1
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Peng PY, Zhang GS, Gong ML, Zhang JW, Liu XL, Gao D, Lin GQ, Li QH, Tian P. A practical preparation of bicyclic boronates via metal-free heteroatom-directed alkenyl sp 2-C‒H borylation. Commun Chem 2023; 6:176. [PMID: 37612464 PMCID: PMC10447525 DOI: 10.1038/s42004-023-00976-5] [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: 12/14/2022] [Accepted: 08/07/2023] [Indexed: 08/25/2023] Open
Abstract
Bicyclic boronates play critical roles in the discovery of functional materials and antibacterial agents, especially against deadly bacterial pathogens. Their practical and convenient preparation is in high demand but with great challenge. Herein, we report an efficient strategy for the preparation of bicyclic boronates through metal-free heteroatom-directed alkenyl sp2-C‒H borylation. This synthetic approach exhibits good functional group compatibility, and the corresponding boronates bearing halides, aryls, acyclic and cyclic frameworks are obtained with high yields (43 examples, up to 95% yield). Furthermore, a gram-scale experiment is conducted, and downstream transformations of the bicyclic boronates are pursued to afford natural products, drug scaffolds, and chiral hemiboronic acid catalysts.
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Affiliation(s)
- Pei-Ying Peng
- The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
- China-Thailand Joint Research Institute of Natural Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Gui-Shan Zhang
- The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
- China-Thailand Joint Research Institute of Natural Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Mei-Ling Gong
- The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
- China-Thailand Joint Research Institute of Natural Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Jian-Wei Zhang
- The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
- China-Thailand Joint Research Institute of Natural Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Xi-Liang Liu
- The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
- China-Thailand Joint Research Institute of Natural Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Dingding Gao
- The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
- China-Thailand Joint Research Institute of Natural Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Guo-Qiang Lin
- The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
- China-Thailand Joint Research Institute of Natural Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Qing-Hua Li
- The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China.
- China-Thailand Joint Research Institute of Natural Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China.
| | - Ping Tian
- The Research Center of Chiral Drugs, Shanghai Frontiers Science Center for TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China.
- China-Thailand Joint Research Institute of Natural Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China.
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2
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Wang H, Shao H, Das A, Dutta S, Chan HT, Daniliuc C, Houk KN, Glorius F. Dearomative ring expansion of thiophenes by bicyclobutane insertion. Science 2023; 381:75-81. [PMID: 37410837 DOI: 10.1126/science.adh9737] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 05/30/2023] [Indexed: 07/08/2023]
Abstract
Skeletal ring enlargement is gaining renewed interest in synthetic chemistry and has recently focused on insertion of one or two atoms. Strategies for heterocyclic expansion through small-ring insertion remain elusive, although they would lead to the efficient formation of bicyclic products. Here, we report a photoinduced dearomative ring enlargement of thiophenes by insertion of bicyclo[1.1.0]butanes to produce eight-membered bicyclic rings under mild conditions. The synthetic value, broad functional-group compatibility, and excellent chemo- and regioselectivity were demonstrated by scope evaluation and product derivatization. Experimental and computational studies point toward a photoredox-induced radical pathway.
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Affiliation(s)
- Huamin Wang
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster (WWU), 48149 Münster, Germany
| | - Huiling Shao
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - Ankita Das
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster (WWU), 48149 Münster, Germany
| | - Subhabrata Dutta
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster (WWU), 48149 Münster, Germany
| | - Hok Tsun Chan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - Constantin Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster (WWU), 48149 Münster, Germany
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster (WWU), 48149 Münster, Germany
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3
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Yin L, Zhu W, Xu Y, Xing J, Dou X. Rh-catalyzed ring-opening coupling of cyclic vinyl ethers with organometallic reagents. Org Biomol Chem 2023; 21:4429-4433. [PMID: 37191166 DOI: 10.1039/d3ob00579h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The rhodium-catalyzed ring-opening coupling of cyclic vinyl ethers, including 2,3-dihydrofuran and benzofuran, with organometallic reagents to give homoallylic alcohols and stilbenoids was reported. The suitable organometallic reagent for 2,3-dihydrofuran and benzofuran was found to be substrate-dependent, and a plausible mechanism involving different active organorhodium intermediates was proposed for these coupling reactions.
