The "C NMR spectra of nine dichlorinated bicyclo[2.2.l]heptanes (norbornanes) have been measured and assigned. The pairwise effects of chlorine substituents which cause deviations from the additivity of single-snbstituent effects were investigated and are discussed. The largest effect found is the h
Effect of substituents on the 13C NMR chemical shifts of 2-R-3-methylbenzothiazolium quaternary salts and 2-R-benzothiazoles
✍ Scribed by Eva Solčániová; Igor Čulák
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 150 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
The 13C chemical shifts of 2-R-3-methylbenzothiazolium quaternary salts and the corresponding ZRbenzothiazoles are presented.
KEY WORDS I3C NMR Substituent effects 2-R-3-methylbenzothiazoliurn quaternary salts 2-R-benzothiazoles
reveal some systematic trends in the 13C data for these comr>ounds. The 13C NMR spectra of the correspond-
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