Vanillin and o-vanillin oligomers as models for dendrimer disassembly†‡
Robert M. Kevwitch,Charles S. Shanahan,Dominic V. McGrath
New Journal of Chemistry Pub Date : 12/08/2011 00:00:00 , DOI:10.1039/C1NJ20841A
Abstract

Linear analogs have been synthesized to model disassembling dendrimers. These linear analogs provide a facile synthesis to molecules that can be used to test new trigger groups and cleavage vectors. Vanillin and o-vanillin were used as the monomer units of these analogs and two trigger groups, allyl and o-nitrobenzyl, were chosen to test the disassembly process. Allyl triggered analogs 1a–d and 3a–d and o-nitrobenzyl triggered analogs 2a–c and 4a–c showed good to excellent disassembly as followed by the evolution of p-nitrophenoxide reporter ion by UV-Visible spectroscopy. The rate and yield of disassembly was shown to depend on experimental conditions as well as length of the cleavage vector.

Graphical abstract: Vanillin and o-vanillin oligomers as models for dendrimer disassembly