ISSN:
1573-9171
Keywords:
p-bromotoluene
;
dehalogenation
;
ruthenium
;
mobilized complexes
;
modified silica gel
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Mono-, bi-, and trinuclear Ru complexes with various ligands immobilized on the surface of silica gels modified with γ-aminopropyl, formamide, sulfide, cyano, or mercapto groups, catalyze hydrodehalogenation ofp-bromotoluene by the transfer of hydrogen from NaBH4 in 2-propanol both in an Ar atmosphere and in air. The structures of the heterogenized metallocomplex catalysts prepared (the nature of the ligand environment, the oxidation number of the central atom) were studied by IR and XP spectroscopy. The immobilized binuclear RuII,III tetraacetate, which retains the structure of the original complex, exhibits higher catalytic activity in the hydrogenolysis ofp-bromotoluene than heterogenized mononuclear systems.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00696959
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