Conformation and configuration of some α,β-unsaturated carbonyl compounds from their nuclear magnetic resonance spectra
- 1 September 1969
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 47 (17) , 3137-3146
- https://doi.org/10.1139/v69-519
Abstract
Nuclear magnetic resonance spectra were recorded for 95 styrenes with two functional groups (A and B) on the β-carbon atom where A, B are COCH3, COCH3; COCH3, CO2C2H5; CO2C2H5, COCH3; CO2C2H5, CO2C2H5; CO2C2H5, CN; and CO2C2H5, H. The chemical shifts of the ethylenic hydrogen and the hydrogens of the functional A and B groups were examined in detail to determine the effects of ring substituents. The configuration of the unsymmetrical styrenes and the conformation of the A and B groups as deduced from the spectra are discussed.Keywords
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