1
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Fu L, Wang J, Chen X, Shi T, Shao Z, Chen J, Tian C, Zhou Z, Zhu H, Zhang J. [4+2]-Annulation of prop-2-ynylsulfonium salts and N-substituted pyrrole-2-carboxaldehydes: access to indolizines containing a thioether group. NEW J CHEM 2022. [DOI: 10.1039/d1nj04079k] [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
[4+2]-Annulation of prop-2-ynylsulfonium salts and N-substituted pyrrole-2-carboxaldehydes to generate indolizines containing a thioether group.
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Affiliation(s)
- Liping Fu
- Department of Pharmacy, Shaoxing TCM Hospital Affiliated to Zhejiang Chinese Medical University, Shaoxing, Zhejiang 312000, P. R. China
| | - Jing Wang
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, P. R. China
| | - Xiaojuan Chen
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, P. R. China
| | - Tao Shi
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, P. R. China
| | - Zhanying Shao
- Zhejiang Yongtai Technology Co., Ltd, Taizhou, Zhejiang 317016, P. R. China
| | - Jinbai Chen
- Department of Pharmacy, Shaoxing TCM Hospital Affiliated to Zhejiang Chinese Medical University, Shaoxing, Zhejiang 312000, P. R. China
| | - Chongmei Tian
- Department of Pharmacy, Shaoxing TCM Hospital Affiliated to Zhejiang Chinese Medical University, Shaoxing, Zhejiang 312000, P. R. China
| | - Zhongdong Zhou
- Department of Pharmacy, Shaoxing TCM Hospital Affiliated to Zhejiang Chinese Medical University, Shaoxing, Zhejiang 312000, P. R. China
| | - Huajian Zhu
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, P. R. China
| | - Jiankang Zhang
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, P. R. China
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2
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Gotsko MD, Saliy IV, Sobenina LN, Ushakov IA, Trofimov BA. Tosyl/pyrrolyl-capped 1,3-enynes via t-BuOK-assisted reaction of TosMIC with acylethynylpyrroles: a new feature of this popular reagent. NEW J CHEM 2022. [DOI: 10.1039/d2nj02827a] [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
1-Tosyl-4-pyrrolyl-1,3-enynes have been synthesized in 37–68% yields by t-BuOK-assisted chemo selective reaction (reflux in THF, 1 h) of 2-(acylethynyl)pyrroles with tosylmethylisocyanide (TosMIC), a widespread reagent, which here manifests a new functionality.
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Affiliation(s)
- Maxim D. Gotsko
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation
| | - Ivan V. Saliy
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation
| | - Lyubov’ N. Sobenina
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation
| | - Igor A. Ushakov
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation
| | - Boris A. Trofimov
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federation
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3
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Badaro JSA, Koszarna B, Bousquet M, Ouellette ET, Jacquemin D, Gryko DT. The Kröhnke synthesis of benzo[a]indolizines revisited: towards small, red light emitters. Org Chem Front 2022. [DOI: 10.1039/d2qo00097k] [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
Benzo[a]indolizines with an ordered arrangement of various electron-withdrawing substituents (NO2, CF3, CN, CO2R and COPh) were prepared directly from pyridinium salts and chloronitroarenes, allowing for refined control of the photophysical...
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4
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Chen Y, Shatskiy A, Liu JQ, Kärkäs MD, Wang XS. Silver-Promoted (4 + 1) Annulation of Isocyanoacetates with Alkylpyridinium Salts: Divergent Regioselective Synthesis of 1,2-Disubstituted Indolizines. Org Lett 2021; 23:7555-7560. [PMID: 34524832 DOI: 10.1021/acs.orglett.1c02754] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
An unprecedented silver-promoted regioselective (4 + 1) annulation of isocyanoacetates with pyridinium salts is reported. The established protocol provides controlled, facile, and modular access to a range of synthetically useful N-fused heterocyclic scaffolds containing indolizines, pyrrolo[1,2-a]quinolines, pyrrolo[2,1-a]isoquinolines, and 1H-imidazo[4,5-a]indolizin-2(3H)-ones. A mechanistic pathway involving nucleophilic addition/protonation/elimination/cycloisomerization is proposed.
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Affiliation(s)
- Yan Chen
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.,Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
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5
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Sar S, Guha S, Prabakar T, Maiti D, Sen S. Blue Light-Emitting Diode-Mediated In Situ Generation of Pyridinium and Isoquinolinium Ylides from Aryl Diazoesters: Their Application in the Synthesis of Diverse Dihydroindolizine. J Org Chem 2021; 86:11736-11747. [PMID: 34369766 DOI: 10.1021/acs.joc.1c01209] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Blue light-emitting diode-mediated environmentally sustainable three component reactions among pyridine/isoquinoline 1/2, aryl diazoesters 3, and acrylic ester/3-alkenyl oxindoles 5/6 provide various dihydroindolizines 7 to 9 in excellent yield. The principle of the strategy is photolytic generation of nitrogen ylides from N-heteroarenes and aryl diazoesters and their subsequent [3 + 2] cycloaddition reaction with dipolarophiles. Detailed mechanistic analysis of the transformation through control experiments establishes this strategy as the foundation for the photolytic multicomponent reaction.
