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First reversible protonation of the all-nitrogen 1-aryl pentazole ring |
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| Authors: | RN Butler John C Stephens John M Hanniffy |
| Institution: | Department of Chemistry, National University of Ireland, Galway, Ireland |
| Abstract: | At −40 °C in chlorosulfonic acid 1-aryl pentazoles were protonated at N-3. The N-3 atom showed a 15N NMR shielding shift of −60 to −62 ppm. The -N5 ring is the highest member of the azole series. |
| Keywords: | Pentazole Low temperature 15N NMR -N5 ring Protonation Azole |
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