1
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Nasuhipur F, Ghasemi Z, Poupon M, Dušek M. POCl 3 mediated one-pot deoxygenative aromatization and electrophilic chlorination of dihydroxy-2-methyl-4-oxo-indeno[1,2- b]pyrroles. RSC Adv 2023; 13:17812-17816. [PMID: 37323449 PMCID: PMC10261912 DOI: 10.1039/d3ra02515b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 06/07/2023] [Indexed: 06/17/2023] Open
Abstract
A class of indenopyrroles is presented by the treatment of known dihydroxy-2-methyl-4-oxoindeno[1,2-b]pyrroles with phosphorus oxychloride (POCl3). The elimination of vicinal hydroxyl groups at the 3a and 8b positions, formation of a π bond, and electrophilic chlorination of the methyl group attached to C2 resulted in the fused aromatic pyrrole structures. Benzylic substitution of various nucleophiles such as H2O, EtOH, and NaN3 with a chlorine atom gave diverse 4-oxoindeno[1,2-b]pyrrole derivatives in 58 to 93% yields. The reaction was investigated in different aprotic solvents, and the highest reaction yield was obtained in DMF. The structures of the products were confirmed by spectroscopic methods, elemental analysis, and X-ray crystallography.
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Affiliation(s)
- Forough Nasuhipur
- Department of Organic Chemistry and Biochemistry, Faculty of Chemistry, University of Tabriz Tabriz 5166614766 Iran
| | - Zarrin Ghasemi
- Department of Organic Chemistry and Biochemistry, Faculty of Chemistry, University of Tabriz Tabriz 5166614766 Iran
| | - Morgane Poupon
- Institute of Physics ASCR, v.v.i. Na Slovance 2, 182 21 Praha 8 Czech Republic
| | - Michal Dušek
- Institute of Physics ASCR, v.v.i. Na Slovance 2, 182 21 Praha 8 Czech Republic
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2
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Kou S, Huo J, Wang Y, Sun S, Xue F, Mao J, Zhang J, Chen L, Walsh PJ. Synthesis of Indoles via Domino Reactions of 2-Methoxytoluene and Nitriles. J Org Chem 2022; 88:5147-5152. [PMID: 36520533 DOI: 10.1021/acs.joc.2c02128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
2-Arylindoles are privileged structures widely present in biologically active molecules. New sustainable synthetic routes toward their synthesis are, therefore, in high demand. Herein, a mixed base-promoted benzylic C-H deprotonation of commercially available ortho-anisoles, addition of the resulting anion to benzonitriles, and SNAr to displace the methoxy group provide indoles. A diverse array of 2-arylindoles is prepared with good yields (>30 examples, yields up to 99%) without added transition metal catalysts.
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Affiliation(s)
- Song Kou
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Jingqian Huo
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Ying Wang
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Susu Sun
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Fei Xue
- Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Jianyou Mao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Jinlin Zhang
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Lai Chen
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Patrick J. Walsh
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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3
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Li C, Wang H, Liu L, Sun R, Wang X, Zhou M, Li L. Base‐Catalyzed Intramolecular Self‐Cyclization of
o
‐Alkenylaryl Isocyanides: Access to 4‐Cyano‐3‐arylquinolines. ChemistrySelect 2022. [DOI: 10.1002/slct.202103829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chao Li
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 P. R. China
| | - He Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 P. R. China
| | - Lu Liu
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 P. R. China
| | - Ran Sun
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 P. R. China
| | - Xin Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 P. R. China
| | - Ming‐Dong Zhou
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 P. R. China
| | - Lei Li
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 P. R. China
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4
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Sunke R, Ahmed Khan S, Kumara Swamy KC. Pd-catalysed intramolecular transformations of indolylbenzenesulfonamides: ortho-sulfonamido-bi(hetero)aryls via C2-arylation and polycyclic sultams via C3 arylation. Org Biomol Chem 2022; 20:9148-9160. [DOI: 10.1039/d2ob01610a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Indolyl substituted iodo-sulfonamides deliver 2-aryl(sulfonamido)indoles in the presence of Pd(OAc)2/Ph3P/Et3N; the same reactants, using Pd(OAc)2/Ph3P/K2CO3, afford indole-fused sultams.
