1
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Han J, Yang Y, Gong Y, Tang X, Tian Y, Li B. Divergent access to 5,6,7-perifused cycles. Nat Commun 2023; 14:5148. [PMID: 37620317 PMCID: PMC10449863 DOI: 10.1038/s41467-023-40801-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/10/2023] [Indexed: 08/26/2023] Open
Abstract
Nitrogen-containing heterocycles are the key components in many pharmaceuticals and functional materials. In this study, we report a transition metal-catalyzed high-order reaction sequence for synthesizing a structurally unique N-center 5,6,7-perifused cycle (NCPC). The key characteristics include the formation of a seven-membered ring by the 8π electrocyclization of various alkenes and aromatic heterocycles as π-components, in which metal carbene species are generated that further induce the cleavage of the α-C-H or -C-C bond. Specifically, the latter can react with various nucleophilic reagents containing -O, -S, -N, and -C. The stereo-controlled late-stage modification of some complicated pharmaceuticals indicates the versatility of this protocol.
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Affiliation(s)
- Jingpeng Han
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China
| | - Yongjian Yang
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China
| | - Yingjian Gong
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China
| | - Xuan Tang
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China
| | - Yi Tian
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China
| | - Baosheng Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China.
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2
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Ma N, Zhou L, Li Y, Wu H, Li S, Zhang G. Theoretical Insight into the Mechanism of Cu(I)-Catalyzed [2 + 2 + 1] Cycloaddition to β-Pyrrolinones: Azaheterocycle Formation and Assisted Dehydrogenation with Solvent MeNO 2. J Org Chem 2023. [PMID: 37467204 DOI: 10.1021/acs.joc.3c00727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
The construction of multisubstituted β-pyrrolinones from simple starting materials remains a great challenge. Recently, a novel Cu(I)-catalyzed [2 + 2 + 1] cycloaddition reaction was developed for rapid access to fully substituted β-pyrrolinones, which are difficult to synthesize through traditional methods as this approach may involve unusual C-nucleophilic addition of enamines and umpolung of imines. Elucidating the reaction mechanism may inspire the development of new methodologies via the unusual C-nucleophilic addition of enamines and imines. However, the reaction mechanism is still unclear because none of the intermediates was observed during the reaction process. In this work, we employed theoretical and computational chemistry to investigate the possible pathway. Finally, the calculated results indicate that ketene formed by the Wolff rearrangement of α-diazo-β-ketoester reacts with enamine formed by the addition of alkynes and amine, affording the five-membered azaheterocycle, and this process involves the formation of a six-membered ring intermediate and sequential isomerization, and the further dehydrogenation needs to be assisted with solvent MeNO2.
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Affiliation(s)
- Nana Ma
- School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education; NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Lanxin Zhou
- School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education; NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Yameng Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education; NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Hao Wu
- School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education; NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Shujun Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education; NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Guisheng Zhang
- School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education; NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Normal University, Xinxiang, Henan, 453007, China
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3
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Liu X, Shi X, Zhou J, Huang C, Lin Y, Zhang C, Cao H. Dearomative cyclization of pyridines/isoquinolines with cyclopropenones: access to indolizinones and benzo-fused indolizinones. Chem Commun (Camb) 2023; 59:4051-4054. [PMID: 36929395 DOI: 10.1039/d3cc00492a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Abstract
Dearomatization reactions provide a rapid approach to construct complicated molecules that are difficult to synthesize by traditional methods from simple aromatic compounds. Herein, we report an efficient dearomative [3+2] cycloaddition reaction of 2-alkynyl pyridines with diarylcyclopropenones, leading to the synthesis of densely functionalized indolizinones in moderate to good yields under metal-free conditions. In addition, this strategy can also be employed in dearomative cyclization of isoquinolines to access a variety of benzo-fused indolizinones. Density functional theory (DFT) calculations revealed that an appropriate substituent at the 2-position of pyridine is crucial to the dearomatization process.
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Affiliation(s)
- Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Xiaotian Shi
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Jinlei Zhou
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Changfeng Huang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Yu Lin
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
| | - Chen Zhang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China. .,School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.
