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Hauguel C, Pozzo J, Hamze A, Provot O. Recent Advances in Synthesis of Pyrrolo[3,2‐
b
]indole and Indolo[3,2‐
b
]indole Derivatives. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Camille Hauguel
- Université Paris-Saclay, CNRS, BioCIS 92290 Châtenay-Malabry France
| | - Jean‐Luc Pozzo
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR5255 351 cours Libération F-33405 Bordeaux France
| | - Abdallah Hamze
- Université Paris-Saclay, CNRS, BioCIS 92290 Châtenay-Malabry France
| | - Olivier Provot
- Université Paris-Saclay, CNRS, BioCIS 92290 Châtenay-Malabry France
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2
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Fujita T, Fukuda T, Suzuki N, Ichikawa J. Rapid Synthesis of Fused Polycyclic Heteroaromatics via Successive Vinylic/Aromatic C–F Bond Activation. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Takeshi Fujita
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Takuya Fukuda
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Naoto Suzuki
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Junji Ichikawa
- University of Tsukuba Department of Chemistry 1-1-1 Tennodai 305-8571 Tsukuba JAPAN
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3
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Paul D, John J. Recent Advances towards the Synthesis and Material Applications of Indoloindoles. Chem Asian J 2022; 17:e202200460. [PMID: 35652360 DOI: 10.1002/asia.202200460] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/31/2022] [Indexed: 11/06/2022]
Abstract
An important class of N -heteroacenes is indoloindoles which are air-stable, electron-rich and possesses many tuneable properties. Initially, indoloindoles were explored for potential biological applications but current interest is based on their performance as photovoltaic materials. With growing applications of indoloindoles across multiple facets as organic functional materials, the need for efficient methods to synthesize and functionalize indoloindoles has taken a centre stage. Over the years, synthetic routes leading to indoloindoles have evolved from multistep protocols to one-pot multicomponent synthesis. Present literature boasts of a variety of reports that employ metals such as Cu, Ru, Rh, Pd, or Au to mediate the reaction towards indoloindoles. As alternatives to such metal-mediated methods, researchers have also developed metal-free and catalyst-free conditions. Indoloindoles, which are fundamentally fused-indoles, are often synthesized by transforming indole derivatives but methods that employ anilines or arynes as the starting substrates are equally abundant. The present review highlights the rich diversity and versatility of recent literature for the synthesis of indolo[3,2- b ]indoles, indolo[2,3- b ]indoles, indolo[7,6- g ]indoles, and indolo[5,4- e ]indoles. This review discusses protocols that were explicitly designed to obtain the above-mentioned indoloindoles and also explores several other methods that can be adapted to access said heteroacenes. Available mechanistic details pertaining to novel transformations have been detailed for the readers. Various applications where indoloindoles function as organic light-emitting diodes, organic field-effect transistors, solar cells, etc. have also been delved into before concluding with an outlook on future research.
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Affiliation(s)
- Dipankar Paul
- NIIST-CSIR: National Institute for Interdisciplinary Science and Technology CSIR, Chemical Sciences and Technology, 695019, Thiruvananthapuram, INDIA
| | - Jubi John
- CSIR-National Institute for Interdisciplinary Science and Technology, Chemical Sciences and Technology, Industrial Estate P. O., Pappanamcode, 695019, Thiruvananthapuram, INDIA
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4
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Zhang J, Shi SQ, Hao WJ, Dong GY, Tu SJ, Jiang B. Tunable Electrocatalytic Annulations of o-Arylalkynylanilines: Green and Switchable Syntheses of Skeletally Diverse Indoles. J Org Chem 2021; 86:15886-15896. [PMID: 33534572 DOI: 10.1021/acs.joc.0c02898] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Tunable electrocatalytic annulation reactions of o-arylalkynylanilines have been established, leading to green and divergent syntheses of skeletally diverse indoles by adjusting the electrolytes and the solvents. The presence of ammonium halides as the electrolytes enabled the halogenation of o-arylalkynylanilines to give C3-halogenated indoles whereas naphtho[1',2':4,5]furo[3,2-b]indoles could be obtained by changing the electrolyte from ammonium halides to KI. Interestingly, by combining acetone as the solvent and both NH4I and NH4Cl as the electrolytes, the reaction worked through an intramolecular annulation and [5 + 1] cyclization cascade to form naphtho[1',2':5,6][1,3]oxazino[3,4-a]indoles.
