1
|
Li JL, Yang Z, Shen S, Yang XL, Niu X. TEMPO-Mediated Interrupted 6π-Photocyclization of ortho-Biaryl-Appended 1,3-Dicarbonyl Compounds toward 10-Phenanthrenols. J Org Chem 2024; 89:44-56. [PMID: 38088910 DOI: 10.1021/acs.joc.3c01316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
In this paper, we present an example of a photoinduced catalyst, halogen-, and base-free TEMPO-mediated interrupted 6π-photocyclization/dehydrogenative aromatization of ortho-biaryl-appended 1,3-dicarbonyl compounds for the preparation of 10-phenanthrenols. The reaction involves rapid photocycloaddition via a 1,2-biradical of 1,3-dicarbonyl compounds, followed by subsequent dehydrogenative aromatization of 1,4-biradical intermediates using TEMPO as the commercially available oxidant rather than trapped by TEMPO to form an alkoxyamine product.
Collapse
Affiliation(s)
- Jun-Li Li
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Zhao Yang
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Shigang Shen
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Xiu-Long Yang
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Xiaoying Niu
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
- Postdoctoral Research Station of Chemistry Affiliated College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| |
Collapse
|
2
|
Olyaei A, Sadeghpour M. Chemistry of 3-cyanoacetyl indoles: synthesis, reactions and applications: a recent update. RSC Adv 2023; 13:21710-21745. [PMID: 37476036 PMCID: PMC10354596 DOI: 10.1039/d3ra04385a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 07/12/2023] [Indexed: 07/22/2023] Open
Abstract
Indole is a significant nitrogen-based heterocycle with particular importance in the synthesis of heterocyclic scaffolds. Indole based compounds have been recently attracting much attention due to their biological and pharmaceutical activities. 3-Substituted indoles such as cyanoacetyl indoles (CAIs) are nitrogen-heterocyclic compounds which are easily obtained from the reaction of indoles and cyanoacetic acid. They are versatile starting materials utilized for the construction of a wide variety of molecules containing indole moieties in organic synthesis. In this study, we provide an overview on the synthesis of 3-cyanoacetyl indoles (CAIs) and their recent applications in the multi-component reactions for the synthesis of various heterocyclic compounds such as pyranes, pyridines, dihydropyridines, pyrimidines, tetrahydropyrimidines, pyrazoles, pyrazolopyridines, pyrazolopyrimidines, pyridopyrimidines, tetrazolopyrimidines, triazolopyrimidines, furans, dihydrofurans, coumarins, pyrimido naphthyridines, chromenes, thiazoles, pyrimidoindazoles, pyrazoloquinolines, isoxazolopyridines, and carbazoles and their biological activities during the period of 2013 to 2022.
Collapse
Affiliation(s)
- Abolfazl Olyaei
- Department of Chemistry, Payame Noor University (PNU) PO BOX 19395-4697 Tehran Iran
| | - Mahdieh Sadeghpour
- Department of Chemistry, Qazvin Branch, Islamic Azad University Qazvin Iran +0098-28-33365275
| |
Collapse
|
3
|
Li JL, Yang XL, Shen S, Niu X. Synthesis of 10-Phenanthrenols via Photosensitized Triplet Energy Transfer, Photoinduced Electron Transfer, and Cobalt Catalysis. J Org Chem 2022; 87:16458-16472. [PMID: 36441578 DOI: 10.1021/acs.joc.2c02182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Due to the inert redox activity and high triplet energy, radical chemistry of 1,3-dicarbonyl compounds usually requires prefunctionalization substrates, external oxidant, and high-energy UV light. Here, we report a visible-light-driven photocatalyst/cobaloxime system composed of a photosensitized energy transfer reaction (PEnT) and photoinduced electron transfer reaction (PET) and with an interrupted 6π-photocyclization/dehydrogenative aromatization in one pot to synthesize 10-phenanthrenols. Preliminary mechanistic studies revealed that fac-Ir(ppy)3 plays the dual roles of energy transfer catalysis for photocycloaddition via 1,2-biradical intermediates of 1,3-dicarbonyl compounds and photoredox/cobaloxime catalysis dehydrogenative aromatization of 1,4-biradical rather than the intermediates via 6π photocyclization in the tandem reaction. In contrast to previous well-established radical chemistry of 1,3-dicarbonyl compounds, we provide a new strategy for the activation of 1,3-dicarbonyl compounds under visible light catalysis, affording a novel cyclization strategy with extremely high atom economy for the synthesis of 10-phenanthrenols.
