Method of preparing metal complexes of formula Z-M, in particular carbene-metal complexes
AssigneeUniversiteit Gent
InventorCatherine Suzanne Julienne Cazin
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Abstract
The present invention relates to an improved method of preparing metal complexes, in particular carbene-metal complexes. The method comprises the step of subjecting a salt of formula Z+—X− and a non-ionic metal salt of formula MLn or subjecting a metallate of formula Z+ . . . MLnX− to a mechanical mixing process in the presence of a base. The method allows to formation of heterocyclic carbene metal complexes such as a nitrogen-containing heterocyclic carbene (NHC)-metal complexes. The invention also relates to the use of metal complexes, in particular carbene-metal complexes such as heterocyclic carbene-metal complexes obtainable by the method according to the present invention as catalysts.
Claims17
A method of preparing a metal complex of formula Z-M, the method comprising the steps of
- i1) providing a salt of formula Z+—X− and a non-ionic metal salt of formula MLn;
- or
- i2) providing a metallate of formula Z+. . . MLnX−,
- with
- Z comprising a two-electron donor ligand;
- X comprising an anion;
- M comprising a metal;
- L comprising an anion or an electron donor ligand;
- and
- ii) subjecting the salt of formula Z+—X− and the metal salt of formula ML of step i1) or the metallate of formula Z+. . . MLnX−, of step i2) to a mechanical mixing process in the presence of a base to form said metal complex of formula Z-M.
Dependencies are inferred from the claim text.