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Affiliation(s)
- Rajnikanth Sunke
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
| | - Shabbir Ahmed Khan
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
| | - K. C. Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
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5
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Xiao Y, Shen J, Wang L, Lu S, Li J. Diastereoselective Synthesis of
oxa
‐Bridged Tetracyclic Benzooxazines from the Reaction of 2‐Isocyanophenyloxyacrylates and Propargylic Esters. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100693] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Yao Xiao
- Department of Chemistry, College of Sciences & Institute for Sustainable Energy Shanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Jie Shen
- Department of Chemistry, College of Sciences & Institute for Sustainable Energy Shanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Li Wang
- College of Science Hangzhou Normal University, Hangzhou Zhejiang 310036 People's Republic of China
| | - Shanya Lu
- Department of Chemistry, College of Sciences & Institute for Sustainable Energy Shanghai University 99 Shangda Road Shanghai 200444 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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6
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Zhang T, Yu M, Huang H. Fe-catalyzed Fukuyama-type indole synthesis triggered by hydrogen atom transfer. Chem Sci 2021; 12:10501-10505. [PMID: 34447542 PMCID: PMC8356753 DOI: 10.1039/d1sc03058b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 07/05/2021] [Indexed: 02/03/2023] Open
Abstract
Fe, Co, and Mn hydride-initiated radical olefin additions have enjoyed great success in modern synthesis, yet the extension of other hydrogen radicalophiles instead of olefins remains largely elusive. Herein, we report an efficient Fe-catalyzed intramolecular isonitrile-olefin coupling reaction delivering 3-substituted indoles, in which isonitrile was firstly applied as the hydrogen atom acceptor in the radical generation step by MHAT. The protocol features low catalyst loading, mild reaction conditions, and excellent functional group tolerance.
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Affiliation(s)
- Tianze Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China Hefei 230026 P. R. China
| | - Min Yu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China Hefei 230026 P. R. China
| | - Hanmin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China Hefei 230026 P. R. China
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7
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Liu L, Li L, Wang X, Sun R, Zhou MD, Wang H. Mn(III)-Mediated Radical Cyclization of o-Alkenyl Aromatic Isocyanides with Boronic Acids: Access to N-Unprotected 2-Aryl-3-cyanoindoles. Org Lett 2021; 23:5826-5830. [PMID: 34323503 DOI: 10.1021/acs.orglett.1c01979] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The synthesis of N-unprotected 2-aryl-3-cyanoindoles was realized via the Mn(III)-mediated radical cascade cyclization of o-alkenyl aromatic isocyanides with boronic acids. A possible mechanism involving a sequential intermolecular radical addition, intramolecular cyclization, and cleavage of the C-C bond under mild reaction conditions is proposed. Mechanism studies show that H2O or O2 might provide the oxygen source for the elimination of benzaldehyde.
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Affiliation(s)
- Lu Liu
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, P. R. China
| | - Lei Li
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, P. R. China
| | - Xin Wang
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, P. R. China
| | - Ran Sun
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, P. R. China
| | - Ming-Dong Zhou
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, P. R. China
| | - He Wang
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, P. R. China
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8
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Chen S, Oliva M, Van Meervelt L, Van der Eycken EV, Sharma UK. Palladium‐Catalyzed Domino Synthesis of 2,3‐Difunctionalized Indoles
via
Migratory Insertion of Isocyanides in Batch and Continuous Flow. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100339] [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)
- Su Chen
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Monica Oliva
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Luc Van Meervelt
- Biomolecular Architecture Department of Chemistry KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
- Peoples' Friendship University of Russia (RUDN University) Miklukho-Maklaya street 6 RU-117198 Moscow Russia
| | - Upendra K. Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
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9
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Amin S, Alam MM, Akhter M, Najmi AK, Siddiqui N, Husain A, Shaquiquzzaman M. A review on synthetic procedures and applications of phosphorus oxychloride (POCl 3) in the last biennial period (2018–19). PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2020.1831499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shaista Amin
- Drug Design & Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - M. Mumtaz Alam
- Drug Design & Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Mymoona Akhter
- Drug Design & Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - A. K. Najmi
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Nadeem Siddiqui
- Drug Design & Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Asif Husain
- Drug Design & Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - M. Shaquiquzzaman
- Drug Design & Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
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10
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Dong J, Wang L, Li H, Leng X, Guo X, Hu Z, Xu X. Self-cyclization vs. dimerization of o-alkenyl arylisocyanides: chemodivergent synthesis of quinolines and pyrrolo-fused diindoles. Org Chem Front 2021. [DOI: 10.1039/d1qo00132a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Solvent-dependent chemoselective MBH-type self-cyclization and dimerization of o-alkenyl arylisocyanides were developed for the efficient and chemodivergent synthesis of various 3-acylquinoline and pyrrolo-fused diindole frameworks.
