1
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Melder JJ, Heldner ML, Kugler R, Ziegenhagen LA, Rominger F, Rudolph M, Hashmi ASK. Easy Access to Functionalized Indolines and Tetrahydroquinolines via a Photochemical Cascade Cyclization Reaction. J Am Chem Soc 2024; 146:14521-14527. [PMID: 38743878 DOI: 10.1021/jacs.4c00962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Herein, the development of a light-mediated synthesis of functionalized indolines and tetrahydroquinolines is reported. These structural motifs are considered as highly valuable targets, attributed to their widespread occurrence in pharmaceuticals and natural products. The gold-mediated approach offers a direct route to functionalized indolines in yields of up to 81% under mild photochemical conditions. Thereby, easily accessible Boc-protected N-aryl-allylamine and homoallylamine derivatives were reacted with sp3-hybridized haloalkanes in an intermolecular cascade cyclization reaction. A broad scope of substrates, including a variety of different substituents on the aromatic backbone as well as various haloalkanes, could be utilized. Indoline derivatives, which are functionalized in position 2, are also accessible by applying ortho-allylic anilines. Moreover, the synthetic appeal was demonstrated for a total synthesis of the anti-inflammatory agent AN669 in three reaction steps in an overall yield of 64%.
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Affiliation(s)
- Julian J Melder
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Maxi L Heldner
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Robin Kugler
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Levi A Ziegenhagen
- 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
| | - Matthias Rudolph
- 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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2
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Li Q, Gu X, Wei Y, Shi M. Visible-light-induced indole synthesis via intramolecular C-N bond formation: desulfonylative C(sp 2)-H functionalization. Chem Sci 2022; 13:11623-11632. [PMID: 36320397 PMCID: PMC9555724 DOI: 10.1039/d2sc02822k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 09/15/2022] [Indexed: 08/09/2024] Open
Abstract
Despite significant advances made on the synthesis of indole derivatives through photochemical strategies during the past several years, the requirement of equivalent amounts of oxidants, bases or other additional additives has limited their practical applications in the synthesis of natural products and pharmaceuticals as environment-friendly processes. Herein, we report LED visible-light-induced redox neutral desulfonylative C(sp2)-H functionalization for the synthesis of N-substituted indoles with a broad scope through γ-fragmentation under mild conditions in the absence of any additional additive. The reaction mechanism paradigm has been investigated on the basis of deuterium labeling experiments, kinetic analysis, Hammett plotting analysis and DFT calculations.
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Affiliation(s)
- Quanzhe Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Xintao Gu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology 130 Meilong Road Shanghai 200237 China
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3
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Varlet T, Bouchet D, Van Elslande E, Masson G. Decatungstate‐Photocatalyzed Dearomative Hydroacylation of Indoles: Direct Synthesis of 2‐Acylindolines. Chemistry 2022; 28:e202201707. [DOI: 10.1002/chem.202201707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Thomas Varlet
- Institut de Chimie des Substances Naturelles (ICSN) CNRS University Paris-Saclay 1 Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
| | - Damien Bouchet
- Institut de Chimie des Substances Naturelles (ICSN) CNRS University Paris-Saclay 1 Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
| | - Elsa Van Elslande
- Institut de Chimie des Substances Naturelles (ICSN) CNRS University Paris-Saclay 1 Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles (ICSN) CNRS University Paris-Saclay 1 Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
- HitCat Seqens-CNRS joint laboratory Seqens'Lab 8 Rue de Rouen 78440 Porcheville France
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4
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Tian HZ, Wu SF, Lin GQ, Sun XW. Asymmetric synthesis of pyrrolo[2,3–b]indole scaffolds by organocatalytic [3 + 2] dearomative annulation. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Capecchi A, Reymond JL. Classifying natural products from plants, fungi or bacteria using the COCONUT database and machine learning. J Cheminform 2021; 13:82. [PMID: 34663470 PMCID: PMC8524952 DOI: 10.1186/s13321-021-00559-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 10/02/2021] [Indexed: 01/13/2023] Open
Abstract
Natural products (NPs) represent one of the most important resources for discovering new drugs. Here we asked whether NP origin can be assigned from their molecular structure in a subset of 60,171 NPs in the recently reported Collection of Open Natural Products (COCONUT) database assigned to plants, fungi, or bacteria. Visualizing this subset in an interactive tree-map (TMAP) calculated using MAP4 (MinHashed atom pair fingerprint) clustered NPs according to their assigned origin ( https://tm.gdb.tools/map4/coconut_tmap/ ), and a support vector machine (SVM) trained with MAP4 correctly assigned the origin for 94% of plant, 89% of fungal, and 89% of bacterial NPs in this subset. An online tool based on an SVM trained with the entire subset correctly assigned the origin of further NPs with similar performance ( https://np-svm-map4.gdb.tools/ ). Origin information might be useful when searching for biosynthetic genes of NPs isolated from plants but produced by endophytic microorganisms.
