Abstract
A series of 8-substituted bicyclo [3.2.1] oct-6-en-3-ones (of type i) possessing various R1 and R2 groups were prepared and characterized. The conformations of the possible isomers of 1-4 were assigned according to the following three methods: (a) NMR spectrum, (b) time averaged precise metal ion location within the Eu (dpm)3-carbonylic compound complex, (c) UV spectra. Comparison of the chair and boat conformers by UV spectra showed that interactions between the double bonds and the carbonyl occurred in both cases, although to different extents, the ε being dependent on R1 and R2. The fore-mentioned interaction exists even in both series of the C6C7 dihydro derivatives.
Original language | English |
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Pages (from-to) | 109-115 |
Number of pages | 7 |
Journal | Tetrahedron |
Volume | 30 |
Issue number | 1 |
DOIs | |
State | Published - 1974 |