## Abstract Some bridgehead nitrogen compounds possessing the CH(Me)‐bridgehead NC(O) system have been synthesised and their configurations assigned. The chemical shifts of the proton geminal to the methyl group provides evidence for the existence of a deformed chair conformation for the methyl su
Proton magnetic resonance studies of compounds with bridgehead nitrogen atoms—XXIV: The stereochemistry of octahydroimidazo [1,5-a] pyridine and of some N-acetyloctahydroimidazo [1,5-a] pyridines
✍ Scribed by T. A. Crabb; P. J. Chivers; R. F. Newton
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 297 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
Octahydroimidazo[1,5‐a]pyridine is shown to preferentially adopt the trans‐fused ring conformation in solution at room temperature. The NMR spectra of the rotational isomers of some N‐acetyloctahydroimidazo[1,5‐a]pyridines and N‐acetyloctahydro‐1H‐pyrido[1,2‐c]pyrimidine are described, and the stereochemistry about the N‐acetyl bonds and the cis or trans nature of the ring fusion defined.
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