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Affiliation(s)
- Jinhuan Dong
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Lei Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Haoyue Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Xinrong Leng
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Xiaoyu Guo
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Zhongyan Hu
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Xianxiu Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
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11
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Wang J, Li D, Li J, Zhu Q. Advances in palladium-catalysed imidoylative cyclization of functionalized isocyanides for the construction of N-heterocycles. Org Biomol Chem 2021; 19:6730-6745. [PMID: 34259697 DOI: 10.1039/d1ob00864a] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Palladium-catalysed isocyanide insertion reactions have witnessed great progress in recent years. In particular, imidoylative cyclization of functionalized isocyanides was successfully developed by taking advantage of the adjustable substituents on the isocyano group, opening a new avenue to access a variety of nitrogen-containing heterocycles. In this review article, we summarize the advances of functionalized isocyanide insertion reactions and highlight the breakthroughs of enantioselective palladium catalysed imidoylation reactions by using this strategy. Additionally, copper-catalysed cyclization reactions of functionalized isocyanides are briefly discussed.
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Affiliation(s)
- Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Dan Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Jing Li
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China and University of Chinese Academy of Sciences, Beijing 100049, China and Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, China.
| | - Qiang Zhu
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China and University of Chinese Academy of Sciences, Beijing 100049, China and Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, China.
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12
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Kumar D, Sharma S, Kalra S, Singh G, Monga V, Kumar B. Medicinal Perspective of Indole Derivatives: Recent Developments and Structure-Activity Relationship Studies. Curr Drug Targets 2020; 21:864-891. [DOI: 10.2174/1389450121666200310115327] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/11/2020] [Accepted: 02/24/2020] [Indexed: 12/22/2022]
Abstract
Heterocyclic compounds play a significant role in various biological processes of the human
body and many of them are in clinical use due to their diverse, chemical and biological properties.
Among these, indole is one of the most promising pharmacologically active molecules. Due to its
chemical reactivity, indole has been willingly modified to obtain a variety of new lead molecules,
which has been successfully utilized to obtained novel drug candidates for the treatment of different
pharmacological diseases. Indole-based compounds such as vincristine (anticancer), reserpine (antihypertensive),
amedalin (antidepressant) and many more describe the medicinal and pharmacological
importance of the indole in uplifting human life. In this review, we compiled various reports on indole
derivatives and their biological significance, including antifungal, antiprotozoal, antiplatelet, anti-
Alzheimer’s, anti-Parkinson’s, antioxidant and anticancer potential from 2015 onwards. In addition,
structure-activity relationship studies of the different derivatives have been included. We have also
discussed novel synthetic strategies developed during this period for the synthesis of different indole
derivatives. We believe that this review article will provide comprehensive knowledge about the medicinal
importance of indoles and will help in the design and synthesis of novel indole-based molecules
with high potency and efficacy.
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Affiliation(s)
- Devendra Kumar
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga, Punjab, 142001, India
| | - Sahil Sharma
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga, Punjab, 142001, India
| | - Sourav Kalra
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga, Punjab, 142001, India
| | - Gurpreet Singh
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga, Punjab, 142001, India
| | - Vikramdeep Monga
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga, Punjab, 142001, India
| | - Bhupinder Kumar
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga, Punjab, 142001, India
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13
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Zhang X, Zhu P, Zhang R, Li X, Yao T. Visible-Light-Induced Decarboxylative Cyclization of 2-Alkenylarylisocyanides with α-Oxocarboxylic Acids: Access to 2-Acylindoles. J Org Chem 2020; 85:9503-9513. [PMID: 32600039 DOI: 10.1021/acs.joc.0c00039] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient and practical protocol for visible-light-induced decarboxylative cyclization of 2-alkenylarylisocyanides with α-oxocarboxylic acids has been developed, which afforded a broad range of 2-acylindoles in moderate to good yields. The reaction proceeds through a cascade of acyl radical addition/cyclization reactions under irradiation of an Ir3+ photoredox catalyst without external oxidants and features simple operation, scalability, a broad substrate scope, and good functional group tolerance.
