1
|
Bao M, Carriola DVN, Arman H, Doyle MP. HNTf 2-Catalyzed Formal [3 + 2] Cycloaddition of Vinyldiazoacetates to Indole-Substituted Diazo Compounds and Their Conversion to Carbazoles. Org Lett 2024. [PMID: 38796778 DOI: 10.1021/acs.orglett.4c01628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Triflimide catalysis of the [3 + 2]-cycloaddition of 3-indolymethanols with vinyldiazoacetates provides general access to β-tetrahydrocyclopenta[b]indol-substituted α-diazoesters. Initiated by addition of the in situ generated vinylogous iminium electrophile from 3-indolymethanol to the vinylogous position of the vinyldiazo compound and completed by intramolecular cyclization from the vinyldiazonium ion intermediate, this transformation occurs in good yields and excellent diastereoselectivity with a broad substrate scope under mild conditions. The resulting α-diazoesters undergo Rh2(OAc)4-catalyzed substrate-dependent 1,2-migration to form multisubstituted carbazoles in high yields.
Collapse
Affiliation(s)
- Ming Bao
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Diana Victoria Navarrete Carriola
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710 Reynosa, México
| | - Hadi Arman
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Michael P Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| |
Collapse
|
2
|
Kobayashi A, Tabata S, Yoshida S. Highly substituted benzo[ b]furan synthesis through substituent migration. Chem Commun (Camb) 2024; 60:4545-4548. [PMID: 38578172 DOI: 10.1039/d4cc01192a] [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
An unusual benzofuran synthesis from 2,6-disubstituted phenols and alkynyl sulfoxides is disclosed. Various highly substituted benzofurans were synthesized via the charge-accelerated [3,3]-sigmatropic rearrangement and subsequent substituent migration. Multiaryl-substituted benzofurans and fully substituted benzofurans were prepared on the basis of the unique reaction mechanism.
Collapse
Affiliation(s)
- Akihiro Kobayashi
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan.
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Shinya Tabata
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan.
| | - Suguru Yoshida
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan.
| |
Collapse
|
3
|
Wang X, Zhou AH, Hu TQ, Xu Z, Zhou B, Ye LW. Gold Catalysis, Asymmetric Friedel-Crafts Alkylation Cascade for One-Pot Synthesis of Chiral Dihydrocarbazoles and Dihydrodibenzofurans. Org Lett 2024; 26:2051-2056. [PMID: 38436250 DOI: 10.1021/acs.orglett.4c00311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
A one-pot gold-catalyzed acyl migration followed by ytterbium-catalyzed asymmetric Friedel-Crafts alkylation is disclosed, leading to the rapid synthesis of chiral dihydrocarbazoles and dihydrodibenzofuran in generally moderate to good overall yields with good to excellent enantioselectivities. The gold-catalyzed acyl migration of propargyl acetates generates α-ylidene-β-diketones with high E/Z ratios, which are then subjected to the ytterbium-catalyzed asymmetric Friedel-Crafts alkylation without any purification. Importantly, this protocol provides a new type of substrate for asymmetric Friedel-Crafts alkylation.
Collapse
Affiliation(s)
- Xuan Wang
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ai-Hua Zhou
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tian-Qi Hu
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhou Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Bo Zhou
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|
4
|
Zhang ZQ, Zhu BW, Zhang JY, Chen H. Preparation and property analysis of antioxidant of carbazole derivatives. BMC Chem 2024; 18:49. [PMID: 38454508 PMCID: PMC10918967 DOI: 10.1186/s13065-024-01155-w] [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: 08/22/2023] [Accepted: 02/29/2024] [Indexed: 03/09/2024] Open
Abstract
Carbazole derivatives can be used as antioxidants in the lubricating oil industry. The alkylation of carbazole with 2-chloro-2-methylpropane and 2-bromopropane catalyzed by anhydrous aluminum chloride was studied. Initially, 3,6-di-iso-propylcarbazole and 3,6-di-tert-butylcarbazole were using dichloromethane and dibromomethane as solvents at room temperature, respectively. The synthesis conditions were optimized. Subsequently, the effects of reaction time, catalyst dosage, and molar ratio of carbazole to alkylating agent were investigated, and orthogonal experiments were performed. The structures of the carbazole derivatives were characterized by Fourier infrared spectroscopy (FT-IR), mass spectrum (MS) and nuclear magnetic resonance spectroscopy (NMR). The thermal stability of the synthesized carbazole derivatives was investigated by differential scanning calorimetry (DSC). The carbazole derivatives were added into the lubricating oil with a mass fraction of 0.8% and the miscibility, stability and oxidation resistance of the mixed system were evaluated by mechanical stirring and a rotary pressure vessel oxidation test (RPVOT). The DSC results showed that there was good thermal stability for the carbazole derivatives. The mechanical stirring method revealed good solubility and stability for the mixture of oil and carbazole derivatives. The RPVOT results showed that isopropyl carbazole derivatives could increase the oxidation induction period of lubricating oil to 1.39 times, and tert-butyl carbazole derivatives could increase the oxidation induction period of lubricating oil to 1.91 times. The antioxidant effect of tert-butyl carbazole derivatives was better than that of isopropyl carbazole derivatives.
Collapse
Affiliation(s)
- Zhi-Quan Zhang
- Department of Chemical and Environmental Engineering, Yingkou Institute of Technology, Yingkou, 115014, Liaoning, China
| | - Bao-Wei Zhu
- Department of Chemical and Environmental Engineering, Yingkou Institute of Technology, Yingkou, 115014, Liaoning, China
| | - Jing-Yu Zhang
- Department of Chemical and Environmental Engineering, Yingkou Institute of Technology, Yingkou, 115014, Liaoning, China
| | - Hong Chen
- Department of Chemical and Environmental Engineering, Yingkou Institute of Technology, Yingkou, 115014, Liaoning, China.