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Affiliation(s)
- Saibal Sar
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University Dadri, Chithera, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Souvik Guha
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University Dadri, Chithera, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Tejas Prabakar
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University Dadri, Chithera, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Debajit Maiti
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University Dadri, Chithera, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Subhabrata Sen
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University Dadri, Chithera, Gautam Buddha Nagar, Uttar Pradesh 201314, India
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6
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Neto JSS, Zeni G. Recent Developments in the Cyclization of Alkynes and Nitrogen Compounds for the Synthesis of Indole Derivatives. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jose S. S. Neto
- Departamento de Química Universidade Federal de Santa Catarina Florianópolis Santa Catarina 88040-900 Brazil
| | - Gilson Zeni
- Department of Biochemistry and Molecular Biology Laboratório de Síntese Reatividade Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE Universidade Federal de Santa Maria Santa Maria Rio Grande do Sul 97105-900 Brazil
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7
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Salehi P, Tanbakouchian Z, Farajinia-Lehi N, Shiri M. Cascade synthesis of 2,4-disulfonylpyrroles by the sulfonylation/[2 + 3]-cycloaddition reactions of gem-dibromoalkenes with arylsulfonyl methyl isocyanides. RSC Adv 2021; 11:13292-13296. [PMID: 35423874 PMCID: PMC8697567 DOI: 10.1039/d0ra10451e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 03/16/2021] [Indexed: 10/11/2023] Open
Abstract
An efficient cascade reaction involving sulfonylation and [2 + 3]-cycloaddition reactions of gem-dibromoalkenes with arylsulfonyl methyl isocyanides was described for the synthesis of 3-aryl-2,4-disulfonyl-1H-pyrroles. The main highlight of this study is the introduction of a new dual-functional reactivity of arylsulfonyl methyl isocyanides as the sulfonyl source as well as a 1,3-dipolar reagent in the same reaction. This system is facilitated by Cs2CO3 mediation in DMSO and 100 °C conditions.
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Affiliation(s)
- Parvin Salehi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University Vanak Tehran 1993893973 Iran
| | - Zahra Tanbakouchian
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University Vanak Tehran 1993893973 Iran
| | - Noushin Farajinia-Lehi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University Vanak Tehran 1993893973 Iran
| | - Morteza Shiri
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University Vanak Tehran 1993893973 Iran
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8
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Zhang H, Wang M, Wu X, Zhu C. Heterocyclization Reagents for Rapid Assembly of N‐Fused Heteroarenes from Alkenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Huihui Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Min Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - 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 Jiangsu 215123 China
- Key Laboratory of Synthetic Chemistry of Natural Substances Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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9
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Nathaniel CR, Neetha M, Anilkumar G. Silver‐catalyzed pyrrole synthesis: An overview. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6141] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | - Mohan Neetha
- School of Chemical Sciences Mahatma Gandhi University Kottayam India
| | - Gopinathan Anilkumar
- School of Chemical Sciences Mahatma Gandhi University Kottayam India
- Advanced Molecular Materials Research Centre Mahatma Gandhi University Kottayam India
- Institute for Integrated Programmes and Research in Basic Sciences Mahatma Gandhi University Kottayam India
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10
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Su K, Guo X, Zhu L, Liu Y, Lu Y, Chen B. Indolizine synthesis via radical cyclization and demethylation of sulfoxonium ylides and 2-(pyridin-2-yl)acetate derivatives. Org Chem Front 2021. [DOI: 10.1039/d1qo00550b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel radical cross-coupling/cyclization of 2-(pyridin-2-yl)acetate derivatives and sulfoxonium ylides is developed, which provides a straightforward access to structurally diverse methylthio-substituted indolizine.
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Affiliation(s)
- Kexin Su
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Xin Guo
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan
- China
| | - Liangwei Zhu
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Yafeng Liu
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan
- China
| | - Yixuan Lu
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
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11
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Zhang H, Wang M, Wu X, Zhu C. Heterocyclization Reagents for Rapid Assembly of N-Fused Heteroarenes from Alkenes. Angew Chem Int Ed Engl 2020; 60:3714-3719. [PMID: 33140527 DOI: 10.1002/anie.202013089] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Indexed: 12/17/2022]
Abstract
N-Fused heterocycles are of particular use and upmost importance in multiple fields. Herein, we disclose a conceptually new approach for the rapid assembly of N-fused heteroarenes from alkenes. A portfolio of strategically designed heterocyclization reagents are readily prepared for the cascade reaction. A plethora of N-fused heteroarenes including seven types of heterocyclic core are furnished. The protocol features a broad functional-group compatibility and high product diversity, and provides a practical tool for late-stage heteroarene elaboration.
