Catalyst compositions

Details Catalyst compositions Catalyst compositions

C - Chemistry, Metallurgy

08

G

252/53, 252/86,

C08G 67/02 (2006.01) B01J 23/44 (2006.01) B01J 31/18 (2006.01)

Patent

CA 1324456

A B S T R A C T CATALYST COMPOSITIONS Novel catalyst compositions, characterized in that they are based upon a) a palladium compound, b) a non-noble transition metal salt of an acid with a pKa of less than 2, provided that the acid is not a hydrohalogenic acid, or a mixture of such a salt and such an acid, c) a bidentate ligand of the general formula R1R2-M-R-M-R3R4, wherein M represents phosphorus, arsenic or antimony, R1, R2, R3 and R4 represent hydrocarbyl groups which may or may not be substituted with polar groups and R represents a bivalent organic bridging group having at least two carbon atoms in the bridge, and d) a quinone, if desired.

529757

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