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Affiliation(s)
- Alice Capecchi
- 1 Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Jean-Louis Reymond
- 1 Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland.
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6
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Tan X, Zhang J, Liu X, Jin Y. Metal-free oxidative ketonization–olefination of indoles by cross-coupling with 1,3-dicarbonyl substrate. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153322] [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]
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7
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Chemo‐ and Regioselective Synthesis of Functionalized 1
H
‐imidazo[1,5‐
a
]indol‐3(2
H
)‐ones via a Redox‐Neutral Rhodium(III)‐Catalyzed [4+1] Annulation between Indoles and Alkynes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100555] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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8
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Green synthesis of some 3-(α,α-diarylmethyl)indoles by bio-nanocomposite from embedding L-histidinium trichloroacetate ionic liquid on functionalized magnetite (L-His +CCl 3CO 2-@PEG@SiO 2-nano Fe 3O 4). Mol Divers 2021; 26:1425-1439. [PMID: 34297277 DOI: 10.1007/s11030-021-10268-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/30/2021] [Indexed: 01/11/2023]
Abstract
In this research, a new multilayered magnetized bio-nanocomposite has been prepared. At first, the amino acid-based ionic liquid was obtained from L-histidine and trichloroacetic acid (L-His+CCl3CO2-), embedded on the polyethylene glycol-functionalized silicated-nanomagnetite, to prepare the final nanostructure (L-His+CCl3CO2-@PEG@SiO2-nano Fe3O4). The bio-nanocomposite was characterized by several techniques such as FT-IR, FESEM, TGA/DTG, EDAX, TEM, VSM, and XRD. The catalytic activity of the core-shell nanostructure was examined in one-pot three-component reaction between aryl aldehydes, indoles, and β-naphthol/phenols to get some new 3-(α,α-diarylmethyl)indoles under solvent-free conditions at 75 °C. Eco-friendly protocol in the absence of hazardous solvents, no observation of by-products such as bis(indolyl)methanes (BIMs), in addition to recovery and reusability of the nanostructure within 3 runs without activity loss are some highlighted notable features of the work. The reused bio-nanocomposite was also characterized through FESEM technique.
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9
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Zhao F, Qiao J, Lu Y, Zhang X, Dai L, Liu S, Ni H, Jia X, Wu X, Lu S. Redox-Neutral Rhodium(III)-Catalyzed Chemospecific and Regiospecific [4+1] Annulation between Indoles and Alkenes for the Synthesis of Functionalized Imidazo[1,5- a]indoles. J Org Chem 2021; 86:10591-10607. [PMID: 34297561 DOI: 10.1021/acs.joc.1c01256] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Exploiting internal alkenes embedded with an oxidizing function/leaving group as a rare and unconventional one-carbon unit, a redox-neutral rhodium(III)-catalyzed chemo- and regiospecific [4+1] annulation between indoles and alkenes for the synthesis of functionalized imidazo[1,5-a]indoles has been achieved. Internal alkenes employed here can fulfill an unusual [4+1] annulation rather than normal [4+2] annulation/C-H alkenylation. This method is characterized by excellent chemo- and regioselectivity, broad substrate scope, good functional group tolerance, good to high yields, and redox-neutral conditions.
