NMR studies in the heterocyclic series XXIV—1H, 13C and 15N study of 15N labelled indazoles |
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| Authors: | Alain Fruchier Valdo Pellegrin Rmy Schimpf Jos Elguero |
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| Institution: | Alain Fruchier,Valdo Pellegrin,Rémy Schimpf,José Elguero |
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| Abstract: | The 15N chemical shifts and 1H? 15N and 13C? 15N coupling constants of nine monolabelled indazoles were measured and assigned. The experimental values are discussed in terms of the indazolic and iso-indazolic structures, and compared with literature data for other related heterocycles. All the results are consistent with an N-1(H) tautomeric structure for indazole in DMSO-d6. |
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