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4
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A facile and robust approach for synthesis and structural characterization of an unprecedented ring system of 4H-pyrazolo[3,4-f]indolizine-4,9(2H)-dione derivatives. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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5
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Liu Z, Liu X, Yang S, Miao X, Li D, Wang D. Titanium-Mediated aza-Nazarov Annulation for the Synthesis of N-Fused Tricycles: A General Method to Access Lamellarin Analogues. J Org Chem 2022; 87:10319-10332. [PMID: 35881508 DOI: 10.1021/acs.joc.2c01379] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fused heterocycles with nitrogen incorporation are of particular bioactive use and high importance in many research fields, especially isoquinoline-based [6/6/5] tricycles. Here, we report a unique strategy to access multifunctional N-fused tricycles from α,β-unsaturated isoquinoline ketone and sulfonamide under mild reaction conditions. The methodology features wide substrate tolerance, and a set of N-fused heteroarenes including quinoline, phthalazine, quinazoline, quinoxaline, and benzothiazole cores are furnished efficiently. Moreover, the protocol is easy to scale up to synthesize lamellarin analogues, and the amide group of the product is also easy to transfer to other functional groups.
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Affiliation(s)
- Zhixin Liu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266100, China
| | - Xinyu Liu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266100, China
| | - Shengkuan Yang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266100, China
| | - Xiaohe Miao
- Instrumentation and Service Center for Physical Sciences, Westlake University, Hangzhou 310024, China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266100, China.,Laboratory for Marine Drugs and Bioproducts & Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao 266237, China
| | - De Wang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266100, China.,Laboratory for Marine Drugs and Bioproducts & Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao 266237, China.,State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, Guangdong, PR China
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6
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Han C, Liu Y, Tian X, Rominger F, Hashmi ASK. Dual Gold/Silver Catalysis: Indolizines from 2-Substituted Pyridine Derivatives via a Tandem C(sp 3)-H Alkynylation/Iminoauration. Org Lett 2021; 23:9480-9484. [PMID: 34874732 DOI: 10.1021/acs.orglett.1c03667] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A dual gold/silver-catalyzed cascade C(sp3)-H alkynylation/iminoauration of 2-substituted pyridines with hypervalent iodine(III) reagents for the synthesis of indolizines is described. This novel reaction involves the formation of an alkynyl Au(III) species, a dual gold/silver-catalyzed C(sp3)-H functionalization, and a subsequent iminoauration process. A number of indolizines bearing diverse functionalities were prepared in good to excellent yield. Furthermore, a gram-scale reaction was efficiently conducted.
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Affiliation(s)
- Chunyu Han
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Yaowen Liu
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Xianhai Tian
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.,Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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7
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Xiao X, Han P, Zhou H, Liu J. Palladium-Catalyzed Difunctionalization of Alkenes by Relay Coupling with Propargylic Pyridines: Synthesis of Indolizine and Indolizinone-Containing Bisheterocycles. J Org Chem 2021; 86:18179-18191. [PMID: 34860532 DOI: 10.1021/acs.joc.1c02438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Palladium-catalyzed arylation/heteroarylation of aryl halide-tethered alkenes with propargylic pyridines has been established, which provides direct and efficient access to various oxindole, azaoxindole, dihydrobenzopyran, indole, and benzofuran-linked indolizines in good yields with a broad substrate scope and high functional group tolerance. This process enables the formation of one C-N and two C-C bonds in a single operation through an intramolecular carbopalladation and cycloisomerization sequence. Furthermore, an indolizinone-linked bisheterocyclic framework containing indole and benzofuran could be synthesized conveniently from tertiary propargylic alcohols involving methyl or phenyl migration.
