Organic compounds -- part of the class 532-570 series – Organic compounds – Aluminum containing
Patent
1995-12-22
1998-11-03
Nazario-Gonzalez, Porfirio
Organic compounds -- part of the class 532-570 series
Organic compounds
Aluminum containing
556182, 556190, 502117, 502152, C07F 506, B01J 3100
Patent
active
058311092
ABSTRACT:
The present invention relates to a process which comprises the non-hydrolytic transformation of an aluminoxane precursor composition, comprising carbon-to-oxygen bonds which can be alkylated by an alkylaluminum moiety, into a catalytically useful aluminoxane composition. In one embodiment of this invention, the catalytically useful aluminoxane composition is a polymethylaluminoxane composition substantially free of trimethylaluminum. The intermediate precursor is formed by the reaction of a trialkylaluminum compound, or a mixture of trialkylaluminum compounds, and a compound containing a carbon-to-oxygen bond, such as an alcohol, ketone, carboxylic acid, or carbon dioxide. Either unsupported or supported polymethyl-aluminoxane compositions can be formed.
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E.A. Jeffery et al., "Hemi-Alkoxides from Reactions of Trimethylaluminum with Aldehydes or Ketones", Aust. J. Chem., 1970, 23, 715-724.
A. Meisters et al., "Exhaustive C-Methylation of Ketones by Trimethylaluminum", Aust. J. Chem., 1974, 27, 1655-1663.
A. Meisters et al., "Exhuastive C-Methylation of Carboxylic Acids by Trimethylaluminum: A New Route to t-Butyl Compounds", Aust. J. Chem., 1974, 27, 1665-1672.
D.W. Harney et al., "C-Methylation of Alcohols by Trimethylaluminum", Aust. J. Chem., 1974, 27, 1639-1653.
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Malpass Dennis B.
Palmaka Stanley W.
Rogers Jonathan S.
Smith Gregory M.
Akzo Nobel nv
Fennelly Richard P.
Morris Louis A.
Nazario-Gonzalez Porfirio
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