1
|
McGhie L, Marotta A, Loftus PO, Seeberger PH, Funes-Ardoiz I, Molloy JJ. Photogeneration of α-Bimetalloid Radicals via Selective Activation of Multifunctional C1 Units. J Am Chem Soc 2024; 146:15850-15859. [PMID: 38805091 PMCID: PMC11177267 DOI: 10.1021/jacs.4c02261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/12/2024] [Accepted: 05/14/2024] [Indexed: 05/29/2024]
Abstract
Light-driven strategies that enable the chemoselective activation of a specific bond in multifunctional systems are comparatively underexplored in comparison to transition-metal-based technologies, yet desirable when considering the controlled exploration of chemical space. With the current drive to discover next-generation therapeutics, reaction design that enables the strategic incorporation of an sp3 carbon center, containing multiple synthetic handles for the subsequent exploration of chemical space would be highly enabling. Here, we describe the photoactivation of ambiphilic C1 units to generate α-bimetalloid radicals using only a Lewis base and light source to directly activate the C-I bond. Interception of these transient radicals with various SOMOphiles enables the rapid synthesis of organic scaffolds containing synthetic handles (B, Si, and Ge) for subsequent orthogonal activation. In-depth theoretical and mechanistic studies reveal the prominent role of 2,6-lutidine in forming a photoactive charge transfer complex and in stabilizing in situ generated iodine radicals, as well as the influential role of the boron p-orbital in the activation/weakening of the C-I bond. This simple and efficient methodology enabled expedient access to functionalized 3D frameworks that can be further derivatized using available technologies for C-B and C-Si bond activation.
Collapse
Affiliation(s)
- Lewis McGhie
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, Potsdam 14476, Germany
- Department
of Chemistry and Biochemistry, Freie Universität
Berlin, Berlin 14195, Germany
| | - Alessandro Marotta
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, Potsdam 14476, Germany
- Department
of Chemistry and Biochemistry, Freie Universität
Berlin, Berlin 14195, Germany
| | - Patrick O. Loftus
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, Potsdam 14476, Germany
| | - Peter H. Seeberger
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, Potsdam 14476, Germany
- Department
of Chemistry and Biochemistry, Freie Universität
Berlin, Berlin 14195, Germany
| | - Ignacio Funes-Ardoiz
- Department
of Chemistry, Instituto de Investigación Química de
la Universidad de La Rioja (IQUR), Universidad
de La Rioja Madre de Dios 53, Logroño 26004, Spain
| | - John J. Molloy
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, Potsdam 14476, Germany
| |
Collapse
|
2
|
Li Q, Liang XX, Zhang W, Han MY. Friedel-Crafts Reaction of Acylsilanes: Highly Chemoselective Synthesis of 1-Hydroxy-bis(indolyl)methanes and 1-Silyl-bis(indolyl)methanes Derivatives. Molecules 2023; 28:5685. [PMID: 37570655 PMCID: PMC10420641 DOI: 10.3390/molecules28155685] [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: 05/18/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
A novel double Friedel-Crafts reaction of acylsilanes in water is described. This strategy enables synthesis of bis(indolyl)methane derivatives with 1-hydroxy or 1-silyl substituents in moderate to high yield. Compared to the 1-silyl-bis(indolyl)methane derivatives from indole substrate, 1-hydroxy-bis(indolyl)methane derivatives were synthesized from the 5-hydroxyindole, and the hydrogen bonds in the 5-hydroxyindole play a crucial role in regulating the reaction selectivity.
Collapse
Affiliation(s)
| | | | | | - Man-Yi Han
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, China; (Q.L.); (X.-X.L.); (W.Z.)
| |
Collapse
|
3
|
Wu LJ, Yang LF, Li JH, Wang QA. Dicarbonylative benzannulation of 3-acetoxy-1,4-enynes with CO and silylboranes by Pd and Cu cooperative catalysis: one-step access to 3-hydroxyarylacylsilanes. Chem Commun (Camb) 2020; 56:1669-1672. [PMID: 31939456 DOI: 10.1039/c9cc09077k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A new, general Pd/Cu-cocatalysed dicarbonylative benzannulation of 3-acetoxy-1,4-enynes with CO and silylboranes is described. The method utilizes CO as both a one-carbon (C1) unit and an external addition functional reagent to achieve an unprecedented dicarbonylative benzannulation process, and represents a facile, efficient route to 3-hydroxyarylacylsilanes. Mechanistically, the silyl-Cu intermediate formed from CuF2 and silylboranes, and silyl-Pd intermediate generated by transmetallation are two key factors for successfully targeting the reaction and selectivity.
