Dendrimers consisting of stilbene or distyrylbenzene building blocks synthesis and stability

Article abstract of DOI:10.1016/S0040-4020(99)00823-6

On the basis of Wittig-Homer reactions and protection group techniques compound 7 for the core and the components 9a-c and 11a-c for the dendrons were prepared and linked in the final step. The convergent synthesis yielded constitutionally and configurationally pure dendrimers (2a-c, 2a'-c') which consist of distyrylbenzene units. Their thermo-oxidative stability in the presence of air was studied by chemiluminescence and compared to the dendrimers 1 consisting of stilbene units.