## Abstract In order to perform the analysis of the components contained in fossil fuels, carbon assignments of new methylated derivatives of tetralin and indan were obtained. Their chemical shifts were calculated by applying additivity rules.
13C NMR spectroscopy of four tertiary methyl norbornenols and norbornanols
โ Scribed by Jaakko Paasivirta; Katri Laihia
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- English
- Weight
- 209 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
Carbon chemical shifts and direct ^13^C๏ฃฟ^1^H coupling constants of 2โendoโmethylโ5โnorbornenโ2โexoโol, 2โexoโmethylโ5โnorbornenโ2โendoโol, 2โendoโmethylnorbornanโ2โexoโol and 2โexoโmethylnorbornanโ2โendoโol have been measured from single samples using a dual probe pulse Fourier transform method.
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## Abstract The preferred conformation of 8โmethylโ__cis__โthiahydrindane has been both estimated by ^13^C NMR chemical shifts and determined by low temperature ^13^C NMR spectroscopy to be the conformer with the methyl group equatorial with respect to the cyclohexane ring. This result is in disagr
Despite the large number of clerodanes isolated as natural products in the last decade, the correct 13C NMR chemical shift assignments of some carbons are still in doubt. In order to provide unambiguous assignments of the chemical shifts of clerodane diterpenes, a complete 13C NMR spectral analysis