Journal
JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volume 692, Issue 10, Pages 1928-1939Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2007.01.001
Keywords
dendrons; dendrimers; phosphines; complexes; ruthenium; rhodium
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Dendrons possessing one activated vinyl group at the core and several chlorine atoms at the end of the branches are used as starting materials to study the possibility to react independently the surface functions and the core function. In particular, the most powerful sequence of reactions for decorating them by organometallic complexes as end groups and amine or alcohol at the core has been determined. In the first step, phenol phosphines are grafted as end groups of the dendrons, and they can be used for the complexation of metals. However, these phosphines must be kept free when amines are used to react with the vinyl core in the next step. Depending on the type of phosphine end groups and on the type of function of the core (amine or alcohol), the complexation of ruthenium ([RuCl2(p-cymene)](2)) and rhodium ([RhCl(COD)](2)) derivatives by the phosphine end groups can occur without side reaction at the core. (c) 2007 Elsevier B.V. All rights reserved.
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