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Affiliation(s)
- Xiao Xiao
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Puren Han
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Huiwen Zhou
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Jianchao Liu
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
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8
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Asif M, Alghamdi S. An Overview on Biological Importance of Pyrrolone and Pyrrolidinone Derivatives as Promising Scaffolds. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021100201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Fei Y, Hu J, Wang Z, Cui L, Jia X, Li C, Li J. Exploring the Reactivity of Propargylic Ester: Acyloxy and Acyl Migratory Rearrangement Relay Enabled by Formal Double Isocyanide Insertion. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001577] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Youwen Fei
- Department of Chemistry College of Sciences & Institute for Sustainable Energy Shanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Jie Hu
- Department of Chemistry College of Sciences & Institute for Sustainable Energy Shanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Zhishuang Wang
- Department of Chemistry College of Sciences & Institute for Sustainable Energy Shanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Lei Cui
- Department of Chemistry College of Sciences & Institute for Sustainable Energy Shanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Xueshun Jia
- Department of Chemistry College of Sciences & Institute for Sustainable Energy Shanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Chunju Li
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry Ministry of Education Tianjin Key Laboratory of Structure and Performance for Functional Molecules College of Chemistry Tianjin Normal University Tianjin 300387 People's Republic of China
| | - Jian Li
- Department of Chemistry College of Sciences & Institute for Sustainable Energy Shanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 People's Republic of China
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10
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Xi S, Dong J, Chen H, Dong Q, Yang J, Tan Q, Zhang C, Lan Y, Zhang M. Lewis acid-catalyzed domino generation/[2,3]-sigmatropic rearrangement of ammonium ylides to access chiral azabicycles. SCIENCE ADVANCES 2021; 7:eabd5290. [PMID: 33514546 PMCID: PMC7846163 DOI: 10.1126/sciadv.abd5290] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
[2,3]-Sigmatropic rearrangement of ammonium ylides represents a fundamental reaction for stereoselective synthesis of nitrogenous compounds. However, its applicability is limited by the scarcity of efficient, catalytic, and mild methods for generating ammonium ylides. Here, we report silver-catalyzed domino generation/[2,3]-sigmatropic rearrangement of ammonium ylides, furnishing chiral azabicycles with bridgehead quaternary stereogenic centers in high enantiomeric purity (up to 99% ee). A combination of density functional theory calculations and experimental studies revealed that residual water in the reaction system is crucial for the mild reaction conditions by functioning as a proton shuttle to assist carbon-silver bond protonation and C2─H deprotonation to generate the ammonium ylide. This reaction has a broad application scope. Besides the diverse substituents, N-fused azabicycles of various ring sizes are also easily accessed. In addition to silver salts, this strategy has also been successfully implemented by using a stoichiometric amount of nonmetallic I2.
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Affiliation(s)
- Song Xi
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Jiawei Dong
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Haohua Chen
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - Qiuyan Dong
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Jiao Yang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Qiuyuan Tan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Changhui Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Yu Lan
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China.
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Min Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China.
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
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11
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Yang P, Liu CX, Zhang WW, You SL. Ir-Catalyzed Enantioselective Friedel-Crafts Type Allylic Substitution of Indolizines. ACTA CHIMICA SINICA 2021. [DOI: 10.6023/a21050198] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Jadala C, Ganga Reddy V, Hari Krishna N, Shankaraiah N, Kamal A. Base-mediated 1,3-dipolar cycloaddition of pyridinium bromides with bromoallyl sulfones: a facile access to indolizine scaffolds. Org Biomol Chem 2020; 18:8694-8701. [PMID: 33084715 DOI: 10.1039/d0ob01696a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An expedient and transition-metal-free synthetic strategy has been developed for the construction of substituted indolizines from a unique combination of pyridinium salts and 2-bromoallyl sulfones. This approach does not compromise with the diverse substitutions on both the pyridinium salts and 2-bromoallyl sulfones. Wide substrate scope, operational simplicity, milder reaction conditions and good to moderate yields are the merits associated with the current approach. Moreover, this method provides two products which are amenable for the generation of a library of key indolizine building blocks.
