1
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Kumar MP, G M, Amaladass P, Manikandan C, Dhayalan V. Recent synthetic strategies for the construction of functionalized carbazoles and their heterocyclic motifs enabled by Lewis acids. RSC Adv 2023; 13:32596-32626. [PMID: 37936643 PMCID: PMC10626344 DOI: 10.1039/d3ra06396h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 10/25/2023] [Indexed: 11/09/2023] Open
Abstract
This article demonstrates recent innovative cascade annulation methods for preparing functionalized carbazoles and their related polyaromatic heterocyclic compounds enabled by Lewis acid catalysts. Highly substituted carbazole scaffolds were synthesized via Lewis acid mediated Friedel-Crafts arylation, electrocyclization, intramolecular cyclization, cycloaddition, C-N bond-formations, aromatization and cascade domino reactions, metal-catalyzed, iodine catalyzed reactions and multi-component reactions. This review article mainly focuses on Lewis acid-mediated recent synthetic methods to access a variety of electron-rich and electron-poor functional groups substituted carbazole frameworks in one-pot reactions. Polyaromatic carbazole and their related nitrogen-based heterocyclic compounds were found in several synthetic applications in pharma industries, energy devices, and materials sciences. Moreover, the review paper briefly summarised new synthetic strategies of carbazole preparation approaches will assist academic and pharma industries in identifying innovative protocols for producing poly-functionalized carbazoles and related highly complex heterocyclic compounds and discovering active pharmaceutical drugs or carbazole-based alkaloids and natural products.
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Affiliation(s)
- Marappan Pradeep Kumar
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
| | - Mahantesh G
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
| | - P Amaladass
- Department of Chemistry, Madanapalle Institute of Technology & Science Madanapalle 517325 Andhra Pradesh India
| | - Chitrarasu Manikandan
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
| | - Vasudevan Dhayalan
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
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2
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Suresh S, Kavala V, Yao CF. Iodine-Catalyzed Annulation Reaction of Ortho-Formylarylketones with Indoles: A General Strategy for the Synthesis of Indolylbenzo[ b]carbazoles. J Org Chem 2023; 88:3666-3677. [PMID: 36890622 DOI: 10.1021/acs.joc.2c02868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
The iodine-catalyzed cascade reaction of ortho-formylarylketones with indoles for the synthesis of indolylbenzo[b]carbazoles is reported. The reaction is initiated in the presence of iodine by two successive nucleophilic additions of indoles with an aldehyde group of ortho-formylarylketones, and the ketone does not undergo a nucleophilic addition and only involves in the Friedel-Crafts-type cyclization. A variety of substrates are tested, and the efficiency of this reaction is demonstrated with gram-scale reactions.
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Affiliation(s)
- Sundaram Suresh
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, Taiwan, R.O.C
| | - Veerababurao Kavala
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, Taiwan, R.O.C
| | - Ching-Fa Yao
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, Taiwan, R.O.C
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3
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Yu M, Jin T, Wang X, Li H, Ji D, Yao J, Zeng H, Shi S, Xu K, Zhang L. Regioselective intramolecular cyclization of o-alkynyl arylamines with the in situ formation of ArXCl to construct poly-functionalized 3-selenylindoles. RSC Adv 2023; 13:6210-6216. [PMID: 36825294 PMCID: PMC9941895 DOI: 10.1039/d3ra00030c] [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: 01/03/2023] [Accepted: 02/15/2023] [Indexed: 02/23/2023] Open
Abstract
In this article, a practical and metal-free method for the synthesis of poly-functionalized 3-selenyl/sulfenyl/telluriumindoles from o-alkynyl arylamines has been achieved. In this protocol, the in situ formation of selenenyl chloride, sulfenyl chloride or tellurenyl chloride is considered as the key intermediate and the 3-selenyl/sulfenyl/telluriumindoles can be obtained in good to excellent yields. Furthermore, the product 2-phenyl-3-(phenylselanyl)-1-tosyl-1H-indole can be selectively oxidized to compounds 2-phenyl-3-(phenylseleninyl)-1-tosyl-1H-indole and 2-phenyl-3-(phenylselenonyl)-1-tosyl-1H-indole in good yields.