Collapse
Affiliation(s)
- Jun-Li Li
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education and College of Chemistry and Environmental Science, Hebei University, Baoding 071002, P. R. China
| | - Xiu-Long Yang
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education and College of Chemistry and Environmental Science, Hebei University, Baoding 071002, P. R. China
| | - Shigang Shen
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education and College of Chemistry and Environmental Science, Hebei University, Baoding 071002, P. R. China
| | - Xiaoying Niu
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education and College of Chemistry and Environmental Science, Hebei University, Baoding 071002, P. R. China.,Postdoctoral Research Station of Chemistry Affiliated College of Chemistry and Environmental Science, Hebei University, Baoding 071002, P. R. China
| |
Collapse
|
4
|
Zhao YH, Chen JH, Liu M, Zhou YB, Wu H. Palladium‐Catalyzed Sequential C−H Activation/Amination of 2‐Iodobiphenyls with Benzoisoxazoles for Synthesis of Carbazoles. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200572] [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]
|
5
|
Fang F, Zheng H, Mao G, Chen S, Deng GJ. Metal- and Solvent-Free Synthesis of Tetrahydrobenzo[ c]carbazolones through NaI-Catalyzed Formal [4 + 2] Annulation. J Org Chem 2022; 87:6052-6063. [PMID: 35470673 DOI: 10.1021/acs.joc.2c00315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A novel strategy for the preparation of functional carbazoles through NaI-catalyzed formal [4 + 2] annulation of 2-(indol-3-yl)cyclohexanones and alkynes/alkenes has been developed. The present approach started from easily available raw materials and provided a variety of tetrahydrobenzo[c]carbazolones in satisfactory yields under metal- and solvent-free conditions. Furthermore, the products could be further transformed into structurally valuable carbazole-based conjugated derivatives.
Collapse
Affiliation(s)
- Fang Fang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China.,College of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, P. R. China
| | - Haolin Zheng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China
| | - Guojiang Mao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P. R. China
| | - Shanping Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China
| |
Collapse
|
6
|
Chen Z, Wang S, Liu K, Zhang R, Li Q, Bian W, Qiao R, Li C. Practical and Scalable Manufacturing Process for the Key Intermediate of Poly(ADP-Ribose) Polymerase Inhibitor Olaparib. ACS OMEGA 2022; 7:6313-6321. [PMID: 35224393 PMCID: PMC8867798 DOI: 10.1021/acsomega.1c06920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
Olaparib (Lynparza) is a potent, highly selective inhibitor of poly(ADP-ribose)polymerase enzymes, approved by the U.S. FDA and EMA for the treatment of ovarian cancer. Herein, we report a practical, economical, and scalable process for the synthesis of 2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoic acid, a key intermediate for olaparib. The low-cost industrial byproduct phthalhydrazide was used as the starting material to construct the phthalazinone moiety, which allowed access to the key intermediate by the Negishi coupling reaction. Optimization of each step has enabled the development of an environmentally benign and robust process with effective control of impurities.
Collapse
|
7
|
Mandal T, Dash J. Ring closing metathesis for the construction of carbazole and indole-fused natural products. Org Biomol Chem 2021; 19:9797-9808. [PMID: 34747427 DOI: 10.1039/d1ob01471d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The synthesis and functionalization of carbazole ring systems have received considerable attention in organic synthesis due to their widespread occurrence in biologically active compounds. One of the classical methods for the synthesis of carbazoles involves C-C bond formation of a biaryl amine moiety by oxidizing agents. Over the last few years, various new strategies have evolved for the synthesis of carbazole ring systems. During the past two decades, ring-closing metathesis (RCM) based approaches have been efficiently employed for the synthesis of nitrogen containing heteroaromatic systems including carbazoles. Herein, we discuss the construction of carbazole ring systems using RCM and the application of RCM based methods in the preparation of other indole-fused heterocycles. The application of these methods in the synthesis of carbazole alkaloids and bioactive indole-fused natural products has been discussed to highlight the importance of RCM in total synthesis.