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Affiliation(s)
- Chetna Jadala
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | - Velma Ganga Reddy
- Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India and Centre for Advanced Materials & Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO Box 2476, Melbourne 3001, Australia
| | - Namballa Hari Krishna
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India. and Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India and Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, NY 10065, USA
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | - Ahmed Kamal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India. and Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India and School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi, 110062, India
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13
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Fang Y, Li F, Yang Y, Liu X, Pan W. Iodine Mediated Base‐Controlled Regio‐Selective Annulation of 2‐(Pyridin‐2‐yl)acetate Derivatives with Acrylic Esters for the Synthesis of Indolizines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000103] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Youlai Fang
- State Key Laboratory of Functions and Applications of Medicinal PlantsGuizhou Medical University 3491 Baijin Road Guiyang 550014 People's Republic of China
- The Key Laboratory of Chemistry for Natural Products of Guizhou ProvinceChinese Academy of Sciences 3491 Baijin Road Guiyang 550014 People's Republic of China
| | - Fei Li
- State Key Laboratory of Functions and Applications of Medicinal PlantsGuizhou Medical University 3491 Baijin Road Guiyang 550014 People's Republic of China
- The Key Laboratory of Chemistry for Natural Products of Guizhou ProvinceChinese Academy of Sciences 3491 Baijin Road Guiyang 550014 People's Republic of China
| | - Yuzhu Yang
- State Key Laboratory of Functions and Applications of Medicinal PlantsGuizhou Medical University 3491 Baijin Road Guiyang 550014 People's Republic of China
- The Key Laboratory of Chemistry for Natural Products of Guizhou ProvinceChinese Academy of Sciences 3491 Baijin Road Guiyang 550014 People's Republic of China
| | - Xiaolan Liu
- State Key Laboratory of Functions and Applications of Medicinal PlantsGuizhou Medical University 3491 Baijin Road Guiyang 550014 People's Republic of China
- The Key Laboratory of Chemistry for Natural Products of Guizhou ProvinceChinese Academy of Sciences 3491 Baijin Road Guiyang 550014 People's Republic of China
| | - Weidong Pan
- State Key Laboratory of Functions and Applications of Medicinal PlantsGuizhou Medical University 3491 Baijin Road Guiyang 550014 People's Republic of China
- The Key Laboratory of Chemistry for Natural Products of Guizhou ProvinceChinese Academy of Sciences 3491 Baijin Road Guiyang 550014 People's Republic of China
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14
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Sahoo SR, Sarkar D, Henkel F, Reuter H. Copper(I)-Catalyzed Synthesis of Functionalized Indolizinones from Substituted Pyridine Homologated Ynones. J Org Chem 2020; 85:902-911. [PMID: 31868359 DOI: 10.1021/acs.joc.9b02853] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient two-component copper-catalyzed cyclization cascade approach toward highly functionalized indolizinone heterocycles has been developed from reactions of pyridine-, isoquinoline-, and quinoline ynones, via 5-exo-dig cyclization. The catalysis involves the activation by diorgano diselenide and diorgano disulfide and also their incorporation into the indolizinone core. In addition, the obtained substituted indolizinones were readily transformed into 1-(organochalcogenyl)indolizin-2-ols, which are important building blocks in organic synthesis.
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Affiliation(s)
- Sushree Ranjan Sahoo
- Organic Synthesis and Molecular Engineering Laboratory, Department of Chemistry , National Institute of Technology , Rourkela 769008 , India
| | - Debayan Sarkar
- Organic Synthesis and Molecular Engineering Laboratory, Department of Chemistry , National Institute of Technology , Rourkela 769008 , India
| | - Felix Henkel
- Institute of Chemistry of New Materials , University of Osnabrück , Barbarastraβe-6 , Osnabrück 49076 , Germany
| | - Hans Reuter
- Institute of Chemistry of New Materials , University of Osnabrück , Barbarastraβe-6 , Osnabrück 49076 , Germany
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15
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Dada R, Sulthan M, Yaragorla S. Calcium-Catalyzed Stereoselective Tandem [4+2] and [3+2] Annulation Reaction for the Synthesis of Dihydropyrrolo[1,2- a]quinolines. Org Lett 2019; 22:279-283. [PMID: 31854991 DOI: 10.1021/acs.orglett.9b04293] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Calcium-catalyzed highly facile one-pot, A4 annulation of aldehyde, amine, alkene, and alkyne to form fused 4,5-dihydropyrrolo[1,2-a]quinolines with exclusive syn diastereoselectivity is reported. This selectivity arises from an inverse electron demand [4+2] aza-Diels-Alder cycloaddition, and the adduct further undergoes a formal [3+2] cyclization with activated alkynes. This diversity-oriented protocol is highly general and furnishes the dihydropyrrolo[1,2-a]quinoline derivatives with a broad substrate scope in good to excellent yields.