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Affiliation(s)
- Minhui Yu
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China .,College of Biological, Chemical Sciences and Engineering, Jiaxing University Jiaxing 314001 Zhejiang China
| | - Tao Jin
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | | | - Haohu Li
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | - Decai Ji
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | - Jinzhong Yao
- College of Biological, Chemical Sciences and Engineering, Jiaxing University Jiaxing 314001 Zhejiang China
| | - Heyang Zeng
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | - Senlei Shi
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | - Kaimeng Xu
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | - Lianpeng Zhang
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
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4
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Sohail M, Bilal M, Maqbool T, Rasool N, Ammar M, Mahmood S, Malik A, Zubair M, Abbas Ashraf G. Iron-catalyzed synthesis of N-heterocycles via intermolecular and intramolecular cyclization reactions: A review. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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5
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Li X, Zhang B, Zhang J, Wang X, Zhang D, Du Y, Zhao K. Synthesis of
3‐Methylthioindoles
via
Intramolecular Cyclization of
2‐Alkynylanilines
Mediated by
DMSO
/
DMSO
‐
d
6
and
SOCl
2
. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000701] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xuemin Li
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency, School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072, China State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University Qingdao Shandong 266237 China
| | - Beibei Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency, School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072, China State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University Qingdao Shandong 266237 China
| | - Jingran Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency, School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072, China State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University Qingdao Shandong 266237 China
| | - Xi Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency, School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072, China State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University Qingdao Shandong 266237 China
| | - Dongke Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency, School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072, China State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University Qingdao Shandong 266237 China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency, School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072, China State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University Qingdao Shandong 266237 China
| | - Kang Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency, School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072, China State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University Qingdao Shandong 266237 China
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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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Wang D, Wang S, Hao W, Tu S, Jiang B. Selective Syntheses of Benzo[
b
]carbazoles and C3‐Substituted Indoles
via
Tunable Catalytic Annulations of
β
‐Alkynyl Ketones with Indoles. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000491] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Dan Wang
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Shi‐Chao Wang
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Wen‐Juan Hao
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Shu‐Jiang Tu
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Bo Jiang
- School of Chemistry and Material Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal University Xuzhou 211116 People's Republic of China
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8
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Garkhedkar AM, Gore BS, Hu WP, Wang JJ. Lewis Acid Catalyzed Atom-Economic Synthesis of C2-Substituted Indoles from o-Amido Alkynols. Org Lett 2020; 22:3531-3536. [PMID: 32275448 DOI: 10.1021/acs.orglett.0c00971] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Herein we have disclosed a Zn(OTf)2 catalyzed synthesis of C2-alkyl substituted indole derivatives via unprecedented carbonyl group migration from o-amido alkynols. The key features of this protocol involve N,O-carbonyl group migration, broad substrate scope with varied functionality tolerance, moderate to good yields, and 100% atom economy. The crossover experiments proved that the migration is happening via an intramolecular pathway.
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Affiliation(s)
- Amol Milind Garkhedkar
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan
| | - Babasaheb Sopan Gore
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan
| | - Wan-Ping Hu
- Department of Biotechnology, Kaohsiung Medical University, No. 100 Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, No. 100 Tzyou First Road, Sanmin District, Kaohsiung City 807, Taiwan
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9
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Sunke R, Kalyani A, Swamy KCK. Cu(I)-Catalyzed Ligand-Free Tandem One-Pot or Sequential Annulation via Knoevenagel Intermediates: An Entry into Multifunctional Naphthalenes, Phenanthrenes, Quinolines, and Benzo[ b]carbazoles. J Org Chem 2020; 85:1073-1086. [PMID: 31823603 DOI: 10.1021/acs.joc.9b02991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A simple but efficient one-pot or sequential copper-catalyzed protocol using 2-bromoaldehydes and active methylene group containing substrates that affords multifunctional naphthalenes, phenanthrenes, quinolines, and benzo[b]carbazoles via Knoevenagel condensation, C-arylation, and decarboxylation, followed by aromatization, is developed. The reaction utilizes the potential of Knoevenagel intermediates and does not require any ancillary ligand. The phenanthrene products thus obtained show moderate fluorescence activity. Structural elaboration of the products to obtain dihydrobenzoquinazolines is also highlighted.
