New catalysts for olefin metathesis are obtained upon interaction betw
een rhenium trisacetylacetonate and Y-Al2O3 surface. After high temper
ature treatment in flows Of O2 and N2 and addition of organometallic c
ompound as a cocatalyst the activity of the resulting catalyst exceeds
that of known Re/Al2O3 catalysts prepared by impregnation. The cataly
sts exhibit maximal activity at a cocatalyst surface concentration of
3 x 10(-7) mol/m2. Further increase of the cocatalyst concentration le
ads to deactivation.