1
|
Chen Z, Xue F, Feng W, Zhang Z, Wang B, Zhang Y, Jin W, Xia Y, Liu C. Visible-Light-Promoted and Electron Donor-Acceptor Complex-Driven Double Csp 2-H Bond Functionalization of 2-Arylindoles: A Strategy for the Synthesis of Benzo[ a]carbazoles. Org Lett 2024; 26:7614-7619. [PMID: 39235141 DOI: 10.1021/acs.orglett.4c02723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2024]
Abstract
A green and efficient protocol for the preparation of benzo[a]carbazoles via visible-light-promoted and electron donor-acceptor (EDA) complex-driven intermolecular cyclization of 2-arylindoles with Z-α-bromocinnamaldehydes in the absence of external photocatalysts, transition metals, and oxidants was reported. This new approach demonstrates an intermolecular cyclization model using indole derivatives as electron donors under visible light. Mechanistic investigations have showed that 2-arylindoles with Z-α-bromocinnamaldehydes form EDA complexes, which undergo sequential single-electron transfer, radical coupling, 6π-electrocyclization, and dehydroaromatization to generate benzo[a]carbazoles under visible light irradiation. The current photochemical method features readily accessible starting materials, mild conditions, simple operation, and a broad substrate scope.
Collapse
Affiliation(s)
- Ziren Chen
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Fei Xue
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Wanting Feng
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Zuozhi Zhang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Bin Wang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Yonghong Zhang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Weiwei Jin
- Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, P. R. China
| | - Yu Xia
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Chenjiang Liu
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| |
Collapse
|
2
|
Arandhara PJ, Chutia A, Biswas S, Saikia AK. A Lewis Acid-Catalyzed Cascade Synthesis of Fused N-Heterocycles from 2-Alkynylanilines and 2-Formylbenzonitriles: Unveiling Iminoisoindoloindolone and Its Derivatives. J Org Chem 2024; 89:12128-12142. [PMID: 39172136 DOI: 10.1021/acs.joc.4c01038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
We herein reveal a streamlined synthesis of structurally fused 6-iminoisoindoloindolones via a meticulously orchestrated cascade reaction. This process seamlessly intertwines 2-alkynylaniline and 2-formylbenzonitrile under the catalytic influence of TMSOTf, giving rise to these compounds in remarkable yields that stand as a testament to the efficiency of our approach. Moreover, the versatility of this synthetic strategy extends far beyond mere synthesis, offering a gateway to the creation of both isoindoloindolone and unprecedented diphenylbenzopyrrolizinoisoquinolinone derivatives, thereby opening new horizons in the realm of chemical innovation. Furthermore, the strategic elegance of this synthetic methodology is underscored by its potential for scale-up production and applicability across diverse chemical contexts.
Collapse
Affiliation(s)
- Pallav Jyoti Arandhara
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Archana Chutia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Subhamoy Biswas
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anil K Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| |
Collapse
|
3
|
Rai S, Patil BE, Kumari P, Mainkar PS, Prasanthkumar S, Adepu R, Chandrasekhar S. Practical Access to Fused Carbazoles via Oxidative Benzannulation and their Photophysical Properties. J Org Chem 2024; 89:9586-9596. [PMID: 38899857 DOI: 10.1021/acs.joc.4c01093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
An aryne annulation strategy for the synthesis of fused carbazoles is developed using indolyl β-ketonitrile in a cascade manner. The reaction sequence involves aryne-mediated [2 + 2] cycloaddition cleavage and intramolecular Michael addition, followed by oxidation under transition-metal-free reaction conditions. Subsequently, conversion of benzo[b]carbazole-6-carbonitrile to carbazole quinone is observed upon prolongation of the reaction time. Furthermore, these materials exhibit high quantum efficiency, which promotes the light-emitting diode applications.
