Palladium catalyst systems for selective hydrogenation of dienes

Details Palladium catalyst systems for selective hydrogenation of dienes Palladium catalyst systems for selective hydrogenation of dienes

1995-09-14

1997-07-29

Lipman, Bernard

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502172, 556 6, 556136, 556137, B01J 3100

Patent

active

056521910

ABSTRACT:
A catalyst precursor is provided that is useful in the selective hydrogenation of olefinic unsaturation in polymers or copolymers. The precursor comprises a palladium salt that is complexed with a complexing agent selected from the gronp consisting of organic phosphates, dialkylidene acetones, and tetraalkyl ammonium hydroxides. The catalyst precursor may be nsed in batch, step-wise addition, or continuous systems.

REFERENCES:
patent: 4048093 (1977-09-01), Knifton
"Palladium-Catalyzed Desulfonylative Coupling of Arylsolfonyl Chlorides. . . ," Miura, at al, Tetrahedron Lett. (1989), 30(8), 975-6.
"Catalytic Activity of Palladium Metallic Complexes. . . ", Scharf, et al, Izu. Akad. Nauk SSSR, Ser. Khim. (1984), (10), 2384-6.

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