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Affiliation(s)
- Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, P. R. China.,Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Jin Qiao
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Yangbin Lu
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Xiaoning Zhang
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Long Dai
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Siyu Liu
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Hangcheng Ni
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Xiuwen Jia
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, P. R. China
| | - Xiaowei Wu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, P. R. China.,Zhongshan Institute for Drug Discovery, the Institutes of Drug Discovery and Development, Chinese Academy of Sciences, Zhongshan 528400, P. R. China
| | - Shiyao Lu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, P. R. China.,Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
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10
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Yuan SP, Zhang XY, Jia YQ, Wang ZH, Zhao JQ, You Y, Zhou MQ, Yuan WC. Catalytic asymmetric coupling of vinylogous species via deconjugated butenolide addition to vinylogous imines in situ generated from arylsulfonyl indoles. Chem Commun (Camb) 2021; 57:4938-4941. [PMID: 33876161 DOI: 10.1039/d1cc00777g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An efficient catalytic asymmetric coupling of vinylogous species is developed via deconjugated butenolide addition to vinylogous imines in situ generated from arylsulfonyl indoles. With quinine-derived bifunctional squaramide as the catalyst, a series of structurally diverse enantioenriched sec-alkyl-3-substituted indoles containing valuable γ,γ-disubstituted butenolide moieties and adjacent quaternary-tertiary stereocenters are obtained in synthetically viable results (up to 97% yield, 77 : 23 dr and 97% ee).
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Affiliation(s)
- Shu-Pei Yuan
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China and Institute for Advanced Study, Chengdu University, Chengdu 610106, China. and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xia-Yan Zhang
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China and Institute for Advanced Study, Chengdu University, Chengdu 610106, China. and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yun-Qing Jia
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China and Institute for Advanced Study, Chengdu University, Chengdu 610106, China. and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhen-Hua Wang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Yong You
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Ming-Qiang Zhou
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Wei-Cheng Yuan
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
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11
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Hassan EA, Mostafa HM, Zayed SE. A new utility of 1,3,3-tri(1 H-indol-3-yl)propan-1-one as a precursor for synthesizing of oxoketene gem-dithiol and 1,2-dithiole-3-thione, using eco-friendly lemon juice as a catalyst. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2020.1854756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Entesar A. Hassan
- Faculty of science, Chemistry Department, South Valley University, Qena, Egypt
| | - Hadir M. Mostafa
- Faculty of science, Chemistry Department, South Valley University, Qena, Egypt
| | - Salem E. Zayed
- Faculty of science, Chemistry Department, South Valley University, Qena, Egypt
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12
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Win KMN, Sonawane AD, Koketsu M. Synthesis of selenated tetracyclic indoloazulenes via iodine and diorganyl diselenides. Org Biomol Chem 2021; 19:3199-3206. [PMID: 33885574 DOI: 10.1039/d1ob00268f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Herein, we report an efficient protocol for the synthesis of selenated tetracyclic indoloazulenes. The reaction of diorganyl diselenides with molecular iodine in dichloromethane leads to the in situ formation of organo selenenyl iodide. The synthesis of selenylated tetracyclic indoloazulenes through intramolecular cascade cyclization has been achieved via organo selenenyl iodide and bisindole at room temperature under metal-free conditions in good yields. All compounds were fully characterized by the FT-IR, HRMS, and 1H, 13C and 77Se NMR spectral data.
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Affiliation(s)
- Khin Myat Noe Win
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu 501-1193, Japan.
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13
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Zhou XY, Chen X, Lei YZ. Ru-catalyzed oxidative dearomatization-alkoxylation of N-Boc indoles. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2020.1859542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Xiao-Yu Zhou
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, China
| | - Xia Chen
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, China
| | - Yi-Zhu Lei
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, China
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14
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Deb ML, Saikia BS, Borpatra PJ, Baruah PK. α-C–H functionalization of tertiary amines catalyzed/promoted by molecular iodine/derivatives. NEW J CHEM 2021. [DOI: 10.1039/d1nj02695j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A recent review on the α-C–H functionalization of tertiary amines using low-cost and benign I2 or its derivatives.