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Affiliation(s)
- Huihui Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Min Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - 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, Jiangsu, 215123, China.,Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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12
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Copper-catalyzed formation of indolizine derivatives via one-pot reactions of chalcones, benzyl bromides and pyridines. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Chen Y, Wu Y, Shatskiy A, Kan Y, Kärkäs MD, Liu JQ, Wang XS. Cooperative Silver- and Base-Catalyzed Diastereoselective Cycloaddition of Nitrones with Methylene Isocyanides: Access to 2-Imidazolinones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000437] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yan Chen
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
| | - Yijing Wu
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
| | - Andrey Shatskiy
- Department of Chemistry; KTH Royal Institute of Technology; 100 44 Stockholm Sweden
| | - Yuhe Kan
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials; School of Chemistry and Chemical Engineering; Huaiyin Normal University; 223300 Huaian PR China
| | - Markus D. Kärkäs
- Department of Chemistry; KTH Royal Institute of Technology; 100 44 Stockholm Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
- Department of Chemistry; KTH Royal Institute of Technology; 100 44 Stockholm Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science; Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University; 221116 Xuzhou Jiangsu China
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14
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Neto JSS, Zeni G. Transition Metal‐Catalyzed and Metal‐Free Cyclization Reactions of Alkynes with Nitrogen‐Containing Substrates: Synthesis of Pyrrole Derivatives. ChemCatChem 2020. [DOI: 10.1002/cctc.201902325] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jose S. S. Neto
- Departamento de QuímicaUniversidade Federal de Santa Catarina Florianópolis Santa Catarina 88040-900 Brazil
| | - Gilson Zeni
- Department of Biochemistry and Molecular Biology Laboratório de Síntese Reatividade Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNEUniversidade Federal de Santa Maria Santa Maria Rio Grande do Sul 97105-900 Brazil
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15
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Sivaguru P, Cao S, Babu KR, Bi X. Silver-Catalyzed Activation of Terminal Alkynes for Synthesizing Nitrogen-Containing Molecules. Acc Chem Res 2020; 53:662-675. [PMID: 32078302 DOI: 10.1021/acs.accounts.9b00623] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Alkynes are one of the most abundant chemicals in organic chemistry, and therefore the development of catalytic reactions to transform alkynes into other useful functionalities is of great value. In recent decades, extraordinary advances have been made in this area with transition-metal catalysis, and silver-based reagents are ideal for the activation of alkynes. This high reactivity is probably due to the superior π-Lewis acidic, carbophilic behavior of silver(I), allowing it to selectively activate carbon-carbon triple bonds (C≡C) through the formation of a silver-π complex. Within this field, we have been interested in the activation and subsequent reactions of readily accessible terminal alkynes for the synthesis of nitrogen-containing compounds, which has generally received less attention than methods involving internal alkynes. This is possibly due to the lack of suitable reactive reaction partners that are compatible under transition metals. Therefore, a thorough understanding of the factors that influence homogeneous silver catalysis and the identification of the appropriate reaction partners can provide a powerful platform for designing more efficient silver-catalyzed reactions of terminal alkynes. In this context, we envisioned that using readily available, environmentally benign, and inexpensive trimethylsilyl azide (TMSN3) or an isocyanide as the nitrogen-donor would be the key to develop novel reactions of terminal alkynes.This Account describes our efforts since 2013 toward the development of novel silver-catalyzed tandem reactions of terminal alkynes with either TMSN3 or isocyanides for the assembly of various nitrogen-containing compounds. The first section of this Account discusses the initial developments in the silver-catalyzed hydroazidation of terminal alkynes with TMSN3 and the subsequent advances made in our laboratory. We first describe the discovery and experimental and computational mechanistic investigations of silver-catalyzed hydroazidation reactions, which is the most efficient strategy reported to date for accessing vinyl azides. Mechanistic study of this hydroazidation reaction provides an alternative activation mode for terminal alkyne conversion in transition metal catalysis. We then present the chemistry of in situ generated vinyl azides, including one-pot tandem radical addition/cyclization or migration reactions of terminal alkynes to access a variety of nitrogen-containing molecules. Finally, we discuss the one-pot, multistep tandem hydroazidation and 1,2-azide migratory gem-difluorination of terminal alkynes for the synthesis of β-difluorinated alkyl azides. The second section describes the silver-catalyzed coupling reactions between terminal alkynes and isocyanides, which offer a straightforward method for accessing synthetically useful building blocks, such as pyrroles, allenamides, benzofuran, vinyl sulfones, indazolines, propiolonitriles, and pyrazoles. The high efficiency, mild conditions, low cost, broad substrate scope, high chemo- and regioselectivity, step economy, and ecofriendliness of the developed approaches make them attractive and practical. The progress in this area provides guiding principles for designing new reactions of terminal alkynes that can be extended to various nitrogen-containing molecules of interest to medicinal and materials chemists.
