Issue 17, 2001

Reaction of trimethylaluminium with main group hydroxides: a non-hydrolysis route to methylalumoxane

Abstract

Reaction of AlMe3 with [(tBu)2Ga(μ-OH)]3 or Ph3EOH (E = Sn, Pb) yields catalytically active MAO, [MeAlO]n, along with (tBu)2GaMe and Ph3EMe, respectively, in contrast, the reaction with Ph3EOH (E = C, Si, Ge) yields [Me2Al(μ-OEPh3)]2; the formation of MAO is proposed to occur via hydroxide exchange and the formation of unstable [Me2Al(μ-OH)]n; the propensity towards alkane elimination versus hydroxide exchange is controlled by the relative Brønsted acidity of the main group hydroxide.

Graphical abstract: Reaction of trimethylaluminium with main group hydroxides: a non-hydrolysis route to methylalumoxane

Supplementary files

Article information

Article type
Communication
Submitted
23 May 2001
Accepted
12 Jul 2001
First published
10 Aug 2001

J. Chem. Soc., Dalton Trans., 2001, 2456-2458

Reaction of trimethylaluminium with main group hydroxides: a non-hydrolysis route to methylalumoxane

S. J. Obrey and A. R. Barron, J. Chem. Soc., Dalton Trans., 2001, 2456 DOI: 10.1039/B104578B

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