Phosphorous containing ligands for metathesis catalysts
AssigneeSasol Technology (UK) Limited
InventorsCatherine Lynn Dwyer, Ann Elizabeth Catherine McConnell, Grant Stephen Forman
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Abstract
The use of a phosphorus containing Ligand as a Ligand for a metathesis catalyst in a catalysed metathesis reaction wherein the phosphorus containing Ligand is a heterocyclic organic compound with a ligating phosphorus atom as an atom in the heterocyclic ring structure of the heterocyclic organic compound. The invention also relates to a metathesis catalyst such a phosphorus containing Ligand and to a metathesis reaction using the catalyst.
Claims17
A metathesis catalyst comprising a phosphorus containing ligand which is a heterocyclic organic compound in the form of a phosphabicycloalkane with a ligating phosphorus atom as an atom in the heterocyclic ring structure of the heterocyclic organic compound.
A compound of formula 3:
- wherein
- L1 is a neutral electron donor ligand;
- L2 is a phosphorous containing ligand in the form of a heterocyclic organic compound in the form of a phosphabicycloalkane with a ligating phosphorus atom as an atom in the heterocyclic ring structure of the heterocyclic organic compound;
- X1 and X2 are independently an anionic ligand;
- and
- R′ and R″ are independently H or an organyl.
A catalysed metathesis reaction comprising subjecting at least one olefinic compound to metathesis in the presence of a compound of formula 3:
- wherein
- L1 is a neutral electron donor ligand;
- L2 is a phosphorous containing ligand in the form of a heterocyclic organic compound in the form of a phosphabicycloalkane with a ligating phosphorus atom as an atom in the heterocyclic ring structure of the heterocyclic organic compound;
- X1 and X2 are independently an anionic ligand;
- and
- R′ and R″ are independently H or an organyl.
A catalysed metathesis reaction comprising subjecting at least one olefinic compound to metathesis in the presence of a metathesis catalyst comprising a phosphorus containing ligand which is a heterocyclic organic compound in the form of a phosphabicycloalkane with a ligating phosphorous atom as an atom in the heterocyclic ring structure of the heterocyclic organic compound.
Dependencies are inferred from the claim text.