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Affiliation(s)
- Long Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing 211198, China.
| | - Wanjiang Zhu
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing 211198, China.
| | - Yang Xu
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing 211198, China.
| | - Junhao Xing
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing 211198, China.
| | - Xiaowei Dou
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing 211198, China.
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4
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Lu C, Lin Y, Wang M, Zhou J, Wang S, Jiang H, Kang K, Huang L. Nickel-Catalyzed Ring-Opening of Benzofurans for the Divergent Synthesis of ortho-Functionalized Phenol Derivatives. ACS Catal 2023. [DOI: 10.1021/acscatal.2c04442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Changhui Lu
- The State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yueping Lin
- The State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Minyan Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Jiaming Zhou
- The State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Shuo Wang
- The State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Huanfeng Jiang
- The State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Kai Kang
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Liangbin Huang
- The State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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5
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Shigeno M, Iseya Y, Kume R, Nozawa-Kumada K, Kondo Y. Palladium-Catalyzed Borylative Cyclizations of α-(2-Bromoaryl) Ketones to Form 1,2-Benzoxaborinines. Org Lett 2022; 24:7227-7231. [PMID: 36165769 DOI: 10.1021/acs.orglett.2c03033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we report that palladium catalyzes the borylative cyclization of α-(2-bromoaryl) ketones to afford 1,2-benzoxaborinines. The developed system is compatible with a variety of functionalities (Me, t-Bu, OMe, NMe2, F, Cl, CN, CF3, CO2Me, and heteroaryl groups) and is applicable to the synthesis of B-O-containing tri- and tetracyclic fused-ring compounds.
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Affiliation(s)
- Masanori Shigeno
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Yuto Iseya
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Ryotaro Kume
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Kanako Nozawa-Kumada
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Yoshinori Kondo
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
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6
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Ouadoudi O, Kaehler T, Çevik EG, Bolte M, Stöger B, Virovets A, Lerner HW, Wagner M. Late-stage derivatization of a (B,O) 2-doped perylene. Dalton Trans 2022; 51:13195-13198. [PMID: 35993410 DOI: 10.1039/d2dt02364d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Regioselective di- and tetrabrominations of the (B,O)2-perylene 1 afford derivatives 2-4. Despite their poor solubility, 2 and 4 could be used in Stille-type coupling reactions to introduce two CCMe (5) or four CC(p-C6H4tBu) substituents (6), respectively. The alkynylated derivatives show blue-green photoluminescence with appreciable quantum efficiencies.
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Affiliation(s)
- Omar Ouadoudi
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Straße 7, D-60438 Frankfurt (Main), Germany.
| | - Tanja Kaehler
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Straße 7, D-60438 Frankfurt (Main), Germany.
| | - Enes Görkem Çevik
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Straße 7, D-60438 Frankfurt (Main), Germany.
| | - Michael Bolte
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Straße 7, D-60438 Frankfurt (Main), Germany.
| | - Berthold Stöger
- X-ray Center, Technische Universität Wien, Getreidemarkt 9, AT-1060, Austria
| | - Alexander Virovets
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Straße 7, D-60438 Frankfurt (Main), Germany.
| | - Hans-Wolfram Lerner
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Straße 7, D-60438 Frankfurt (Main), Germany.
| | - Matthias Wagner
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt, Max-von-Laue-Straße 7, D-60438 Frankfurt (Main), Germany.
