A new, efficient, sensitive, and reliable color test for the visual detection of resin-bound primary and secondary amines is described. The reaction between amines and 1-methyl-2-(4'-nitrophenyl)-imidazo[1,2- a]pyrimidinium perchlorate (DESC) provides the "on-bead generated" colored stable intermediate azadiene. The developed protocols allow detection of resin-bound primary amines in the presence of secondary amines. The test can also be used for the detection of resin bound thiols.
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| http://dx.doi.org/10.1021/cc800031y | DOI Listing |
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