## Abstract Unusual behaviour was observed in the study of the ^17^O, ^13^C and ^1^H NMR and IR spectra of crowded (1‐adamantyl)alkyl ketones. As the size of the alkyl substituent is increased, abnormal upfield chemical shifts in the ^13^C NMR and downfield shifts in the ^17^O NMR of the carbonyl g
1H, 13C, 17O NMR and IR spectroscopic study of all methyl chloropropanoates
✍ Scribed by Erkki Kolehmainen; Ilpo O. O. Korhonen; Reijo Kauppinen
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 365 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
^1^H, ^13^C and ^17^O NMR chemical shifts, ^n^J(H,H) and ^n^J(C,H) spin‐spin coupling constants and IR absorption maxima and intensities for the most characteristic bands of methyl propanoate and all eleven chloropropanoic acid methyl esters are reported.
📜 SIMILAR VOLUMES
## Abstract ^1^H, ^13^C and ^17^O NMR spectra for 22 substituted nitropyridines were measured and their ^1^H NMR spectra were analysed. The most significant variations in the NMR parameters are found for isomeric hydroxy derivatives, owing to the possibility of keto–enol tautomerism. The prevalence
## Abstract ^1^H, ^13^C and ^17^O NMR chemical shifts and ^__n__^__J__(H,H), ^1^__J__(C,H) and ^3^__J__(C‐6, H‐formyl) spin—spin coupling constants of chlorinated vanillins (3‐methoxy‐4‐hydroxybenzaldehydes) were determined. The variation in the long‐range ^4^__J__(H,H) value between the formyl pro
## Abstract Isomeric ring substituted monofluoro‐(__E__)‐3‐phenylpropenals (cinnamaldehydes) were synthesized in order to provide, with the NMR‐active ^19^F nucleus, an insight into the influence of substituents and the transmission of electronic effects between the aromatic ring and the side‐chain
The 17O, 13C and 1H NMR spectra of a number of 1,2-dialkoxyethenes R1OCHxCHOR2 were recorded. The O atoms, in particular those of the E forms, are strongly shielded relative to the 17O nuclei of the corresponding alkyl vinyl ethers Moreover, in compounds of the type ROCHxCHOMe, the di †er-ROCHxCH 2