Design and synthesis of photoresponsive poly(benzyl ester) dendrimers with all-azobenzene repeating units.
A novel class of dendrons and dendrimers containing all-azobenzene units (up to 29 azobenzene groups) was designed and synthesized by the convergent method using a protected orthogonal AB(2) monomer (10) and tetra-functionalized core (11) as building blocks. The preparation of the key monomer (10) involved condensation of a protected nitroso compound (9) and 5-aminoisophthalic acid. These are the first examples of photoresponsive dendrimers with all-azobenzene repeating units. [structure: see text]
Wang
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Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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