1
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Hayashi D, Tsuda T, Shintani R. Palladium-Catalyzed Skeletal Rearrangement of Substituted 2-Silylaryl Triflates via 1,5-C-Pd/C-Si Bond Exchange. Angew Chem Int Ed Engl 2023; 62:e202313171. [PMID: 37935641 DOI: 10.1002/anie.202313171] [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: 09/05/2023] [Revised: 11/05/2023] [Accepted: 11/07/2023] [Indexed: 11/09/2023]
Abstract
A palladium-catalyzed skeletal rearrangement of 2-(2-allylarylsilyl)aryl triflates has been developed to give highly fused tetrahydrophenanthrosilole derivatives via unprecedented 1,5-C-Pd/C-Si bond exchange. The reaction pathways can be switched toward 4-membered ring-forming C(sp2 )-H alkylation by tuning the reaction conditions to give completely different products, fused dihydrodibenzosilepin derivatives, from the same starting materials. The inspection of the reaction conditions revealed the importance of carboxylates in promoting the C-Pd/C-Si bond exchange.
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Affiliation(s)
- Daigo Hayashi
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Tomohiro Tsuda
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Ryo Shintani
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
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2
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Lee D, Shintani R. Palladium-catalyzed synthesis of 4-sila-4 H-benzo[ d][1,3]oxazines by intramolecular Hiyama coupling. Chem Sci 2023; 14:4114-4119. [PMID: 37063809 PMCID: PMC10094166 DOI: 10.1039/d2sc06425a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
A palladium-catalyzed synthesis of 4-sila-4H-benzo[d][1,3]oxazines, silicon-switched analogs of biologically relevant 4H-benzo[d][1,3]oxazines, was developed by the intramolecular Hiyama coupling of 3-amido-2-(arylsilyl)aryl triflates.
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Affiliation(s)
- Donghyeon Lee
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan
| | - Ryo Shintani
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University Suita Osaka 565-0871 Japan
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3
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Iwata T, Kumagai S, Yoshinaga T, Hanada M, Shiota Y, Yoshizawa K, Shindo M. Quadruple Role of Pd Catalyst in Domino Reaction Involving Aryl to Alkyl 1,5-Pd Migration to Access 1,9-Bridged Triptycenes. Chemistry 2021; 27:11548-11553. [PMID: 34125459 DOI: 10.1002/chem.202101728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Indexed: 12/21/2022]
Abstract
A Pd-catalyzed domino reaction of 1,8,13-tribromo-9-methoxytriptycenes is reported. Under conventional Suzuki coupling conditions, the triptycenes underwent multiple transformations to give 1,9-bridged triptycenes. Based on mechanistic investigations, a single Pd catalyst functions as Pd0 , PdII and PdIV species to catalyze four distinct processes: (1) aryl to alkyl 1,5-Pd migration, (2) intramolecular arylation, (3) homocoupling of phenylboronic acid and (4) Suzuki coupling. DFT calculations revealed that 1,5-Pd migration likely proceeds via both concerted PdII and stepwise PdIV routes. Asymmetric synthesis of the chiral triptycenes, as well as optical resolution, and further transformation are also reported.
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Affiliation(s)
- Takayuki Iwata
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Satoru Kumagai
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Tatsuro Yoshinaga
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Masato Hanada
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
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4
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Chen S, Mu D, Mai PL, Ke J, Li Y, He C. Enantioselective construction of six- and seven-membered triorgano-substituted silicon-stereogenic heterocycles. Nat Commun 2021; 12:1249. [PMID: 33623025 PMCID: PMC7902825 DOI: 10.1038/s41467-021-21489-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 01/25/2021] [Indexed: 01/06/2023] Open
Abstract
The exploitation of chirality at silicon in asymmetric catalysis is one of the most intriguing and challenging tasks in synthetic chemistry. In particular, construction of enantioenriched mediem-sized silicon-stereogenic heterocycles is highly attractive, given the increasing demand for the synthesis of novel functional-materials-oriented silicon-bridged compounds. Here, we report a rhodium-catalyzed enantioselective construction of six- and seven-membered triorgano-substituted silicon-stereogenic heterocycles. This process undergoes a direct dehydrogenative C-H silylation, giving access to a wide range of triorgano-substituted silicon-stereogenic heterocycles in good to excellent yields and enantioselectivities, that significantly enlarge the chemical space of the silicon-centered chiral molecules. Further elaboration of the chiral monohydrosilane product delivers various corresponding tetraorgano-substituted silicon-stereogenic heterocycles without the loss of enantiopurity. These silicon-bridged heterocycles exhibit bright blue fluorescence, which would have potential application prospects in organic optoelectronic materials.
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Affiliation(s)
- Shuyou Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Delong Mu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Pei-Lin Mai
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Jie Ke
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Yingzi Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Chuan He
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, China.
