Choice of strategies for the divergent synthesis of phosphorus-containing dendrons, depending on the function located at the core

The use of divergent strategies is a fruitful approach for the synthesis of phosphorus-containing dendrons (dendritic wedges). Different synthetic pro cesses have been devised, depending on the type of function located at the core (alkenyl groups, pyridine derivatives, chloromethyl or azidomethyl gro ups). In all cases, the divergent strategy easily allows one to have very r eactive functional groups such as P-Cl, amine, phosphine or aldehyde groups on the surface of the dendron.