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Affiliation(s)
- Paramasivam Sivaguru
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Shanshan Cao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Kaki Raveendra Babu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
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16
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Shen X, Shatskiy A, Chen Y, Kärkäs MD, Wang XS, Liu JQ. Silver-Assisted [3 + 2] Annulation of Nitrones with Isocyanides: Synthesis of 2,3,4-Trisubstituted 1,2,4-Oxadiazolidin-5-ones. J Org Chem 2020; 85:3560-3567. [PMID: 32013428 PMCID: PMC7307928 DOI: 10.1021/acs.joc.9b03279] [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] [Indexed: 02/08/2023]
Abstract
![]()
A silver-assisted method for [3 +
2] annulation of nitrones with
isocyanides has been developed. The developed protocol allows access
to a variety of 2,3,4-trisubstituted 1,2,4-oxadiazolidin-5-one derivatives
as single diastereomers in good to excellent yields using silver oxide
as the catalyst and molecular oxygen as the terminal oxidant. A plausible
mechanism involving a nucleophilic addition/cyclization/protodeargentation/oxidation
pathway is proposed on the basis of experimental results.
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Affiliation(s)
- Xuanyu Shen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
| | - Yan Chen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.,Department of Chemistry, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
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17
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Lu CJ, Yu X, Chen YT, Song QB, Wang H. Indolizine synthesis via copper-catalyzed cyclization of gem-difluoroalkenes and 2-(pyridin-2-yl)acetate derivatives. Org Chem Front 2020. [DOI: 10.1039/d0qo00553c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A novel and versatile approach to construct substituted indolizines through copper-catalyzed coupling cyclization of 2-(pyridin-2-yl)acetate with gem-difluoroalkenes has been developed.
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Affiliation(s)
- Chuan-Jun Lu
- College of Chemistry and Chemical Engineering
- Qingdao University
- China
- College of Chemical Engineering
- Zhejiang University of Technology
| | - Xin Yu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Yu-Ting Chen
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Qing-Bao Song
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Hong Wang
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
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18
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Atar AB, Kang J, Jadhav AH. A [bmim]Cl-promoted domino protocol using an isocyanide-based [4+1]-cycloaddition reaction for the synthesis of diversely functionalized 3-alkylamino-2-alkyl/aryl/hetero-aryl indolizine-1-carbonitriles under solvent-free conditions. NEW J CHEM 2020. [DOI: 10.1039/c9nj05738b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A room temperature-based ionic liquid [bmim]Cl-catalyzed multicomponent coupling strategy for the synthesis of 3-alkylamino-2-alkyl/aryl/hetero-aryl indolizine-1-carbonitrile derivatives under mild conditions is shown.
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Affiliation(s)
- Amol Balu Atar
- Department of Chemistry
- Sejong University
- Seoul 143-747
- South Korea
| | - Jongmin Kang
- Department of Chemistry
- Sejong University
- Seoul 143-747
- South Korea
| | - Arvind H. Jadhav
- Centre for Nano and Material Science (CNMS)
- Jain University
- Bangalore 562112
- India
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19
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Abstract
Silver carbonate (Ag2CO3), a common transition metal-based inorganic carbonate, is widely utilized in palladium-catalyzed C–H activations as an oxidant in the redox cycle. Silver carbonate can also act as an external base in the reaction medium, especially in organic solvents with acidic protons. Its superior alkynophilicity and basicity make silver carbonate an ideal catalyst for organic reactions with alkynes, carboxylic acids, and related compounds. This review describes recent reports of silver carbonate-catalyzed and silver carbonate-mediated organic transformations, including cyclizations, cross-couplings, and decarboxylations.
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20
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Luo N, Li M, Wang T, Li Y, Wang C. Highly Efficient Synthesis of 1‐Nitroindolizine Derivatives via the DBU/Acetic Acid System. ChemistrySelect 2019. [DOI: 10.1002/slct.201902621] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Naili Luo
- School of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Street Yangzhou 225002 P. R. China
| | - Mingshuang Li
- School of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Street Yangzhou 225002 P. R. China
| | - Ting Wang
- School of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Street Yangzhou 225002 P. R. China
| | - Yanxiang Li
- School of PharmacyTaizhou Polytechnic College Taizhou 225300 P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Street Yangzhou 225002 P. R. China
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21
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Paluru DK, Mahesh S, Ahmad F, Vijaya Anand R. A Cascade Synthesis of Hetero‐arylated Triarylmethanes Through a Double 5‐
endo
‐dig Cyclization Sequence. Chem Asian J 2019; 14:4688-4695. [DOI: 10.1002/asia.201900960] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/03/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Dilip K. Paluru
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Sriram Mahesh
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Feroz Ahmad
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Ramasamy Vijaya Anand
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
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22