Collapse
Affiliation(s)
- Shweta Rai
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Basavarajagouda E Patil
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Priti Kumari
- Department of Polymers and Functional Materials, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Prathama S Mainkar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Seelam Prasanthkumar
- Department of Polymers and Functional Materials, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Raju Adepu
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Srivari Chandrasekhar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| |
Collapse
|
4
|
Xiang G, Wang Y, Lu L, Zhang X, Huang Q. Diversity-Oriented Synthesis of Indole-Fused Polycyclic Scaffolds via Rhodium-Catalyzed NH-Indole-Directed C-H Coupling of 2-Phenyl-1 H-indoles with Propargylic Alcohol Derivatives. J Org Chem 2024; 89:5589-5605. [PMID: 38576240 DOI: 10.1021/acs.joc.4c00102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Diversity-oriented synthesis strategy for the efficient assembly of indole-fused polycyclic scaffolds via rhodium-catalyzed NH-indole-directed C-H coupling with propargylic alcohol derivatives in a regioselective manner was developed. Five 2-phenyl-1H-indole-embedded core skeletons were synthesized. In particular, three different indole-fused exo-olefin-containing polycycles were realized, which may be manipulated for further chemistry.
Collapse
Affiliation(s)
- Guijiao Xiang
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Yanqiao Wang
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Leipeng Lu
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Xiaofeng Zhang
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Qiufeng Huang
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| |
Collapse
|
5
|
Sankara CS, Namboothiri INN. Hauser-Kraus Annulation Initiated Multi-Cascade Reactions for Facile Access to Functionalized and Fused Oxazepines, Carbazoles and Phenanthridinediones. Chemistry 2024; 30:e202303517. [PMID: 37946675 DOI: 10.1002/chem.202303517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 11/12/2023]
Abstract
The Hauser-Kraus (H-K) annulation of N-unsubstituted 3-olefinic oxindoles with 3-nucleophilic phthalides triggers a cascade of ring expansion and ring contraction reactions through several regioselective steps in one pot. While oxazepines were isolated in the presence of stoichiometric amounts of base at room temperature, carbazoles and phenanthridinediones were the products in the presence of excess base and microwave irradiation. Mechanistic studies guided by stepwise reactions and control experiments revealed that the isolable oxazepine intermediate, formed via ring expansion of the H-K adduct, is the key precursor to carbazole and phenanthridinedione via decarboxylative regioselective cyclizations.
Collapse
|
6
|
Sarmah M, Das DJ, Dutta D, Baishya R, Gogoi P. A Versatile Pd-Catalyzed Alkyne Annulation Process for Benzo[ a]carbazoles and their Anticancer Analogues. ACS OMEGA 2022; 7:47680-47700. [PMID: 36591211 PMCID: PMC9798400 DOI: 10.1021/acsomega.2c04755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/10/2022] [Indexed: 05/04/2023]
Abstract
A Pd-catalyzed, simple, and divergent approach for the direct synthesis of benzo[a]carbazoles from internal alkynes and N-tosyl-iodoindoles has been demonstrated. This methodology highlights the influences of reaction media and temperature for the synthesis of either N-protected or N-deprotected benzo[a]carbazoles. This cascade strategy provides a series of electronically different benzo[a]carbazoles with good yields. The synthesized benzo[a]carbazoles were evaluated for in vitro anticancer activity against human lung cancer A549 cells and human breast cancer MDA-MB-231 cells. Notably, two of the representative analogues displayed potent anticancer activity against both cancer cell lines.
Collapse
Affiliation(s)
- Manashi Sarmah
- Applied
Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
| | - Deep Jyoti Das
- Natural
Product Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Dhiraj Dutta
- Applied
Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Rinku Baishya
- Natural
Product Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Pranjal Gogoi
- Applied
Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| |
Collapse
|
7
|
Lu P, Zhuang W, Lu L, Liu A, Chen Y, Wu C, Zhang X, Huang Q. Chemodivergent Synthesis of Indeno[1,2- b]indoles and Isoindolo[2,1- a]indoles via Mn(III)-Mediated or Electrochemical Intramolecular Radical Cross-Dehydrogenative Coupling. J Org Chem 2022; 87:10967-10981. [PMID: 35901234 DOI: 10.1021/acs.joc.2c01238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Chemodivergent synthesis of indeno[1,2-b]indoles and isoindolo[2,1-a]indoles from the same starting materials involving radical cross-dehydrogenative couplings have been developed. Mn(OAc)3·2H2O selectively promoted an intramolecular radical C-H/C-H dehydrogenative coupling reaction to provide indeno[1,2-b]indoles, while an intramolecular radical C-H/N-H dehydrogenative coupling reaction could proceed via electrochemistry to deliver isoindolo[2,1-a]indoles. Plausible mechanisms of the chemodivergent reactions were proposed.