- Liaoning Key Laboratory of Chemical Additive Synthesis and Separation, Department of Chemical and Environmental Engineering, Yingkou Institute of Technology, Yingkou, 115014, Liaoning, China.
| |
Collapse
|
5
|
Kale A, Kwon SJ, Lee J, Lee JK, Lee K. Ca(II)-Catalyzed Cascade Reaction of Tryptamines with Propargylic Alcohols: Temperature-Driven Ring Opening and Closing via the Allene Migration Pathway for the Synthesis of Pyrrolo[1,2- a]indoles. Org Lett 2024; 26:1196-1200. [PMID: 38305701 DOI: 10.1021/acs.orglett.3c04357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
A temperature-dependent cascade of reactions between tryptamines and propargylic alcohols was developed to achieve selective formation of pyrroloindoline and pyrrolo[1,2-a]indole heterocycles by Ca(II) catalysis. The cascade consists of electrophilic addition of allene at the C3 carbon of indole followed by intramolecular cyclization at 60 °C to yield pyrroloindolines. Furthermore, simultaneous 1,2-allene migration and pyrrolidine ring opening were followed by intramolecular cyclization via C-N bond formation at reflux temperature to obtain pyrrolo[1,2-a]indole scaffolds. A wide range of substrates, a clean reaction profile, scalability, and good to excellent yields are the advantages of this protocol.
Collapse
Affiliation(s)
- Ashok Kale
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Seoul, Goyang 10326, Republic of Korea
| | - Su Jeong Kwon
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Seoul, Goyang 10326, Republic of Korea
| | - Joohan Lee
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Seoul, Goyang 10326, Republic of Korea
| | - Jae Kyun Lee
- Brain Science Institute, KIST, Seoul 02792, Republic of Korea
| | - Kyeong Lee
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Seoul, Goyang 10326, Republic of Korea
| |
Collapse
|
6
|
He J, Li X, He Q, Fan R. Cascade alkyl migration in 2-alkynylanilines for the synthesis of benzenoid ring multi-functionalized indoles. Chem Commun (Camb) 2023; 60:71-74. [PMID: 38018450 DOI: 10.1039/d3cc04815b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Cascade alkyl migration of 2-alkynylanilines via an aromaticity destruction and reconstruction process is reported. The first alkyl migration is triggered by generation of a dearomatized arenium species via oxidation and cyclization, and the second is driven by the force to restore the aromaticity of rearrangement products. The reaction gave rise to a range of multi-functionalized indoles.
Collapse
Affiliation(s)
- Jiwen He
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| | - Xiaohua Li
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| | - Qiuqin He
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| | - Renhua Fan
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| |
Collapse
|
7
|
Suresh S, Chien HS, Chen CH, Tsai HY, Chung DR, Kavala V, Yao CF. Iodine-Catalyzed Regioselective Synthesis of Diphenyl-Substituted Carbazoles via [4 + 2] Annulation of β-Formyl Ketones with Indoles. J Org Chem 2023. [PMID: 38032287 DOI: 10.1021/acs.joc.3c01857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
The [4 + 2] annulation of β-formyl ketones with an indole has been developed for the regioselective synthesis of diphenyl-substituted carbazoles in the presence of a catalytic amount of iodine. The 1,4-dicarbonyl compound containing a phenyl group at the α-position of an aldehyde group reacts more readily with indoles to form carbazole derivatives. Using this method, a variety of carbazole derivatives can be readily accessed under mild reaction conditions.
Collapse
Affiliation(s)
- Sundaram Suresh
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Rd, Taipei 11677, Taiwan R. O. C
| | - Hung-Sheng Chien
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Rd, Taipei 11677, Taiwan R. O. C
| | - Chao-Hua Chen
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Rd, Taipei 11677, Taiwan R. O. C
| | - Hao-Yu Tsai
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Rd, Taipei 11677, Taiwan R. O. C
| | - Dai-Ru Chung
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Rd, Taipei 11677, Taiwan R. O. C
| | - Veerababurao Kavala
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Rd, Taipei 11677, Taiwan R. O. C
| | - Ching-Fa Yao
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Rd, Taipei 11677, Taiwan R. O. C
| |
Collapse
|
8
|
Allen LAT, Natho P. Trends in carbazole synthesis - an update (2013-2023). Org Biomol Chem 2023; 21:8956-8974. [PMID: 37906471 DOI: 10.1039/d3ob01605f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
The interest of scientists in the carbazole core has risen steadily over the last 30 years, particularly over the last decade given its presence in several active pharmaceutical ingredients, functional materials and a wide range of biologically active natural products. The continuous development of more efficient, more (regio-)selective and "greener" methodologies to access the carbazole core is thus imperative. This review compares and evaluates synthetic strategies towards the carbazole core that have been reported since 2013, with a focus on their applicability towards the total synthesis of carbazole-containing natural products.