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Affiliation(s)
- Mohit L. Deb
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati 781014
- India
| | - B. Shriya Saikia
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati 781014
- India
| | - Paran J. Borpatra
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati 781014
- India
| | - Pranjal K. Baruah
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati 781014
- India
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15
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Tang A, Jin W, Liu C. Trimethylsilyl Bromide-Induced Regioselective Dimerization of N-Protected Indoles to 2,3'-Linked Indolylindolines. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202109011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Zheng L, Tao K, Guo W. Recent Developments in Photo‐Catalyzed/Promoted Synthesis of Indoles and Their Functionalization: Reactions and Mechanisms. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001079] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lvyin Zheng
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province Gannan Normal University Ganzhou 341000 People's Republic of China
| | - Kailiang Tao
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province Gannan Normal University Ganzhou 341000 People's Republic of China
| | - Wei Guo
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province Gannan Normal University Ganzhou 341000 People's Republic of China
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17
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Zhou XY, Chen X, Liu HL. Ru-catalyzed oxidative dearomatization-hydroxylation of N-Boc indoles. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1836564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Xiao-Yu Zhou
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, China
| | - Xia Chen
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, China
| | - Hai-Long Liu
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, China
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18
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Liu J, Wang Z, Wang K, Liu D, Yang Y, Fan J, Zhuo K, Yue Y. Elemental Sulfur‐Promoted [2+3+1] Annulation for Synthesis of Functionalized Thiochromeno[2,3‐
b
]indoles from Indole Derivatives. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Zhixian Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Ke Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Dong Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Yan Yang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Junjun Fan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Kelei Zhuo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
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19
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A straightforward approach for the synthesis of novel fused thiopyrano [2, 3-b] indole derivatives from the Intramolecular Friedel-Crafts acylation. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127854] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Shi L, Liu Y, Wang C, Yuan X, Liu X, Wu L, Pan Z, Yu Q, Xu C, Yang G. Synthesis of 1-(β-coumarinyl)-1-(β-indolyl)trifluoroethanols through regioselective Friedel–Crafts alkylation of indoles with β-(trifluoroacetyl)coumarins catalyzed by Sc(OTf)3. RSC Adv 2020; 10:13929-13935. [PMID: 35498470 PMCID: PMC9051918 DOI: 10.1039/d0ra01237h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 03/20/2020] [Indexed: 11/22/2022] Open
Abstract
A highly efficient Friedel–Crafts alkylation of indole derivatives with β-(trifluoroacetyl)coumarins using Sc(OTf)3 as a catalyst has been developed, which gives regioselective 1,2-adducts to afford 1-(β-coumarinyl)-1-(β-indolyl)trifluoroethanols. A series of tertiary trifluoroethanols containing different indole and coumarin groups were synthesized in moderate to excellent yields (up to 95%) in the presence of 5 mol% catalyst in a short time (only 2 minutes at least). A mechanism of the reaction, in which the trace amount of water plays the role of proton transfer in catalyzing circulation was proposed and confirmed. A Friedel–Crafts alkylation of indoles with β-(trifluoroacetyl)coumarins catalyzed by Sc(OTf)3 to afford 1-(β-coumarinyl)-1-(β-indolyl)trifluoroethanols in a short time and high yield was developed.![]()
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Affiliation(s)
- Lijun Shi
- School of Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Ying Liu
- School of Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Caixia Wang
- School of Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Xinxin Yuan
- College of Resource and Environment
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Xiaobiao Liu
- School of Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Lulu Wu
- School of Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Zhenliang Pan
- School of Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Qicheng Yu
- College of Animal Science and Veterinary Medicine
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Cuilian Xu
- School of Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Guoyu Yang
- School of Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
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21
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Taskesenligil Y, Lafzi F, Kilic H, Saracoglu N. Palladium‐catalyzed regioselective C2‐arylation of 5‐aminoindole. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3724] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yunus Taskesenligil
- Department of Chemistry, Faculty of SciencesAtatürk University Erzurum Turkey
| | - Ferruh Lafzi
- Department of Chemistry, Faculty of SciencesAtatürk University Erzurum Turkey
| | - Haydar Kilic
