## Abstract The complementary NMR techniques of long‐range W‐plan coupling and substituent shift effects on nearby olefinic hydrogens have been used to assign the stereochemistry of 3‐phenyl‐ and 3‐acetyl‐dehydroisoquinuclidines (2 to 5).
1H NMR long-range coupling in the assignment of stereochemistry to 4-imidazolidinones
✍ Scribed by T. Połoński
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 323 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
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.
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