Collapse
Affiliation(s)
- Lewis A T Allen
- CheMastery, Paper Yard, 11a Quebec Way, London, SE16 7LG, UK
| | - Philipp Natho
- FLAME-Lab, Flow Chemistry and Microreactor Technology Laboratory, Department of Pharmacy-Drug Sciences, University of Bari "A. Moro", Via E. Orabona 4, 70125 Bari, Italy
| |
Collapse
|
9
|
Kumar MP, G M, Amaladass P, Manikandan C, Dhayalan V. Recent synthetic strategies for the construction of functionalized carbazoles and their heterocyclic motifs enabled by Lewis acids. RSC Adv 2023; 13:32596-32626. [PMID: 37936643 PMCID: PMC10626344 DOI: 10.1039/d3ra06396h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 10/25/2023] [Indexed: 11/09/2023] Open
Abstract
This article demonstrates recent innovative cascade annulation methods for preparing functionalized carbazoles and their related polyaromatic heterocyclic compounds enabled by Lewis acid catalysts. Highly substituted carbazole scaffolds were synthesized via Lewis acid mediated Friedel-Crafts arylation, electrocyclization, intramolecular cyclization, cycloaddition, C-N bond-formations, aromatization and cascade domino reactions, metal-catalyzed, iodine catalyzed reactions and multi-component reactions. This review article mainly focuses on Lewis acid-mediated recent synthetic methods to access a variety of electron-rich and electron-poor functional groups substituted carbazole frameworks in one-pot reactions. Polyaromatic carbazole and their related nitrogen-based heterocyclic compounds were found in several synthetic applications in pharma industries, energy devices, and materials sciences. Moreover, the review paper briefly summarised new synthetic strategies of carbazole preparation approaches will assist academic and pharma industries in identifying innovative protocols for producing poly-functionalized carbazoles and related highly complex heterocyclic compounds and discovering active pharmaceutical drugs or carbazole-based alkaloids and natural products.
Collapse
Affiliation(s)
- Marappan Pradeep Kumar
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
| | - Mahantesh G
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
| | - P Amaladass
- Department of Chemistry, Madanapalle Institute of Technology & Science Madanapalle 517325 Andhra Pradesh India
| | - Chitrarasu Manikandan
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
| | - Vasudevan Dhayalan
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
| |
Collapse
|
10
|
Cao TY, Qi L, Wang LJ. Switchable Regioselective 7- endo or 6- exo Iodocyclization of O-Homoallyl Benzimidates. J Org Chem 2023. [PMID: 36757344 DOI: 10.1021/acs.joc.2c02729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
We present a facile switchable regioselective 7-endo or 6-exo iodocyclization of O-homoallyl benzimidates here, which affords various iodo-substituted 1,3-oxazines and tetrahydro-1,3-oxazepines in a controllable manner. The products can further undergo substitution reactions to afford a series of rich functionalized target heterocyclic molecules. The developed protocol has the advantages of mild conditions, simple operation, and excellent functional group compatibility.
Collapse
Affiliation(s)
- Tong-Yang Cao
- College of Chemistry & Environmental Science, Key Laboratory of Medicinal Chemistry, and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, 180 Wusi Donglu, Baoding 071002, P. R. China
| | - Lin Qi
- College of Chemistry & Environmental Science, Key Laboratory of Medicinal Chemistry, and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, 180 Wusi Donglu, Baoding 071002, P. R. China
| | - Li-Jing Wang
- College of Chemistry & Environmental Science, Key Laboratory of Medicinal Chemistry, and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, 180 Wusi Donglu, Baoding 071002, P. R. China
| |
Collapse
|
11
|
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]
|
12
|
Kaur R, Banga S, Babu SA. Construction of carbazole-based unnatural amino acid scaffolds via Pd(II)-catalyzed C(sp 3)-H functionalization. Org Biomol Chem 2022; 20:4391-4414. [PMID: 35583129 DOI: 10.1039/d2ob00658h] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We report the synthesis of carbazole-based unnatural α-amino acid and non-α-amino acid derivatives via a Pd(II)-catalyzed bidentate directing group 8-aminoquinoline-aided β-C(sp3)-H activation/functionalization method. Various N-phthaloyl, DL-, L- and D-carboxamides derived from their corresponding α-amino acids, non-α-amino acids and aliphatic carboxamides were subjected to the β-C(sp3)-H functionalization with 3-iodocarbazoles in the presence of a Pd(II) catalyst to afford the corresponding carbazole moiety installed unnatural amino acid derivatives and aliphatic carboxamides. Carbazole motif-containing racemic (DL) and enantiopure (L and D) amino acid derivatives including phenylalanine, norvaline, leucine, norleucine and 2-aminooctanoic acid with anti-stereochemistry and various non-α-amino acid derivatives including GABA have been synthesized. Removal of the 8-aminoquinoline directing group, deprotection of the phthalimide moiety and the preparation of carbazole amino acid derivatives containing free amino- and carboxylate groups are shown. The carbazole motif is prevalent in alkaloids and biologically active molecules and functional materials. Thus, this work on the synthesis of carbazole-based unnatural amino acid derivatives would enrich the libraries of unnatural amino acid derivatives and carbazoles.