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Affiliation(s)
- Ravikrishna Dada
- School of Chemistry , University of Hyderabad , P.O. Central University, Gachibowli, Hyderabad 500046 , India
| | - Mahesh Sulthan
- School of Chemistry , University of Hyderabad , P.O. Central University, Gachibowli, Hyderabad 500046 , India
| | - Srinivasarao Yaragorla
- School of Chemistry , University of Hyderabad , P.O. Central University, Gachibowli, Hyderabad 500046 , India
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16
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Chung LH, Yeung CF, Shek HL, Wong CY. Isolation of a C3-metalated indolizine complex and a phosphonium ring-fused bicyclic metallafuran from the osmium-induced transformation of pyridine-tethered alkynes. Faraday Discuss 2019; 220:196-207. [PMID: 31517351 DOI: 10.1039/c9fd00048h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The first C3-metalated indolizine complex was prepared from the reaction between cis-[Os(dppm)2Cl2] (dppm = 1,1-bis(diphenylphosphino)methane) and propargylic pyridine, HC[triple bond, length as m-dash]CC(OH)(2-py)2. A phosphonium ring-fused bicyclic osmafuran complex was also prepared from the reaction between cis-[Os(dppm)2Cl2] and pyridyl ynone, HC[triple bond, length as m-dash]C(C[double bond, length as m-dash]O)(2-py). The formation of these two products revealed the intermediacy of metal-vinylidene species regarding [Os(dppm)2Cl]+-mediated alkyne transformations. Comparison of the d6 transition-metal precursors employed to activate HC[triple bond, length as m-dash]CC(OH)(2-py)2 suggests that precursors with higher π-basicity favor the vinylidene-involving pathway.
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Affiliation(s)
- Lai-Hon Chung
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, P. R. China.
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17
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Makarov AS, Uchuskin MG, Hashmi ASK. Intramolecular azavinyl carbene-triggered rearrangement of furans. Chem Sci 2019; 10:8583-8588. [PMID: 31803433 PMCID: PMC6839507 DOI: 10.1039/c9sc02299f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 07/16/2019] [Indexed: 01/16/2023] Open
Abstract
An intramolecular rhodium-catalyzed reaction of 1-tosyl-1,2,3-triazoles with furans has been explored. The tosylimino functionality was found to play a significant chemical role participating in the subsequent domino-transformations of a key reaction intermediate. One of the reaction pathways leads to valuable 2-formyl- and 2-acetylpyridine building blocks, which could be obtained in one-pot starting from easily accessible (furan-2-ylmethyl)propargyl amines. An original method for the synthesis of highly functionalized indolizines from the obtained pyridines has been proposed.
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Affiliation(s)
- Anton S Makarov
- Department of Chemistry , Perm State University , Bukireva 15 , 614990 Perm , Russia .
| | - Maxim G Uchuskin
- Department of Chemistry , Perm State University , Bukireva 15 , 614990 Perm , Russia .
| | - A Stephen K Hashmi
- Institut für Organische Chemie , Heidelberg University , Im Neuenheimer Feld 270 , 69120 Heidelberg , Germany
- Chemistry Department , King Abdulaziz University , Jeddah 21589 , Saudi Arabia .
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18
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Chen Z, Liang P, Xu F, Deng Z, Long L, Luo G, Ye M. Metal-Free Aminothiation of Alkynes: Three-Component Tandem Annulation toward Indolizine Thiones from 2-Alkylpyridines, Ynals, and Elemental Sulfur. J Org Chem 2019; 84:12639-12647. [PMID: 31545050 DOI: 10.1021/acs.joc.9b01802] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A metal-free three-component annulation reaction for the synthesis of indolizine thiones via tandem C-C/C-N/C-S bond formation was developed. Various 2-alkylpyridines with aromatic ynals and elemental sulfur proceeded smoothly under catalyst-free conditions, and the desired products were obtained in moderate to excellent yields.
