang YQ, Li B, Yang WC, Dai P. K2S2O8-promoted radical trifluoromethylthiolation/spirocyclization for the synthesis of SCF3‑featured spiro[5,5]trienones. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132649] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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11
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Shi Y, Xiao T, Xia D, Yang W. SCF 3 Radical Initiated Cascade Reaction of Unsaturated Hydrocarbon. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202203041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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In Lee J. A review of the syntheses of (thio)flavones,
4‐quinolones
, (thio)aurones, and azaaurones from 2′‐substituted alkynones. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jae In Lee
- Department of Chemistry, College of Science and Technology Duksung Women's University Seoul Republic of Korea
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13
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Yang WC, Zhang MM, Sun Y, Chen CY, Wang L. Electrochemical Trifluoromethylthiolation and Spirocyclization of Alkynes with AgSCF 3: Access to SCF 3-Containing Spiro[5,5]trienones. Org Lett 2021; 23:6691-6696. [PMID: 34474567 DOI: 10.1021/acs.orglett.1c02260] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A novel and efficient strategy for trifluoromethylthiolation and dearomatization of activated alkynes with stable and readily available AgSCF3 has been developed. Reported herein is the unprecedented electrochemical generation of the SCF3 radical in the absence of persulfate for the synthesis of SCF3-containing spiro[5,5]trienones in good yields via a 6-exo-trig radical cyclization.
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Affiliation(s)
- Wen-Chao Yang
- Guangling College and School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, P. R. China.,Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, Jiangsu, P. R. China
| | - Ming-Ming Zhang
- Guangling College and School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, P. R. China
| | - Yu Sun
- Guangling College and School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, P. R. China
| | - Cai-Yun Chen
- Guangling College and School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, P. R. China
| | - Lei Wang
- 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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14
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Cai T, Shen F, Ni Y, Xu H, Shen R, Gao Y. Cascade Radical Annulation of 2-Alkynylthio(seleno)anisoles with Acetone or Acetonitrile: Synthesis of 3-Acetomethyl- or Cyanomethyl-Substituted Benzothio(seleno)phenes. J Org Chem 2021; 86:1002-1011. [PMID: 33284023 DOI: 10.1021/acs.joc.0c02444] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient method for the direct preparation of 3-aceto(cyano)methyl-substituted benzothio(seleno)phenes has been achieved through C(sp3)-H bond activation of easily available acetone or acetonitrile and cascade radical cyclization reaction. In this cascade radical cyclization reaction, C(sp2)-C(sp3) and C(sp2)-S bonds, as well as benzenethio(seleno)phene skeletons, can be built along with the cleavage of the C(sp3)-S bond, demonstrating the high step-economics and efficiency of this approach.
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Affiliation(s)
- Tao Cai
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Fangqi Shen
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yuqi Ni
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Huiting Xu
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Runpu Shen
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Yuzhen Gao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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15
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Feng ZW, Li J, Jiang YQ, Tian Y, Xu GQ, Shi X, Ding QJ, Li W, Ma CH, Yu B. Transition-metal-free sulfonylations of methylthiolated alkynones to synthesize 3-sulfonylated thioflavones. NEW J CHEM 2020. [DOI: 10.1039/d0nj03386c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A set of transition-metal-free NaI/TBHP-mediated sulfonylation cyclization reactions of methylthiolated alkynones with sulfonyl hydrazides was developed, by which various 3-sulfonylated thioflavones were prepared under mild reaction conditions.
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