ISSN:
0749-1581
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
15N NMR spectra of a number of 2-mercaptoazoles were obtained and the position of the iminothiol-thioamide prototropic tautomeric equilibrium was determined. Because of the large chemical shift difference of ca 100 ppm between the iminothiol and thioamide nitrogen atoms, the 15N chemical shifts of the S-methyl and N-methyl analogs of each tautomer provided reasonable chemical shift models for the same nitrogen atom in the tautomers. Only a small correction for an N-methyl effect was required.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260240803
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