A New Structural Motif in Aggregation of Methylalumoxanes: Non-Hydrolytic Route by the Alkylation of Dicarboxylic Acids.

Alumoxanes are typically produced via controlled hydrolysis of short-chain alkyl aluminium compounds which leads to oligomeric species that are usually difficult to obtain in crystalline form. Simultaneously, various alternative non-hydrolytic approaches to alumoxanes have also been used. In this work, we report on a new methylalumoxane scaffold derived from the alkylation of a series of dicarboxylic acids: itaconic acid (HOCCHC(=CH)COH), succinic acid (HOCCHCHCOH) and homophthalic acid (HOCCHCHCOH).