Catalyst fixed on a carrier and used for the metathesis of olefins
AssigneeBASF SE
InventorsJean-Marie Basset, Mathieu Chabanas, Christophe Coperet
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Abstract
The present invention relates to a novel, heterogeneous catalyst which is suitable, in particular, for olefin metathesis. This catalyst is immobilized on an inorganic support and contains at least one active rhenium compound containing at least one carbene group and, if desired, further functional groups. The rhenium compound is bonded to the material used as support by a chemical bond.
Claims32
A heterogeneous catalyst immobilized on an inorganic support, comprising at least one active rhenium containing at least one carbene group, wherein the rhenium is bonded to the material used as support by a covalent bond, and which conforms to the general formula (II)
- Support —Re(CR1)a(═CR2R3)b(CR4R5R6)c(X)d (II)
- in which R1 to R6, independently of one another, are selected from the group consisting of hydrogen, cyclic and acyclic, linear and branched, substituted and unsubstituted C1-C40-alkyl groups, C2-C40-alkenyl and alkynyl groups, C5-C9-aromatic groups and silyl groups, X is selected from the group consisting of hydrogen, halogens, oxo groups, imido groups, alkoxy groups and nitride groups, and the indices a, c and d, independently of one another, are integers from 0 to 4, b is an integer of 1 to 4, where the values of the individual numbers depend on the stoichiometrically necessary amounts.
Dependencies are inferred from the claim text.