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Affiliation(s)
- Xiaofei Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.,Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Peiyuan Zhu
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Ruihong Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Xiang Li
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.,Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Tuanli Yao
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.,Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
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14
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Collet JW, van der Nol EA, Roose TR, Maes BUW, Ruijter E, Orru RVA. Synthesis of Quinazolin-4-ones by Copper-Catalyzed Isocyanide Insertion. J Org Chem 2020; 85:7378-7385. [PMID: 32400159 PMCID: PMC7281788 DOI: 10.1021/acs.joc.0c00771] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
![]()
Herein,
we report a novel copper-catalyzed imidoylative cross-coupling/cyclocondensation
reaction between 2-isocyanobenzoates and amines efficiently producing
quinazolin-4-ones. The reaction utilizes Cu(II) acetate as an environmentally
benign catalyst in combination with a mild base and proceeds well
in anisole, a recommended, sustainable solvent. Additionally, the
reaction does not require dry conditions or inert atmospheres for
optimal performance. The scope of this isocyanide insertion reaction
is rather broad, tolerating various functionalized isocyanobenzoates
and a range of substituted amines, although the use of aromatic amines
as nucleophiles requires microwave heating.
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Affiliation(s)
- Jurriën W Collet
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands, Web: www.syborch.com.,Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Ant-werp, Belgium
| | - Edith A van der Nol
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands, Web: www.syborch.com
| | - Tom R Roose
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands, Web: www.syborch.com
| | - Bert U W Maes
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Ant-werp, Belgium
| | - Eelco Ruijter
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands, Web: www.syborch.com
| | - Romano V A Orru
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands, Web: www.syborch.com
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15
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Santos MS, Betim HLI, Kisukuri CM, Campos Delgado JA, Corrêa AG, Paixão MW. Photoredox Catalysis toward 2-Sulfenylindole Synthesis through a Radical Cascade Process. Org Lett 2020; 22:4266-4271. [DOI: 10.1021/acs.orglett.0c01297] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Marilia S. Santos
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
| | - Hugo L. I. Betim
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
| | - Camila M. Kisukuri
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
| | - Jose Antonio Campos Delgado
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
| | - Arlene G. Corrêa
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
| | - Márcio W. Paixão
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
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16
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Mao S, Wang H, Liu L, Wang X, Zhou M, Li L. Trifluoromethylation/Difluoromethylation‐Initiated Radical Cyclization of
o
‐Alkenyl Aromatic Isocyanides for Direct Construction of 4‐Cyano‐2‐Trifluoromethyl/Difluoromethyl‐Containing Quinolines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000155] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shukuan Mao
- School of Chemistry and Materials ScienceLiaoning Shihua University Dandong Road 1 Fushun 113001 People's Republic of China
| | - He Wang
- School of Chemistry and Materials ScienceLiaoning Shihua University Dandong Road 1 Fushun 113001 People's Republic of China
| | - Lu Liu
- School of Chemistry and Materials ScienceLiaoning Shihua University Dandong Road 1 Fushun 113001 People's Republic of China
| | - Xin Wang
- School of Chemistry and Materials ScienceLiaoning Shihua University Dandong Road 1 Fushun 113001 People's Republic of China
| | - Ming‐Dong Zhou
- School of Chemistry and Materials ScienceLiaoning Shihua University Dandong Road 1 Fushun 113001 People's Republic of China
| | - Lei Li
- School of Chemistry and Materials ScienceLiaoning Shihua University Dandong Road 1 Fushun 113001 People's Republic of China
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17
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Collet JW, Roose TR, Ruijter E, Maes BUW, Orru RVA. Base Metal Catalyzed Isocyanide Insertions. Angew Chem Int Ed Engl 2020; 59:540-558. [DOI: 10.1002/anie.201905838] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/01/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Jurriën W. Collet
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS)Vrije Universiteit Amsterdam De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Thomas R. Roose
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS)Vrije Universiteit Amsterdam De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Eelco Ruijter
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS)Vrije Universiteit Amsterdam De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Bert U. W. Maes
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Romano V. A. Orru
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS)Vrije Universiteit Amsterdam De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
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18
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Yang M, Meng XH, Wang Z, Gong Y, Zhao YL. Rhodium/copper-cocatalyzed coupling-cyclization of o-alkenyl arylisocyanides with vinyl azides: one-pot synthesis of α-carbolines. Org Chem Front 2020. [DOI: 10.1039/d0qo00994f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A novel rhodium/copper-cocatalyzed coupling–cyclization reaction of o-alkenyl arylisocyanides with vinyl azides has been developed. The reaction provides a new route to α-carbolines by the formation of two C–C bonds, one C–N bond and two aromatic rings in a single step.