Collapse
Affiliation(s)
- Tirtha Mandal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India.
| | - Jyotirmayee Dash
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India.
| |
Collapse
|
8
|
Alavi S, Lin JB, Grover HK. Copper-Catalyzed Annulation of Indolyl α-Diazocarbonyl Compounds Leads to Structurally Rearranged Carbazoles. Org Lett 2021; 23:5559-5564. [PMID: 34197126 DOI: 10.1021/acs.orglett.1c01965] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Indolyl α-diazocarbonyl compounds have proven to be effective starting materials for the construction of various 2,3-ring fused indole frameworks. Activation of the diazo functional group under metal catalysis generates a spiro-cyclic indolenine-type intermediate which rearranges to provide two distinct carbazoles upon oxidation. The current study investigates the effects of the catalyst as well as the substituents on the migratory group involved in controlling the selectivity of the rearrangement.
Collapse
Affiliation(s)
- Sima Alavi
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X7, Canada
| | - Jian-Bin Lin
- C-CART, CREAIT Network, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X7, Canada
| | - Huck K Grover
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X7, Canada
| |
Collapse
|
9
|
Abo-Salem HM, Abd El Salam HA, Abdel-Aziem AM, Abdel-Aziz MS, El-Sawy ER. Synthesis, Molecular Docking, and Biofilm Formation Inhibitory Activity of Bis(Indolyl)Pyridines Analogues of the Marine Alkaloid Nortopsentin. Molecules 2021; 26:4112. [PMID: 34299385 PMCID: PMC8304590 DOI: 10.3390/molecules26144112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022] Open
Abstract
An efficient and simple protocol for the synthesis of a new class of diverse bis(indolyl)pyridines analogues of the marine alkaloid nortopsentin has been reported. A one-pot four-component condensation of 3-cyanocarbomethylindole, various aldehyde, 3-acetylindole, and ammonium acetate in glacial acetic acid led to the formation of 2,6-bis(1H-indol-3-yl)-4-(substituted-phenyl)pyridine-5-carbonitriles. Additionally, 2,6-bis(1H-indol-3-yl)-4-(benzofuran) pyridine-5-carbonitriles were prepared via a one-pot four-component condensation of 3-cyanocarbomethylindole, various N-substituted-indole-3-aldehydes, 2-acetylbenzofuran, and ammonium acetate. The synthesized compounds were evaluated for their ability to inhibit biofilm formation against the Gram-positive bacterial reference strains Staphylococcus aureus ATCC 6538 and the Gram-negative strain Escherichia coli ATCC 25922. Some of the new compounds showed a marked selectivity against the Gram-positive and Gram-negative strains. Remarkably, five compounds 4b, 7a, 7c, 7d and 8e demonstrated good antibiofilm formation against S. aureus and E. coli. On the other hand, the release of reducing sugars and proteins from the treated bacterial strains over the untreated strains was considered to explain the disruption effect of the selected compound on the contact cells of S. aureus and E. coli. Out of all studied compounds, the binding energies and binding mode of bis-indole derivatives 7c and 7d were theoretically the best thymidylate kinase, DNA gyrase B and DNA topoisomerase IV subunit B inhibitors.