- Department of Chemistry, Faculty of SciencesAtatürk University Erzurum Turkey
- Oltu Vocational Training SchoolAtatürk University Erzurum Turkey
| | - Nurullah Saracoglu
- Department of Chemistry, Faculty of SciencesAtatürk University Erzurum Turkey
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22
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Qiao J, Jia X, Li P, Liu X, Zhao J, Zhou Y, Wang J, Liu H, Zhao F. Gold‐catalyzed Rapid Construction of Nitrogen‐containing Heterocyclic Compound Library with Scaffold Diversity and Molecular Complexity. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801494] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jin Qiao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Xiuwen Jia
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Pinyi Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Xiaoyan Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Jingwei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Yu Zhou
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia MedicaChinese Academy of Sciences 555 Zuchongzhi Road Shanghai 201203 People's Republic of China
- University of Chinese Academy of Sciences No.19 A Yuquan Road Beijing 100049 People's Republic of China
| | - Jiang Wang
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia MedicaChinese Academy of Sciences 555 Zuchongzhi Road Shanghai 201203 People's Republic of China
- University of Chinese Academy of Sciences No.19 A Yuquan Road Beijing 100049 People's Republic of China
| | - Hong Liu
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia MedicaChinese Academy of Sciences 555 Zuchongzhi Road Shanghai 201203 People's Republic of China
- University of Chinese Academy of Sciences No.19 A Yuquan Road Beijing 100049 People's Republic of China
| | - Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
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23
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Borpatra PJ, Deka B, Deb ML, Baruah PK. Recent advances in intramolecular C–O/C–N/C–S bond formationviaC–H functionalization. Org Chem Front 2019. [DOI: 10.1039/c9qo00863b] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review presents the construction of C–X bonds (X = O/N/S) by using intramolecular C–H functionalization for the synthesis of heterocyclic compounds.
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Affiliation(s)
- Paran J. Borpatra
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
| | - Bhaskar Deka
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
| | - Mohit L. Deb
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
| | - Pranjal K. Baruah
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
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24
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Regioselective Synthesis of 1,6‐Dihydropyrrolo[2,3‐
g
]indazole Derivatives
via
Three‐Component Domino Reaction. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3372] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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25
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Kumar GS, Singh D, Kumar M, Kapur M. Palladium-Catalyzed Aerobic Oxidative Coupling of Allylic Alcohols with Anilines in the Synthesis of Nitrogen Heterocycles. J Org Chem 2018. [DOI: 10.1021/acs.joc.8b00287] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Gangam Srikanth Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Diksha Singh
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Manish Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
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26
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Polák P, Tobrman T. The synthesis of polysubstituted indoles from 3-bromo-2-indolyl phosphates. Org Biomol Chem 2018; 15:6233-6241. [PMID: 28702629 DOI: 10.1039/c7ob01127j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel methodology for the synthesis of functionalised indoles based on the cross-coupling reactions of 3-bromo-2-indolyl phosphates is described. The preparation involves the conversion of easily available 2-oxindoles to 3,3-dibromo-2-oxindoles followed by the Perkow reaction affording 3-bromo-2-indolyl phosphates. Then bromine atom is substituted regioselectively by the Suzuki coupling reaction. We observed that aluminum chloride promoted the reaction of 3-substituted-2-indolyl phosphates with organozinc reagents furnishing 2,3-disubstituted indoles as final products. The overall diversity and efficiency of the methodology was demonstrated by the synthesis of bioactive molecule from easily available substances.
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Affiliation(s)
- Peter Polák
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic.
| | - Tomáš Tobrman
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic.
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27
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Corsello MA, Kim J, Garg NK. Indole diterpenoid natural products as the inspiration for new synthetic methods and strategies. Chem Sci 2017; 8:5836-5844. [PMID: 28970940 PMCID: PMC5618777 DOI: 10.1039/c7sc01248a] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Accepted: 06/15/2017] [Indexed: 12/21/2022] Open
Abstract
Indole terpenoids comprise a large class of natural products with diverse structural topologies and a broad range of biological activities. Accordingly, indole terpenoids have and continue to serve as attractive targets for chemical synthesis. Many synthetic efforts over the past few years have focused on a subclass of this family, the indole diterpenoids. This minireview showcases the role indole diterpenoids have played in inspiring the recent development of clever synthetic strategies, and new chemical reactions.