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Affiliation(s)
- Ming Yang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Xiang-He Meng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Zhuo Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Yue Gong
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
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19
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Collet JW, Roose TR, Ruijter E, Maes BUW, Orru RVA. Base Metal Catalyzed Isocyanide Insertions. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905838] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jurriën W. Collet
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS)Vrije Universiteit Amsterdam De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Thomas R. Roose
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS)Vrije Universiteit Amsterdam De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Eelco Ruijter
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS)Vrije Universiteit Amsterdam De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Bert U. W. Maes
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Romano V. A. Orru
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS)Vrije Universiteit Amsterdam De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
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20
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Benitez-Medina GE, Ortiz-Soto S, Cabrera A, Amézquita-Valencia M. Regioselective Synthesis of 2-Arylindoles via Palladium-Catalyzed Cyclization of Phenylglyoxal and 2-Anilinoacetophenones with Anilines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- G. Eliad Benitez-Medina
- Universidad Nacional Autónoma de México; Instituto de Química, Ciudad Universitaria; Circuito Exterior Ciudad de México 04510 México
| | - Sofía Ortiz-Soto
- Universidad Nacional Autónoma de México; Instituto de Química, Ciudad Universitaria; Circuito Exterior Ciudad de México 04510 México
| | - Armando Cabrera
- Universidad Nacional Autónoma de México; Instituto de Química, Ciudad Universitaria; Circuito Exterior Ciudad de México 04510 México
| | - Manuel Amézquita-Valencia
- Universidad Nacional Autónoma de México; Instituto de Química, Ciudad Universitaria; Circuito Exterior Ciudad de México 04510 México
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21
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Yang P, Xu W, Wang R, Zhang M, Xie C, Zeng X, Wang M. Potassium tert-Butoxide-Mediated Condensation Cascade Reaction: Transition Metal-Free Synthesis of Multisubstituted Aryl Indoles and Benzofurans. Org Lett 2019; 21:3658-3662. [PMID: 31025566 DOI: 10.1021/acs.orglett.9b01093] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An efficient and facile method to synthesize valuable disubstituted 2-aryl indoles and benzofurans in good yields has been demonstrated, based on a tert-butoxide-mediated condensation reaction involving a vinyl sulfoxide intermediate. Products are obtained from N- or O-benzyl benzaldehydes using dimethyl sulfoxide as a carbon source. The methodology features a wide functional group tolerance and transition metal-free environment. Preliminary mechanistic studies suggest that the reaction involves a tandem aldol reaction/Michael addition/dehydrosulfenylation/isomerization sequence through an ionic protocol.
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Affiliation(s)
- Pengfei Yang
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Weiyan Xu
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Rongchao Wang
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Min Zhang
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Chunsong Xie
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Xiaofei Zeng
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Min Wang
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
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22
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Song X, Gao C, Zhang X, Fan X. Synthesis of Diversely Functionalized 2 H-Chromenes through Pd-Catalyzed Cascade Reactions of 1,1-Dibromoolefin Derivatives with Arylboronic Acids. J Org Chem 2018; 83:15256-15267. [PMID: 30465428 DOI: 10.1021/acs.joc.8b02456] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this work, an unprecedented synthesis of (2 H-chromen-2-ylidene)acetates and (2 H-chromen-2-ylidene)ethanones with controlled stereoselectivity via Pd-catalyzed cascade reactions of 3-(2-(2,2-dibromovinyl)phenoxy)acrylates or 3-(2-(2,2-dibromovinyl)phenoxy)enones with aryl boronic acids has been established. This protocol combines two C-C bond forming reactions (an intermolecular Suzuki coupling followed by an intramolecular Heck coupling) in one pot under the catalysis of the same catalyst. Compared with literature methods for the preparation of 2 H-chromene derivatives, it has advantages such as easily obtainable or commercially available substrates, diverse substitution pattern of products, simple procedure, and excellent stereoselectivity. Interestingly, this cascade reaction could distinguish the subtle difference of the electron-withdrawing capacity and the size of various functional groups and thus resulted in a different chemoselectivity. In addition, the utility of the (2 H-chromen-2-ylidene)acetate thus obtained was showcased by its facile transformation into the synthetically and photophysically significant 3 H-xanthen-3-one derivative.
