The proton magnetic resonance of some coumarins and 2,2-dimethylchromens: further examples of inter-ring spin–spin coupling
- 1 January 1967
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society C: Organic
- p. 2000-2001
- https://doi.org/10.1039/j39670002000
Abstract
A study of the proton magnetic resonance of a number of coumarins and 2,2-dimethylchromens has revealed the presence of inter-ring spin–spin coupling in coumarins and confirmed the existence of a similar long-range coupling in chromens.Keywords
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