3 a ) and (3c) or (Sf) formed as minor products on reaction ( I ) with methyl acryiate or methyl propiolate were synthesized isomer-free from the diester (1') and characterized. The data for the compounds prepared are summarized in Table .
Conformational equilibria in isomeric methylcyclohexanols studied by 13C NMR spectroscopy
✍ Scribed by O. A. Subbotin; N. M. Sergeyev; V. N. Chlopkov; N. G. Nikishova; Yu. G. Bundel
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 319 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
The conformational equilibrium constants for isomeric methylcyclohexanols (cis‐ and trans‐1,2‐, 1,3‐ and 1,4‐methylcyclohexanols) have been determined from peak area measurements in the completely proton decoupled low temperature ^13^C NMR spectra of the individual conformers. The ^13^C chemical shifts are discussed in terms of the additive model.
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