An efficient system for the catalytic redox isomerization of the allylic alcohol 1-octen-3-ol to 3-octanone is presented. The homogeneous ruthenium(II) catalyst contains a monodentate phosphane ligand with a ferrocene moiety in the backbone and provides 3-octanone in quantitative yields. The activity is increased by nearly 90 % with respect to the corresponding triphenyl phosphane ruthenium(II) complex. By grafting the catalyst at the surface of a dendrimer, the catalytic activity is further increased. By introducing different spacers between ferrocene and phosphorus, the influence on the electronic properties of the complexes is shown by evaluating the electrochemical behavior of the compounds.

Ruthenium complexes with dendritic ferrocenyl phosphanes: Synthesis, characterization, and application in the catalytic redox isomerization of allylic alcohols / P. Neumann, H. Dib, A. Sournia-Saquet, T. Grell, M. Handke, A.-. Caminade, E. Hey-Hawkins. - In: CHEMISTRY-A EUROPEAN JOURNAL. - ISSN 0947-6539. - 21:17(2015 Apr 20), pp. 6590-6604. [10.1002/chem.201406489]

Ruthenium complexes with dendritic ferrocenyl phosphanes: Synthesis, characterization, and application in the catalytic redox isomerization of allylic alcohols

T. Grell;
2015-04-20

Abstract

An efficient system for the catalytic redox isomerization of the allylic alcohol 1-octen-3-ol to 3-octanone is presented. The homogeneous ruthenium(II) catalyst contains a monodentate phosphane ligand with a ferrocene moiety in the backbone and provides 3-octanone in quantitative yields. The activity is increased by nearly 90 % with respect to the corresponding triphenyl phosphane ruthenium(II) complex. By grafting the catalyst at the surface of a dendrimer, the catalytic activity is further increased. By introducing different spacers between ferrocene and phosphorus, the influence on the electronic properties of the complexes is shown by evaluating the electrochemical behavior of the compounds.
allylic alcohols; dendrimers; ferrocenes; homogeneous catalysis; phosphanes
Settore CHIM/03 - Chimica Generale e Inorganica
12-mar-2015
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/906640
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