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Affiliation(s)
- Jie Zhang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Shao-Qing Shi
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Guo-Yun Dong
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
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Kamble OS, Khatravath M, Dandela R. Applications of Ethynylanilines as Substrates for Construction of Indoles and Indole‐Substituted Derivatives. ChemistrySelect 2021. [DOI: 10.1002/slct.202101437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Omkar S. Kamble
- Department of Industrial and Engineering Chemistry Institute of Chemical Technology Indian oil Odisha Campus, Kharagpur extension Centre, Mouza, Samantpuri Bhubaneswar 751013 Odisha India
| | - Mahender Khatravath
- Department of Chemistry Central university of South Bihar, Gaya SH-7, Panchanpur Road, Karhara, Post Fatehpur, Gaya Bihar 824236 India
| | - Rambabu Dandela
- Department of Industrial and Engineering Chemistry Institute of Chemical Technology Indian oil Odisha Campus, Kharagpur extension Centre, Mouza, Samantpuri Bhubaneswar 751013 Odisha India
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6
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Debnath S, Liang L, Lu M, Shi Y. Domino C-N Bond Formation via a Palladacycle with Diaziridinone. An Approach to Indolo[3,2- b]indoles. Org Lett 2021; 23:3237-3242. [PMID: 33886335 DOI: 10.1021/acs.orglett.1c00466] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Palladium-catalyzed C-N bond formation is one of the widely used transformations for the synthesis of structurally diverse N-heterocycles. This work describes an efficient palladium-catalyzed multiple-C-N bond formation reaction for the synthesis of highly π-conjugated N-heterocycles, indolo[3,2-b]indoles with di-tert-butyldiaziridinone. The reaction likely proceeds through the initial formation of an indole-fused palladacycle by nucleophilic aminopalladation and subsequent bisamination to give indolo[3,2-b]indoles.
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Affiliation(s)
- Sudarshan Debnath
- Institute of Natural and Synthetic Organic Chemistry, Changzhou University, Changzhou 213164, China
| | - Lingli Liang
- Institute of Natural and Synthetic Organic Chemistry, Changzhou University, Changzhou 213164, China
| | - Mei Lu
- Institute of Natural and Synthetic Organic Chemistry, Changzhou University, Changzhou 213164, China
| | - Yian Shi
- Institute of Natural and Synthetic Organic Chemistry, Changzhou University, Changzhou 213164, China.,Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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Chen J, Zhang X, Wu J, Wang R, Lei C, An Y. Facile one-pot synthesis of diarylacetylenes from arylaldehydes via an addition-double elimination process. Org Biomol Chem 2021; 19:4701-4705. [PMID: 33988213 DOI: 10.1039/d1ob00627d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical one-pot protocol has been developed to synthesize diarylacetylenes from arylaldehydes by treatment with 1-(arylmethyl)benzotriazoles and LiN(SiMe3)2. The reaction proceeded through imine formation, Mannich-type addition and double elimination to deliver products in up to 99% yields with broad substrate scope. In addition, gram-scale synthesis of 1-bromo-4-(phenylethynyl)benzene has been demonstrated.
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Affiliation(s)
- Jianyang Chen
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China.
| | - Xuan Zhang
- School of Intelligent Manufacturing Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China
| | - Jiajun Wu
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China.
| | - Rui Wang
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China.
| | - Chunlin Lei
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China.
| | - Yanan An
- College of Pharmacy, Chongqing University of Arts and Sciences, Yongchuan 402160, China
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8
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Shan XH, Yang B, Qu JP, Kang YB. CuSO 4-Catalyzed dual annulation to synthesize O, S or N-containing tetracyclic heteroacenes. Chem Commun (Camb) 2020; 56:4063-4066. [PMID: 32162642 DOI: 10.1039/d0cc01172j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this work, CuSO4 is utilized as a practical redox catalyst for tandem dual annulation in the synthesis of indole-fused tetracyclic heteroacenes, which are important skeletons in both medicinal chemistry and materials chemistry. The preparation of such skeletons in a convenient and efficient manner is in high demand. This method realizes the modular synthesis of benzofuro-, benzothieno-, and indoloindoles from abundant feedstocks such as 2-halobenzyl halides and nitrile derivatives in up to 99% yields, providing a rapid access to diverse indole-fused heteroacenes with biological or optoelectronic properties.