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7
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Balašova A, Žalubovskis R. Synthetic Methods toward Phosphacoumarins (microreview). Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-022-03089-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Iwasaki T, Ishiga W, Pal S, Nozaki K, Kambe N. Mechanistic Insight into Rh-Catalyzed C(sp 2)–O Bond Cleavage Applied to Cross-Coupling Reaction of Benzofurans with Aryl Grignard Reagents. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takanori Iwasaki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Wataru Ishiga
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 560-0871, Japan
| | - Shrinwantu Pal
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Nobuaki Kambe
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 560-0871, Japan
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9
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Osipov DV, Rashchepkina DА, Аrtemenko AА, Demidov OP, Osyanin VА. Nucleophilic Dearomatization of 3-nitrobenzofurans by the Action of 2-(1-arylethylidene)Malononitriles. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-03013-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Ouadoudi O, Kaehler T, Bolte M, Lerner HW, Wagner M. One tool to bring them all: Au-catalyzed synthesis of B,O- and B,N-doped PAHs from boronic and borinic acids. Chem Sci 2021; 12:5898-5909. [PMID: 34168815 PMCID: PMC8179653 DOI: 10.1039/d1sc00543j] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The isoelectronic replacement of C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C bonds with −BN+ bonds in polycyclic aromatic hydrocarbons (PAHs) is a widely used tool to prepare novel optoelectronic materials. Far less well explored are corresponding B,O-doped PAHs, although they have a similarly high application potential. We herein report on the modular synthesis of B,N- and B,O-doped PAHs through the [Au(PPh3)NTf2]-catalyzed 6-endo-dig cyclization of BN–H and BO–H bonds across suitably positioned C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C bonds in the key step. Readily available, easy-to-handle o-alkynylaryl boronic and borinic acids serve as starting materials, which are either cyclized directly or first converted into the corresponding aminoboranes and then cyclized. The reaction even tolerates bulky mesityl substituents on boron, which later kinetically protect the formed B,N/O-PAHs from hydrolysis or oxidation. Our approach is also applicable for the synthesis of rare doubly B,N/O-doped PAHs. Specifically, we prepared 1,2-B,E-naphthalenes and -anthracenes, 1,5-B2-2,6-E2-anthracenes (E = N, O) as well as B,O2-containing and unprecedented B,N,O-containing phenalenyls. Selected examples of these compounds have been structurally characterized by X-ray crystallography; their optoelectronic properties have been studied by cyclic voltammetry, electron spectroscopy, and quantum-chemical calculations. Using a new unsubstituted (B,O)2-perylene as the substrate for late-stage functionalization, we finally show that the introduction of two pinacolatoboryl (Bpin) substituents is possible in high yield and with perfect regioselectivity via an Ir-catalyzed C–H borylation approach. Singly and doubly B,E-doped PAHs were synthesized using a protocol that starts from easy-to-handle boronic and borinic acids and offers the possibility to choose between the preparation of B,O- and B,N-PAHs in the final reaction step.![]()
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Affiliation(s)
- Omar Ouadoudi
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt Max-von-Laue-Straße 7 D-60438 Frankfurt (Main) Germany
| | - Tanja Kaehler
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt Max-von-Laue-Straße 7 D-60438 Frankfurt (Main) Germany
| | - Michael Bolte
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt Max-von-Laue-Straße 7 D-60438 Frankfurt (Main) Germany
| | - Hans-Wolfram Lerner
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt Max-von-Laue-Straße 7 D-60438 Frankfurt (Main) Germany
| | - Matthias Wagner
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt Max-von-Laue-Straße 7 D-60438 Frankfurt (Main) Germany
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11
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Kaga A, Iida H, Tsuchiya S, Saito H, Nakano K, Yorimitsu H. Aromatic Metamorphosis of Thiophenes by Means of Desulfurative Dilithiation. Chemistry 2021; 27:4567-4572. [PMID: 33349986 DOI: 10.1002/chem.202005223] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/16/2020] [Indexed: 12/24/2022]
Abstract
A new mode of aromatic metamorphosis has been developed, which allows thiophenes and their benzo-fused derivatives to be converted to a variety of exotic heteroles. This transformation involves 1) the efficient generation of key 1,4-dianions by means of desulfurative dilithiation with lithium powder and 2) the subsequent trapping of the dianions with heteroatom electrophiles in a one-pot manner. Via the desulfurative dilithiation, the sulfur atoms of thiophenes are replaced also with a carbon-carbon double bond or a 1,2-phenylene for the construction of benzene rings.
