## Abstract The ^13^C and ^1^H NMR spectra of a series of methiodides of monoβ and diβCβmethyl derivatives of 1βmethylβ4βphenylβ4βpiperidinols are reported and chemical shift data analysed in terms of configurations and conformations of isomeric sets. Results demondtrate the value of quaternary sal
The Conformational Features of Some Biologically Active N-Acylprolyltyrosinamides Studied by 1H NMR Spectroscopy
β Scribed by N. I. Zaitseva; V. P. Lezina; A. N. Ignashin; V. K. Briling; T. A. Gudasheva
- Book ID
- 110315823
- Publisher
- Springer
- Year
- 2001
- Tongue
- English
- Weight
- 96 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0091-150X
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Pyridofuroxan ([1,2,5]oxodiazolo [3,4-b]pyridine 1-oxide) undergoes isomerization between the N1oxide and N3-oxide forms which can be observed by the 1 H, 13 C and 15 N NMR spectroscopy but not by 14 N and 17 O NMR at ambient and low temperatures. The rearrangement becomes slower at low temperatures
## Abstract The structural analysis of carbamates derived from 2β(Ξ±βfuryl)benzaldoximes and 2β(Ξ±βfuryl)benzyl alcohols was carried out by ^1^H and ^13^C NMR spectroscopy. The conjugative and steric effects of alkyl substituents introduced on the benzene rings were found to modify the relative orien