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Affiliation(s)
- Michael A Corsello
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095 , USA .
| | - Junyong Kim
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095 , USA .
| | - Neil K Garg
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095 , USA .
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28
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Total synthesis of architecturally complex indole terpenoids: strategic and tactical evolution. J Antibiot (Tokyo) 2017; 71:185-204. [PMID: 28852179 DOI: 10.1038/ja.2017.94] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 07/01/2017] [Accepted: 07/08/2017] [Indexed: 02/07/2023]
Abstract
Indole terpenes have attracted the interests of synthetic chemists due to their complex architectures and potent biological activities. Examples of total syntheses of several indole terpenes were reviewed in this article to honor Professor KC Nicolaou.
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29
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Kaur J, Chauhan P, Singh S, Chimni SS. Journey Heading towards Enantioselective Synthesis Assisted by Organocatalysis. CHEM REC 2017; 18:137-153. [DOI: 10.1002/tcr.201700020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Indexed: 12/27/2022]
Affiliation(s)
- Jasneet Kaur
- Department of Chemistry, U.G.C. Centre of Advanced Studies in Chemistry; Guru Nanak Dev University; Amritsar India
| | - Pankaj Chauhan
- Institute of Organic Chemistry; RWTH Aachen University, Germany
| | - Sarbjit Singh
- Department of Chemistry; University of Texas at Dallas, USA
| | - Swapandeep Singh Chimni
- Department of Chemistry, U.G.C. Centre of Advanced Studies in Chemistry; Guru Nanak Dev University; Amritsar India
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30
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Guo J, Chen S, Liu J, Guo J, Chen W, Cai Q, Liu P, Sun P. Iodine-Catalyzed Azidation/Cyclization Cascade Approach to 3a-Azidofuroindolines and -pyrroloindolines under Mild Conditions. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700618] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jiajing Guo
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Siyu Chen
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Jingyuan Liu
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Jialiang Guo
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Weimin Chen
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Qian Cai
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Peijun Liu
- Pharmacy School; College of Pharmacy; Zunyi Medical University; 563003 Zunyi P. R. China
| | - Pinghua Sun
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
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31
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Xing ZH, Zhang Y, Wang Y, Xu XP, Ji SJ. Construction of chiral 3,3-disubstituted oxindoles by a thiourea-catalyzed substitution of phenylsulfonyl with 2-naphthol. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.01.077] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Chelucci G. Metal-catalyzed dehydrogenative synthesis of pyrroles and indoles from alcohols. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.09.014] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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33
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Ling L, Cao J, Hu J, Zhang H. Copper-catalyzed N-alkylation of indoles by N-tosylhydrazones. RSC Adv 2017. [DOI: 10.1039/c7ra03765a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
An efficient method for direct N-alkylation of indoles via copper-catalyzed reductive cross coupling between N-tosylhydrazones and indoles has been developed.
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Affiliation(s)
- Li Ling
- College of Chemistry & Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
| | - Jing Cao
- College of Chemistry & Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
| | - Jianfeng Hu
- College of Chemistry & Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
| | - Hao Zhang
- College of Chemistry & Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
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34
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Tsukano C. Palladium(0)-Catalyzed Benzylic C( sp3)–H Functionalization for the Concise Synthesis of Heterocycles and Its Applications. Chem Pharm Bull (Tokyo) 2017; 65:409-425. [DOI: 10.1248/cpb.c16-00969] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Chihiro Tsukano
- Graduate School of Pharmaceutical Sciences, Kyoto University
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35
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Borrmann R, Knop N, Rueping M. Asymmetric Synthesis of Optically Active Spirocyclic Indoline Scaffolds through an Enantioselective Reduction of Indoles. Chemistry 2016; 23:798-801. [DOI: 10.1002/chem.201605450] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Ruediger Borrmann
- Institute of Organic Chemistry; RWTH Aachen; Landoltweg 1 52074 Aachen Germany), Fax: (+49) 241-809-2665
| | - Nils Knop
- Institute of Organic Chemistry; RWTH Aachen; Landoltweg 1 52074 Aachen Germany), Fax: (+49) 241-809-2665
| | - Magnus Rueping
- Institute of Organic Chemistry; RWTH Aachen; Landoltweg 1 52074 Aachen Germany), Fax: (+49) 241-809-2665
- King Abdullah University of Science and Technology (KAUST); KAUST Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
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36
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37
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Karkhelikar MV, Rao VV, Shinde SS, Likhar PR. A new synthetic approach to pyrrolo[3,2- b ]indoles via regioselective formation of pyrrole and intramolecular C N coupling. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.09.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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38
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Wen LR, Shen QY, Guo WS, Li M. Copper-catalyzed tandem arylation–cyclization of 2-alkynylaryl isothiocyanates with diaryliodonium salts: an efficient synthesis of thiochromeno[2,3-b]indoles. Org Chem Front 2016. [DOI: 10.1039/c6qo00133e] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A Cu-catalyzed arylation–cyclization approach is developed for the synthesis of thiochromeno[2,3-b]indoles through the S-arylation, 5-endo-trig cyclization, and Friedel–Crafts-type cyclization sequence.
