Identification of 4,5-unsymmetrically substituted l-amino- and 1-(N-arylacetylamino)-1,2,3-triazoles by 13C-NMR |
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Authors: | C Tsoleridis J Stephanidou-Stephanitou N E Alexandrou |
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Abstract: | 13C nmr chemical shifts are used for the structural assignment of isomeric 1-amino-1,2,3-triazoles and 1-(N-arylacetylamino)-1,2,3-triazoles unsymmetrically substituted with phenyl, methyl or hydrogen in the 4,5-positions of the triazole ring. A signal at 11 ± 0.6 ppm indicates a 4-methyl triazole derivative, whereas a signal at 7.9 ± 1 ppm indicates a 5-methyl triazole. A signal at 120 ± 0.5 ppm (C-5) indicates a hydrogen in the 5-position (unsubstituted triazole). |
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