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Affiliation(s)
- Rajnikanth Sunke
- School of Chemistry , University of Hyderabad , Hyderabad 500046 , Telangana , India
| | - Adula Kalyani
- School of Chemistry , University of Hyderabad , Hyderabad 500046 , Telangana , India
| | - K C Kumara Swamy
- School of Chemistry , University of Hyderabad , Hyderabad 500046 , Telangana , India
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10
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Flynn AJ, Ford A, Maguire AR. Synthetic and mechanistic aspects of sulfonyl migrations. Org Biomol Chem 2020; 18:2549-2610. [DOI: 10.1039/c9ob02587a] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Sulfonyl migrations, frequently described as ‘unusual’ or ‘unexpected’, from the last 20 years, including 1,2-, 1,3-, 1,4-, 1,5-, 1,6- and 1,7-sulfonyl shifts, through either radical or polar processes, either inter- or intramolecularly are reviewed.
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Affiliation(s)
- Aaran J. Flynn
- School of Chemistry
- Analytical and Biological Research Facility
- Synthesis and Solid State Pharmaceutical Centre
- University College Cork
- Cork
| | - Alan Ford
- School of Chemistry
- Analytical and Biological Research Facility
- University College Cork
- Cork
- Ireland
| | - Anita R. Maguire
- School of Chemistry and School of Pharmacy
- Analytical and Biological Research Facility
- Synthesis and Solid State Pharmaceutical Centre
- University College Cork
- Cork
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11
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Dhandabani GK, Mutra MR, Wang JJ. FeCl3-Promoted ring size-dictating diversity-oriented synthesis (DOS) of N-heterocycles using in situ-generated cyclic imines and enamines. Chem Commun (Camb) 2019; 55:7542-7545. [DOI: 10.1039/c9cc03375k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The FeCl3-promoted ring size-controlled oxidative activation of o-alkynylanilines opens up a complementary appealing protocol for poly-N-heterocycle synthesis.
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Affiliation(s)
- Ganesh Kumar Dhandabani
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung City 807
- Taiwan
| | - Mohana Reddy Mutra
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung City 807
- Taiwan
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung City 807
- Taiwan
- Department of Medical Research
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12
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Poudel TN, Karanjit S, Khanal HD, Tamargo RJI, Lee YR. Cu(I)-/Base-Mediated Domino [5 + 3 + 1] Annulation for Highly π-Extended Carbazole Frameworks and DFT Mechanistic Insights. Org Lett 2018; 20:5648-5652. [DOI: 10.1021/acs.orglett.8b02363] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tej Narayan Poudel
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Sangita Karanjit
- Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Hari Datta Khanal
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | | | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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13
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Ogawa N, Yamaoka Y, Takikawa H, Tsubaki K, Takasu K. Synthesis and Properties of Tribenzocarbazoles via an Acid-Promoted Retro (2+2)-Cycloaddition of Azapropellanes. J Org Chem 2018; 83:7994-8002. [DOI: 10.1021/acs.joc.8b00870] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Naoki Ogawa
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yousuke Yamaoka
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiroshi Takikawa
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kazunori Tsubaki
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogano, Sakyo-ku, Kyoto 606-8522, Japan
| | - Kiyosei Takasu
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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14
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Stukalov A, Suslonov VV, Kuznetsov MA. Thermal Ring Expansion of 2-Sulfonylimidoyl-1-phthalimidoaziridines into N
-Sulfonylimidazoles. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701806] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Aleksandr Stukalov
- Institute of Chemistry; Saint Petersburg State University; Universitetskii pr. 26 198504 Saint Petersburg Russia
| | - Vitalii V. Suslonov
- Center for X-ray Diffraction Studies; Saint Petersburg State University; Universitetskii pr. 26 198504 Saint Petersburg Russia
| | - Mikhail A. Kuznetsov
- Institute of Chemistry; Saint Petersburg State University; Universitetskii pr. 26 198504 Saint Petersburg Russia
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15
