Immobilization of olefin metathesis catalyst on the nanoporous hybrid frameworks (NHFs)
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We prepared olefin metathesis catalyst immobilized in nanoporous hybrid frameworks (NHFs) membrane. Nanoporous hybrid frameworks membrane was synthesized by sol-gel polymerization of tetrakis(4-aminophenyl)methane and hexamethylene diisocyanate. The sol was mixed with organosilica precursor and the mixture was cast on glass plate. The nanoporous NHF membrane was directly obtained by evaporation of solvent followed by thermal curing. Grubbs 1 generation catalyst was modified by a reaction with a ligand containing trimethoxysilyl group. The resulting ruthenium catalyst was immobilized into the NHF membrane.