Collapse
Affiliation(s)
- Piao Lu
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Weihui Zhuang
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Leipeng Lu
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Anyi Liu
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Yixi Chen
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Chenmeng Wu
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Xiaofeng Zhang
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Qiufeng Huang
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| |
Collapse
|
8
|
Pan G, Lu L, Zhuang W, Huang Q. Synthesis of Indole-Fused Six-, Seven-, or Eight-Membered N,O-Heterocycles via Rhodium-Catalyzed NH-Indole-Directed C-H Acetoxylation/Hydrolysis/Annulation. J Org Chem 2021; 86:16753-16763. [PMID: 34756052 DOI: 10.1021/acs.joc.1c01982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report herein the facile synthesis of indole-fused six-, seven-, or eight-membered N,O-heterocycles through rhodium-catalyzed C-H acetoxylation/hydrolysis/annulation. The notable features of this method include C-H acetoxylation using NH-indole as the intrinsic directing group, high functional group compatibility, and construction of indole-fused medium-sized rings.
Collapse
Affiliation(s)
- Guoshuai Pan
- Fujian Key Laboratory of Polymer Materials, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Leipeng Lu
- Fujian Key Laboratory of Polymer Materials, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Weihui Zhuang
- Fujian Key Laboratory of Polymer Materials, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Qiufeng Huang
- Fujian Key Laboratory of Polymer Materials, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China.,Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fuzhou, Fujian 35007, P.R. China
| |
Collapse
|
9
|
Zheng K, Zhou E, Zhang L, Zhang L, Yu W, Xu H, Shen C. Catalyst controlled remote C H activation of 8-aminoquinolines with NFSI for C N versus C F coupling. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2021.106336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
|
10
|
Shelke YG, Hande PE, Gharpure SJ. Recent advances in the synthesis of pyrrolo[1,2- a]indoles and their derivatives. Org Biomol Chem 2021; 19:7544-7574. [PMID: 34524330 DOI: 10.1039/d1ob01103k] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The pyrrolo[1,2-a]indole unit is a privileged heterocycle found in numerous natural products and has been shown to exhibit diverse pharmacological properties. Thus, recent years have witnessed immense interest from the synthesis community on the synthesis of this scaffold. In light of the ever-increasing demand for pyrrolo[1,2-a]indoles in drug discovery, this review provides an overview of recent synthesis methods for the preparation of pyrrolo[1,2-a]indoles and their derivatives. The mechanistic pathway and stereo-electronic factors affecting the yield and selectivity of the product are briefly explained. Furthermore, we have attempted to demonstrate the utility of the developed methods in the synthesis of bioactive molecules and natural products, wherever offered.
Collapse
Affiliation(s)
- Yogesh G Shelke
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Pankaj E Hande
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Santosh J Gharpure
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| |
Collapse
|
11
|
Rhodium-Catalyzed Oxidative Annulation of 2- or 7-Arylindoles with Alkenes/Alkynes Using Molecular Oxygen as the Sole Oxidant Enabled by Quaternary Ammonium Salt. Molecules 2021; 26:molecules26175329. [PMID: 34500762 PMCID: PMC8433977 DOI: 10.3390/molecules26175329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/29/2021] [Accepted: 08/29/2021] [Indexed: 11/16/2022] Open
Abstract
Developing an efficient catalytic system using molecular oxygen as the oxidant for rhodium-catalyzed cross-dehydrogenative coupling remains highly desirable. Herein, rhodium-catalyzed oxidative annulation of 2- or 7-phenyl-1H-indoles with alkenes or alkynes to assemble valuable 6H-isoindolo[2,1-a]indoles, pyrrolo[3,2,1-de]phenanthridines, or indolo[2,1-a]isoquinolines using the atmospheric pressure of air as the sole oxidant enabled by quaternary ammonium salt has been accomplished. Mechanistic studies provided evidence for the fast intramolecular aza-Michael reaction and aerobic reoxidation of Rh(I)/Rh(III), facilitated by the addition of quaternary ammonium salt.