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Affiliation(s)
- Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Qiang-Yu Shen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Wei-Si Guo
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
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39
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Guo S, Chen B, Guo X, Zhang G, Yu Y. Mn(II)-catalyzed synthesis of benzo[f]indole-4,9-diones via vinyl azides and 2-hydroxynaphthoquinone. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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A convenient synthesis of 3-formyl-2-thioacetamide-indole derivatives via the one-pot reaction of indolin-2-thiones, isocyanides and chloroacetylchloride. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.11.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Barreiro E, Sanz-Vidal A, Tan E, Lau SH, Sheppard TD, Díez-González S. HBF 4-Catalysed Nucleophilic Substitutions of Propargylic Alcohols. European J Org Chem 2015; 2015:7544-7549. [PMID: 26693210 PMCID: PMC4676292 DOI: 10.1002/ejoc.201501249] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Indexed: 11/16/2022]
Abstract
The activity of HBF4 (aqueous solution) as a catalyst in propargylation reactions is presented. Diverse types of nucleophiles were employed in order to form new C-O, C-N and C-C bonds in technical acetone and in air. Good to excellent yields and good chemoselectivities were obtained using low acid loading (typically 1 mol-%) under simple reaction conditions.
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Affiliation(s)
- Elena Barreiro
- Department of Chemistry, Imperial College London Exhibition RoadSouth Kensington, London SW7 2AZ, UK, http://www3.imperial.ac.uk/diez-gonzalezgroup
| | - Alvaro Sanz-Vidal
- Department of Chemistry, Imperial College London Exhibition RoadSouth Kensington, London SW7 2AZ, UK, http://www3.imperial.ac.uk/diez-gonzalezgroup
| | - Eric Tan
- Department of Chemistry, Imperial College London Exhibition RoadSouth Kensington, London SW7 2AZ, UK, http://www3.imperial.ac.uk/diez-gonzalezgroup
| | - Shing-Hing Lau
- Department of Chemistry, Imperial College London Exhibition RoadSouth Kensington, London SW7 2AZ, UK, http://www3.imperial.ac.uk/diez-gonzalezgroup
| | - Tom D Sheppard
- Department of Chemistry, University College London Christopher Ingold Laboratories 20 Gordon StreetLondon WC1H 0AJ, UK
| | - Silvia Díez-González
- Department of Chemistry, Imperial College London Exhibition RoadSouth Kensington, London SW7 2AZ, UK, http://www3.imperial.ac.uk/diez-gonzalezgroup
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42
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Lv L, Qi L, Guo Q, Shen B, Li Z. Iron-Catalyzed Divergent Tandem Radical Annulation of Aldehydes with Olefins toward Indolines and Dihydropyrans. J Org Chem 2015; 80:12562-71. [DOI: 10.1021/acs.joc.5b02457] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Leiyang Lv
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Longying Qi
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Qiaoxia Guo
- State Key
Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Baojian Shen
- State Key
Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Zhiping Li
- Department of Chemistry, Renmin University of China, Beijing 100872, China
- State Key
Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
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43
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Huang S, Shao Y, Zhang L, Zhou X. Cycloamidination of Aminoalkenes with Nitriles: Synthesis of Substituted 2-Imidazolines and Tetrahydropyrimidines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508442] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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44
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Huang S, Shao Y, Zhang L, Zhou X. Cycloamidination of Aminoalkenes with Nitriles: Synthesis of Substituted 2‐Imidazolines and Tetrahydropyrimidines. Angew Chem Int Ed Engl 2015; 54:14452-6. [DOI: 10.1002/anie.201508442] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Shujian Huang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