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Affiliation(s)
- Xiang-Huan Shan
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Bo Yang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Jian-Ping Qu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yan-Biao Kang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
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9
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Leonel G, Back DF, Zeni G. Synthesis of 3‐Substituted Chalcogenophene‐Fused Indoles from 2‐Alkynylindoles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901213] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Guilherme Leonel
- Laboratório de Síntese, Reatividade Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE, UFSM Santa Maria, Rio Grande do Sul Brazil 97105-900
| | - Davi F. Back
- Laboratório de Materiais Inorgânicos Departamento de Química, UFSM Santa Maria, Rio Grande do Sul Brazil 97105-900
| | - Gilson Zeni
- Laboratório de Síntese, Reatividade Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE, UFSM Santa Maria, Rio Grande do Sul Brazil 97105-900
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10
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Zhou C, Jiang J, Wang J. Three-Component Synthesis of Isoquinoline Derivatives by a Relay Catalysis with a Single Rhodium(III) Catalyst. Org Lett 2019; 21:4971-4975. [DOI: 10.1021/acs.orglett.9b01456] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chao Zhou
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Jijun Jiang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
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11
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Uruvakili A, Kumara Swamy KC. Gold catalysed transformation of 2-arylindoles to terphenyl amines via 3-dienyl indoles and Brønsted acid promoted formation of 2-carboxyindoles to 3-indenylindoles via 3-allenylindoles. Org Biomol Chem 2019; 17:3275-3284. [PMID: 30848275 DOI: 10.1039/c9ob00232d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold-catalysed intramolecular reaction of unprotected/protected 3-dienyl indoles leads to the formation of functionalised terphenylamines with high efficiency; this reaction can also be accomplished in one pot by starting with 2-arylindole and propargylic alcohols. This reaction occurs via 3-dienyl indoles and proceeds likely by gold-catalysed cascade cyclisation, aromatisation and fragmentation of the indole heterocyclic moiety. We have also found that PTSA can work well giving comparable yields, but at least one mole equivalent of PTSA is required. On the other hand, 3-indenylindoles have been synthesised from indole-2-carboxylates (2-carboxyindoles) and propargylic alcohols through Brønsted acid mediation. Many of these indenylindoles exhibit isomerism (probably diastereomers) in the solution state (1H NMR). Two examples of indolo-indenyl acetates have been prepared by reacting the above terphenylanilines with PhI(OAc)2. Key products are characterised by X-ray crystallography.
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Affiliation(s)
- Anasuyamma Uruvakili
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India.
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12
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Yi X, Liu B, Chen K, Chen W, Chen W. Unbridged Rh(ii)–Rh(ii) complexes of N-heterocyclic carbenes and reactions with O2 to form dirhodium(μ–η1:η1-O2) complexes. Dalton Trans 2019; 48:3835-3839. [DOI: 10.1039/c9dt00421a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Dimeric rhodium(ii) [Rh(L)(CH3CN)]2(PF6)4 and rhodium(iii) peroxide [Rh(L)(PPh3)]2(μ–η1:η1-O2)(PF6)4 and [Rh(L)(PCy3)]2(μ–η1:η1-O2)(PF6)4 (L = bis(N-pyridylimidazolylidenyl)methane) were reported.
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Affiliation(s)
- Xiaofei Yi
- Department of Chemistry
- Zhejiang University
- Hangzhou 310007
- China
| | - Bin Liu
- Zhejiang Province Key Laboratory of Noble Metal Catalytic Materials and Technology
- Hangzhou
- China
| | - Kai Chen
- Department of Chemistry
- Zhejiang University
- Hangzhou 310007
- China
| | - Wei Chen
- Department of Chemistry
- Zhejiang University
- Hangzhou 310007
- China
| | - Wanzhi Chen
- Department of Chemistry
- Zhejiang University
- Hangzhou 310007
- China
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