Process for preparing a complex
AssigneeJohnson Matthey Public Limited Company
InventorsChristopher Francis James Barnard, Hongbo Li
Life of this patent
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Abstract
The present invention provides a process for the preparation of a complex of formula (A) or (B): wherein, M is a platinum group metal atom; each X is an anionic monodentate ligand; is a bidentate phosphine ligand; and R1 and R2 are independently selected from the group consisting of straight-chain C1-10 alkyl, branched-chain C3-10 alkyl, C3-10 cycloalkyl and optionally substituted aryl; comprising the steps of: (a) preparing by reacting the lithium salt of R1R2PH with a dihaloalkane in a solvent comprising an alkyl ether and, optionally, an alkane, provided the alkyl ether is not diethyl ether; (b) reacting with a platinum group metal precursor compound to form the complex of formula (A) or formula (B).
Claims15
A process for the preparation of a complex of formula (A) or (B):
- wherein,
- M is a platinum group metal atom;
- each X is an anionic monodentate ligand;
- is a bidentate phosphine ligand;
- and
- R1 and R2 are independently selected from the group consisting of straight-chain C1-10 alkyl, branched-chain C3-10 alkyl, C3-10 cycloalkyl and optionally substituted aryl;
- comprising the steps of:
- (a) preparing
- by reacting the lithium salt of R1R2PH with a dihaloalkane in a solvent comprising an alkyl ether and, optionally, an alkane, provided the alkyl ether is not diethyl ether;
- (b) reacting
- with a platinum group metal precursor compound to form the complex of formula (A) or formula (B).
Dependencies are inferred from the claim text.