ISSN:
0030-4921
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The benzene-induced solvent effects upon the proton chemical shifts of various pyrazines, pyrimidines and their N-oxides are described. Larger chemical shift effects, implying closer benzeneheterocycle association, are noted in the N-oxides as compared to the non-oxidized heterocycles.The solvent-induced chemical shift changes can be used to establish the site of N-oxidation in those instances where different isomers can be formed.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1270030207
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