USE OF ORGANIC DERIVATIVES OF RHENIUM OXIDES AS CATALYSTS FOR ETHENOLYTIC METATHESIS OF OLEFINIC COMPOUNDS AND PROCESS FOR ETHENOLYTIC METATHESIS OF OLEFINIC COMPOUNDS USING THESE CATALYSTS

摘要

The invention relates to the use of compounds of general formula (I): R1aRebOc, where a is 1 to 6, b is 1 to 4, and c is 1 to 14 and the sum of a, b and c is compatible with the penta- or heptavalency of the rhenium and provided that c is not greater than 3b, and where R1 is an alkyl residue with 1 to 9 carbon atoms, a cycloalkyl residue with 5 to 10 carbon atoms or an aralkyl residue with 7 to 9 carbon atoms or an aralkyl residue with 7 to 9 carbon atoms, where R1 can be at least partially fluorinated, the compounds contain not more than three groups with more than 6 carbon atoms per rhenium atom and at least one hydrogen atom is also linked to the carbon atom in the α position, which are applied to oxidic carrier materials, as catalysts for ethenolytic metathesis of olefinic compounds. The invention also relates to a process for metathesis of olefins in which olefins of formula (II), where n is a whole number between 1 and 28, K stands for h or F, Y stands for H or alkyl with 1 to 10 carbon atoms and Z stands for H or a non-aromatic hydrocarbon residue with 1 to 6 carbon atoms, but Y and Z are not hydrogen simultaneously, and the substituent R2 is H, alkyl, halogen, COOR?3 or OR4¿, where R?3 and R4¿ stand for alkyl with 1 to 15, preferably 1 to 6, carbon atoms or phenyl, which can also contain 1 to 3 substituents on the ring or where R4 stands for trialkylsilyl R53Si, where R5 stands for alkyl with 1 to 5, preferably 1 to 3, carbon atoms, are reacted with ethylene on catalysts consisting of oxidic support materials which are applied to the rhenium compounds of the above-mentioned type.