Catalyst composition

Details Catalyst composition Catalyst composition

1997-12-03

2000-01-25

Truong, Duc

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymer of an ethylenically unsaturated reactant with a...

528397, 528399, 556 7, 556 13, 556136, 502155, 502162, 502167, C08G 6702

Patent

active

060180161

ABSTRACT:
A catalyst composition prepared by reacting together (a) a source of a Group VIII metal; (b) a bidentate phosphine ligand having at least two phosphorus atoms joined by a bridging group of the formula --(N).sub.x --(P).sub.y --N-- where x is 0 or 1; and (c) a promoter is disclosed. The Group VIII metal is preferably palladium. The promoter can be a weakly or non-coordinating anion. Alternatively it can be a boron hydrocarbyl compound or an aluminoxane. Also disclosed are novel bidentate phosphine ligands and intermediates therefor as well as novel palladium complexes. The catalysts are used in the preparation of polyketones.

REFERENCES:
patent: 5770684 (1998-06-01), Stewart et al.
"A New Approach to the Synthesis of Aryldifluorophosphines, Formation of CIS-Dichloro-BIS (Aryldifluorophosphine) Platinum (II) Complexes" (Journal of Fluorine Chemistry; L. Heuer and R. Schmutzler; vol. 39, pp. 197-216. .COPYRGT.1988).

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