Issue 7, 2007
From the journal:

New Journal of Chemistry

Synthesis and degradation of photolabile dendrimers based on o-nitrobenzyl ether photolabile cores†

Robert M. Kevwitcha  and  Dominic V. McGrath*a  

* Corresponding authors

a Department of Chemistry, University of Arizona, Tucson, USA
E-mail: mcgrath@u.arizona.edu
Fax: 520-621-8407
Tel: 520-626-4690

Abstract

Two dendrimer cores, 1a and 2a, that contain o-nitrobenzyl photolabile moieties, lack hydrolytically sensitive ester linkages and possess three and six sites for dendron attachment, respectively, have been alkylated to provide methylated core analogs 1b and 2b as well as second-generation benzylaryl ether dendrimer 1c and third-generation dendrimer 2c. These dendrimers undergo clean photocleavage as indicated by the evolution of isosbestic points in the UV spectra during photolysis. In addition, the nature of the photodegradation products was confirmed by observing the photolyses by both 1H NMR and GPC.

Graphical abstract: Synthesis and degradation of photolabile dendrimers based on o-nitrobenzyl ether photolabile cores

  • This article is part of the themed collection: Dendrimers
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Article information

DOI
https://doi.org/10.1039/B617289J
Article type
Paper
Submitted
27 Nov 2006
Accepted
26 Mar 2007
First published
11 Apr 2007

New J. Chem., 2007,31, 1332-1336

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Synthesis and degradation of photolabile dendrimers based on o-nitrobenzyl ether photolabile cores

R. M. Kevwitch and D. V. McGrath, New J. Chem., 2007, 31, 1332 DOI: 10.1039/B617289J

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