ISSN:
1572-879X
Schlagwort(e):
polymer ligand
;
phosphinated linear polystyrene
;
palladium catalyst
;
ethoxycarbonylation
;
4,4′-dibromobiphenyl
;
diethyl biphenyl-4,4′-dicarboxylate
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract Phosphinated linear polystyrene was synthesized and used as a ligand of palladium catalysts. It showed high activity for the ethoxycarbonylation of 4,4′-dibromobiphenyl (I) in the presence of triethylamine. The catalysts acted as homogeneous under the reaction conditions (150°C, p(CO) = 10 kg/cm2), and precipitated as solid materials after the reaction. Catalytic performances highly depended on the compositions of the solvent, and the highest activity was achieved in ethanol.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00806064
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