Abstract
Two dendrimer cores, 5 and 12 , containing o -nitrobenzyl photolabile
moieties have been synthesized from piperonal in five and eight
steps, respectively. Methylated core analogs 6 and 13 undergo clean photocleavage as indicated
by the evolution of isosbestic points in the UV spectra during photolysis
and the observation of degradation products by 1 H
NMR. These dendrimer cores serve as precursors to dendrimer-based
photodegradable materials.
Key words
dendrimers -
o -nitrobenzyl
cleavage - photochemistry - photodegradable polymers
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