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Superior to the homogeneous catalyst or physisorbed catalyst system is a system with the ansa-metallocene catalyst [{C H (1-ind) }Zr(CH )] on a support formed by covalently anchoring methylalumoxane (MAO) on the internal pore walls of MCM-41. This system is a highly active and shape-selective mesoporous host in the co-oligomerization [shown schematically in Equation (a)] of ethene and propene with ansa-metallocenes. TMA=trimethylaluminum, ind=indenyl.

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The incorporation of TS-1 and Ti-MCM-41 catalysts in PDMS is proven to enable the oxidation of hexane and epoxidation of cis-cyclooctene, respectively, with high conversions under solvent-free reaction conditions.