1
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Mino T, Yamaoka T, Watanabe K, Masuda C, Kasano S, Yoshida Y, Takita R, Kasashima Y, Sakamoto M. Synthesis of 3-Allylindoles via Annulation of N-Allyl-2-ethynylaniline Derivatives Using a P,Olefin Type Ligand/Pd(0) Catalyst. J Org Chem 2022; 87:7365-7377. [DOI: 10.1021/acs.joc.2c00588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takashi Mino
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Soft Molecular Activation Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Toshiki Yamaoka
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Kohei Watanabe
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Chihiro Masuda
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Shohei Kasano
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yasushi Yoshida
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Soft Molecular Activation Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Ryo Takita
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yoshio Kasashima
- Education Center, Chiba Institute of Technology, Shibazono 2-2-1, Narashino, Chiba 275-0023, Japan
| | - Masami Sakamoto
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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2
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Chen F, Huang X, Yang C, Jiang H, Zeng W. Photocatalyzed Coupling-Cyclization of ortho-Alkynylaryl Vinylethers with Arylsulfonyl Azides. J Org Chem 2021; 86:14572-14585. [PMID: 34623805 DOI: 10.1021/acs.joc.1c01437] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel visible-light-induced coupling-cyclization of ortho-alkynylaryl vinylethers with arylsulfonyl azides has been described. This transformation provided a concise approach to access C3-exocyclic C═C bond/C2-alkylsulfone-tethered benzofurans via a solvent-leveraged carbosulfonylation and [2 + 2 + 3] cyclization. Primary mechanistic studies demonstrated that THF belongs to a crucial H atom source.
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Affiliation(s)
- Fengjuan Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Xiang Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Can Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wei Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
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3
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Duc DX. Recent Achievement in the Synthesis of Benzo[b]furans. Curr Org Synth 2020; 17:498-517. [PMID: 32586253 DOI: 10.2174/1570179417666200625212639] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/21/2020] [Accepted: 05/28/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Benzo[b]furan derivatives are oxygen-containing heterocyclic compounds consisting of fused benzene and furan rings and are present in a large number of natural and non-natural compounds. This class of compounds has a wide spectrum of biological activities, such as antiarrhythmic, anticancer, inflammatory, antioxidant, antimicrobial, and antiviral. Furthermore, benzo[b]furan derivatives have also been applied in various areas, such as organic electroluminescence device materials and organic dyes, photosensitizing material, organic synthesis as building blocks or intermediates. Because of a broad range of applicability, the synthesis of benzo[b]furan derivative has drawn great attention of chemists and many studies on the synthesis of this class of compounds have been reported recently. This review will give an overview of benzo[b]furan preparation based on studies dating back to the year 2012. OBJECTIVE In this review, recent development in the synthesis of benzo[b]furans are discussed. There has been increasingly new methodologies for the construction of benzo[b]furans skeleton to improve efficiency or develop environmentally friendly procedures. In some studies, reaction mechanisms were also outlined. CONCLUSION Many methods for the synthesis of benzo[b]furans have been reported recently. Most of them involve cyclization or cycloisomerization processes. Unquestionably, more imaginative strategies for the construction of benzo[b]furan skeleton will be established in the near future. Application of known methods to natural products or drug synthesis, on industrial scale for the synthesis of economically or medicinally important benzo[ b]furans will probably be paid attention to.