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Ganesan B, Senadi GC, Guo BC, Hung MY, Lin WY. A copper(ii)-catalyzed annulative formylation of o-alkynylanilines with DMF: a single-step strategy for 3-formyl indoles. RSC Adv 2018; 8:40968-40973. [PMID: 35557929 PMCID: PMC9092273 DOI: 10.1039/c8ra09214a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 11/30/2018] [Indexed: 11/21/2022] Open
Abstract
In this paper, a copper(ii)-catalyzed reaction of o-alkynylanilines with dimethylformamide (DMF) in the presence of oxygen has been developed for synthesizing multisubstituted 3-formyl indole scaffolds.
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Affiliation(s)
- Balaji Ganesan
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 807
- Taiwan
| | - Gopal Chandru Senadi
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 807
- Taiwan
- Department of Chemistry
| | - Bing-Chun Guo
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 807
- Taiwan
| | - Min-Yuan Hung
- Center for Research Resources and Development
- Kaohsiung Medical University
- Kaohsiung 807
- Taiwan
| | - Wei-Yu Lin
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 807
- Taiwan
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16
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Rapid Access to Indeno[1,2-c
]quinolines via
Brønsted Acid- Catalyzed Cascade Reaction. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700190] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Garkhedkar AM, Senadi GC, Wang JJ. ZnBr2-Mediated Cascade Reaction of o-Alkoxy Alkynols: Synthesis of Indeno[1,2-c]chromenes. Org Lett 2017; 19:488-491. [DOI: 10.1021/acs.orglett.6b03642] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Amol Milind Garkhedkar
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100 Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan
| | - Gopal Chandru Senadi
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100 Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan
| | - Jeh-Jeng Wang
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100 Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan
- Department
of Medical Research, Kaohsiung Medical University Hospital, No. 100 Tzyou
First Road, Sanmin District, Kaohsiung City 807, Taiwan
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18
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Kumar Boominathan SS, Reddy MM, Hou RJ, Chen HF, Wang JJ. A simple and efficient method for constructing azepino[4,5-b]indole derivatives via acid catalysis. Org Biomol Chem 2017; 15:1872-1875. [DOI: 10.1039/c6ob02722a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A new and efficient synthetic methodology has been developed to prepare azepino[4,5-b]indole derivatives under Brønsted acid catalysis.
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Affiliation(s)
| | - Mutra Mohana Reddy
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| | - Ruei-Jhih Hou
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| | - Hui-Fen Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
- Department of Medical Research
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19
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Synthesis of Cyclo[b]fused Carbazoles via SnCl4-Mediated Domino Reaction of 2-Indolylmethylpivalates with Arenes and Heteroarenes. J Org Chem 2016; 81:8633-46. [DOI: 10.1021/acs.joc.6b01646] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Boominathan SSK, Hou RJ, Hu WP, Huang PJ, Wang JJ. A Palladium-Catalyzed Domino Approach to 2,3-Disubstituted Benzofuransviaan Intermolecular Carbopalladation/C(sp3)−H Functionalization/Isomerization Sequence. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600356] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Ruei-Jhih Hou
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; Kaohsiung 80708 Taiwan
| | - Wan-Ping Hu
- Department of Biotechnology; Kaohsiung Medical University; Kaohsiung 80708 Taiwan
| | - Po-Jui Huang
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; Kaohsiung 80708 Taiwan
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; Kaohsiung 80708 Taiwan
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21
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Kondoh A, Tran HTQ, Kimura K, Terada M. Enantioselective intramolecular cyclization of alkynyl esters catalyzed by a chiral Brønsted base. Chem Commun (Camb) 2016; 52:5726-9. [PMID: 27043300 DOI: 10.1039/c6cc01690a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective intramolecular cyclization reaction of alkynyl esters was developed, which employs a Brønsted base catalyst generated in situ from a chiral Schiff base and t-BuOK. This reaction is a rare example of the enantioselective intramolecular addition of simple ester enolates to alkynes under Brønsted base catalysis.