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5
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Tsuda T, Choi SM, Shintani R. Palladium-Catalyzed Synthesis of Dibenzosilepin Derivatives via 1,n-Palladium Migration Coupled with anti-Carbopalladation of Alkyne. J Am Chem Soc 2021; 143:1641-1650. [DOI: 10.1021/jacs.0c12453] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomohiro Tsuda
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Seung-Min Choi
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Ryo Shintani
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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6
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Tsuda T, Kawakami Y, Choi S, Shintani R. Palladium‐Catalyzed Synthesis of Benzophenanthrosilines by C−H/C−H Coupling through 1,4‐Palladium Migration/Alkene Stereoisomerization. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tomohiro Tsuda
- Division of ChemistryDepartment of Materials Engineering ScienceGraduate School of Engineering ScienceOsaka University Toyonaka, Osaka 560-8531 Japan
| | - Yuka Kawakami
- Division of ChemistryDepartment of Materials Engineering ScienceGraduate School of Engineering ScienceOsaka University Toyonaka, Osaka 560-8531 Japan
| | - Seung‐Min Choi
- Division of ChemistryDepartment of Materials Engineering ScienceGraduate School of Engineering ScienceOsaka University Toyonaka, Osaka 560-8531 Japan
| | - Ryo Shintani
- Division of ChemistryDepartment of Materials Engineering ScienceGraduate School of Engineering ScienceOsaka University Toyonaka, Osaka 560-8531 Japan
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7
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Tsuda T, Kawakami Y, Choi SM, Shintani R. Palladium-Catalyzed Synthesis of Benzophenanthrosilines by C-H/C-H Coupling through 1,4-Palladium Migration/Alkene Stereoisomerization. Angew Chem Int Ed Engl 2020; 59:8057-8061. [PMID: 31997528 DOI: 10.1002/anie.202000217] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Indexed: 01/24/2023]
Abstract
A new and efficient synthesis of 8H-benzo[e]phenanthro[1,10-bc]silines from 2-((2-(arylethynyl)aryl)silyl)aryl triflates under palladium catalysis has been developed. The reaction mechanism was experimentally investigated and a catalytic cycle involving C-H/C-H coupling through a new mode of 1,4-palladium migration with concomitant alkene stereoisomerization is proposed.
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Affiliation(s)
- Tomohiro Tsuda
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Yuka Kawakami
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Seung-Min Choi
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Ryo Shintani
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
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8
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Yakiyama Y, Hishikawa S, Sakurai H. Synthesis of C 70-fragment buckybowls bearing alkoxy substituents. Beilstein J Org Chem 2020; 16:681-690. [PMID: 32362946 PMCID: PMC7176931 DOI: 10.3762/bjoc.16.66] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/02/2020] [Indexed: 01/06/2023] Open
Abstract
Buckybowls bearing a C70 fragment having two alkoxy groups were synthesized and their structural and optical properties were investigated by single crystal X-ray analysis and UV-vis spectroscopy. In the synthesis of dioxole derivative 5b, the regioisomer 5c was also produced. The yield of 5c was increased by increasing the reaction temperature, indicating that the rearrangement might involve the equilibrium between the Pd(IV) intermediates through C-H bond activation.
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Affiliation(s)
- Yumi Yakiyama
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shota Hishikawa
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hidehiro Sakurai
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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9
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Han J, Qin Y, Ju C, Zhao D. Divergent Synthesis of Vinyl‐, Benzyl‐, and Borylsilanes: Aryl to Alkyl 1,5‐Palladium Migration/Coupling Sequences. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914740] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jie‐Lian Han
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University 94 Weijin Road Tianjin 300071 China
| | - Ying Qin
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University 94 Weijin Road Tianjin 300071 China
| | - Cheng‐Wei Ju
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University 94 Weijin Road Tianjin 300071 China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University 94 Weijin Road Tianjin 300071 China
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10
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Han JL, Qin Y, Ju CW, Zhao D. Divergent Synthesis of Vinyl-, Benzyl-, and Borylsilanes: Aryl to Alkyl 1,5-Palladium Migration/Coupling Sequences. Angew Chem Int Ed Engl 2020; 59:6555-6560. [PMID: 31981459 DOI: 10.1002/anie.201914740] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/19/2019] [Indexed: 12/31/2022]
Abstract
Organosilicon compounds have been extensively utilized both in industry and academia. Studies on the syntheses of diverse organosilanes is highly appealing. Through-space metal/hydrogen shifts allow functionalization of C-H bonds at a remote site, which are otherwise difficult to achieve. However, until now, an aryl to alkyl 1,5-palladium migration process seems to have not been presented. Reported herein is the remote olefination, arylation, and borylation of a methyl group on silicon to access diverse vinyl-, benzyl-, and borylsilanes, constituting a unique C(sp3 )-H transformation based on a 1,5-palladium migration process.
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Affiliation(s)
- Jie-Lian Han
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Ying Qin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Cheng-Wei Ju
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
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11
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Dong X, Wang H, Liu H, Wang F. Recent advances in transition metal migration involving reactions. Org Chem Front 2020. [DOI: 10.1039/d0qo00558d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this review, various types of metal-migration involved methodologies, including palladium, rhodium, iron, cobalt, iridium, chromium, nickel, platinum, are summarized and demonstrated elaborately for giving a better access to this field.
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Affiliation(s)
- Xu Dong
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- China
| | - Hui Wang
- Shandong Jincheng Kerui Chemical Co
- Ltd
- Zibo 255100
- P.R. China
| | - Hui Liu
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- China
| | - Fagang Wang
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- China
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12
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Yamaguchi E, Kashima Y, Itoh A. Single-Electron-Transfer-Initiated Sequential Direct Arylation Reaction of Pyrrole with Aryl Diazonium Salts. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201800738] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Eiji Yamaguchi
- Gifu Pharmaceutical University; 1-25-4, Daigaku-nishi Gifu 501-1196
| | - Yayoi Kashima
- Gifu Pharmaceutical University; 1-25-4, Daigaku-nishi Gifu 501-1196
| | - Akichika Itoh
- Gifu Pharmaceutical University; 1-25-4, Daigaku-nishi Gifu 501-1196
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13
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Shintani R. Catalytic Asymmetric Synthesis of Silicon-Stereogenic Compounds by Enantioselective Desymmetrization of Prochiral Tetraorganosilanes. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.1163] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ryo Shintani
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
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