## Abstract The solution conformations of 1‐benzyl‐5,5‐diphenyl‐2,4‐dioxo‐3‐imidazolidineacetic acid (AC) and 3‐(2,4‐dichlorobenzyl)‐5,5‐diphenyl‐2,4‐dioxo‐1‐imidazolidine acetic acid (AD) were studied by proton and carbon NMR spectroscopy. The two drugs have different pharmacological activities, A
The thermal rearrangement of tetra-arylated dihydrosemibullvalene derivatives, and 1H/13C NMR-structure correlations
✍ Scribed by S. Greenfield; K. Mackenzie
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- French
- Weight
- 248 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
A systematic study of the thermal cyclisation of isomeric di-p-anisyldiphenylcyclooctatriene derivatives, and of the facile isomerisation of the resulting dihydrosemibullvalenes, with 'H/13C nmr-structure correlations, supports earlier proposals for rearrangement mechanism.
In earlier papers 1,2,3 we described the reaction sequence illustrated in Scheme 1 4
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