Long-range couplings were observed between protons attached to c-2 and c-5 of the 4-imidazolidinone ring. Smce 45(25) has a measurable value only for a trans arrangement of H-2 and H-5, this coupling can be utilized as an easy method of identification of 4-imidazolidinone stereoisomers.
The highly resolved 1H NMR spectrum of thioanisole. Precise long-range couplings to the methyl protons
β Scribed by Ted Schaefer; James D Baleja
- Publisher
- Elsevier Science
- Year
- 1984
- Weight
- 264 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0022-2364
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