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Affiliation(s)
- Zhengwang Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
| | - Pei Liang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
| | - Fan Xu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
| | - Zhen Deng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
| | - Lipeng Long
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
| | - Guotian Luo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
| | - Min Ye
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou 341000 , P. R. China
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19
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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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20
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Fang Y, He L, Pan W, Yang Y. Iodine-mediated one-pot synthesis of C-3 acylated indolizines from pyridines, aryl methyl ketones and acrylate derivatives. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.058] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Abstract
The favorability of ring closure reactions as per Baldwin rules has gained immense importance recently. This is evident from the current literature such as research articles, reviews, and books that have been published in this area. This review covers the recent applications of 5-endo-dig cyclization in organic synthesis focusing in the last two decades. A variety of 5-membered heterocycles as well as carbocycles could be synthesized via 5-endo-dig cyclization reactions. The important applications of 5-endo-dig cyclization in organic synthesis covering different aspects have been summarized in this review.
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22
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Chen Z, Liang P, Ma X, Luo H, Xu G, Liu T, Wen X, Zheng J, Ye H. Catalyst-Free Annulation of 2-Pyridylacetates and Ynals with Molecular Oxygen: An Access to 3-Acylated Indolizines. J Org Chem 2019; 84:1630-1639. [PMID: 30608171 DOI: 10.1021/acs.joc.8b02883] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A catalyst and additive-free annulation of 2-pyridylacetates and ynals under molecular oxygen was the first developed, affording 3-acylated indolizines in good to excellent yields. Molecular oxygen was used as the source of the carbonyl oxygen atom in indolizines. This approach was compatible with a wide range of functional groups, and especially it has been successfully extended to unsaturated double bonds and triple bonds, which were difficult to prepare by previous methods in a single step.
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Affiliation(s)
- Zhengwang Chen
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China.,Hubei Key Laboratory of Processing and Application of Catalytic Materials , Huanggang Normal University , Huanggang , 438000 , China
| | - Pei Liang
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Xiaoyue Ma
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Haiqing Luo
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Guohai Xu
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Tanggao Liu
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Xiaowei Wen
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Jing Zheng
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Hui Ye
- Hubei Key Laboratory of Processing and Application of Catalytic Materials , Huanggang Normal University , Huanggang , 438000 , China
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23
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24
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Chung LH, Wong CY. Ruthenium-Induced Alkyne Cycloisomerization: Construction of Metalated Heterocycles, Revelation of Unconventional Reaction Pathways, and Exploration of Functional Applications. Chemistry 2018; 25:2889-2897. [DOI: 10.1002/chem.201804656] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/06/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Lai-Hon Chung
- Department of Chemistry; City University of Hong Kong; Tat Chee Avenue Kowloon, Hong Kong SAR
| | - Chun-Yuen Wong
- Department of Chemistry; City University of Hong Kong; Tat Chee Avenue Kowloon, Hong Kong SAR
- State Key Laboratory of Terahertz and Millimeter Waves; City University of Hong Kong; Tat Chee Avenue Kowloon, Hong Kong SAR
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25
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Ogunlana AA, Zou J, Bao X. Computational insights into the mechanisms of Ru-catalyzed cycloisomerization of 2-ethynylaniline and 2-(2-propynyl)tosylanilide: The role of pyridine in assisting the metal-vinylidene formation. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.03.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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26
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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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27
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One-pot microwave assisted synthesis and structural elucidation of novel ethyl 3-substituted-7-methylindolizine-1-carboxylates with larvicidal activity against Anopheles arabiensis. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.11.131] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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28
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Ghosh A, Basak A, Chakrabarty K, Mondal S, Chatterjee A, Das GK. Au-Catalyzed Hexannulation and Pt-Catalyzed Pentannulation of Propargylic Ester Bearing a 2-Alkynyl-phenyl Substituent: A Comparative DFT Study. ACS OMEGA 2018; 3:1159-1169. [PMID: 31457958 PMCID: PMC6641497 DOI: 10.1021/acsomega.7b01889] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 01/16/2018] [Indexed: 05/11/2023]
Abstract
The mechanistic pathways of metal-catalyzed pentannulation and hexannulation of aromatic enediyne were studied quantum mechanically with Pt and Au salts. In agreement with the experimental facts, our result shows that the pentannulation favors over the hexannulation under Pt-catalyzed conditions and the reverse possibility favors when the Pt salt is replaced with an Au one. The Pt-catalyzed reaction involves a long-range acyl migration that follows the cyclization step. Our study reveals that such migration takes place under the assistance of a ligand of the metal atom. Moreover, the variation of aromaticity (probed by the change of the nucleus-independent chemical shift (0) value) in the cyclization steps shows that both processes maintain the development of the aromatic character of the generated intermediate during the progress of the reaction.