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Affiliation(s)
- Atsushi Kaga
- Department of Chemistry, Graduate School of Science, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hirokazu Iida
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Shun Tsuchiya
- Department of Chemistry, Graduate School of Science, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hayate Saito
- Department of Chemistry, Graduate School of Science, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Koji Nakano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Sakyo-ku, Kyoto, 606-8502, Japan
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12
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Zhou J, Li T, Li M, Li C, Hu X, Jin L, Sun N, Hu B, Shen Z. FeCl
2
‐Catalyzed Direct C
2
‐Benzylation of Benzofurans with Diarylmethanes via Cross Dehydrogenative Coupling. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jiacheng Zhou
- College of Chemical Engineering Zhejiang University of Technology P. R. China
| | - Tianci Li
- College of Chemical Engineering Zhejiang University of Technology P. R. China
| | - Meichao Li
- College of Chemical Engineering Zhejiang University of Technology P. R. China
| | - Chunmei Li
- College of Chemical Engineering Zhejiang University of Technology P. R. China
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University P. R. China
| | - Xinquan Hu
- College of Chemical Engineering Zhejiang University of Technology P. R. China
| | - Liqun Jin
- College of Chemical Engineering Zhejiang University of Technology P. R. China
| | - Nan Sun
- College of Chemical Engineering Zhejiang University of Technology P. R. China
| | - Baoxiang Hu
- College of Chemical Engineering Zhejiang University of Technology P. R. China
| | - Zhenlu Shen
- College of Chemical Engineering Zhejiang University of Technology P. R. China
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13
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Affiliation(s)
- Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science Kyoto University Kyoto Japan
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14
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Wang K, Jiang C, Zhang Z, Han C, Wang X, Li Y, Chen K, Zhao J. Cut and sew: benzofuran-ring-opening enabled cyclopentenone ring formation. Chem Commun (Camb) 2020; 56:12817-12820. [PMID: 32966388 DOI: 10.1039/d0cc05271j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A facile approach to the fully substituted cyclopentenones involving an unprecedented benzofuran-ring-opening is described. The cleavage of a benzofuran endocyclic C2-O bond proceeded smoothly in the absence of any transition metal catalyst or highly reactive organometallic reagent. Such benzofuran-ring-opening is delicately incorporated into an acid-catalyzed cascade process, orchestrating a novel synthetic strategy for complex cyclopentenones with excellent yields and diastereoselectivities.
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Affiliation(s)
- Kai Wang
- Institute of Advanced Synthesis, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University (NPU), Xi'an 710072, Shaanxi, China.
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15
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Kaga A, Nogi K, Yorimitsu H. Synthesis of N-Alkyl and N-H-Carbazoles through S N Ar-Based Aminations of Dibenzothiophene Dioxides. Chemistry 2019; 25:14780-14784. [PMID: 31553094 DOI: 10.1002/chem.201903916] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/24/2019] [Indexed: 12/24/2022]
Abstract
Alkyl amines have become available for the synthesis of diverse N-alkyl carbazoles through twofold SN Ar aminations of dibenzothiophene dioxides by using alkali metal bases. Of particular importance is the choice of counter cations on alkali metal bases, that is, i) the use of Li base for the efficient intermolecular reaction and ii) the sequential addition of heavier alkali metal bases (Na, K, or Cs) to promote intramolecular cyclization in a one-pot manner. This protocol also enables the cascade synthesis of N-H-carbazoles by using 2-phenylethylamine by removal of the 2-phenethyl group from N-(2-phenethyl) carbazoles in a single operation.
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Affiliation(s)
- Atsushi Kaga
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Keisuke Nogi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
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16
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Zhou Y, Lin L, Wang Y, Zhu J, Song Q. Cu-Catalyzed Aromatic Metamorphosis of 3-Aminoindazoles. Org Lett 2019; 21:7630-7634. [PMID: 31503499 DOI: 10.1021/acs.orglett.9b02933] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We present a novel Cu-catalyzed aromatic metamorphosis of 3-aminoindazoles via oxidative cleavage of two C-N bonds of 3-aminoindazoles. This unprecedented reactivity of 3-aminoindazoles allows one to forge diverse nitrile-containing triphenylenes in decent yields via generation of the cyano group in situ. The current study reveals that 3-aminoindazoles could be harnessed as radical precursors via oxidative denitrogenation, the reaction mechanism of which was supported by density functional theory calculations.
