Controlled hydrolysis of AlMe3 to tetramethylalumoxane and a new look at incipient adducts with water

Controlled hydrolysis of AlMe3 to tetramethylalumoxane and a new look at incipient adducts with water

We present an efficient route to tetramethylalumoxane by the controlled hydrolysis of AlMe3 in the presence of pyridine. The AlMe3(pyr) hydrolysis by 0.5 and 1 equiv. of H2O has been followed with real-time 1H NMR. Based on high-level quantum-chemical calculations, we conclude that hypervalent, pent...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2024-08, Vol.60 (70), p.9392-9395
Hauptverfasser: Korona, Krzesimir, Justyniak, Iwona, Pogrebetsky, James, Lemieszka, Marta, Bernatowicz, Piotr, Pietrzykowski, Antoni, Kubas, Adam, Lewiński, Janusz
Format: Artikel
Sprache:eng
Schlagworte:
Adducts
Hydrolysis
NMR
Nuclear magnetic resonance
Quantum chemistry
Real time
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Zusammenfassung:We present an efficient route to tetramethylalumoxane by the controlled hydrolysis of AlMe3 in the presence of pyridine. The AlMe3(pyr) hydrolysis by 0.5 and 1 equiv. of H2O has been followed with real-time 1H NMR. Based on high-level quantum-chemical calculations, we conclude that hypervalent, pentacoordinate aluminium species are critical in the first steps of hydrolysis.
ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/d4cc03672g