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Sun K, Si Y, Chen X, Lv Q, Jiang N, Wang S, Peng Y, Qu L, Yu B. Silver‐Catalyzed Radical Cascade Cyclization of Unactivated Alkenes towards Cyclopenta[
c
]quinolines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900691] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Kai Sun
- College of Chemistry, School of Life SciencesZhengzhou University Zhengzhou 450001 People's Republic of China
| | - Ya‐Feng Si
- College of Chemistry, School of Life SciencesZhengzhou University Zhengzhou 450001 People's Republic of China
| | - Xiao‐Lan Chen
- College of Chemistry, School of Life SciencesZhengzhou University Zhengzhou 450001 People's Republic of China
| | - Qi‐Yan Lv
- College of Chemistry, School of Life SciencesZhengzhou University Zhengzhou 450001 People's Republic of China
| | - Nan Jiang
- Beijing Institute of Technology Analysis & Testing Centre, College of Chemistry and Chemical EngineeringBeijing Institute of Technology Beijing 100081 People's Republic of China
| | - Shan‐Shan Wang
- Beijing Institute of Technology Analysis & Testing Centre, College of Chemistry and Chemical EngineeringBeijing Institute of Technology Beijing 100081 People's Republic of China
| | - Yu‐Yu Peng
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and TransportationChangsha University of Science & Technology Changsha 410114 People's Republic of China
| | - Ling‐Bo Qu
- College of Chemistry, School of Life SciencesZhengzhou University Zhengzhou 450001 People's Republic of China
| | - Bing Yu
- College of Chemistry, School of Life SciencesZhengzhou University Zhengzhou 450001 People's Republic of China
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and TransportationChangsha University of Science & Technology Changsha 410114 People's Republic of China
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23
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Liu JQ, Chen X, Shatskiy A, Kärkäs MD, Wang XS. Silver-Mediated Synthesis of Substituted Benzofuran- and Indole-Pyrroles via Sequential Reaction of ortho-Alkynylaromatics with Methylene Isocyanides. J Org Chem 2019; 84:8998-9006. [PMID: 31117557 DOI: 10.1021/acs.joc.9b00528] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A silver-mediated reaction between 2-ethynyl-3-(1-hydroxyprop-2-yn-1-yl)phenols or 2-ethynyl-3-(1-hydroxyprop-2-yn-1-yl)anilines and methylene isocyanides has been developed. A sequential 5-endo-dig cyclization and [3 + 2] cycloaddition process is proposed. This synthetic strategy is atom- and step-efficient and applicable to a broad scope of substrates, allowing the synthesis of valuable substituted benzofuran- and indole-pyrroles in moderate to high yields.
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Affiliation(s)
- Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials , Jiangsu Normal University , Xuzhou , Jiangsu 221116 , China.,Department of Chemistry , KTH Royal Institute of Technology , SE-100 44 Stockholm , Sweden
| | - Xinyi Chen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials , Jiangsu Normal University , Xuzhou , Jiangsu 221116 , China
| | - Andrey Shatskiy
- Department of Chemistry , KTH Royal Institute of Technology , SE-100 44 Stockholm , Sweden
| | - Markus D Kärkäs
- Department of Chemistry , KTH Royal Institute of Technology , SE-100 44 Stockholm , Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials , Jiangsu Normal University , Xuzhou , Jiangsu 221116 , China
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24
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Yi F, Zhao W, Wang Z, Bi X. Silver-Mediated [3 + 2] Cycloaddition of Alkynes and N-Isocyanoiminotriphenylphosphorane: Access to Monosubstituted Pyrazoles. Org Lett 2019; 21:3158-3161. [PMID: 30990050 DOI: 10.1021/acs.orglett.9b00860] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A silver-mediated [3 + 2] cycloaddition of "CNN" and "C≡C" for constructing pyrazoles has been described. The "CNN" building block used is N-isocyanoiminotriphenylphosphorane, which is a stable, safe, easy-to-handle, and odorless solid isocyanide. The reaction is characterized by its mild conditions, broad substrate scope, and excellent functional group tolerance.
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Affiliation(s)
- Fanhua Yi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Wanjun Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Zikun Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry , Northeast Normal University , Changchun 130024 , China.,State Key Laboratory of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , China
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25
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Liu J, Chen X, Shen X, Wang Y, Wang X, Bi X. Silver‐Catalyzed Sequential Cascade Reaction of Isocyanides with 1‐(2‐Ethynyl‐phenyl)‐prop‐2‐yn‐1‐ol: Access to Benzo[
b
]fluorenes and Benzofuran‐Pyrroles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801344] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jian‐Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xinyi Chen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xuanyu Shen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Yihan Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of ChemistryNortheast Normal University Changchun 130024 People's Republic of China
| | - Xiang‐Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of ChemistryNortheast Normal University Changchun 130024 People's Republic of China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 People's Republic of China
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26
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Mathiyazhagan AD, Anilkumar G. Recent advances and applications of p-toluenesulfonylmethyl isocyanide (TosMIC). Org Biomol Chem 2019; 17:6735-6747. [DOI: 10.1039/c9ob00847k] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
TosMIC, a unique and multifunctional synthetic reagent, reacts with a wide spectrum of synthons to deliver novel scaffolds.