Collapse
Affiliation(s)
- Ramandeep Kaur
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Shefali Banga
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Srinivasarao Arulananda Babu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| |
Collapse
|
13
|
Pramanik S, Chatterjee S, Banerjee R, Chowdhury C. Palladium-Catalyzed Benzannulations of 1-(Indol-2-yl)but-3-yn-1-ols: Easy Access to Functionalized Carbazoles. Org Lett 2022; 24:1895-1900. [DOI: 10.1021/acs.orglett.2c00182] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Subhendu Pramanik
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata-700032, India
| | - Sarat Chatterjee
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata-700032, India
| | - Rumjhum Banerjee
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata-700032, India
| | - Chinmay Chowdhury
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata-700032, India
| |
Collapse
|
14
|
Wang J, Wang Y, Liu Y, Yan X, Yan Y, Chao S, Shang X, Ni T, Zhou P. Synthesis of Isoquinolylselenocyanates and Quinolylselenocyanates via Electrophilic Selenocyanogen Cyclization Induced by Pseudohalogen (SeCN)
2
Generated
in situ. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101169] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jia Wang
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Yun‐Zhe Wang
- School of Pharmaceutical Sciences Zhengzhou University Zhengzhou Henan 450001 People's Republic of China
| | - Yu‐Jie Liu
- College of Pharmacy Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Xin‐Xin Yan
- College of Pharmacy Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Yun‐Hui Yan
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Shu‐Jun Chao
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Xuefang Shang
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Tianjun Ni
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| | - Ping‐Xin Zhou
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 People's Republic of China
| |
Collapse
|
15
|
Lee J, Kang B, Kim D, Lee J, Chang S. Cobalt-Nitrenoid Insertion-Mediated Amidative Carbon Rearrangement via Alkyl-Walking on Arenes. J Am Chem Soc 2021; 143:18406-18412. [PMID: 34714632 DOI: 10.1021/jacs.1c10138] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We herein disclose the Cp*Co(III)(LX)-catalyzed amidative alkyl migration using 2,6-disubstituted phenyl azidoformates. Upon the cobalt-nitrenoid insertion toward the substituted ortho carbon, an arenium cationic species bearing a quaternary carbon is generated, and a subsequent alkyl migration process is suggested to occur through an unforeseen alkyl-walking mechanism. A quinolinol ligand of the cobalt catalyst system is proposed to facilitate the final product-releasing rearomatization process by serving as an internal base. This new mechanistic mode enabled both [1,2]- and [1,4]-alkyl rearrangements to allow the structural variation of N-heterocyclic compounds.
Collapse
Affiliation(s)
- Jeonghyo Lee
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Bora Kang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Dongwook Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Jia Lee
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Sukbok Chang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| |
Collapse
|
16
|
Yasui M, Inoue M, Nakao K, Takeda N, Ueda M. Sc(OTf) 3-Catalyzed Iodocyclization/Ritter-Type Amidation of N-Alkoxypropiolamides: A Synthetic Strategy for Isoxazol-3(2 H)-ones. J Org Chem 2021; 86:15498-15508. [PMID: 34670082 DOI: 10.1021/acs.joc.1c01987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Sc(OTf)3-catalyzed iodocyclization/Ritter-type amidation of N-alkoxypropiolamides for the synthesis of 4-iodoisoxazol-3(2H)-ones bearing an amide group has been developed. This domino protocol allows the construction of a valuable heterocycle, isoxazol-3(2H)-one, as well as the introduction of two functional groups. The reaction has a broad substrate scope and can be carried out on a large scale. Control experiments suggest that Sc(OTf)3 acts as a dual activator for both the iodocyclization and amidation steps. In addition, the N-alkoxy group in the substrate suppresses some of the side reactions.
Collapse
Affiliation(s)
- Motohiro Yasui
- Kobe Pharmaceutical University Motoyamakita, Higashinada, Kobe 658-8558, Japan
| | - Maki Inoue
- Kobe Pharmaceutical University Motoyamakita, Higashinada, Kobe 658-8558, Japan
| | - Kotone Nakao
- Kobe Pharmaceutical University Motoyamakita, Higashinada, Kobe 658-8558, Japan
| | - Norihiko Takeda
- Kobe Pharmaceutical University Motoyamakita, Higashinada, Kobe 658-8558, Japan
| | - Masafumi Ueda
- Kobe Pharmaceutical University Motoyamakita, Higashinada, Kobe 658-8558, Japan
| |
Collapse
|
17
|
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
|
18
|
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
|
19
|
Martín I, Aragoncillo C, Almendros P. Palladium‐Catalyzed Hydroarylation of Homopropargyl Iodoindoles with Concurrent Alkyl and Iodonium Migrations. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001267] [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)
- Irene Martín
- Instituto de Química Orgánica General, IQOG, CSIC Juan de la Cierva 3 28006 Madrid Spain
| | - Cristina Aragoncillo
- Grupo de Lactamas y Heterociclos Bioactivos Departamento de Química Orgánica Unidad Asociada al CSIC Facultad de Química Universidad Complutense de Madrid 28040 Madrid Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General, IQOG, CSIC Juan de la Cierva 3 28006 Madrid Spain
| |
Collapse
|
20
|
Bag D, Sawant SD. Heteroarene-tethered Functionalized Alkyne Metamorphosis. Chemistry 2021; 27:1165-1218. [PMID: 32603015 DOI: 10.1002/chem.202002154] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Indexed: 12/11/2022]
Abstract
Heteroarene-tethered functionalized alkynes are multipotent synthons in organic chemistry. This detailed Review described herein offers a thorough discussion of the metamorphosis of heteroarene-tethered functionalized alkynes, an area which has earned much attention over the past decade in the straightforward synthesis of architecturally complex heterocyclic scaffolds in atom and step economic manner. Depending upon the variety of functionalized alkynes, this Review is divided into multiple sections. Amongst the vast array of synthetic transformations covered, dearomatizing spirocyclizations and cascade spirocyclization/rearrangement are of great interest. Synthetic transformations involving the heteroarene-tethered functionalized alkynes with scope, challenges, limitations, mechanism, their application in the total synthesis of natural products and future perceptions are surveyed.
