Direct determination of tautomerism in purine derivatives by low-temperature NMR spectroscopy

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Authors	SEČKÁŘOVÁ Pavlína MAREK Radek MALIŇÁKOVÁ Kateřina KOLEHMAINEN Erkki HOCKOVÁ Dana HOCEK Michal SKLENÁŘ Vladimír
Year of publication	2004
Type	Article in Periodical
Magazine / Source	Tetrahedron Letters
MU Faculty or unit	Faculty of Science
Citation
web	http://www.sciencedirect.com/science/journal/00404039
Field	Organic chemistry
Keywords	purine;; NMR; tautomerism
Description	An investigation of the purine derivatives N,N-dimethyl-N'-(7(9)-H-purin-6-yl)-formamidine, 6-chloropurine and 6-methoxy purine at low temperatures by NMR spectroscopy has been carried out. Low temperature enabled us in two cases to detect the separate NMR signals of N7-H and N9-H tautomers.
Related projects:	Biomolecular Center