Aryl polyester dendrimers and dendrons have been prepared by using 'br
anched monomer strategies', in which the surface and the focal point o
f the multi-branched monomer have been protected with two different ki
nds of protective group. The protective group for the focal point was
stable during deprotection of the surface. Different wedges could be a
ttached to the multi-branched monomers to form large dendrons whilst a
ctive dendrons could be attached to different cores to form various de
ndrimers with different wedges and different cores.