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Affiliation(s)
- Xia Song
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Cai Gao
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
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23
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Vidyasagar A, Shi J, Kreitmeier P, Reiser O. Bromo- or Methoxy-Group-Promoted Umpolung Electron Transfer Enabled, Visible-Light-Mediated Synthesis of 2-Substituted Indole-3-glyoxylates. Org Lett 2018; 20:6984-6989. [DOI: 10.1021/acs.orglett.8b02725] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Adiyala Vidyasagar
- University of Regensburg, Institute of Organic Chemistry, Universitätsstr. 31, 93053, Regensburg, Germany
| | - Jinwei Shi
- University of Regensburg, Institute of Organic Chemistry, Universitätsstr. 31, 93053, Regensburg, Germany
| | - Peter Kreitmeier
- University of Regensburg, Institute of Organic Chemistry, Universitätsstr. 31, 93053, Regensburg, Germany
| | - Oliver Reiser
- University of Regensburg, Institute of Organic Chemistry, Universitätsstr. 31, 93053, Regensburg, Germany
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24
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Luo YG, Basha RS, Reddy DM, Xue YJ, Chen TH, Lee CF. Palladium-Catalyzed Synthesis of 2,3-Diaryl-N-methylindoles from ortho-Alkynylanilines and Aryl Pinacol Boronic Esters. Org Lett 2018; 20:6872-6876. [DOI: 10.1021/acs.orglett.8b02835] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yue-Gui Luo
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, R.O.C
| | - R. Sidick Basha
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, R.O.C
| | | | - Yong-Jing Xue
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, R.O.C
| | - Te-Hsuan Chen
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, R.O.C
| | - Chin-Fa Lee
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, R.O.C
- Research Center for Sustainable Energy and Nanotechnology (RCSEN), National Chung Hsing University, Taichung, Taiwan 402, R.O.C
- Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung, Taiwan 402, R.O.C
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25
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Chen S, Feng DF, Li DY, Liu PN. Radical Cyanotrifluoromethylation of Isocyanides: Step-Economical Access to CF 3-Containing Nitriles, Amines, and Imines. Org Lett 2018; 20:5418-5422. [PMID: 30148642 DOI: 10.1021/acs.orglett.8b02328] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel copper-catalyzed radical cyanotrifluoromethylation has been achieved through a multicomponent reaction of isocyanides, Togni's reagent, and trimethylsilyl cyanides, affording trifluoroacetimidoyl nitriles in good yields. This reaction demonstrates a unique feature of merging two valuable functional groups-trifluoromethyl (CF3) and cyan (CN)-onto the same C atom. The transformation proceeds by the initial addition of the CF3 radical to isocyanide and the subsequent intermolecular C-CN formation. The products can be successfully transformed to a series of CF3-containing amines and imines that may serve in the synthesis of valuable pharmaceuticals and agrochemicals.
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Affiliation(s)
- Shuang Chen
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Lab for Advanced Materials and School of Chemistry & Molecular Engineering , East China University of Science & Technology , Meilong Road 130 , Shanghai 200237 , China
| | - Da-Fu Feng
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Lab for Advanced Materials and School of Chemistry & Molecular Engineering , East China University of Science & Technology , Meilong Road 130 , Shanghai 200237 , China
| | - Deng-Yuan Li
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Lab for Advanced Materials and School of Chemistry & Molecular Engineering , East China University of Science & Technology , Meilong Road 130 , Shanghai 200237 , China
| | - Pei-Nian Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Lab for Advanced Materials and School of Chemistry & Molecular Engineering , East China University of Science & Technology , Meilong Road 130 , Shanghai 200237 , China
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