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Affiliation(s)
- Yao Zhou
- Institute of Next Generation Matter Transformation , College of Materials Science & Engineering at Huaqiao University , 668 Jimei Blvd. , Xiamen , Fujian 361021 , People's Republic of China
| | - Lu Lin
- College of Chemistry and Chemical Engineering at Xiamen University , Xiamen , Fujian 361005 , People's Republic of China
| | - Ya Wang
- Institute of Next Generation Matter Transformation , College of Materials Science & Engineering at Huaqiao University , 668 Jimei Blvd. , Xiamen , Fujian 361021 , People's Republic of China
| | - Jun Zhu
- College of Chemistry and Chemical Engineering at Xiamen University , Xiamen , Fujian 361005 , People's Republic of China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation , College of Materials Science & Engineering at Huaqiao University , 668 Jimei Blvd. , Xiamen , Fujian 361021 , People's Republic of China.,Key Laboratory of Molecule Synthesis and Function Discovery , College of Chemistry at Fuzhou University , Fuzhou , Fujian 350108 , People's Republic of China
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17
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Saito H, Yorimitsu H. Ring-expanding and Ring-opening Transformations of Benzofurans and Indoles with Introducing Heteroatoms. CHEM LETT 2019. [DOI: 10.1246/cl.190393] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hayate Saito
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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18
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Matt C, Kölblin F, Streuff J. Reductive C–O, C–N, and C–S Cleavage by a Zirconium Catalyzed Hydrometalation/β-Elimination Approach. Org Lett 2019; 21:6983-6988. [DOI: 10.1021/acs.orglett.9b02572] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Christof Matt
- Albert-Ludwigs-Universität Freiburg, Institut für Organische Chemie, Albertstr. 21, 79104 Freiburg, Germany
| | - Frederic Kölblin
- Albert-Ludwigs-Universität Freiburg, Institut für Organische Chemie, Albertstr. 21, 79104 Freiburg, Germany
| | - Jan Streuff
- Albert-Ludwigs-Universität Freiburg, Institut für Organische Chemie, Albertstr. 21, 79104 Freiburg, Germany
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19
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Tsuchiya S, Saito H, Nogi K, Yorimitsu H. Aromatic Metamorphosis of Indoles into 1,2-Benzazaborins. Org Lett 2019; 21:3855-3860. [PMID: 31063386 DOI: 10.1021/acs.orglett.9b01353] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Among the plethora of aromatic compounds, indoles represent a privileged class of substructures that is ubiquitous in natural products and pharmaceuticals. While numerous exocyclic functionalizations of indoles have provided access to a variety of useful derivatives, endocyclic transformations involving the cleavage of the C2-N bond remain challenging due to the high aromaticity and strength of this bond in indoles. Herein, we report the "aromatic metamorphosis" of indoles into 1,2-benzazaborins via the insertion of boron into the C2-N bond. This endocyclic insertion consists of a reductive ring-opening using lithium metal and a subsequent trapping of the resulting dianionic species with organoboronic esters. Considering that 1,2-azaborins have attracted increasing academic and industrial attention as BN isosteres of benzene, the counterintuitive aromatic metamorphosis presented herein can feasibly be expected to substantially advance the promising chemistry of 1,2-azaborins.
