831179-85-2Relevant articles and documents
Synthesis and characterization of fluorescent poly(aromatic amide) dendrimers
Aulenta, Francesca,Drew, Michael G. B.,Foster, Alison,Hayes, Wayne,Rannard, Steven,Thornthwaite, David W.,Worrall, David R.,Youngs, Tristan G. A.
, p. 63 - 78 (2007/10/03)
(Chemical Equation Presented). The synthesis of a series of poly(aromatic amide) dendrimers up to the second generation is described herein. The AB 2 building block used throughout the synthesis of the dendrimers was the allyl ester of 3,5-diaminocinnamic acid, which has been synthesized from 3,5-dinitrobenzoic acid in good yield with use of a four-step procedure. Dendron synthesis was achieved via a convergent approach with use of a sequence of deprotection/coupling steps. Two commercially available alcohols, L-menthol and citronellol, were coupled to the AB2 monomer by using an alkyl diacid spacer and two core units; 1,7-diaminoheptane and tris(2-aminoethyl)amine have been used to produce the final dendrimers. Characterization was carried out by NMK and IR spectroscopies, MALDI-TOF mass spectrometry, GPC, and DSC. The novel monomer and dendritic derivatives exhibited a strong fluorescence emission in the visible region (λ ≈ 500 nm) of the spectrum and a weak emission in the near-infrared (λ ≈ 850 nm) upon excitation in the near-UV region. The fluorescence emission characteristics were found to be solvent and dendrimer generation dependent.