Collapse
Affiliation(s)
- Heba M. Abo-Salem
- Chemistry of Natural Compounds Department, National Research Centre, Dokki, Giza 12622, Egypt;
| | | | - Anhar M. Abdel-Aziem
- Chemistry Department, Faculty of Science (Girl’s Branch), Al-Azhar University, Cairo 11284, Egypt;
| | - Mohamed S. Abdel-Aziz
- Microbial Chemistry Department, Genetic Engineering and biotechnology Division, National Research Centre, Dokki, Giza 12622, Egypt;
| | - Eslam Reda El-Sawy
- Chemistry of Natural Compounds Department, National Research Centre, Dokki, Giza 12622, Egypt;
| |
Collapse
|
10
|
Cao D, Chen G, Chen D, Xia Z, Li Z, Wang Y, Xu D, Yang J. Synthesis of 4-Hydroxycarbazole Derivatives by Benzannulation of 3-Nitroindoles with Alkylidene Azlactones. ACS OMEGA 2021; 6:16969-16979. [PMID: 34250355 PMCID: PMC8264937 DOI: 10.1021/acsomega.1c01992] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/14/2021] [Indexed: 05/05/2023]
Abstract
A general synthesis of 4-hydroxylcarbazoles by domino vinylogous conjugate addition/cyclization/elimination/aromatization of easily prepared 3-nitroindoles with alkylidene azlactones under mild and transition-metal-free conditions has been developed. This method was also applicable to other nitrosubstituted benzofused heterocycles such as 3-nitrobenzothiophene, 2-nitrobenzothiophene, and 2-nitrobenzofuran. The valuable tetracyclic carbazole derivatives, such as 6H-oxazolo[4,5-c]carbazole and 3,6-dihydro-2H-oxazolo[4,5-c]carbazol-2-one, were readily prepared from the product, demonstrating synthetic utility of this method.
Collapse
|
11
|
Jiang Z, Zhou J, Zhu H, Liu H, Zhou Y. Rh(III)-Catalyzed [5 + 1] Annulation of Indole-enaminones with Diazo Compounds To Form Highly Functionalized Carbazoles. Org Lett 2021; 23:4406-4410. [PMID: 34018745 DOI: 10.1021/acs.orglett.1c01341] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A novel Rh(III)-catalyzed C-H activation/annulation cascade of indole-enaminones with diazo compounds was reported to construct diversely functionalized carbazole frameworks. The most notable characteristic is that this transformation could smoothly furnish a novel [5 + 1] cyclization product with good to excellent yields (up to 95%), accompanied by the thorough removal of acetyl and N,N-dimethyl groups of two substrates from the target products, rather than the normally expected [4 + 2] cyclization products.
Collapse
Affiliation(s)
- Zhidong Jiang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianhui Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Haoran Zhu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Yu Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| |
Collapse
|
12
|
Neto JSS, Zeni G. Recent Developments in the Cyclization of Alkynes and Nitrogen Compounds for the Synthesis of Indole Derivatives. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jose S. S. Neto
- Departamento de Química Universidade Federal de Santa Catarina Florianópolis Santa Catarina 88040-900 Brazil
| | - Gilson Zeni
- Department of Biochemistry and Molecular Biology Laboratório de Síntese Reatividade Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE Universidade Federal de Santa Maria Santa Maria Rio Grande do Sul 97105-900 Brazil
| |
Collapse
|
13
|
Mei R, Yang C, Xiong F, Mao M, Li H, Sun J, Zou L, Ma W, Ackermann L. Access to 10‐Phenanthrenols
via
Electrochemical C−H/C−H Arylation. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001431] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ruhuai Mei
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics Chengdu University Chengdu 610052 People's Republic of China
| | - Chenrui Yang
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Feng Xiong
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Meihua Mao
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Hongmei Li
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Junmei Sun
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Liang Zou
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics Chengdu University Chengdu 610052 People's Republic of China
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Tammannstraße 2 37077 Göttingen Germany
| |
Collapse
|
14
|
Banerjee A, Kundu S, Bhattacharyya A, Sahu S, Maji MS. Benzannulation strategies for the synthesis of carbazoles, indolocarbazoles, benzocarbazoles, and carbolines. Org Chem Front 2021. [DOI: 10.1039/d1qo00092f] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review presents a critical and authoritative analysis of several exciting benzannulation approaches developed in the past decade for the construction of carbazoles, indolocarbazoles, benzocarbazoles, and carbolines.