| | - Yinlin Shao
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
| | - Lixin Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
| | - Xigeng Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
- State Key Laboratory of Organometallic Chemistry, Shanghai 200032 (P.R. China)
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45
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Kokkonda P, Brown KR, Seguin TJ, Wheeler SE, Vaddypally S, Zdilla MJ, Andrade RB. Biomimetic Total Syntheses of (−)-Leucoridines A and C through the Dimerization of (−)-Dihydrovalparicine. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Suárez A, Gohain M, Fernández-Rodríguez MA, Sanz R. Synthesis of Fused Polycyclic Indoles by Brønsted Acid-Catalyzed Intramolecular Alkylation of Indoles with Alcohols. J Org Chem 2015; 80:10421-30. [DOI: 10.1021/acs.joc.5b02048] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Anisley Suárez
- Departamento de Química,
Área de Química Orgánica, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Mukut Gohain
- Departamento de Química,
Área de Química Orgánica, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Manuel A. Fernández-Rodríguez
- Departamento de Química,
Área de Química Orgánica, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Roberto Sanz
- Departamento de Química,
Área de Química Orgánica, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
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47
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Kitanosono T, Miyo M, Kobayashi S. The combined use of cationic palladium(II) with a surfactant for the C–H functionalization of indoles and pyrroles in water. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.044] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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49
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Kokkonda P, Brown KR, Seguin TJ, Wheeler SE, Vaddypally S, Zdilla MJ, Andrade RB. Biomimetic Total Syntheses of (-)-Leucoridines A and C through the Dimerization of (-)-Dihydrovalparicine. Angew Chem Int Ed Engl 2015; 54:12632-5. [PMID: 26315453 DOI: 10.1002/anie.201505198] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 07/23/2015] [Indexed: 12/11/2022]
Abstract
Concise biomimetic syntheses of the Strychnos-Strychnos-type bis-indole alkaloids (-)-leucoridine A (1) and C (2) were accomplished through the biomimetic dimerization of (-)-dihydrovalparicine (3). En route to 3, the known alkaloids (+)-geissoschizoline (8) and (-)-dehydrogeissoschizoline (10) were also prepared. DFT calculations were employed to elucidate the mechanism, which favors a stepwise aza-Michael/spirocyclization sequence over the alternate hetero-Diels-Alder cycloaddition reaction.
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Affiliation(s)
- Praveen Kokkonda
- Department of Chemistry, Temple University, Philadelphia, PA 19122 (USA) https://www.cst.temple.edu/∼randrade
| | - Keaon R Brown
- Department of Chemistry, Temple University, Philadelphia, PA 19122 (USA) https://www.cst.temple.edu/∼randrade
| | - Trevor J Seguin
- Department of Chemistry, Texas A & M University, College Station, TX 77843 (USA)
| | - Steven E Wheeler
- Department of Chemistry, Texas A & M University, College Station, TX 77843 (USA)
| | - Shivaiah Vaddypally
- Department of Chemistry, Temple University, Philadelphia, PA 19122 (USA) https://www.cst.temple.edu/∼randrade
| | - Michael J Zdilla
- Department of Chemistry, Temple University, Philadelphia, PA 19122 (USA) https://www.cst.temple.edu/∼randrade
| | - Rodrigo B Andrade
- Department of Chemistry, Temple University, Philadelphia, PA 19122 (USA) https://www.cst.temple.edu/∼randrade.
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Wang R, Jing L, Qin D. Organocatalytic asymmetric Michael addition of benzofuran-2(3H)-ones to alkylideneindolenines generated in situ from arenesulfonylalkylindoles. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.071] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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