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Affiliation(s)
- Azusa Kondoh
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan.
| | - Hoa Thi Quynh Tran
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Kyoko Kimura
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Masahiro Terada
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan. and Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
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22
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Ranjith Kumar G, Kiran Kumar Y, Kant R, Sridhar Reddy M. Synthesis of benzofuranyl and indolyl methyl azides by tandem silver-catalyzed cyclization and azidation. Org Biomol Chem 2016; 14:4077-88. [PMID: 27064507 DOI: 10.1039/c6ob00191b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A tandem Ag-catalyzed 5-exo-dig cyclization and catalyst free γ-azidation for benzofuranyl/indolyl methyl azides is presented. The adducts are further transformed to useful triazole-, tetrazole-, amide-, amine-, and pyrido-derivatives.
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Affiliation(s)
- Gadi Ranjith Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Yalla Kiran Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Ruchir Kant
- Molecular & Structural Biology Division
- CSIR-CDRI
- Lucknow 226031
- India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
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23
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Boominathan SSK, Wang JJ. A Palladium- and Copper-Catalyzed Synthesis of Dihydro[1,2-b]indenoindole-9-ol and Benzofuro[3,2-b]indolines: Metal-Controlled Intramolecular CC and CO Bond-Forming Reactions. Chemistry 2015; 21:17044-50. [DOI: 10.1002/chem.201503210] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Indexed: 11/11/2022]
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24
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Nxumalo W, Dinsmore A. Magnesiation of N-Heterocycles Using i-PrMgCl · LiCl and Catalytic Diisopropylamine. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1090607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Xin X, Wang H, Li X, Wang D, Wan B. Base-Catalyzed Selective Synthesis of 2-Azabicyclo[3.2.0]hept-2-enes and Sulfonyl Vinyl-Substituted Pyrroles from 3-Aza-1,5-enynes. Org Lett 2015; 17:3944-7. [PMID: 26251020 DOI: 10.1021/acs.orglett.5b01474] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A base-catalyzed selective cycloisomerization of 3-aza-1,5-enynes is developed. This transformation provides a facile access to highly functionalized 2-azabicyclo[3.2.0]hept-2-enes and sulfonyl vinyl-substituted pyrroles. The chemoselectivity was controlled by the substituent pattern of the substrates.
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Affiliation(s)
- Xiaoyi Xin
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Haolong Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Xincheng Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Dongping Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Boshun Wan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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26
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Vandavasi JK, Hsiao CT, Hu WP, Boominathan SSK, Wang JJ. Silver(I)-Catalyzed Tandem Approach to β-Oxo Amides. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500224] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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27
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Copper-catalyzed selective C_O bond formation by oxidative α-C(sp3)_H/O_H coupling between ethers and salicylaldehydes. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.02.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Ponra S, Vitale MR, Michelet V, Ratovelomanana-Vidal V. HNTf2-Catalyzed Regioselective Preparation of Polysubstituted Naphthalene Derivatives Through Alkyne–Aldehyde Coupling. J Org Chem 2015; 80:3250-7. [DOI: 10.1021/acs.joc.5b00353] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sudipta Ponra
- PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France
| | - Maxime R. Vitale
- PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France
| | - Véronique Michelet
- PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France
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