Collapse
Affiliation(s)
- Ankush Banerjee
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Samrat Kundu
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Arya Bhattacharyya
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Samrat Sahu
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Modhu Sudan Maji
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| |
Collapse
|
15
|
Guo JD, Yang XL, Chen B, Tung CH, Wu LZ. Photoredox/Cobalt-Catalyzed C(sp3)–H Bond Functionalization toward Phenanthrene Skeletons with Hydrogen Evolution. Org Lett 2020; 22:9627-9632. [DOI: 10.1021/acs.orglett.0c03665] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jia-Dong Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiu-Long Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| |
Collapse
|
16
|
Talukdar R. Rapid access to 3-acyl indoles using ethyl acetate/triflic acid couple as the acylium donor and Cu(OAc) 2 catalysed aerial oxidation of indole benzoins. Org Biomol Chem 2020; 18:8876-8880. [PMID: 33103169 DOI: 10.1039/d0ob01977a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Esters are potential acyl donors but are relatively unexplored for that purpose. A facile installation of acyl groups at the C-3 position of indoles under triflic acid catalysed conditions with easily available and cheap esters as new acylating agents is described herein. Furthermore, heterocycles like N-protected pyrrole, furan and thiophene were also suitable substrates for similar C-2 acylation. Analogous C-3 benzoylated products of indole were obtained, albeit in lower yields, by using methyl benzoate as a benzoyl donor. The benzoylated products were synthesised in much better yields via a copper(ii) catalysed aerial oxidation of indole containing benzoins.
Collapse
Affiliation(s)
- Ranadeep Talukdar
- Molecular Synthesis and Drug Discovery Laboratory, Centre of Biomedical Research, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow-226014, India.
| |
Collapse
|
17
|
Liu X, Du D, Li S, Wang X, Xu C, Wang M. Defluorinative Ring‐Opening Indolylation of Siloxydifluorocyclopropanes: Controlled Synthesis of α‐Fluoro‐β‐Indolyl‐Propanones for Carbazole Construction. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000865] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaowei Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University Changchun 130024 People's Republic of China
| | - Dongxu Du
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University Changchun 130024 People's Republic of China
| | - Shuting Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University Changchun 130024 People's Republic of China
| | - Xin Wang
- First Hospital of Bethune Jilin University Changchun 130021 People's Republic of China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University Changchun 130024 People's Republic of China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University Changchun 130024 People's Republic of China
| |
Collapse
|
18
|
Copper(II)-catalyzed decarboxylative cyclization for accessing biologically relevant 3-(2-furanyl) Indoles via 3-cyanoacetyl indoles and cinnamic acids. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
19
|
Yang XL, Guo JD, Xiao H, Feng K, Chen B, Tung CH, Wu LZ. Photoredox Catalysis of Aromatic β-Ketoesters for in Situ Production of Transient and Persistent Radicals for Organic Transformation. Angew Chem Int Ed Engl 2020; 59:5365-5370. [PMID: 31957949 DOI: 10.1002/anie.201916423] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Indexed: 12/20/2022]
Abstract
Radical formation is the initial step for conventional radical chemistry. Reported herein is a unified strategy to generate radicals in situ from aromatic β-ketoesters by using a photocatalyst. Under visible-light irradiation, a small amount of photocatalyst fac-Ir(ppy)3 generates a transient α-carbonyl radical and persistent ketyl radical in situ. In contrast to the well-established approaches, neither stoichiometric external oxidant nor reductant is required for this reaction. The synthetic utility is demonstrated by pinacol coupling of ketyl radicals and benzannulation of α-carbonyl radicals with alkynes to give a series of highly substituted 1-naphthols in good to excellent yields. The readily available photocatalyst, mild reaction conditions, broad substrate scope, and high functional-group tolerance make this reaction a useful synthetic tool.