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Affiliation(s)
- Dau Xuan Duc
- Department of Chemistry, Vinh University, Vinh City, Vietnam
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4
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Zhang J, Wang JY, Huang MH, Hao WJ, Tu XC, Tu SJ, Jiang B. Ligand-Free Pd-Catalyzed Synthesis of 3-Allylbenzofurans by Merging Decarboxylative Allylation and Nucleophilic Cyclization. J Org Chem 2020; 85:7036-7044. [DOI: 10.1021/acs.joc.0c00375] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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
| | - Jia-Yin Wang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Min-Hua Huang
- 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
| | - Xing-Chao Tu
- 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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5
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Silver(I) catalyzed intermolecular alkene carbo-alkoxylation through cleavage of allylic ether C–O bond. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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6
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Schultze C, Schmidt B. Functionalized Benzofurans via Microwave‐Promoted Tandem Claisen‐Rearrangement/5‐
endo
‐dig Cyclization. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3671] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Christiane Schultze
- Universitaet Potsdam, Institut fuer Chemie Karl‐Liebknecht‐Straße 24‐25 Potsdam‐Golm D‐14476 Germany
| | - Bernd Schmidt
- Universitaet Potsdam, Institut fuer Chemie Karl‐Liebknecht‐Straße 24‐25 Potsdam‐Golm D‐14476 Germany
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7
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Fernández-Canelas P, Rubio E, González JM. Oxyacylation of Iodoalkynes: Gold(I)-Catalyzed Expeditious Access to Benzofurans. Org Lett 2019; 21:6566-6569. [PMID: 31348671 DOI: 10.1021/acs.orglett.9b02551] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
(Acetonitrile)[1,3-bis(2,6-diisopropylphenyl)-imidazole-2-ylidene] gold(I) catalyzes the cycloisomerization of 2-(iodoethynyl)aryl esters to give 3-iodo-2-acyl benzofurans. This catalytic transformation is the result of an unprecedented selective synthetic event, which comprises a [1,2]-iodine shift, a C-O ring-closure step, and a C-C bond-formation that installs the ketone functionality into the new ring. Experimental evidence supports the involvement of a β-iodo-substituted gold vinylidene as the intermediate species. The reaction tolerates different substitution patterns at the phenol moiety and a wide diversity of groups at the carboxylic fragment, including not only alkyl but also alkenyl, aryl, and heteroaryl groups.
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Affiliation(s)
- Paula Fernández-Canelas
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica "Enrique Moles" , Universidad de Oviedo , C/Julián Clavería 8 , 33006 Oviedo , Spain
| | - Eduardo Rubio
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica "Enrique Moles" , Universidad de Oviedo , C/Julián Clavería 8 , 33006 Oviedo , Spain
| | - José M González
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica "Enrique Moles" , Universidad de Oviedo , C/Julián Clavería 8 , 33006 Oviedo , Spain
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8
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Watanabe K, Mino T, Masuda C, Yoshida Y, Sakamoto M. Synthesis of 7-Allylated Benzofuran Derivatives from o-
Allyloxyethynylbenzene via Claisen Rearrangement and TBAF-Catalyzed Annulation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801800] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Kohei Watanabe
- Department of Applied Chemistry and Biotechnology; Graduate School of Engineering; Chiba University; 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Takashi Mino
- Department of Applied Chemistry and Biotechnology; Graduate School of Engineering; Chiba University; 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
- Molecular Chirality Research Center; Chiba University; 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Chihiro Masuda
- Department of Applied Chemistry and Biotechnology; Graduate School of Engineering; Chiba University; 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Yasushi Yoshida
- Department of Applied Chemistry and Biotechnology; Graduate School of Engineering; Chiba University; 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
- Molecular Chirality Research Center; Chiba University; 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Masami Sakamoto
- Department of Applied Chemistry and Biotechnology; Graduate School of Engineering; Chiba University; 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
- Molecular Chirality Research Center; Chiba University; 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
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9
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Watanabe K, Mino T, Yoshida Y, Sakamoto M. Hydrazone-Palladium Catalyzed Reactions Using Allyl Compounds. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.828] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Takashi Mino
- Graduate School of Engineering, Chiba University
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10
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Hu W, Li M, Jiang G, Wu W, Jiang H. Synthesis of 2,3-Difunctionalized Benzofuran Derivatives through Palladium-Catalyzed Double Isocyanide Insertion Reaction. Org Lett 2018; 20:3500-3503. [PMID: 29870267 DOI: 10.1021/acs.orglett.8b01277] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel palladium-catalyzed tandem cyclization of 1-(allyloxy)-2-ethynylbenzene derivatives with isocyanides in the presence of water has been developed. The key intermediates, benzofuran-3-α-carbonyl aldehydes, were obtained through a simple acid hydrolysis process and could serve as precursors for structurally diverse 2,3-difunctionalized benzofuran derivatives such as important 2-benzofurylquinoxalines, benzofuran-3-α-ketoesters and benzofuryl ynediones. This transformation features convenient operation, simple and commercially available starting materials, broad functional-group compatibility, and moderate to good reaction yields.
