1
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Lu XY, Qian YJ, Sun HL, Su MX, Wang ZZ, Jiang F, Zhou XY, Sun YX, Shi WL, Wan JR. Photoinduced decarboxylative germylation of α-fluoroacrylic acids: access to germylated monofluoroalkenes. Chem Commun (Camb) 2024; 60:6556-6559. [PMID: 38845407 DOI: 10.1039/d4cc02037e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Herein, a novel strategy is presented for the photoinduced decarboxylative and dehydrogenative cross-coupling of a wide range of α-fluoroacrylic acids with hydrogermanes. This methodology provides an efficient and robust approach for producing various germylated monofluoroalkenes with excellent stereoselectivity within a brief photoirradiation period. The feasibility of this reaction has been demonstrated through gram-scale reaction, conversion of germylated monofluoroalkenes, and modification of complex organic molecules.
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Affiliation(s)
- Xiao-Yu Lu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China.
| | - Yu-Jun Qian
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China.
| | - Hai-Lun Sun
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China.
| | - Meng-Xue Su
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China.
| | - Zi-Zhen Wang
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China.
| | - Fan Jiang
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China.
| | - Xin-Yue Zhou
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China.
| | - Yan-Xi Sun
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China.
| | - Wan-Li Shi
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China.
| | - Ji-Ru Wan
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China.
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2
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Zaitsev KV, Veshchitsky GA, Oprunenko YF, Kharcheva AV, Moiseeva AA, Gloriozov IP, Lermontova EK. 1,2-Bis(triazolyl)tetraphenyldigermanes: Synthesis, Structure and Properties. Chem Asian J 2023:e202300753. [PMID: 37886881 DOI: 10.1002/asia.202300753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 10/28/2023]
Abstract
Using the [3+2] cycloaddition reaction of [HC≡C-GePh2 -]2 (1) and a number of RCH2 N3 , this work described the synthesis of a series of novel heterocyclic digermanes, bitriazoles [1,4-C2 HN3 (CH2 R)GePh2 -]2 , 2-12 (R=Ph, p-Tol, p-C6 H4 NMe2 , p-C6 H4 OMe, p-C6 H4 Br, m-C6 H4 NO2 , 2-Naphth, CH2 -p-OC6 H4 CHO, CH2 -p-OC6 H4 COOMe, CH2 P(O)(OEt)2 , COOEt), difficult to produce by other methods. The structural peculiarities of these compounds were studied in detail by NMR spectroscopy and by XRD analysis (for 6, 9 and 10). The properties of 1-12 were studied by UV/vis and luminescence emission spectroscopy, electrochemistry and DFT calculations, indicating an effective conjugation in their molecules.
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Affiliation(s)
- Kirill V Zaitsev
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 3, 119991, Moscow, Russia
| | - Gleb A Veshchitsky
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 3, 119991, Moscow, Russia
| | - Yuri F Oprunenko
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 3, 119991, Moscow, Russia
| | - Anastasia V Kharcheva
- Department of Physics, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 2, 119991, Moscow, Russia
| | - Anna A Moiseeva
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 3, 119991, Moscow, Russia
| | - Igor P Gloriozov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 3, 119991, Moscow, Russia
| | - Elmira Kh Lermontova
- N.S. Kurnakov General and Inorganic Chemistry Institute, Russian Academy of Sciences, Leninskii prospect, 31, 119991, Moscow, Russia
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3
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Lin W, You L, Yuan W, He C. Cu-Catalyzed Enantioselective Hydrogermylation: Asymmetric Synthesis of Unnatural β-Germyl α-Amino Acids. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Weidong Lin
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Lijun You
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Wei Yuan
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Chuan He
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
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4
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Laglera-Gándara C, Ríos P, Fernández-de-Córdova FJ, Barturen M, Fernández I, Conejero S. σ-GeH and Germyl Cationic Pt(II) Complexes. Inorg Chem 2022; 61:20848-20859. [PMID: 36322561 PMCID: PMC9949701 DOI: 10.1021/acs.inorgchem.2c03186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The low electron count Pt(II) complexes [Pt(NHC')(NHC)][BArF] (where NHC is a N-heterocyclic carbene ligand and NHC' its metalated form) react with tertiary hydrogermanes HGeR3 at room temperature to generate the 14-electron platinum(II) germyl derivatives [Pt(GeR3)(NHC)2][BArF]. Low-temperature NMR studies allowed us to detect and characterize spectroscopically some of the σ-GeH intermediates [Pt(η2-HGeR3)(NHC')(NHC)][BArF] that evolve into the platinum-germyl species. One of these compounds has been characterized by X-ray diffraction studies, and the interaction of the H-Ge bond with the platinum center has been analyzed in detail by computational methods, which suggest that the main contribution is the donation of the H-Ge to a σ*(Pt-C) orbital, but backdonation from the platinum to the σ*(Ge-H) orbital is significant. Primary and secondary hydrogermanes also produce the corresponding platinum-germyl complexes, a result that contrasts with the reactivity observed with primary silanes, in which carbon-silicon bond-forming reactions have been reported. According to density functional theory calculations, the formation of Pt-Ge/C-H bonds is both kinetically and thermodynamically preferred over the competitive reaction pathway leading to Pt-H/C-Ge bonds.