Collapse
|
12
|
Zhang F, Zhu X, Luo B, Wang C. Rh(iii)-catalyzed regioselective C-H activation dialkenylation/annulation cascade for rapid access to 6 H-isoindolo[2,1- a]indole. RSC Adv 2021; 11:25194-25198. [PMID: 35478900 PMCID: PMC9037025 DOI: 10.1039/d1ra02998c] [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: 04/17/2021] [Accepted: 07/13/2021] [Indexed: 11/21/2022] Open
Abstract
6H-isoindolo[2,1-a]indoles were accessed via a Rh(iii)-catalyzed N-H free indole directed C-H activation dialkenylation/annulation cascade in moderate to excellent yields. This protocol also features: reaction procedures that are insensitive to air and moisture, excellent regioselectivity and good functional group tolerance.
Collapse
Affiliation(s)
- Fangming Zhang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University Guangzhou 511443 China
| | - Xin Zhu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University Guangzhou 511443 China
| | - Bo Luo
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University Guangzhou 511443 China
| | - Chengming Wang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University Guangzhou 511443 China
| |
Collapse
|
13
|
Mondal A, Sharma R, Pal D, Srimani D. Recent Progress in the Synthesis of Heterocycles through Base Metal‐Catalyzed Acceptorless Dehydrogenative and Borrowing Hydrogen Approach. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100517] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Avijit Mondal
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Rahul Sharma
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Debjyoti Pal
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Dipankar Srimani
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| |
Collapse
|
14
|
Hao T, Huang L, Wei Y, Shi M. Copper-Catalyzed Synthesis of Indolyl Benzo[ b]carbazoles and Their Photoluminescence Property. Org Lett 2021; 23:5133-5137. [PMID: 34143628 DOI: 10.1021/acs.orglett.1c01659] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A copper-catalyzed cascade cyclization of dihydroisobenzofurans with indoles for the rapid construction of indoly benzo[b]carbazoles has been reported, providing the desired products in moderate to good yields under mild conditions along with a broad substrate scope and good functional group tolerance. The photoluminescence property of these indoly benzo[b]carbazoles has also been investigated.
Collapse
Affiliation(s)
- Tonggang Hao
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Science, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Long Huang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Science, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Science, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Science, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| |
Collapse
|
15
|
Kundu S, Banerjee A, Pal SC, Ghosh M, Maji MS. Cascade annulative π-extension for the rapid construction of carbazole based polyaromatic hydrocarbons. Chem Commun (Camb) 2021; 57:5762-5765. [PMID: 34008629 DOI: 10.1039/d1cc00668a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A Brønsted acid catalyzed cascade benzannulation strategy for the one-pot synthesis of densely populated poly-aryl benzo[a]carbazole architectures is disclosed from easily affordable fundamental commodities. The efficacy of this technique was further validated via the concise synthesis of structurally unique carbazole based poly-aromatic hydrocarbons. Furthermore, the photo-physical properties of the synthesized compounds are thoroughly investigated.
Collapse
Affiliation(s)
- Samrat Kundu
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, WB, India.
| | - Ankush Banerjee
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, WB, India.
| | - Shyam Chand Pal
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, WB, India.
| | - Meghna Ghosh
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, WB, India.
| | - Modhu Sudan Maji
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, WB, India.