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29
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Li F, Cho J, Tan S, Kim S. Synthesis of Quinolizinium-Type Heteroaromatics via a Carbene Intermediate. Org Lett 2018; 20:824-827. [DOI: 10.1021/acs.orglett.7b03964] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Feng Li
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Jihee Cho
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Shenpeng Tan
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Sanghee Kim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
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30
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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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31
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Chandrashekharappa S, Venugopala KN, Tratrat C, Mahomoodally FM, Aldhubiab BE, Haroun M, Venugopala R, Mohan MK, Kulkarni RS, Attimarad MV, Harsha S, Odhav B. Efficient synthesis and characterization of novel indolizines: exploration of in vitro COX-2 inhibitory activity and molecular modelling studies. NEW J CHEM 2018. [DOI: 10.1039/c7nj05010k] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Novel indolizine scaffolds as COX-2 inhibiting agents.
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32
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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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33
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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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34
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Effects of base strength on the copper-catalyzed cycloisomerization of propargylic acetates to form indolizines: A DFT study. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.09.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Chatterjee A, Saha R, Panja D, Ghosh S, Mondal S, Ghosh A, Das GK. Revisited the mechanism of the transition metal catalyzed cycloetherification of ω-hydroxy propargylic ester: A DFT study. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.05.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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36
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Wilkerson-Hill SM, Yu D, Painter PP, Fisher EL, Tantillo DJ, Sarpong R, Hein JE. Mechanism of a No-Metal-Added Heterocycloisomerization of Alkynylcyclopropylhydrazones: Synthesis of Cycloheptane-Fused Aminopyrroles Facilitated by Copper Salts at Trace Loadings. J Am Chem Soc 2017; 139:10569-10577. [DOI: 10.1021/jacs.7b06007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Diana Yu
- Chemistry
and Chemical Biology, University of California, Merced, California 95343, United States
| | - Phillip P. Painter
- Department
of Chemistry, University of California, Davis, California 95616, United States
| | - Ethan L. Fisher
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Dean J. Tantillo
- Department
of Chemistry, University of California, Davis, California 95616, United States
| | - Richmond Sarpong
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Jason E. Hein
- Chemistry
and Chemical Biology, University of California, Merced, California 95343, United States
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37
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Kondoh A, Koda K, Kamata Y, Terada M. Synthesis of Indolizine Derivatives Utilizing [1,2]-Phospha-Brook Rearrangement/Cycloisomerization Sequence. CHEM LETT 2017. [DOI: 10.1246/cl.170377] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Azusa Kondoh
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578
| | - Kazumi Koda
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578
| | - Yuji Kamata
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578
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38
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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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39
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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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40
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Wu FS, Zhao HY, Xu YL, Hu K, Pan YM, Ma XL. Catalyst-Free Synthesis of Pyrrolo[1,2-a]quinolines via Dehydration/[3 + 2] Cycloaddition Directly from 2-Methylquinolines, Aldehydes, and Alkynoates. J Org Chem 2017; 82:4289-4296. [DOI: 10.1021/acs.joc.7b00280] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fu-song Wu
- College
of Pharmacy, Guilin Medical University, Guilin 541004, People’s Republic of China
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People’s Republic of China
| | - Hai-yuan Zhao
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People’s Republic of China
| | - Yan-li Xu
- College
of Pharmacy, Guilin Medical University, Guilin 541004, People’s Republic of China
| | - Kun Hu
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People’s Republic of China
| | - Ying-ming Pan
- State
Key Laboratory for Chemistry and Molecular Engineering of Medicinal
Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People’s Republic of China
| | - Xian-li Ma
- College
of Pharmacy, Guilin Medical University, Guilin 541004, People’s Republic of China
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41
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Wang L, Tang Y. Cycloisomerization of Pyridine‐Substituted Propargylic Alcohols or Esters To Construct Indolizines and Indolizinones. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601530] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Li‐Xia Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Center for Molecular Sciences State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences 100190 Beijing PR China
