Metallacyclobutadienes: Intramolecular Rearrangement from Kinetic to Thermodynamic Isomers
Abstract: Metallacyclobutadienes (MCBDs) are key intermediates of alkyne metathesis reactions. There are in principle two isomerization pathway from kinetic to thermodynamic MCBDs, intermolecular and intramolecular. However, systems that simultaneously isolate two kinds of MCBD isomers have not been achieved, thus restricting the mechanistic studies of the isomerization. Here the reactivity of a metallapentalyne that contains an M≡C bond within the aromatic ring, with alkynes to afford a series of MCBD‐fused metallapentalenes is studied. In some cases, both kinetic and thermodynamic products are isolated in the same system, which has never been observed in previous MCBD reactions. Furthermore, the isomerization of MCBD‐fused metallapentalenes is investigated both experimentally and theoretically, indicating that it is an intramolecular process involving a metallatetrahedrane (MTd) intermediate. This research provides experimental evidence demonstrating that one MCBD can undergo intramolecular rearrangement to transform into another.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Metallacyclobutadienes: Intramolecular Rearrangement from Kinetic to Thermodynamic Isomers ; day:05 ; month:08 ; year:2024 ; extent:6
Advanced science ; (05.08.2024) (gesamt 6)
- Creator
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Cai, Yuanting
Hua, Yuhui
Lu, Zhengyu
Chen, Jiangxi
Chen, Dafa
Xia, Haiping
- DOI
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10.1002/advs.202403940
- URN
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urn:nbn:de:101:1-2408061427261.758141695167
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
- 14.08.2025, 10:54 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Cai, Yuanting
- Hua, Yuhui
- Lu, Zhengyu
- Chen, Jiangxi
- Chen, Dafa
- Xia, Haiping
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