Collapse
Affiliation(s)
- Debojyoti Bag
- Laboratory 212, Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, Canal Road, Jammu, Jammu and Kashmir, 180001, India
| | - Sanghapal D Sawant
- Laboratory 212, Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, Canal Road, Jammu, Jammu and Kashmir, 180001, India
| |
Collapse
|
21
|
Reddy CR, Srinivasu E, Sathish P, Subbarao M, Donthiri RR. One-Pot Arylative Benzannulation of 2-Carbonyl-3-propargyl Indoles with Boronic Acids Leading to Arylated Carbazoles. J Org Chem 2021; 86:1118-1132. [PMID: 33322899 DOI: 10.1021/acs.joc.0c02601] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Arylative annulation of 2-carbonyl-3-propargyl indoles with boronic acids under sequential palladium/triflic acid catalysis is described. The present strategy to provide di- and triaryl carbazoles in one pot involves benzannulation through difunctionalization of alkynes. The strategy showed a good substrate scope with respect to boronic acids as well as 2-carbonyl-3-propargyl indoles to afford the corresponding carbazoles in decent yields.
Collapse
Affiliation(s)
- Chada Raji Reddy
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ejjirotu Srinivasu
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Puppala Sathish
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Muppidi Subbarao
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ramachandra Reddy Donthiri
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India
| |
Collapse
|
22
|
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
|
23
|
Javaid MS, Khan ZA, Mansha A, Shahzad SA. Iodine mediated carbocyclization reactions in organic syntheses: A review. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1867177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Zulfiqar Ali Khan
- Department of Chemistry, Government College University, Faisalabad, Pakistan
| | - Asim Mansha
- Department of Chemistry, Government College University, Faisalabad, Pakistan
| | | |
Collapse
|
24
|
Liu X, Liu Y, Chen L. Tandem Annulations of Propargylic Alcohols to Indole Derivatives. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000930] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao‐Yan Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics Chengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Yun‐Lin Liu
- School of Chemistry and Chemical Engineering Guangzhou University 230 Wai Huan Xi Road Guangzhou 510006 People's Republic of China
| | - Long Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics Chengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| |
Collapse
|
25
|
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
|
26
|
Debnath S, Das T, Pati TK, Majumdar S, Maiti DK. Metal-Free Indole-Phenacyl Bromide Cyclization: A Regioselective Synthesis of 3,5-Diarylcarbazoles. J Org Chem 2020; 85:13272-13279. [PMID: 33006280 DOI: 10.1021/acs.joc.0c01670] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A metal-free, simultaneous triple C-C coupling cyclization reaction between phenacyl bromides and indoles is discovered in a highly regioselective fashion to furnish 3,5-diarylcarbazoles. DMAP is utilized as the only reagent for the unusual and rapid cyclization reaction to furnish all new carbazole compounds through installation of a great diversity of substituents. A plausible radical mechanism for the new reaction is predicted by conducting various control experiments, competitive reactions, furoindole formation, and ESI-MS analyses of the ongoing cyclization reaction.
Collapse
Affiliation(s)
- Sudipto Debnath
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Tuluma Das
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Tanmay K Pati
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Swapan Majumdar
- Department of Chemistry, Tripura University, Suryamaninagar 799 022, India
| | - Dilip K Maiti
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| |
Collapse
|
27
|
Du LJ, Zhang Y, Zhang HY, Yin G, Wang XY, Zhao J, Han YP. Synthesis of 1,6-Dihydropyridine-3-carbonitrile Derivatives via Lewis Acid-Catalyzed Annulation of Propargylic Alcohols with ( E)-3-Amino-3-phenylacrylonitriles. J Org Chem 2020; 85:9863-9875. [PMID: 32666794 DOI: 10.1021/acs.joc.0c01171] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A novel Lewis acid-catalyzed, highly efficient, practical, and atom-economical protocol for the synthesis of functionalized 1,2-dihydropyridine-3-carbonitrile derivatives in the presence of Bi(OTf)3 (10 mol %) in tetrahydrofuran (2.0 mL) at 80 °C for 8 h in air is described, starting from readily accessed propargylic alcohols and (E)-3-amino-3-phenylacrylonitriles. This cycloaddition protocol, which is scalable and proceeds under mild conditions, is amenable to the gram-scale construction of valuable 1,2-dihydropyridine-3-carbonitriles. Furthermore, the good functional group compatibility and broad scope of this strategy were demonstrated by a broad range of propargylic alcohols and (E)-3-amino-3-phenylacrylonitriles, with yields ranging from 34 to 96%.
Collapse
Affiliation(s)
- Li-Juan Du
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Hong-Yu Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Guohui Yin
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Xiao-Yan Wang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Ya-Ping Han
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| |
Collapse
|
28
|
Qiu YF, Niu YJ, Song XR, Wei X, Chen H, Li SX, Wang XC, Huo C, Quan ZJ, Liang YM. Iodine promoted cascade cycloisomerization of 1-en-6,11-diynes. Chem Commun (Camb) 2020; 56:1421-1424. [PMID: 31912818 DOI: 10.1039/c9cc08286g] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iodine promoted cascade cycloisomerization of 1-en-6,11-diynes is presented for the easy preparation of tetrahydrobenzo[f]isoquinolines. This developed reaction system is identified as having good functional-group applicability and can be scaled up to gram quantities. In this transformation, two new cyclic frameworks and one carbonyl group are formed with four new bonds constructed. Additionally, the resulting iodo-substituted compounds could be further derived through simple elimination reactions.
Collapse
Affiliation(s)
- Yi-Feng Qiu
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, People's Republic of China.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
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
|
30
|
Wang J, Deng YJ, Yan XX, Liu YJ, Ge CP, Yan Y, Chao S, Zhou PX. Synthesis of 3-phosphinoylbenzofurans via electrophilic phosphination cyclization. Org Chem Front 2020. [DOI: 10.1039/c9qo01502g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
An expedient strategy for the synthesis of 3-phosphinoylbenzofurans through a cascade electrophilic phosphination cyclization has been presented.
