The carbon-13 nuclear magnetic resonance spectra of some α-spirocyclopropyl ketones and related cyclohex-2-en-1-ones and 2-ethylidenecyclohex-3-en-1-ones

13C NMR spectra of 8-aryl-8-azabicyclo[3

13C NMR spectra of 8-aryl-8-azabicyclo[3.2.1]oct-3-en-2-ones and related compounds

✍ Alan R. Katritzky; Nicholas Dennis; Gebran J. Sabongi 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 410 KB

## Abstract Carbon‐13 NMR spectra of various 8‐aryl‐8‐azabicyclo[3.2.1]oct‐3‐en‐2‐ones and other related compounds, including tropinone, were determined, and the predominant conformation at the bridgehead nitrogen was established. The full assignment of resonances from proton decoupled and coupled