Beilstein J. Org. Chem.2015,11, 1037–1042, doi:10.3762/bjoc.11.116
–alkyne cycloaddition (CuAAC) polymerization, were quarternized quantitatively with methyl iodide in sulfolane at 60 °C to obtain soluble oligomers. The conformation of the quarternized oligoAP in dilute DMSO-d6 solution was examined by pulse-field-gradient spin-echo NMR based on the touched bead model
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Keywords: 3-azido-1-propyne oligomer; CuAACpolymerization; hydrodynamic radius; methyl iodide; pulse-field-gradient spin-echo NMR; quarternization; Introduction
The copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC) efficiently yields 1,4-disubstituted-1,2,3-triazole from rather stable azides and
dipole moment and aromaticity, 1,2,3-triazole itself may be a functional group. Polymers composed of dense 1,2,3-triazole moieties on the backbone are thus promising as functional materials.
Recently, we have investigated the CuAACpolymerization of 3-azido-1-propyne (AP) using 3-bromo-1-propyne as a
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Graphical Abstract
Scheme 1:
CuAAC polymerization of 3-azido-1-propyne (AP) (a) and quarternization of 3-azido-1-propyne oligome...