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Potassium Aluminyl Promoted Carbonylation of Ethene.
- Source :
-
Angewandte Chemie . 4/11/2022, Vol. 134 Issue 16, p1-5. 5p. - Publication Year :
- 2022
-
Abstract
- The potassium aluminyl [K{Al(NONDipp)}]2 ([NONDipp]2−=[O{SiMe2NDipp}2]2−, Dipp=2,6‐iPr2C6H3) activates ethene towards carbonylation with CO under mild conditions. An isolated bis‐aluminacyclopropane compound reacted with CO via carbonylation of an Al−C bond, followed by an intramolecular hydrogen shift to form K2[Al(NONDipp)(μ‐CH2CH=CO‐1κ2C1,3‐2κO)Al(NONDipp)Et]. Restricting the chemistry to a mono‐aluminium system allowed isolation of [Al(NONDipp)(CH2CH2CO‐κ2C1,3)]−, which undergoes thermal isomerisation to form the [Al(NONDipp)(CH2CH=CHO‐κ2C,O)]− anion. DFT calculations highlight the stabilising influence of incorporated benzene at multiple steps in the reaction pathways. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POTASSIUM
*ISOMERIZATION
*CARBONYLATION
Subjects
Details
- Language :
- English
- ISSN :
- 00448249
- Volume :
- 134
- Issue :
- 16
- Database :
- Academic Search Index
- Journal :
- Angewandte Chemie
- Publication Type :
- Academic Journal
- Accession number :
- 156113658
- Full Text :
- https://doi.org/10.1002/ange.202117396