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Affiliation(s)
| | - Gopinathan Anilkumar
- School of Chemical Sciences
- Mahatma Gandhi University
- Kottayam
- India
- Advanced Molecular Materials Research Centre (AMMRC)
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27
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Xiao K, Zhu C, Lin M, Song C, Chang J. Base-Promoted Cycloisomerization for the Synthesis of Indolizines and Related Heterocycles. ChemistrySelect 2018. [DOI: 10.1002/slct.201802620] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ke Xiao
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 China
| | - Congjun Zhu
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 China
| | - Maohua Lin
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 China
| | - Chuanjun Song
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 China
| | - Junbiao Chang
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation Henan Province; Zhengzhou 450001 China
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28
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Li X, Zhao J, Xie X, Liu Y. Synthesis of functionalized indolizines via gold(i)-catalyzed intramolecular hydroarylation/aromatization of pyrrole-ynes. Org Biomol Chem 2018; 15:8119-8133. [PMID: 28905974 DOI: 10.1039/c7ob02102j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A gold-catalyzed intramolecular hydroarylation/aromatization of pyrrole-ynes has been developed. This method provides a concise and straightforward route to functionalized indolizines through the construction of the pyridine ring of indolizines and also allows elaboration of its pyrrole moiety with or without functional groups. In addition, a wide variety of functional groups, such as aryl, alkenyl, alkynyl, pyridyl or thienyl groups, can be easily incorporated into the pyridine unit of the indolizine products under mild conditions. The utility of the indolizine products was demonstrated by their efficient transformations into various C3-functionalized indolizine derivatives.
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Affiliation(s)
- Xiangdong Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People's Republic of China.
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29
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Liu R, Wang Q, Wei Y, Shi M. Synthesis of indolizine derivatives containing eight-membered rings via a gold-catalyzed two-fold hydroarylation of diynes. Chem Commun (Camb) 2018; 54:1225-1228. [DOI: 10.1039/c7cc09250d] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel strategy for a gold(i)-catalyzed synthesis of indolizine derivatives containing eight-membered rings has been developed, which may have potential usefulness as blue or green OLEDs.
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Affiliation(s)
- Ruixing Liu
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
| | - Qiang Wang
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
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30
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Ning Y, Ji Q, Liao P, Anderson EA, Bi X. Silver-Catalyzed Stereoselective Aminosulfonylation of Alkynes. Angew Chem Int Ed Engl 2017; 56:13805-13808. [PMID: 28627090 PMCID: PMC5655761 DOI: 10.1002/anie.201705122] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Indexed: 01/12/2023]
Abstract
A silver-catalyzed intermolecular aminosulfonylation of terminal alkynes with sodium sulfinates and TMSN3 is reported. This three-component reaction proceeds through sequential hydroazidation of the terminal alkyne and addition of a sulfonyl radical to the resultant vinyl azide. The method enables the stereoselective synthesis of a wide range of β-sulfonyl enamines without electron-withdrawing groups on the nitrogen atom. These enamines are found to be suitable for a variety of further transformations.
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Affiliation(s)
- Yongquan Ning
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisDepartment of ChemistryNortheast Normal UniversityChangchun130024China
| | - Qinghe Ji
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisDepartment of ChemistryNortheast Normal UniversityChangchun130024China
| | - Peiqiu Liao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisDepartment of ChemistryNortheast Normal UniversityChangchun130024China
| | - Edward A. Anderson
- Chemistry Research LaboratoryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisDepartment of ChemistryNortheast Normal UniversityChangchun130024China
- State Key Laboratory of Elemento-Organic ChemistryNankai UniversityTianjin300071China
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31
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Mahesh S, Paluru DK, Ahmad F, Patil S, Kant G, Anand RV. Synthesis of Indolizine-Containing Diaryl- and Triarylmethanes through a Cu-Catalyzed Domino Cyclization of 2-(2-Enynyl)pyridines. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700419] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sriram Mahesh
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Dilip K. Paluru
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Feroz Ahmad
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Swati Patil
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Guddi Kant
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
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32
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Wu T, Chen M, Yang Y. Synthesis of Indolizines via Palladium Catalyzed Annulation of Propargyl Carbonates and 2-(Pyridin-2-yl)acetonitrile Derivatives. J Org Chem 2017; 82:11304-11309. [DOI: 10.1021/acs.joc.7b02278] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ting Wu
- State
Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang 550014, P. R. China
- The
Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, 3491 Baijin Road, Guiyang 550014, P. R. China
| | - Min Chen
- State
Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang 550014, P. R. China
- The
Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, 3491 Baijin Road, Guiyang 550014, P. R. China
| | - Yuzhu Yang
- State
Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang 550014, P. R. China
- The
Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, 3491 Baijin Road, Guiyang 550014, P. R. China
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33
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Chen R, Zhao Y, Sun H, Shao Y, Xu Y, Ma M, Ma L, Wan X. In Situ Generation of Quinolinium Ylides from Diazo Compounds: Copper-Catalyzed Synthesis of Indolizine. J Org Chem 2017; 82:9291-9304. [DOI: 10.1021/acs.joc.7b01042] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rongxiang Chen
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yanwei Zhao
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Hongmei Sun
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Ying Shao