Collapse
Affiliation(s)
- Xiu-Long Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jia-Dong Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hongyan Xiao
- Key Laboratory of Bio-Inspired Materials and Interface Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Ke Feng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
20
|
Yang X, Guo J, Xiao H, Feng K, Chen B, Tung C, Wu L. Photoredox Catalysis of Aromatic β‐Ketoesters for in Situ Production of Transient and Persistent Radicals for Organic Transformation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916423] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiu‐Long Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Jia‐Dong Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Hongyan Xiao
- Key Laboratory of Bio-Inspired Materials and Interface SciencesTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Ke Feng
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Chen‐Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Li‐Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 China
| |
Collapse
|
21
|
Liu X, Sheng H, Zhou Y, Song Q. Palladium-catalyzed C–H bond activation for the assembly of N-aryl carbazoles with aromatic amines as nitrogen sources. Chem Commun (Camb) 2020; 56:1665-1668. [DOI: 10.1039/c9cc09493h] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient and efficient palladium-catalyzed C–H bond activation for the assembly of N-aryl carbazole is reported, in which two C–N bonds were formed under one set of conditions.
Collapse
Affiliation(s)
- Xiaobing Liu
- Institute of Next Generation Matter Transformation
- College of Materials Science & Engineering and College of Chemical Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Heyun Sheng
- Institute of Next Generation Matter Transformation
- College of Materials Science & Engineering and College of Chemical Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Yao Zhou
- College of Chemistry and Chemical Engineering
- Hubei Normal University
- Huangshi 435002
- P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Materials Science & Engineering and College of Chemical Engineering at Huaqiao University
- Xiamen
- P. R. China
- Fujian University Key Laboratory of Molecule Synthesis and Function Discovery
| |
Collapse
|
22
|
Saha S, Maji MS. One-pot access to tetrahydrobenzo[c]carbazoles from simple ketones by using O2 as an oxidant. Org Biomol Chem 2020; 18:1765-1768. [DOI: 10.1039/c9ob02751c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An effective and operationally simple one-pot Brønsted acid catalyzed cascade method is demonstrated for the synthesis of diversely functionalized carbazole frameworks starting from protecting group free 2-alkenyl indoles.
Collapse
Affiliation(s)
- Shuvendu Saha
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Modhu Sudan Maji
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| |
Collapse
|
23
|
Martínez-Lara F, Suárez A, Suárez-Pantiga S, Tapia MJ, Sanz R. Straight access to highly fluorescent angular indolocarbazoles via merging Au- and Mo-catalysis. Org Chem Front 2020. [DOI: 10.1039/d0qo00405g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A straightforward and efficient synthesis of the two less explored types of indolocarbazoles has been developed giving rise to highly fluorescent compounds with fluorescence quantum yields around 0.7.
Collapse
Affiliation(s)
| | - Anisley Suárez
- Departamento de Química
- Facultad de Ciencias
- Universidad de Burgos
- 09001-Burgos
- Spain
| | | | - M. José Tapia
- Departamento de Química
- Facultad de Ciencias
- Universidad de Burgos
- 09001-Burgos
- Spain
| | - Roberto Sanz
- Departamento de Química
- Facultad de Ciencias
- Universidad de Burgos
- 09001-Burgos
- Spain
| |
Collapse
|
24
|
Abdel-Aziem A, El-Sawy ER, Kirsch G. Convenient synthesis of linear 2 H,6 H-pyrano[3,2- g] chromenes from natural occurring compound; visnagin. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1671455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Anhar Abdel-Aziem
- Faculty of Science (Girl’s Branch), Département of Chemistry, Faculty of Science (Girl’s Branch), Al-Azhar Université, Cairo, Egypt
| | - Eslam R. El-Sawy
- Chemistry of Natural Compounds Département, National Research Centre, Dokki-Giza, Egypt
- Laboratoire Lorrain de Chimie Moléculaire (L.2.C.M.), Université de Lorraine, Lorraine, France
| | - Gilbert Kirsch
