title: Ruthenium complexes with dendritic ferrocenyl phosphanes: synthesis, characterization, and application in the catalytic redox isomerization of allylic alcohols.
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.
authors.affiliation: Institute of Inorganic Chemistry, Universität Leipzig, Johannisallee 29, 04103 Leipzig (Germany), Fax: (+49) 341-973-9319 http://www.uni-leipzig.de/chemie//hh.
authors.forename: Paul
authors.initials: P
authors.lastname: Neumann
authors.forename: Hanna
authors.initials: H
authors.lastname: Dib
authors.forename: Alix
authors.initials: A
authors.lastname: Sournia-Saquet
authors.forename: Toni
authors.initials: T
authors.lastname: Grell
authors.forename: Marcel
authors.initials: M
authors.lastname: Handke
authors.forename: Anne-Marie
authors.initials: AM
authors.lastname: Caminade
authors.forename: Evamarie
authors.initials: E
authors.lastname: Hey-Hawkins
keywords: allylic alcohols; dendrimers; ferrocenes; homogeneous catalysis; phosphanes