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Affiliation(s)
- Shun Tsuchiya
- Department of Chemistry, Graduate School of Science , Kyoto University , Sakyo-ku, Kyoto 606-8502 , Japan
| | - Hayate Saito
- Department of Chemistry, Graduate School of Science , Kyoto University , Sakyo-ku, Kyoto 606-8502 , Japan
| | - Keisuke Nogi
- Department of Chemistry, Graduate School of Science , Kyoto University , Sakyo-ku, Kyoto 606-8502 , Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science , Kyoto University , Sakyo-ku, Kyoto 606-8502 , Japan
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20
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Perego LA, Wagschal S, Grüber R, Fleurat‐Lessard P, El Kaïm L, Grimaud L. From Benzofurans to Indoles: Palladium‐Catalyzed Reductive Ring‐Opening and Closure
via
β‐Phenoxide Elimination. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Luca A. Perego
- PASTEUR, Département de chimie, École normale supérieure, PSL UniversitySorbonne Université, CNRS 75005 Paris France
- Institut de Recherche de Chimie ParisCNRS-Chimie ParisTech, UMR 8247 11 rue P. et M. Curie 75005 Paris France
| | - Simon Wagschal
- Laboratoire LSO ENSTA-Polytechnique-CNRS, UMR 7652Ecole Nationale Supérieure de Techniques Avancées 828 Bd des Maréchaux 91128 Palaiseau France
- current address: Discovery, Product Development and SupplyJanssen Pharmaceutica Hochstrasse 201 8200 Schaffhausen Switzerland
| | - Raymond Grüber
- Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1Laboratoire de Chimie UMR 5182 46 Allée d'Italie 69364 Lyon France
- Institut Francilien des Sciences AppliquéesUniversité Paris-Est, UPEM 5 boulevard Descartes 77454 Champs-sur-Marne Cedex 02 France
| | - Paul Fleurat‐Lessard
- Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1Laboratoire de Chimie UMR 5182 46 Allée d'Italie 69364 Lyon France
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR-CNRS 6302Université de Bourgogne Franche-Comté 9 Avenue Alain Savary 21078 Dijon France
| | - Laurent El Kaïm
- Laboratoire LSO ENSTA-Polytechnique-CNRS, UMR 7652Ecole Nationale Supérieure de Techniques Avancées 828 Bd des Maréchaux 91128 Palaiseau France
| | - Laurence Grimaud
- PASTEUR, Département de chimie, École normale supérieure, PSL UniversitySorbonne Université, CNRS 75005 Paris France
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21
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Xu‐Xu Q, Liu Q, Zhang X, You S. Copper‐Catalyzed Ring Opening of Benzofurans and an Enantioselective Hydroamination Cascade. Angew Chem Int Ed Engl 2018; 57:15204-15208. [DOI: 10.1002/anie.201809003] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 09/06/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Qing‐Feng Xu‐Xu
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Qiang‐Qiang Liu
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Xiao Zhang
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Shu‐Li You
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
- Collaborative Innovation Center of, Chemical Science and Engineering Tianjin 300072 China
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22
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Xu‐Xu Q, Liu Q, Zhang X, You S. Copper‐Catalyzed Ring Opening of Benzofurans and an Enantioselective Hydroamination Cascade. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Qing‐Feng Xu‐Xu
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Qiang‐Qiang Liu
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Xiao Zhang
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Shu‐Li You
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
- Collaborative Innovation Center of, Chemical Science and Engineering Tianjin 300072 China
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23
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Saito H, Nogi K, Yorimitsu H. Copper-Catalyzed Ring-Opening Silylation of Benzofurans with Disilane. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Hayate Saito
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
| | - Keisuke Nogi
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
| | - Hideki Yorimitsu
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
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24
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Saito H, Nogi K, Yorimitsu H. Copper-Catalyzed Ring-Opening Silylation of Benzofurans with Disilane. Angew Chem Int Ed Engl 2018; 57:11030-11034. [PMID: 29968953 DOI: 10.1002/anie.201806237] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Hayate Saito
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
| | - Keisuke Nogi
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
| | - Hideki Yorimitsu
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
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25
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Zhao WT, Lu ZQ, Zheng H, Xue XS, Zhao D. Rhodium-Catalyzed 2-Arylphenol-Derived Six-Membered Silacyclization: Straightforward Access toward Dibenzooxasilines and Silicon-Containing Planar Chiral Metallocenes. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01992] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wen-Tao Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, People’s Republic of China
| | - Zhuo-Qun Lu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, People’s Republic of China
| | - Hanliang Zheng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, People’s Republic of China
| | - Xiao-Song Xue
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, People’s Republic of China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, People’s Republic of China
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