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Affiliation(s)
- Weigao Hu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Meng Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Guangbin Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
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11
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Watanabe K, Mino T, Ishikawa E, Masuda C, Yoshida Y, Sakamoto M. Hydrazone–Pd-catalyzed direct intermolecular reaction of o-alkynylphenols with allylic acetates. Org Biomol Chem 2018; 16:575-584. [DOI: 10.1039/c7ob02873c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The hydrazone–palladium catalyzed direct intermolecular reaction of o-alkynylphenols with allylic acetates gave the corresponding 2-substituted-3-allylbenzofuran derivatives at room temperature.
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Affiliation(s)
- Kohei Watanabe
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
| | - Takashi Mino
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
- Molecular Chirality Research Center
| | - Eri Ishikawa
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
| | - Chihiro Masuda
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
| | - Yasushi Yoshida
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
- Molecular Chirality Research Center
| | - Masami Sakamoto
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
- Molecular Chirality Research Center
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12
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Watanabe K, Mino T, Hatta C, Ishikawa E, Yoshida Y, Sakamoto M. Hydrazone-Cu-Catalyzed Suzuki-Miyaura-Type Reactions of Dibromoalkenes with Arylboronic Acids. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700535] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Kohei Watanabe
- Graduate School of Engineering; Chiba University; 1-33, Yayoi-cho, Inage-ku 263-8522 Chiba Japan
| | - Takashi Mino
- Graduate School of Engineering; Chiba University; 1-33, Yayoi-cho, Inage-ku 263-8522 Chiba Japan
- Molecular Chirality Research Center; Chiba University; 1-33, Yayoi-cho, Inage-ku 263-8522 Chiba Japan
| | - Chikako Hatta
- Graduate School of Engineering; Chiba University; 1-33, Yayoi-cho, Inage-ku 263-8522 Chiba Japan
| | - Eri Ishikawa
- Graduate School of Engineering; Chiba University; 1-33, Yayoi-cho, Inage-ku 263-8522 Chiba Japan
| | - Yasushi Yoshida
- Graduate School of Engineering; Chiba University; 1-33, Yayoi-cho, Inage-ku 263-8522 Chiba Japan
- Molecular Chirality Research Center; Chiba University; 1-33, Yayoi-cho, Inage-ku 263-8522 Chiba Japan
| | - Masami Sakamoto
- Graduate School of Engineering; Chiba University; 1-33, Yayoi-cho, Inage-ku 263-8522 Chiba Japan
- Molecular Chirality Research Center; Chiba University; 1-33, Yayoi-cho, Inage-ku 263-8522 Chiba Japan
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13
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Watanabe K, Mino T, Ishikawa E, Okano M, Ikematsu T, Yoshida Y, Sakamoto M, Sato K, Yoshida K. Synthesis of
o
‐Allyloxy(ethynyl)benzene Derivatives by Cu‐Catalyzed Suzuki–Miyaura‐Type Reaction and Their Transformations into Heterocyclic Compounds. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700217] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kohei Watanabe
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Takashi Mino
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Eri Ishikawa
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Miyu Okano
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Tatsuya Ikematsu
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Yasushi Yoshida
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Masami Sakamoto
- Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University 1–33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Kazuki Sato
- Department of Chemistry Graduate School of Science Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
| | - Kazuhiro Yoshida
- Molecular Chirality Research Center Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
- Department of Chemistry Graduate School of Science Chiba University 1‐33, Yayoi‐cho, Inage‐ku 263‐8522 Chiba Japan
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14
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Sheykhan M, Shafiee-Pour M, Abbasnia M. C–H Activation under the Guise of Diels–Alder Reaction: Annulation toward the Synthesis of Benzo[e]isoindole-1,3-diones. Org Lett 2017; 19:1270-1273. [DOI: 10.1021/acs.orglett.6b03757] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Mehdi Sheykhan
- Chemistry
Department, University of Guilan, P.O. Box 41335-1914, Rasht, Iran
| | - Maryam Shafiee-Pour
- Chemistry
Department, University of Guilan, P.O. Box 41335-1914, Rasht, Iran
| | - Masoumeh Abbasnia
- School
of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
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15
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Ke Z, Chit Tsui G, Peng XS, Yeung YY. Five-Membered Ring Systems. PROGRESS IN HETEROCYCLIC CHEMISTRY 2017. [DOI: 10.1016/b978-0-08-102310-5.00007-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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