Highly efficient divergent synthesis of dendrimers via metal‐free “click” chemistry

A new synthetic strategy to prepare dendrimers using a single, inexpensive monomer is described. Divergent growth relies on a highly efficient, metal‐free Click cycloaddition of azides to alkynes. Functional dendrimers are obtained with minimal purification in high yields, with no by‐product but a water soluble salt, and the excess of monomer used can be recycled at each stage of the iterative synthesis.