- Laboratoire Lorrain de Chimie Moléculaire (L.2.C.M.), Université de Lorraine, Lorraine, France
| |
Collapse
|
25
|
Wang Z, Yu Z, Yao Y, Zhang Y, Xiao X, Wang B. A practical synthesis of β-carbolines by tetra-n-butylammonium bromide (TBAB)-mediated cycloaromatization reaction of aldehydes with tryptophan derivatives. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
26
|
Huang W, Chen S, Yang J, El‐Harairy A, Wang X, Li M, Gu Y. Modular Synthesis of Bicyclic and Tricyclic (Aza‐) Arenes from Nucleophilic (Aza‐)Arenes with Electrophilic Side Arms via [4+2] Annulation Reactions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900425] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Wenbo Huang
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Shaomin Chen
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Jian Yang
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Ahmed El‐Harairy
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Xin Wang
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Minghao Li
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Yanlong Gu
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, LanzhouInstitute of Chemical Physics Lanzhou 730000 People's Republic of China
| |
Collapse
|
27
|
Ni P, Tan J, Zhao W, Huang H, Xiao F, Deng GJ. Metal-Free Double Csp2–H Bond Functionalization: Strategy for Synthesizing Benzo[a]carbazoles from 2-Arylindoles and Acetophenones/Alkynes. Org Lett 2019; 21:3687-3691. [DOI: 10.1021/acs.orglett.9b01138] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Penghui Ni
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Jing Tan
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Wenqi Zhao
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Fuhong Xiao
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| |
Collapse
|
28
|
Lvov AG, Kavun AM, Kachala VV, Lyssenko KA, Shirinian VZ. Photorearrangement of dihetarylethenes as a tool for the benzannulation of heterocycles. Org Biomol Chem 2019; 17:4990-5000. [PMID: 30964495 DOI: 10.1039/c9ob00690g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A general strategy for the preparative benzannulation of aromatic heterocycles via photocyclization of 1,2-dihetarylethenes was proposed for the first time. The strategy includes two steps, namely, modular assembly of dihetarylethenes from widely available 3-hetarylacetic acids and 2-bromo-1-hetarylethanones, and subsequent preparative photorearrangement (using a UV lamp at 365 nm as the light source). This approach is efficient for the annulation of a wide range of heterocycles and provides C-, N-, O- or S-substituents in the benzoheterocycles obtained. The photochemical step is a metal-, acid-, and oxidant-free reaction, which requires non-inert conditions, and can be easily monitored by NMR spectroscopy. Applicability of the proposed strategy was tested in the synthesis of a wide range of substituted carbazoles and benzo[b]thiophenes as well as on a gram-scale benzannulation of 3-indoleacetic acid. Our study disclosed how to overcome two notable obstacles to the successful photorearrangement of dihetarylethenes: undesired reactions associated with photogenerated singlet oxygen, and the instability of desired products. The first problem was successfully solved by the addition of DABCO, while development of an in situ alkylation protocol to trap unstable photoproducts allowed us to overcome the second issue.
Collapse
Affiliation(s)
- Andrey G Lvov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky prospect, Moscow, Russian Federation.
| | - Alexey M Kavun
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky prospect, Moscow, Russian Federation. and Higher Chemical College, D. I. Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, Moscow, Russian Federation
| | - Vadim V Kachala
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky prospect, Moscow, Russian Federation.
| | - Konstantin A Lyssenko
- Department of Chemistry, Lomonosov Moscow State University, 119992 Moscow, Russian Federation
| | - Valerii Z Shirinian
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky prospect, Moscow, Russian Federation.
| |
Collapse
|
29
|
Aggarwal T, Sushmita S, Verma AK. Recent advances in the synthesis of carbazoles from indoles. Org Biomol Chem 2019; 17:8330-8342. [DOI: 10.1039/c9ob01381d] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Synthesis of carbazoles using indoles as precursors through CH activation/annulation.