| |
Collapse
|
16
|
Qin Y, Zhuang W, Guo X, Zhang X, Huang Q. Rhodium-catalyzed direct C H amination of 2-arylindoles and 7-arylindoles with free amines. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
17
|
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
|
18
|
Mahesha CK, Mandal SK, Sakhuja R. Indazolone‐Assisted Sequential
ortho
‐Alkenylation‐Oxidative Aza‐Michael Addition of 1‐Arylindazolone Using Acrylates Under Ru(II) Catalysis. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000239] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Sanjay K. Mandal
- Department of Chemical SciencesIndian Institute of Science Education and Research Mohali Sector 81, SAS Nagar, Manuali P.O., Mohali Punjab 140306 India
| | - Rajeev Sakhuja
- Department of ChemistryBirla Institute of Technology and Science, Pilani Rajasthan 333031 India
| |
Collapse
|
19
|
Liu Y, Yang Z, Chauvin R, Fu W, Yao Z, Wang L, Cui X. One-Pot Synthesis of Furo[3,4- c]indolo[2,1- a]isoquinolines through Rh(III)-Catalyzed Cascade Reactions of 2-Phenylindoles with 4-Hydroxy-2-alkynoates. Org Lett 2020; 22:5140-5144. [PMID: 32610929 DOI: 10.1021/acs.orglett.0c01744] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
An efficient and regioselective synthesis of fused polycyclic furo[3,4-c]indolo[2,1-a]isoquinolines through Rh(III)-catalyzed cascade C-H activation/annulation/lactonization of 2-arylindoles and 4-hydroxy-2-alkynoates has been developed. This cascade reaction displays high step economy and efficiency and tolerates various functional groups. The titled polycyclic furo[3,4-c]indolo[2,1-a]isoquinolines exhibit fluorescence emission.
Collapse
Affiliation(s)
- Yihao Liu
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Zi Yang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Remi Chauvin
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen, Fujian 361021, P. R. China.,LCC-CNRS, Université de Toulouse, UPS, 205 route de Narbonne, 31077 Toulouse, France
| | - Wei Fu
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Zhenyu Yao
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Lianhui Wang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Xiuling Cui
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| |
Collapse
|
20
|
Wen ZK, Wu XX, Bao WK, Xiao JJ, Chao JB. Palladium-Catalyzed Regioselective Coupling Cyclohexenone into Indoles: Atom-Economic Synthesis of β-Indolyl Cyclohexenones and Derivatization Applications. Org Lett 2020; 22:4898-4902. [PMID: 32515596 DOI: 10.1021/acs.orglett.0c01763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Herein, we report a palladium-catalyzed dehydrogenative cross-coupling of indoles with cyclic enones to give β-indolyl cyclic enones under mild and neutral reaction conditions. The key to the success is to explore a mild condition, which ensures the indole C-H activation and subsequent syn β-hydride elimination through rapid enolization isomerization of Pd(II)-enolate while suppressing other undesired side reactions. Synthetic utility has also been demonstrated in the flexible transformation of the coupling products to meta-phenols and benzo[a]carbazoles.
Collapse
Affiliation(s)
- Zhen-Kang Wen
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Xiao-Xue Wu
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Wen-Kai Bao
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Jing-Jing Xiao
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Jian-Bin Chao
- Scientific Instrument Center, Shanxi University, Taiyuan 030006, China
| |
Collapse
|
21
|
Yuan Y, Guo X, Zhang X, Li B, Huang Q. Access to 5H-benzo[a]carbazol-6-ols and benzo[6,7]cyclohepta[1,2-b]indol-6-ols via rhodium-catalyzed C–H activation/carbenoid insertion/aldol-type cyclization. Org Chem Front 2020. [DOI: 10.1039/d0qo00820f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The rhodium-catalyzed mono-ortho C–H activation/carbenoid insertion/aldol-type cyclization of 3-aldehyde-2-phenyl-1H-indoles with diazo compounds has been developed.
Collapse
Affiliation(s)
- Yumeng Yuan
- Fujian Key Laboratory of Polymer Materials
- College of Chemistry & Materials Science
- Fujian Normal University
- Fuzhou
- P.R. China
| | - Xiemin Guo
- Fujian Key Laboratory of Polymer Materials
- College of Chemistry & Materials Science
- Fujian Normal University
- Fuzhou
- P.R. China
| | - Xiaofeng Zhang
- Fujian Key Laboratory of Polymer Materials
- College of Chemistry & Materials Science
- Fujian Normal University
- Fuzhou
- P.R. China
| | - Buhong Li
- MOE Key Laboratory of Optoelectronic Science and Technology for Medicine
- Fujian Key Laboratory for Photonics Technology
- Fujian Normal University
- Fuzhou
- P. R. China
| | - Qiufeng Huang
- Fujian Key Laboratory of Polymer Materials
- College of Chemistry & Materials Science
- Fujian Normal University
- Fuzhou
- P.R. China
| |
Collapse
|