Collapse
Affiliation(s)
- Li-Jun Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
| | | | | | | |
Collapse
|
4
|
Cheng LJ, Mankad NP. Cu-Catalyzed Carbonylative Silylation of Alkyl Halides: Efficient Access to Acylsilanes. J Am Chem Soc 2019; 142:80-84. [PMID: 31851513 DOI: 10.1021/jacs.9b12043] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Cu-catalyzed carbonylative silylation of unactivated alkyl halides has been developed, enabling efficient synthesis of alkyl-substituted acylsilanes in high yield. A variety of functional groups are tolerated under the mild reaction conditions, and primary, secondary, and tertiary alkyl halides are all applicable. The practical utility of this method has been demonstrated in the synthesis of acylsilanes bearing different silyl groups as well as in situ reduction of a product to the corresponding α-hydroxylsilane in one pot. Mechanistic experiments indicate that a silylcopper intermediate activates alkyl halides by single electron transfer to form alkyl radical intermediates and that carbon-halogen bond cleavage is not involved in the rate-determining step.
Collapse
Affiliation(s)
- Li-Jie Cheng
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , United States
| | - Neal P Mankad
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , United States
| |
Collapse
|
5
|
Tatsumi K, Tanabe S, Tsuji Y, Fujihara T. Zinc-Catalyzed Synthesis of Acylsilanes Using Carboxylic Acids and a Silylborane in the Presence of Pivalic Anhydride. Org Lett 2019; 21:10130-10133. [DOI: 10.1021/acs.orglett.9b04151] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kenta Tatsumi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Sae Tanabe
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yasushi Tsuji
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tetsuaki Fujihara
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| |
Collapse
|
6
|
Zuo Z, Yang J, Huang Z. Cobalt-Catalyzed Alkyne Hydrosilylation and Sequential Vinylsilane Hydroboration with Markovnikov Selectivity. Angew Chem Int Ed Engl 2016; 55:10839-43. [PMID: 27479796 DOI: 10.1002/anie.201605615] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 07/12/2016] [Indexed: 01/15/2023]
Abstract
A pyridinebis(oxazoline) cobalt complex is a very efficient precatalyst for the hydrosilylation of terminal alkynes with Ph2 SiH2 , providing α-vinylsilanes with high (Markovnikov) regioselectivity and broad functional-group tolerance. The vinylsilane products can be further converted into geminal borosilanes through Markovnikov hydroboration with pinacolborane and a bis(imino)pyridine cobalt catalyst.
Collapse
Affiliation(s)
- Ziqing Zuo
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, 345 Lingling Road, Shanghai, 200032, China
| | - Ji Yang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, 345 Lingling Road, Shanghai, 200032, China
| | - Zheng Huang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, 345 Lingling Road, Shanghai, 200032, China.
| |
Collapse
|
7
|
Zuo Z, Yang J, Huang Z. Cobalt-Catalyzed Alkyne Hydrosilylation and Sequential Vinylsilane Hydroboration with Markovnikov Selectivity. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605615] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ziqing Zuo
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; 345 Lingling Road Shanghai 200032 China
| | - Ji Yang
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; 345 Lingling Road Shanghai 200032 China
| | - Zheng Huang
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; 345 Lingling Road Shanghai 200032 China
| |
Collapse
|
8
|
Kondo Y, Sasaki M, Kawahata M, Yamaguchi K, Takeda K. Enantioselective Synthesis of α-Silylamines by Meerwein–Ponndorf–Verley-Type Reduction of α-Silylimines by a Chiral Lithium Amide. J Org Chem 2014; 79:3601-9. [DOI: 10.1021/jo500441a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yasuhiro Kondo
- Department
of Synthetic Organic Chemistry, Institute of Biomedical and Health
Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - Michiko Sasaki
- Department
of Synthetic Organic Chemistry, Institute of Biomedical and Health
Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - Masatoshi Kawahata
- Pharmaceutical
Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
| | - Kentaro Yamaguchi
- Pharmaceutical
Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
| | - Kei Takeda
- Department
of Synthetic Organic Chemistry, Institute of Biomedical and Health
Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| |
Collapse
|
9
|
Endo K, Kurosawa F, Ukaji Y. Silver(I) Oxide-promoted Chemoselective Cross-coupling Reaction of (Diborylmethyl)trimethylsilane. CHEM LETT 2013. [DOI: 10.1246/cl.130643] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kohei Endo
- Division of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa University
- PRESTO, Japan Science and Technology Agency (JST)
| | - Fumiya Kurosawa
- Division of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa University
| | - Yutaka Ukaji
- Division of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa University
| |
Collapse
|
10
|
Cirriez V, Rasson C, Riant O. Synthesis of Acylsilanes by Copper(I)-Catalyzed Addition of Silicon Nucleophiles onto Acid Derivatives. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300621] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
11
|
Zhang HJ, Priebbenow DL, Bolm C. Acylsilanes: valuable organosilicon reagents in organic synthesis. Chem Soc Rev 2013; 42:8540-71. [DOI: 10.1039/c3cs60185d] [Citation(s) in RCA: 168] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
12
|
Chen B. 2-Thienyllithium. ENCYCLOPEDIA OF REAGENTS FOR ORGANIC SYNTHESIS 2010. [DOI: 10.1002/047084289x.rn01227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
|