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Yang K, Li Z, Sheng Y, Deng J, Song Y, Liu Z, Jia A. Construction of CF
3
‐containing Oxepino[2,3‐
c
]pyrazole Motif via Sulfur Ylide‐mediated Annulation or Me
2
S involved One‐pot Reaction. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100494] [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)
- Kaichuan Yang
- Jinhua Branch Sichuan Industrial Institute of Antibiotics Chengdu University Chengdu 610106 P. R. China
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 P. R.China
| | - Zhi Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 P. R.China
| | - Yiqun Sheng
- Jinhua Branch Sichuan Industrial Institute of Antibiotics Chengdu University Chengdu 610106 P. R. China
| | - Junfeng Deng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 P. R.China
| | - Yanxia Song
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 P. R.China
| | - Zhenxiang Liu
- College of Pharmacy Jinhua Polytechnic Jinhua 321007 P. R. China
| | - Aiqiong Jia
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 P. R.China
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2
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Fei X, Zhao Y, Yang F, Guan X, Li Z, Wang D, Zhou M, Yang Y, He B. Construction of Oxepino[3,2‐
b
]indoles via [4+3] Annulation of 2‐Ylideneoxindoles with Crotonate‐Derived Sulfur Ylides. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001580] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xing‐Hai Fei
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 People's Republic of China
| | - Yong‐Long Zhao
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 People's Republic of China
| | - Fen‐Fen Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 People's Republic of China
| | - Xiang Guan
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 People's Republic of China
| | - Zong‐Qin Li
- Department of Neurology Sichuan Mianyang 404 Hospital Mianyang 621000 People's Republic of China
| | - Da‐Peng Wang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control Ministry of Education Guizhou Medical University Guiyang 550025 People's Republic of China
| | - Meng Zhou
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 People's Republic of China
| | - Yuan‐Yong Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 People's Republic of China
| | - Bin He
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 People's Republic of China
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3
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Kaur BP, Kaur J, Chimni SS. Arenesulfonyl indole: new precursor for diversification of C-3 functionalized indoles. RSC Adv 2021; 11:2126-2140. [PMID: 35424187 PMCID: PMC8693840 DOI: 10.1039/d0ra09133b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/16/2020] [Indexed: 12/11/2022] Open
Abstract
Arenesulfonyl indoles, bearing a good leaving group, are effective precursors for vinylogous imine intermediates which are generated in situ under basic conditions. This intermediate can readily react with other nucleophilic reagents to obtain C-3 substituted indole derivatives. In the last few years, a plethora of exciting synthetic applications of this substrate have been exploited. The stability of arylsulfonyl-containing substrates, mild reaction conditions, and the large variety of nucleophiles involved in these procedures are the key to their success in organic synthesis.
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Affiliation(s)
- Banni Preet Kaur
- Department of Chemistry, U.G.C. Centre of Advance Study-II, Guru Nanak Dev University Amritsar Punjab India
| | - Jasneet Kaur
- Post-Graduate Department of Chemistry, Khalsa College Amritsar Punjab India
| | - Swapandeep Singh Chimni
- Department of Chemistry, U.G.C. Centre of Advance Study-II, Guru Nanak Dev University Amritsar Punjab India
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4
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Parameshwar M, Singam MKR, Nagireddy A, Nanubolu JB, Reddy MS. Regioselective benzannulation of allylic sulfur ylides with ynones: a rapid access to substituted thioanisoles. Chem Commun (Camb) 2020; 56:13457-13460. [PMID: 33047759 DOI: 10.1039/d0cc05436d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The efficiency and selectivity of annulation reactions are often difficult to control in the presence of multiple potential reactive centers, like in the case of allylic sulfur ylides (ASY). Here, we describe a novel base mediated [3+3] benzannulation of ASY and readily available alkynones, which accomplishes the regioselective formation of multisubstituted thioanisoles, highly sought after chemical scaffolds. A new reactivity pattern of ASY has been unearthed, where it acted as both a 3C component and sulfur source in benzannulation. Use of a widely available base, operational simplicity and broad substrate scope are the additional salient features of the conversion.