| | - Ya‐Lin Tang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Center for Molecular Sciences State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences 100190 Beijing PR China
- University of the Chinese Academy of Sciences 100049 Beijing PR China
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42
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Shen B, Li B, Wang B. Rh(III)-Catalyzed Oxidative Annulation Leading to Substituted Indolizines by Cleavage of C(sp2)–H/C(sp3)–H Bonds. Org Lett 2016; 18:2816-9. [DOI: 10.1021/acs.orglett.6b01181] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Baiquan Wang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
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43
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Oh KH, Kim SM, Park SY, Park JK. Base-Controlled Cu-Catalyzed Tandem Cyclization/Alkynylation for the Synthesis of Indolizines. Org Lett 2016; 18:2204-7. [DOI: 10.1021/acs.orglett.6b00821] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kyung Hwan Oh
- Department of Chemistry and
Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Seong Min Kim
- Department of Chemistry and
Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Sun Young Park
- Department of Chemistry and
Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Jin Kyoon Park
- Department of Chemistry and
Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
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44
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Li X, Xie X, Liu Y. Gold(I)-Catalyzed Cascade Hydroarylation/Cycloaromatization to Indolizines via Pyridine Ring Construction. J Org Chem 2016; 81:3688-99. [DOI: 10.1021/acs.joc.6b00346] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xiangdong Li
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Xin Xie
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
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45
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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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46
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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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47
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Sadowski B, Klajn J, Gryko DT. Recent advances in the synthesis of indolizines and their π-expanded analogues. Org Biomol Chem 2016; 14:7804-28. [DOI: 10.1039/c6ob00985a] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Synthesis of indolizines developed during the last decade is reviewed, with special emphasis given to densely functionalized architectures, breakthrough strategies, compounds bearing electron-donating and electron-withdrawing substituents and π-expanded systems.
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Affiliation(s)
- Bartłomiej Sadowski
- Institute of Organic Chemistry of the Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Jan Klajn
- Institute of Organic Chemistry of the Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Daniel T. Gryko
- Institute of Organic Chemistry of the Polish Academy of Sciences
- 01-224 Warsaw
- Poland
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48
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Nanjappa C, Hanumanthappa SKT, Nagendrappa G, Ganapathy PSS, Shruthi SD, More SS, Jose G, Sowmya HBV, Kulkarni RS. Synthesis, ABTS-Radical Scavenging Activity, and Antiproliferative and Molecular Docking Studies of Novel Pyrrolo[1,2-a]quinoline Derivatives. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1085572] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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49
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Xu T, Alper H. Synthesis of Indolizine Derivatives by Pd-Catalyzed Oxidative Carbonylation. Org Lett 2015; 17:4526-9. [DOI: 10.1021/acs.orglett.5b02220] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tongyu Xu
- Centre for Catalysis Research
and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada, K1N
6N5
| | - Howard Alper
- Centre for Catalysis Research
and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada, K1N
6N5
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50
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Wang JJ, Feng X, Xun Z, Shi DQ, Huang ZB. Multicomponent Strategy to Pyrazolo[3,4-e]indolizine Derivatives under Microwave Irradiation. J Org Chem 2015; 80:8435-42. [PMID: 26193420 DOI: 10.1021/acs.joc.5b01314] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A simple and efficient one-pot construction of pyrazolo[3,4-e]indolizine derivatives via a diethylamine-catalyzed three-component domino reaction of arylglyoxals, cyclic 1,3-diones, and 5-aminopyrazoles under microwave irradiation is described. In this one-pot transformation, seven bonds and two new rings are efficiently formed. This synthesis was confirmed to follow the group-assisted-purification (GAP) chemistry process, which can avoid traditional recrystallization or chromatography purification methods.
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Affiliation(s)
- Jian-Jun Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Xian Feng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhan Xun
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Da-Qing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhi-Bin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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