Collapse
Affiliation(s)
- Trapti Aggarwal
- Synthetic Organic Chemistry Laboratory
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Sushmita Sushmita
- Synthetic Organic Chemistry Laboratory
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry Laboratory
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| |
Collapse
|
30
|
Saha S, Banerjee A, Maji MS. Brønsted Acid Catalyzed One-Pot Benzannulation of 2-Alkenylindoles under Aerial Oxidation: A Route to Carbazoles and Indolo[2,3-a]carbazole Alkaloids. Org Lett 2018; 20:6920-6924. [PMID: 30358409 DOI: 10.1021/acs.orglett.8b03063] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shuvendu Saha
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Ankush Banerjee
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Modhu Sudan Maji
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| |
Collapse
|
31
|
Kong L, Zheng Z, Tang R, Wang M, Sun Y, Li Y. Palladium-Catalyzed Dual C(sp2)–H Functionalization of Indole-2-carboxamides Involving a 1,2-Acyl Migration: A Synthesis of Indolo[3,2-c]quinolinones. Org Lett 2018; 20:5696-5699. [DOI: 10.1021/acs.orglett.8b02419] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lingkai Kong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
- School of Chemistry and Chemical Engineering, Linyi University, Shuangling Road, Linyi, Shandong 276000, China
| | - Zhong Zheng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Rong Tang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Mengdan Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Yue Sun
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| |
Collapse
|
32
|
Mandal T, Chakraborti G, Karmakar S, Dash J. Divergent and Orthogonal Approach to Carbazoles and Pyridoindoles from Oxindoles via Indole Intermediates. Org Lett 2018; 20:4759-4763. [DOI: 10.1021/acs.orglett.8b01827] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tirtha Mandal
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Gargi Chakraborti
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Shilpi Karmakar
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Jyotirmayee Dash
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| |
Collapse
|
33
|
Jiang YT, Yu ZZ, Zhang YK, Wang B. N-Bromosuccinimide-Induced C-H Bond Functionalization: An Intramolecular Cycloaromatization of Electron Withdrawing Group Substituted 1-Biphenyl-2-ylethanone for the Synthesis of 10-Phenanthrenol. Org Lett 2018; 20:3728-3731. [PMID: 29923730 DOI: 10.1021/acs.orglett.8b01160] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An NBS-induced intramolecular cycloaromatization for the synthesis of 10-phenanthrenols from electron-withdrawing group substituted 1-biphenyl-2-ylethanones is described. The in situ generated bromide was designed to act as an initiator for the radical C-H bond activation. An oxidative cross-dehydrogenative coupling reaction of a highly active C-H bond with an inert C-H bond readily occurs under mild conditions without the need for transition metals or strong oxidants.
Collapse
Affiliation(s)
- Ya-Ting Jiang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin 300353 , People's Republic of China
| | - Zhen-Zhen Yu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin 300353 , People's Republic of China
| | - Ya-Kai Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin 300353 , People's Republic of China
| | - Bin Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Haihe Education Park, 38 Tongyan Road , Tianjin 300353 , People's Republic of China
| |
Collapse
|
34
|
Wang B, Wong HNC. Bromine-Mediated Cross-Dehydrogenative Coupling (CDC) Reactions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20170393] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Bin Wang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, P. R. China
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, P. R. China
| | - Henry N. C. Wong
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, P. R. China
| |
Collapse
|
35
|
Lu T, Jiang YT, Ma FP, Tang ZJ, Kuang L, Wang YX, Wang B. Bromide-Mediated C–H Bond Functionalization: Intermolecular Annulation of Phenylethanone Derivatives with Alkynes for the Synthesis of 1-Naphthols. Org Lett 2017; 19:6344-6347. [DOI: 10.1021/acs.orglett.7b03186] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tao Lu
- State Key Laboratory of Medicinal
Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of
Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan
Road, Tianjin 300353, People’s Republic of China
| | - Ya-Ting Jiang
- State Key Laboratory of Medicinal
Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of
Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan
Road, Tianjin 300353, People’s Republic of China
| | - Feng-Ping Ma
- State Key Laboratory of Medicinal
Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of
Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan
Road, Tianjin 300353, People’s Republic of China
| | - Zi-Jing Tang
- State Key Laboratory of Medicinal
Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of
Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan
Road, Tianjin 300353, People’s Republic of China
| | - Liu Kuang
- State Key Laboratory of Medicinal
Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of
Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan
Road, Tianjin 300353, People’s Republic of China
| | - Yu-Xuan Wang
- State Key Laboratory of Medicinal
Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of
Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan
Road, Tianjin 300353, People’s Republic of China
| | - Bin Wang
- State Key Laboratory of Medicinal
Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of
Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan
Road, Tianjin 300353, People’s Republic of China
| |
Collapse
|