Collapse
Affiliation(s)
- Jia Wang
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Yun-Jing Deng
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Xin-Xin Yan
- College of Pharmacy
- Xinxiang Medical University
- Xinxiang
- China
| | - Yu-Jie Liu
- College of Pharmacy
- Xinxiang Medical University
- Xinxiang
- China
| | - Chun-Po Ge
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Yunhui Yan
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Shujun Chao
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Ping-Xin Zhou
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| |
Collapse
|
31
|
Yaragorla S, Dada R, Bag D. An Expeditious Benzannulation Reaction of Indol-3-yl-but-3-yn-2-ols to Substituted 2-Iodocarbazoles via Domino 5-endo
Spirocyclization/Selective Vinyl Shift and Aromatization. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901393] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road Gachibowli Hyderabad 500046 India
| | - Ravikrishna Dada
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road Gachibowli Hyderabad 500046 India
| | - Debojyoti Bag
- School of Chemistry; University of Hyderabad; Prof. C. R. Rao Road Gachibowli Hyderabad 500046 India
| |
Collapse
|
32
|
Khan T, Yaragorla S. Iodocyclization of Propargyl Alcohols: Highly Facile Approach to Hetero/Carbocyclic Iodides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900474] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Tabassum Khan
- School of Chemistry; University of Hyderabad; P.O.Central Universit; 500046 Gachibowli Hyderabad India
| | - Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad; P.O.Central Universit; 500046 Gachibowli Hyderabad India
| |
Collapse
|
33
|
Singh S, Samineni R, Pabbaraja S, Mehta G. A General Carbazole Synthesis via Stitching of Indole–Ynones with Nitromethanes: Application to Total Synthesis of Carbazomycin A, Calothrixin B, and Staurosporinone. Org Lett 2019; 21:3372-3376. [DOI: 10.1021/acs.orglett.9b01111] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Shweta Singh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Ramesh Samineni
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Srihari Pabbaraja
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| |
Collapse
|
34
|
Zhang Z, He P, Du H, Xu J, Li P. Sulfur-Mediated Electrophilic Cyclization of Aryl-Substituted Internal Alkynes. J Org Chem 2019; 84:4517-4524. [PMID: 30848130 DOI: 10.1021/acs.joc.9b00136] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A sulfur-mediated electrophilic cyclization reaction of aryl-tethered internal alkynes has been developed. Triflic anhydride-activated sulfoxides induced the electrophilic cyclization and then demethylation with triethylamine in one pot, affording 3-sulfenyl-1,2-dihydronaphthalenes and related types of products in yields of ≤96%.
Collapse
Affiliation(s)
- Zhong Zhang
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Pan He
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Hongguang Du
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Jiaxi Xu
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Pingfan Li
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| |
Collapse
|
35
|
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
|
36
|
Guo Y, Wang Z, Zhu Y, Zhang Q, Wei D, Liu X, Fu Z. Access to polyfunctionalized carbazoles through π-extension of 2-methyl-3-oxoacetate indoles. Org Chem Front 2019. [DOI: 10.1039/c9qo01093a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A structurally diverse set of polyfunctionalized carbazoles was efficiently synthesized in acceptable to excellent yields.
Collapse
Affiliation(s)
- Yingying Guo
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zhoulu Wang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
| | - Ying Zhu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
| | - Qiaochu Zhang
- College of Chemistry
- Zhangzhou University
- Zhengzhou
- P. R. China
| | - Donghui Wei
- College of Chemistry
- Zhangzhou University
- Zhengzhou
- P. R. China
| | - Xiang Liu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zhenqian Fu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
| |
Collapse
|
37
|
Okitsu T, Nakahigashi H, Sugihara R, Fukuda I, Tsuji S, In Y, Wada A. Silyl Group-Directed 6-exo-dig Iodocyclization of Homopropargylic Carbamates and Amides. Chemistry 2018; 24:18638-18642. [PMID: 30311697 DOI: 10.1002/chem.201804794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Indexed: 12/21/2022]
Abstract
Iodocyclization of silyl group-substituted homopropargylic carbamates and amides proceeded via 6-exo-dig mode to afford 6-vinylene-4,5-dihydro-1,3-oxazines in moderate to quantitative yields. This is the first report for silyl group-solely directed iodocyclization of alkynes utilizing the β-silyl effect. Under these mild reaction conditions, various functionalities such as secondary alcohol, acetal, urea, and sulfide were tolerated.
Collapse
Affiliation(s)
- Takashi Okitsu
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Hikaru Nakahigashi
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Ryosuke Sugihara
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Ikki Fukuda
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Saki Tsuji
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Yasuko In
- Department of Physical Chemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan
| | - Akimori Wada
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
| |
Collapse
|
38
|
Yaragorla S, Bag D, Dada R, Jose KJ. Iodo-Cycloisomerization of Aryl(indol-3-yl)methane-Tethered Propargyl Alcohols to 3-Iodocarbazoles via Selective 1,2-Alkyl Migration. ACS OMEGA 2018; 3:15024-15034. [PMID: 31458169 PMCID: PMC6643784 DOI: 10.1021/acsomega.8b02393] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 10/25/2018] [Indexed: 05/03/2023]
Abstract
Herein, we disclose the first report on iodo-cycloisomerization of 1-(indol-3-yl)-1-arylbut-3-yn-2-ols to form 3-iodocarbazoles. The synthesis proceeds through a cascade 5-endo-spirocyclization, followed by selective 1,2-alkyl migration. This method governs the green synthesis principles such as open-flask reaction, AcOEt as the solvent, rt reaction with short time, use of iodine, and broad substrate scope with atom and step economy.