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
- Jiangsu
Key Laboratory of Advanced Catalytic Materials and Technology, Advanced
catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, P. R. China
| | - Yudong Xu
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Meihua Ma
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Liang Ma
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xiaobing Wan
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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34
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Ning Y, Ji Q, Liao P, Anderson EA, Bi X. Silver-Catalyzed Stereoselective Aminosulfonylation of Alkynes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705122] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yongquan Ning
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; Changchun 130024 China
| | - Qinghe Ji
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; Changchun 130024 China
| | - Peiqiu Liao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; Changchun 130024 China
| | - Edward A. Anderson
- Chemistry Research Laboratory; University of Oxford; 12 Mansfield Road Oxford OX1 3TA UK
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; Changchun 130024 China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 China
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35
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Zhu C, Zhao P, Qiao Y, Xiao K, Song C, Chang J. Methylenecyclopropane Ring Formation/Opening Cascade for the Synthesis of Indolizines. J Org Chem 2017; 82:7045-7049. [DOI: 10.1021/acs.joc.7b01073] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Congjun Zhu
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Peng Zhao
- Department
of Chemistry, University of California, 1102 Natural Sciences II, Irvine, California 92697-2025, United States
| | - Yan Qiao
- Pathophysiology
Department, Basic Medical College of Zhengzhou University, 100 Science
Avenue, Zhengzhou 450001, China
| | - Ke Xiao
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Chuanjun Song
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Junbiao Chang
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Zhengzhou 450001, China
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36
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Wu X, Zhao P, Geng X, Zhang J, Gong X, Wu YD, Wu AX. Direct Oxidative Cleavage of Multiple Csp3–H Bonds and a C–C Bond in 2-(Pyridin-2-yl)acetate Derivatives: Formal [3 + 1 + 1] Synthesis of 3-(Pyridin-2-yl)indolizine Skeletons. Org Lett 2017; 19:3319-3322. [DOI: 10.1021/acs.orglett.7b01492] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xingxing Gong
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - An-xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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37
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Mahesh S, Anand RV. Cu-Catalyzed Hydrophosphonylation of 2-(2-Enynyl)pyridines: Easy Access to Indolizine-Containing Diarylmethylphosphonates. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700146] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Sriram Mahesh
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City 140306 S. A. S. Nagar, Manauli (PO) Punjab India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City 140306 S. A. S. Nagar, Manauli (PO) Punjab India
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38
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Meazza M, Leth LA, Erickson JD, Jørgensen KA. Indium(III)-catalyzed Aza-Conia-Ene Reaction for the Synthesis of Indolizines. Chemistry 2017; 23:7905-7909. [PMID: 28444826 DOI: 10.1002/chem.201701820] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Indexed: 01/03/2023]
Abstract
A new indium(III)-catalyzed reaction for the synthesis of a series of indolizine scaffolds has been developed. This methodology was highly efficient, allowing a low catalyst loading of 2 mol % (down to 0.5 mol %) and rendering the products in high yields through a 5-exo-dig aza-Conia-ene reaction. Furthermore, the possibility of incorporating an electrophile into the generated pyrrolidone ring in a one-pot synergistic fashion was demonstrated. Finally, based on experimental observations, a mechanism proposal was outlined.
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Affiliation(s)
- Marta Meazza
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
| | - Lars A Leth
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
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39
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Wu X, Li X, Yang C, Li B, Chen S. Copper-Catalyzed Multicomponent Amination/Alkynylative Cycloisomerization Cascade: Facile Access to Ferrocene-Containing Indolizine Derivatives. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700081] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xinxing Wu
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 People's Republic of China
| | - Xiaojie Li
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 People's Republic of China
| | - Chunyan Yang
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 People's Republic of China
| | - Baoguo Li
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 People's Republic of China
| | - Shufeng Chen
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 People's Republic of China
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40
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Mi P, Yuan H, Wang H, Liao P, Zhang J, Bi X. Divergent Reactions between α-Imino Rhodium Carbenoids and 1,3-Diketones: Substrate-Controlled O-H versus C-H Insertion. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Pengbing Mi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Haiyan Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Hannan Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Peiqiu Liao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Jingping Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; 300071 Tianjin China
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41
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42
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Zhang L, Sun G, Bi X. Rhodium/Silver-Cocatalyzed Transannulation of N-Sulfonyl-1,2,3-triazoles with Vinyl Azides: Divergent Synthesis of Pyrroles and 2 H-Pyrazines. Chem Asian J 2016; 11:3018-3021. [PMID: 27643511 DOI: 10.1002/asia.201601164] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Indexed: 11/05/2022]
Abstract
The first cyclization reaction between vinyl azides and N-sulfonyl-1,2,3-triazoles is reported. A Rh/Ag binary metal catalyst system proved to be necessary for the successful cyclization. By varying the structure of vinyl azides, such reaction allows the divergent synthesis of pyrroles and 2H-pyrazines. The cyclization reactions feature a broad substrate scope, good functional group tolerance, high reaction efficiency, and good to high product yields.
