Polyene acids. Part IX. Proton magnetic resonance parameters of the muconic esters and mucononitriles
- 1 January 1966
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society C: Organic
- p. 387-389
- https://doi.org/10.1039/j39660000387
Abstract
From the spectra of the title compounds (at 60 Mc./sec.), proton spin-spin coupling constants and chemical shifts are derived, and an error in previous values for the all-trans-ester is corrected. There is the expected alternation in sign of the couplings. Their values confirm the geometrical configurations of these dienes, and indicate that the molecules are coplanar: thus Jαδ is largest for the all-cis-isomers. Infrared data for the muconic esters are recorded.Keywords
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