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Tsuji S, Tokitoh N, Yamada H, Mizuhata Y. The Reduction of Metallabenzenes: Different Scenarios Highly Dependent on the Central Group 14 Elements, Si vs. Ge. Chem Asian J 2024; 19:e202300945. [PMID: 38014723 DOI: 10.1002/asia.202300945] [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: 10/29/2023] [Revised: 11/26/2023] [Accepted: 11/27/2023] [Indexed: 11/29/2023]
Abstract
In order to synthesize a silabenzenyl anion, in which the anionic carbon atom of a phenyl anion was replaced with a silicon atom, the reductive dearylation reaction of 1-Tbt-2-tert-butyl-silabenzene (Tbt=2,4,6-tris[bis(trimethylsilyl)methyl]phenyl) with KC8 was attempted. Unexpectedly, this reaction resulted in the formation of a dianion species without the elimination of the Tbt group. This is totally different from the reactions of Tbt-substituted germa- or stannabenzene with KC8 , which resulted in the formation of the corresponding heavy analogues of phenyl anion, together with the elimination of Tbt group. Experimental and theoretical investigation revealed that one of the protons of the o-benzyl positions of the Tbt group was abstracted by the negatively charged silicon atom of an in-situ generated intermediate. Compared with the previously reported germanium system, the contrasting results indicate that the central heavy group 14 element has a great influence on the elimination step of the Tbt group.
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Affiliation(s)
- Shingo Tsuji
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
- Integrated Research Consortium on Chemical Sciences, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Hiroko Yamada
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Yoshiyuki Mizuhata
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
- Integrated Research Consortium on Chemical Sciences, Gokasho, Uji, Kyoto, 611-0011, Japan
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Fujimori S, Mizuhata Y, Tokitoh N. A Mixed‐Anion System Consisting of a Germyl Anion and Anions Delocalized on Conjugated Carbon Ring Skeletons. Chemistry 2019; 25:6284-6289. [DOI: 10.1002/chem.201900699] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Shiori Fujimori
- Institute for Chemical ResearchKyoto University Gokasho Uji Kyoto 611-0011 Japan
| | - Yoshiyuki Mizuhata
- Institute for Chemical ResearchKyoto University Gokasho Uji Kyoto 611-0011 Japan
- Integrated Research Consortium on Chemical Sciences Gokasho Uji Kyoto 611-0011 Japan
| | - Norihiro Tokitoh
- Institute for Chemical ResearchKyoto University Gokasho Uji Kyoto 611-0011 Japan
- Integrated Research Consortium on Chemical Sciences Gokasho Uji Kyoto 611-0011 Japan
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Mizuhata Y, Fujimori S, Sasamori T, Tokitoh N. Germabenzenylpotassium: A Germanium Analogue of a Phenyl Anion. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700801] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yoshiyuki Mizuhata
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
| | - Shiori Fujimori
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
| | - Takahiro Sasamori
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
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Mizuhata Y, Fujimori S, Sasamori T, Tokitoh N. Germabenzenylpotassium: A Germanium Analogue of a Phenyl Anion. Angew Chem Int Ed Engl 2017; 56:4588-4592. [DOI: 10.1002/anie.201700801] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Yoshiyuki Mizuhata
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
| | - Shiori Fujimori
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
| | - Takahiro Sasamori
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
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Märkl G, Schlosser W. 1,4-Di-tert-butyl-2,6-bis(trimethylsilyl)silabenzene, the First Silabenzene Stable in Solution at −100°C. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/anie.198809631] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Jutzi P, Meyer M, Reisenauer HP, Maier G. Zur kinetischen Stabilisierung von Silabenzol: Matrix-Isolierung und Charakterisierung von 2,4,6-Tris(trialkylsilyl)-substituiertem 1-tert-Butyl-1-silabenzol. ACTA ACUST UNITED AC 1989. [DOI: 10.1002/cber.19891220703] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Märkl G, Schlosser W. 1,4-Di-tert-butyl-2,6-bis(trimethylsilyl)silabenzol, das erste in Lösung bis – 100°C stabile Silabenzol. Angew Chem Int Ed Engl 1988. [DOI: 10.1002/ange.19881000741] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wiberg N, Schurz K, Fischer G. Notiz zur Reaktivität des Silaethens Me2SiC(SiMe3)2: Regiospezifität der Diels-Alder-Reaktionen mit Isopren und Piperylen. ACTA ACUST UNITED AC 1986. [DOI: 10.1002/cber.19861191126] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Schulz R, Schweig A, M�rkl VG, Rudnick D. 1,4-Dialkylgermabenzole - Erzeugung und Nachweis in der Gasphase. ACTA ACUST UNITED AC 1982. [DOI: 10.1002/anie.198205230] [Citation(s) in RCA: 66] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Wiberg N, Preiner G, Schieda O, Fischer G. Erzeugung und Nachweis des Silaethens Me2SiC(SiMe3)2: Thermischer Zerfall von (Me3Si)2(Me2XSi)Cli (X z. B. Hal, OR, SR). ACTA ACUST UNITED AC 1981. [DOI: 10.1002/cber.19811141105] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Klingebiel U, Pohlmann S, Werner P. Reaktionen und Verkn�pfungen von 1,2-Diaza-3-sila-5-cyclopentenen. Z Anorg Allg Chem 1981. [DOI: 10.1002/zaac.19814821107] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Clegg W, Klingebiel U, Pohlmann S, Sheldrick GM, Werner P. Ein 2,3,9,10-Tetraaza-1,6,8,12-tetrasiladispiro[4.1.4.1]dodeca-3, 10-dien durch Dimerisierung eines Heterocyclus mit exocyclischer SiC-Doppelbindung. Angew Chem Int Ed Engl 1981. [DOI: 10.1002/ange.19810930410] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Clegg W, Klingebiel U, Sheldrick GM, Werner P. Synthese und Kristallstruktur eines dimeren 1,2-Diaza-3-sila-3,5-cyclopentadiens. Angew Chem Int Ed Engl 1981. [DOI: 10.1002/ange.19810930411] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Neemann J, Klingebiel U. Addition von Silicenium-Yliden an konjugierte Doppelbindungen. European J Org Chem 1980. [DOI: 10.1002/jlac.198019801208] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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1.4-di-tert.butyl-germabenzol-erzeugung und abfangreaktionen germabenzol- und 1.2-dihydrogermabenzol-dimere. Tetrahedron Lett 1980. [DOI: 10.1016/s0040-4039(00)92731-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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