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Affiliation(s)
- Lin Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Ge Sun
- College of Pharmacy, Qiqihar Medical University, 333 Bukui Street, 161006, Qiqihar, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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43
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44
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Lu S, Zhu X, Li K, Guo YJ, Wang MD, Zhao XM, Hao XQ, Song MP. Reactivity of p-Toluenesulfonylmethyl Isocyanide: Iron-Involved C–H Tosylmethylation of Imidazopyridines in Nontoxic Media. J Org Chem 2016; 81:8370-7. [DOI: 10.1021/acs.joc.6b01552] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shuai Lu
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Ke Li
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Yu-Jing Guo
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Meng-Dan Wang
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xue-Mei Zhao
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
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45
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Wang H, Kumar RK, Yu Y, Zhang L, Liu Z, Liao P, Bi X. Silver-Catalyzed Isocyanide-Isocyanide [3+2] Cross-Cycloaddition Involving 1,2-Group Migration: Efficient Synthesis of Trisubstituted lmidazoles. Chem Asian J 2016; 11:2841-2845. [PMID: 27459607 DOI: 10.1002/asia.201601024] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Indexed: 01/01/2023]
Abstract
Imidazole ring is an important five-membered aromatic heterocycle that is widely present in natural products and synthetic molecules. The isocyanide-isocyanide [3+2] cross-cycloaddition reaction constitutes a straightforward method to access imidazoles starting from the easily available chemicals. So far, only three successive reports are known and all lead to the formation of 1,4-disubstituted imidazoles. Here, we report the first isocyanide-isocyanide [3+2] cross-cycloaddition reaction allowing for the formation of 1,4,5-trisubstituted imidazoles under silver catalysis. An unexpected 1,2-migration of sulfonyl, alkoxycaybonyl, and carbamoyl groups took place during the cyclization process that is responsible for the formation of trisubstituted imidazoles. This report displayed a mechanistically novel synthetic method toward a variety of imidazole derivatives, which are otherwise difficult to access by conventional methods.
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Affiliation(s)
- Hongwei Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Rapolu Kiran Kumar
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Yang Yu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Lin Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Zhaohong Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Peiqiu Liao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China. .,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China.
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46
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Reddy NNK, Donthiri RR, Ravi C, Adimurthy S. Iodine-catalyzed [3+2] cyclization of 2-pyridylesters and chalcones: metal-free approach for the synthesis of substituted indolizines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.083] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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47
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Investigation of the Pyridinium Ylide--Alkyne Cycloaddition as a Fluorogenic Coupling Reaction. Molecules 2016; 21:332. [PMID: 26978335 PMCID: PMC6273055 DOI: 10.3390/molecules21030332] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 11/17/2022] Open
Abstract
The cycloaddition of pyridinium ylides with alkynes was investigated under mild conditions. A series of 13 pyridinium salts was prepared by alkylation of 4-substituted pyridines. Their reactivity with propiolic ester or amide in various reaction conditions (different temperatures, solvents, added bases) was studied, and 11 indolizines, with three points of structural variation, were, thus, isolated and characterized. The highest yields were obtained when electron-withdrawing groups were present on both the pyridinium ylide, generated in situ from the corresponding pyridinium salt, and the alkyne (X, Z = ester, amide, CN, carbonyl, etc.). Electron-withdrawing substituents, lowering the acid dissociation constant (pKa) of the pyridinium salts, allow the cycloaddition to proceed at pH 7.5 in aqueous buffers at room temperature.
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48
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Reddy NNK, Mohan DC, Adimurthy S. Metal-free synthesis of indolizines through oxidative C C and C N bond formations of C (sp 3 ) H bonds. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.01.082] [Citation(s) in RCA: 16] [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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49
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Zhou NN, Zhu HT, Yang DS, Guan ZH. Recent developments in the group-1B-metal-catalyzed synthesis of pyrroles. Org Biomol Chem 2016; 14:7136-49. [DOI: 10.1039/c6ob00962j] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Pyrroles are important synthetic targets as a result of their occurrence in numerous biologically active molecules, their important roles in diverse living processes, and their utility as versatile intermediates.
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Affiliation(s)
- Ni-Ni Zhou
- Shannxi Key Laboratory of Phytochemistry
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Hai-Tao Zhu
- Shannxi Key Laboratory of Phytochemistry
- Baoji University of Arts and Sciences
- Baoji 721013
- China
- Key Laboratory of Synthesis and Natural Functional Molecule Chemistry of Ministry of Education
| | - De-Suo Yang
- Shannxi Key Laboratory of Phytochemistry
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Zheng-Hui Guan
- Key Laboratory of Synthesis and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an 710127
- China
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50
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Kumar RK, Bi X. Catalytic σ-activation of carbon–carbon triple bonds: reactions of propargylic alcohols and alkynes. Chem Commun (Camb) 2016; 52:853-68. [DOI: 10.1039/c5cc08386a] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variety of organic transformations have been developed based on conceptually novel catalytic σ-activation of CC bonds of alkynes.
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Affiliation(s)
- Rapolu Kiran Kumar
- Department of Chemistry
- Northeast Normal University
- 130024 Changchun
- P. R. China
| | - Xihe Bi
- Department of Chemistry
- Northeast Normal University
- 130024 Changchun
- P. R. China
- State Key Laboratory of Elemento-Organic Chemistry
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