Jump to main content
Jump to site search

Issue 16, 1998
Previous Article Next Article

Chemoselective homogeneous hydrogenation of phenylacetylene using thiosemicarbazone and thiobenzoylhydrazone palladium(II) complexes as catalysts

Abstract

A series of monometallic palladium(II) complexes with thiosemicarbazones and thiobenzoylhydrazones has been synthesized and characterised by spectroscopic methods. The crystal structures of chloro(phenyl 2-pyridyl ketone thiosemicarbazonato)palladium(II) 1a and chloro(phenyl 2-pyridyl ketone thiobenzoylhydrazonato)palladium(II) 2 were also determined. The catalytic activity of the complexes in the homogeneous hydrogenation of phenylacetylene was tested with particular regard to the chemoselectivity from a triple to a double bond. Using chloro-complexes a high chemoselectivity was always observed. Results of a kinetic study of the hydrogenation of phenylacetylene in the presence of chloro(methyl 2-pyridyl ketone thiosemicarbazonato)palladium(II) 3 as catalyst provided suggestions for the elucidation of the catalytic cycle of the reaction.

Back to tab navigation

Supplementary files


Article type: Paper
DOI: 10.1039/A804052D
Citation: J. Chem. Soc., Dalton Trans., 1998,0, 2715-2722
  •   Request permissions

    Chemoselective homogeneous hydrogenation of phenylacetylene using thiosemicarbazone and thiobenzoylhydrazone palladium(II) complexes as catalysts

    P. Pelagatti, A. Venturini, A. Leporati, M. Carcelli, M. Costa, A. Bacchi, G. Pelizzi and C. Pelizzi, J. Chem. Soc., Dalton Trans., 1998, 0, 2715
    DOI: 10.1039/A804052D

Search articles by author

Spotlight

Advertisements