Abstract
A new heterogeneous catalyst system for the cross-metathesis of methyl oleate with ethylene was investigated based on methyltrioxorhenium (MTO) grafted on the spinel-type mesoporous ZnAl2O4 in the absence of chloride for the first time. NH3 TPD spectra revealed that the number of Lewis acid sites of ZnAl2O4 decreased significantly after MTO grafting, thereby demonstrating that the Lewis acid sites of the ZnAl2O4 support are involved in the binding to MTO. Notably, the MTO grafted on ZnAl2O4 catalyst exhibited a good catalytic activity, producing only the desired cross-metathesis products of 1-decene and methyl 9-decenoate.
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