Collapse
|
39
|
Liu D, Gao Y, Huang J, Fu Z, Huang W. Carbene-Catalyzed Construction of Carbazoles from Enals and 2-Methyl-3-oxoacetate Indoles. J Org Chem 2018; 83:14210-14217. [PMID: 30351940 DOI: 10.1021/acs.joc.8b02532] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Direct and rapid construction of carbazoles has been successfully developed via carbene-catalyzed oxidative formal [4 + 2] annulation of enals with 2-methyl-3-oxoacetate indoles. This metal-free reaction features a broad substrate scope, features good functional-group tolerance, proceeds under mild conditions, and can be easily scaled up.
Collapse
Affiliation(s)
- Dehai Liu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , 30 South Puzhu Road , Nanjing 211816 , China
| | - Yaru Gao
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , 30 South Puzhu Road , Nanjing 211816 , China
| | - Jie Huang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , 30 South Puzhu Road , Nanjing 211816 , China
| | - Zhenqian Fu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , 30 South Puzhu Road , Nanjing 211816 , China
| | - Wei Huang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , 30 South Puzhu Road , Nanjing 211816 , China.,Shaanxi Institute of Flexible Electronics (SIFE) , Northwestern Polytechnical University (NPU) , 127 West Youyi Road , Xi'an 710072 , China
| |
Collapse
|
40
|
Kaufmann J, Jäckel E, Haak E. Rutheniumkatalysierte Kaskadenanellierung von Indol mit Propargylalkoholen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801846] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Julia Kaufmann
- Institut für Chemie; Otto von Guericke Universität Magdeburg; Universitätsplatz 2 39106 Magdeburg Deutschland
| | - Elisabeth Jäckel
- Institut für Chemie; Otto von Guericke Universität Magdeburg; Universitätsplatz 2 39106 Magdeburg Deutschland
| | - Edgar Haak
- Institut für Chemie; Otto von Guericke Universität Magdeburg; Universitätsplatz 2 39106 Magdeburg Deutschland
| |
Collapse
|
41
|
Kaufmann J, Jäckel E, Haak E. Ruthenium-Catalyzed Cascade Annulation of Indole with Propargyl Alcohols. Angew Chem Int Ed Engl 2018; 57:5908-5911. [DOI: 10.1002/anie.201801846] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Julia Kaufmann
- Institute of Chemistry; Otto von Guericke University Magdeburg; Universitätsplatz 2 39106 Magdeburg Germany
| | - Elisabeth Jäckel
- Institute of Chemistry; Otto von Guericke University Magdeburg; Universitätsplatz 2 39106 Magdeburg Germany
| | - Edgar Haak
- Institute of Chemistry; Otto von Guericke University Magdeburg; Universitätsplatz 2 39106 Magdeburg Germany
| |
Collapse
|
42
|
Tharra P, Baire B. Regioselective Cyclization of (Indol-3-yl)pentyn-3-ols as an Approach to (Tetrahydro)carbazoles. Org Lett 2018; 20:1118-1121. [DOI: 10.1021/acs.orglett.8b00042] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Prabhakararao Tharra
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamilnadu, India-600036
| | - Beeraiah Baire
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamilnadu, India-600036
| |
Collapse
|
43
|
Huang Y, Guo Z, Song H, Liu Y, Wang Q. Silver–copper co-catalyzed cascade intramolecular cyclization/desulfinamide/dehydrogenation: one-pot synthesis of substituted carbazoles. Chem Commun (Camb) 2018; 54:7143-7146. [DOI: 10.1039/c8cc03600d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multi-substituted carbazoles were obtained from a silver–copper co-catalyzed cascade intramolecular cyclization/desulfinamide/dehydrogenation reaction.
Collapse
Affiliation(s)
- Yuanqiong Huang
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Zhonglin Guo
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| |
Collapse
|
44
|
Zhou B, Zhang YQ, Liu X, Ye LW. Gold-catalyzed intermolecular reaction of ynamides with 3-indolyl azides via an unexpected 1,2-alkyl migration. Sci Bull (Beijing) 2017; 62:1201-1206. [PMID: 36659514 DOI: 10.1016/j.scib.2017.08.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 08/10/2017] [Accepted: 08/16/2017] [Indexed: 01/21/2023]
Abstract
A gold-catalyzed intermolecular reaction of ynamides with 3-indolyl azides via the presumable α-imino gold carbenes has been developed, providing an alternative and efficient way for the synthesis of valuable 3-amino-β-carbolines in generally good to excellent yields. Importantly, this new protocol involves an unexpected 1,2-alkyl migration pathway.
Collapse
Affiliation(s)
- Bo Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces and The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ying-Qi Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces and The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China.
| |
Collapse
|
45
|
González JF, Rocchi D, Tejero T, Merino P, Menéndez JC. One-Pot Synthesis of Functionalized Carbazoles via a CAN-Catalyzed Multicomponent Process Comprising a C-H Activation Step. J Org Chem 2017. [PMID: 28636375 DOI: 10.1021/acs.joc.7b01199] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The microwave-promoted three-component reaction between o-nitrochalcones, primary amines and β-dicarbonyl compounds in the presence of Ce(IV) ammonium nitrate constitutes the first example of a multicomponent carbazole synthesis. This reaction furnishes highly substituted and functionalized carbazole derivatives via a double annulation process that generates two C-C and two C-N bonds, with water as the only side product. Mechanistically, this transformation has some unusual features that include an intramolecular coupled hydrogenation-dehydrogenation process, the functionalization of a C-H group by direct attack onto a nitrogen function and a CAN-catalyzed reduction via hydride transfer from ethanol. The mechanisms of these reactions were studied with the aid of computational techniques.
