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Selectivity of methylation of some new [1,2,3]triazolo[4,5-d]pyridazines and structure elucidation by 1H–15N NMR spectroscopy.
- Source :
-
Journal of Molecular Structure . Oct2002, Vol. 616 Issue 1-3, p73-78. 6p. - Publication Year :
- 2002
-
Abstract
- Alkylation of some selected [1,2,3]triazolo[4,5-d]pyridazines having five or more nitrogen atoms capable for alkylation was investigated. Pyridyl derivatives substituted also on the [1,2,3]triazole ring gave quaternary pyridinium salts, whereas in the case of the analogues compounds unsubstituted at the triazole moiety, the alkylation of the triazole ring was also observed. Unambiguous structure elucidation was provided by 1H–15N HMBC experiments which also allowed the assignment of the 15N NMR shifts. [Copyright &y& Elsevier]
- Subjects :
- *ALKYLATION
*NITROGEN
*PYRIDINIUM compounds
*METHYLATION
Subjects
Details
- Language :
- English
- ISSN :
- 00222860
- Volume :
- 616
- Issue :
- 1-3
- Database :
- Academic Search Index
- Journal :
- Journal of Molecular Structure
- Publication Type :
- Academic Journal
- Accession number :
- 11844413
- Full Text :
- https://doi.org/10.1016/S0022-2860(02)00320-4