Phosphine-terminated dendrimers - Synthesis and complexation properties

Several ways of synthesis of phosphine-terminated dendrimers are described. The diphenylphosphine group, which is used in almost all cases, can be either a component of the reiterative process of synthesis of the dendrimer or can be grafted only on the surface, after the synthesis of the dendrimer. The PPh2 moieties are linked to various types of surface groups, including chiral substituents. In one case, the synthesis has been carried out to the tenth generation (3072 PPh2 end groups). The complexation properties of the phosphine and diphosphine-terminated dendrimers have been studied toward various transition metal derivatives, including W, Fe, Ru, Ph, Pd, Pt, and Au. (C) 1998 Elsevier Science S.A. All rights reserved.