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Affiliation(s)
- Carlos
J. Laglera-Gándara
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica, Centro de Innovación en Química Avanzada
(ORFEO-CINQA), CSIC and Universidad de Sevilla, Sevilla 41092, Spain
| | - Pablo Ríos
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica, Centro de Innovación en Química Avanzada
(ORFEO-CINQA), CSIC and Universidad de Sevilla, Sevilla 41092, Spain,
| | - Francisco José Fernández-de-Córdova
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica, Centro de Innovación en Química Avanzada
(ORFEO-CINQA), CSIC and Universidad de Sevilla, Sevilla 41092, Spain
| | - Marina Barturen
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica, Centro de Innovación en Química Avanzada
(ORFEO-CINQA), CSIC and Universidad de Sevilla, Sevilla 41092, Spain
| | - Israel Fernández
- Departamento
de Química Orgánica I y Centro de Innovación
en Química Avanzada (ORFEO-CINQA), facultad de Químicas, Universidad Complutense de Madrid, Madrid 28040, Spain,
| | - Salvador Conejero
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica, Centro de Innovación en Química Avanzada
(ORFEO-CINQA), CSIC and Universidad de Sevilla, Sevilla 41092, Spain,
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5
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Kazama K, Kurokawa R, Inoue K, Kinoshita H, Miura K. One-Pot Direct Synthesis of Siloles from 1-Bromo-2-silylethynylbenzenes or 1-Bromo-4-silyl-1,3-enynes. J Org Chem 2022; 87:10416-10421. [PMID: 35802630 DOI: 10.1021/acs.joc.2c00847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We propose one-pot synthesis of siloles from readily available starting materials. This methodology is practical for the preparation of multisubstituted siloles in good to excellent yields with complete regioselectivity. Sequential reactions, such as lithiation, silylation, and diisobutylaluminum-hydride-promoted cyclization, enable the preparation of the siloles. This transformation provides siloles through two efficient C-Si bond formations in one vessel.
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Affiliation(s)
- Koyo Kazama
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
| | - Rei Kurokawa
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
| | - Kei Inoue
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
| | - Hidenori Kinoshita
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
| | - Katsukiyo Miura
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
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6
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Kassamba S, Perez-Luna A, Ferreira F, Durandetti M. Modular access to substituted germoles by intramolecular germylzincation. Chem Commun (Camb) 2022; 58:3901-3904. [PMID: 35234232 DOI: 10.1039/d1cc07163g] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Intramolecular alkyne germylzincation giving access to a wide range of germoles is achieved from triarylhydrogermanes in the presence of diethylzinc and AIBN as radical initiator. The reaction proceeds through activation of the Ge-H bond, leading to a heteroarylzinc intermediate after cyclisation, which can then be involved in a post-functionalisation reaction. Our results show that only 5-endo-dig cyclizations occur, with benzogermoles being exclusively obtained.
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Affiliation(s)
- Seydou Kassamba
- Normandie Univ., UNIROUEN, INSA Rouen, CNRS, Laboratoire COBRA (UMR 6014 & FR 3038), 76000 Rouen, France.
| | - Alejandro Perez-Luna
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Franck Ferreira
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Muriel Durandetti
- Normandie Univ., UNIROUEN, INSA Rouen, CNRS, Laboratoire COBRA (UMR 6014 & FR 3038), 76000 Rouen, France.
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7
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Abstract
Metal catalysis has revolutionized synthetic chemistry, leading to entirely new, very efficient transformations, which enable access to complex functionalized molecules. One such new transformation method is the haloalkynylation reaction, in which both a halogen atom and an alkynyl unit are transferred to an unsaturated carbon‐carbon bond. This minireview summarizes the development of metal‐catalyzed haloalkynylation reactions since their beginning about a decade ago. So far, arynes, alkenes and alkynes have been used as unsaturated systems and the reactivities of these systems are summarized in individual chapters of the minireview. Especially, the last few years have witnessed a rapid development due to gold‐catalyzed reactions. Here, we discuss how the choice of the catalytic system influences the regio‐ and stereoselectivity of the addition.
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Affiliation(s)
- Mathis Kreuzahler
- Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstraße 7, 45117, Essen, Germany
| | - Gebhard Haberhauer
- Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstraße 7, 45117, Essen, Germany
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