Collapse
Affiliation(s)
- Juan F González
- Departamento de Química Orgánica y Farmacéutica, Universidad Complutense, Facutad de Farmacia , Plaza de Ramón y Cajal s.n., 28010 Madrid, Spain
| | - Damiano Rocchi
- Departamento de Química Orgánica y Farmacéutica, Universidad Complutense, Facutad de Farmacia , Plaza de Ramón y Cajal s.n., 28010 Madrid, Spain
| | - Tomás Tejero
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza, CSIC , 50009 Zaragoza, Spain
| | - Pedro Merino
- Instituto de Biocomputación y Fisica de Sistemas Complejos (BIFI), Universidad de Zaragoza , 50009 Zaragoza, Spain
| | - J Carlos Menéndez
- Departamento de Química Orgánica y Farmacéutica, Universidad Complutense, Facutad de Farmacia , Plaza de Ramón y Cajal s.n., 28010 Madrid, Spain
| |
Collapse
|
46
|
Alimi I, Remy R, Bochet CG. Photochemical C-H Activation: Generation of Indole and Carbazole Libraries, and First Total Synthesis of Clausenawalline D. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700300] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Isak Alimi
- Department of Chemistry; University of Fribourg; 9 Chemin du Musée 1700 Fribourg Switzerland
| | - Richard Remy
- Department of Chemistry; University of Fribourg; 9 Chemin du Musée 1700 Fribourg Switzerland
| | - Christian G. Bochet
- Department of Chemistry; University of Fribourg; 9 Chemin du Musée 1700 Fribourg Switzerland
| |
Collapse
|
47
|
Yan Q, Gin E, Wasinska-Kalwa M, Banwell MG, Carr PD. A Palladium-Catalyzed Ullmann Cross-Coupling/Reductive Cyclization Route to the Carbazole Natural Products 3-Methyl-9H-carbazole, Glycoborine, Glycozoline, Clauszoline K, Mukonine, and Karapinchamine A. J Org Chem 2017; 82:4148-4159. [DOI: 10.1021/acs.joc.7b00044] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Qiao Yan
- Research School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Emma Gin
- Research School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Malgorzata Wasinska-Kalwa
- Research School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Martin G. Banwell
- Research School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Paul D. Carr
- Research School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| |
Collapse
|
48
|
García-García P, Sanjuán AM, Rashid MA, Martínez-Cuezva A, Fernández-Rodríguez MA, Rodríguez F, Sanz R. Synthesis of Functionalized 1H-Indenes and Benzofulvenes through Iodocyclization of o-(Alkynyl)styrenes. J Org Chem 2016; 82:1155-1165. [DOI: 10.1021/acs.joc.6b02788] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Patricia García-García
- Departamento
de Química Orgánica y Química Inorgánica, Universidad de Alcalá, 28871 Alcalá de Henares,
Madrid, Spain
| | - Ana M. Sanjuán
- Área
de Química Orgánica, Departamento de Química,
Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Muhammad A. Rashid
- Área
de Química Orgánica, Departamento de Química,
Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Alberto Martínez-Cuezva
- Área
de Química Orgánica, Departamento de Química,
Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Manuel A. Fernández-Rodríguez
- Área
de Química Orgánica, Departamento de Química,
Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Félix Rodríguez
- Instituto
Universitario de Química Organometálica “Enrique
Moles”, Universidad de Oviedo, C/Julián Clavería,
8, 33006 Oviedo, Spain
| | - Roberto Sanz
- Área
de Química Orgánica, Departamento de Química,
Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| |
Collapse
|
49
|
Lin S, He X, Meng J, Gu H, Zhang P, Wu J. An Expedient Synthesis of Carbazoles through Potassium tert
-Butoxide-Promoted Intramolecular Direct C-H Bond Arylation. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601293] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Songbo Lin
- Department of Chemistry; Zhejiang University; 310027 Hangzhou P. R. China
| | - Xingrui He
- Department of Chemistry; Zhejiang University; 310027 Hangzhou P. R. China
| | - Jinpeng Meng
- Department of Chemistry; Zhejiang University; 310027 Hangzhou P. R. China
| | - Haining Gu
- Department of Chemistry; Zhejiang University; 310027 Hangzhou P. R. China
| | - Peizhi Zhang
- School of Biological and Chemical Engineering; Zhejiang University of Science and Technology; 310012 Hangzhou P. R. China
| | - Jun Wu
- Department of Chemistry; Zhejiang University; 310027 Hangzhou P. R. China
| |
Collapse
|
50
|
Guo B, Huang X, Fu C, Ma S. Carbazoles from the [4C+2C] Reaction of 2,3-Allenols with Indoles. Chemistry 2016; 22:18343-18348. [DOI: 10.1002/chem.201604317] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Binjie Guo
- Laboratory of Molecular Recognition and Synthesis; Department of Chemistry; Zhejiang University; Hangzhou 310027 Zhejiang P.R. China
| | - Xin Huang
- Laboratory of Molecular Recognition and Synthesis; Department of Chemistry; Zhejiang University; Hangzhou 310027 Zhejiang P.R. China
| | - Chunling Fu
- Laboratory of Molecular Recognition and Synthesis; Department of Chemistry; Zhejiang University; Hangzhou 310027 Zhejiang P.R. China
| | - Shengming Ma
- Laboratory of Molecular Recognition and Synthesis; Department of Chemistry; Zhejiang University; Hangzhou 310027 Zhejiang P.R. China
| |
Collapse
|