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Affiliation(s)
- Matam Parameshwar
- Department of OSPC, CSIR-Indian Institute of Chemical Technology, Habsiguda, Hyderabad 500007, India.
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5
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Shen J, Yang Y, Hou X, Zeng W, Yu A, Zhao X, Meng X. Darzens reaction of thioisatins and sulfonium salts: approach to the synthesis of thiochromenone derivatives with anticancer potency. Org Biomol Chem 2018; 16:3487-3494. [PMID: 29691546 DOI: 10.1039/c8ob00402a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new Darzens reaction of thioisatins and sulfonium salts has, for the first time, been reported. This reaction allows efficient access to thiochromenone derivatives in good to excellent yields under mild reaction conditions. The substrate scope includes both electron-withdrawing and electron-donating groups on both the thioisatins and sulfonium salts. Moreover, some of the synthesized thiochromenone derivatives have been found to show potent anticancer activities against six different cancer cell lines using the methylthiazoltetrazolium (MTT) assay.
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Affiliation(s)
- Jinhui Shen
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China.
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6
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Ma S, Yu A, Meng X. Phosphine-catalyzed [4 + 2] annulation of γ-benzyl allenoates: facile synthesis of benzothieno[3,2-b]pyran derivatives. Org Biomol Chem 2018; 16:2885-2892. [DOI: 10.1039/c8ob00004b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An efficient tris(4-methoxyphenyl)phosphane catalyzed domino reaction between γ-benzyl allenoate and ethyl (Z)-2-(3-oxobenzo[b]thiophen-2(3H)-ylidene)acetate has been developed, which produces a series of 2H-benzo[4,5]thieno[3,2-b]pyran derivatives in high yields.
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Affiliation(s)
- Shanshan Ma
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
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7
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Jia J, Yu A, Ma S, Zhang Y, Li K, Meng X. Solvent-Controlled Switchable Domino Reactions of MBH Carbonate: Synthesis of Benzothiophene Fused α-Pyran, 2,3-Dihydrooxepine, and Oxatricyclodecene Derivatives. Org Lett 2017; 19:6084-6087. [DOI: 10.1021/acs.orglett.7b02916] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jiru Jia
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Shanshan Ma
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Youquan Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Ke Li
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
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8
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Du Y, Yu A, Jia J, Zhang Y, Meng X. Direct N–H/α,α,β,β-C(sp3)–H functionalization of piperidine via an azomethine ylide route: synthesis of spirooxindoles bearing 3-substituted oxindoles. Chem Commun (Camb) 2017; 53:1684-1687. [DOI: 10.1039/c6cc08996h] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A protocol for the direct functionalization of N–H/α,α,β,β-C(sp3)–H of piperidine without any metal or external oxidants is reported.
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Affiliation(s)
- Yanlong Du
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Jiru Jia
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Youquan Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering Tianjin University of Technology
- Tianjin 300384
- P. R. China
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Zhang Y, Yu A, Jia J, Ma S, Li K, Wei Y, Meng X. NaH promoted [4+3] annulation of crotonate-derived sulfur ylides with thioaurones: synthesis of 2,5-dihydrobenzo[4,5]thieno[3,2-b]oxepines. Chem Commun (Camb) 2017; 53:10672-10675. [DOI: 10.1039/c7cc04466f] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The [4+3] annulation reaction of crotonic acid derivative sulfur ylides with thioaurones has, for the first time, been reported using NaH as the base. A diverse array of 2,5-dihydrobenzo[4,5]thieno[3,2-b]oxepines is obtained in good to excellent yields. The proposed mechanism is investigated and supported by DFT calculations.
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Affiliation(s)
- Youquan Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Jiru Jia
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Shanshan Ma
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Ke Li
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
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