A multinuclear magnetic resonance study
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P. N. Sanderson; R. D. Farrant; J. C. Lindon; P. Barraclough
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Article
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1990
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John Wiley and Sons
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English
β 337 KB
## Abstract ^1^H and ^13^C NMR spectra are reported and assigned for imidazo[1,2β__a__] pyrazine and for __N__β1βmethylβ and __N__β7βmethylβimidazo[1,2β__a__] pyrazinium iodides. The effect of protonation on the chemical shifts of the parent molecule is demonstrated, and through the use of ^13^C an