Proton affinities of vinyl and allyl anions of cyclic vinyl ethers and cycloalkenes obtained at the B3PW91 level with Davidson's modification of basis set aug-cc-pVDZ are presented to further explore deprotonation reactions of cyclic vinyl ethers. The presence of an oxygen atom ยขx to a vinyl anion h
Structure of protonated cyclic vinyl ethers
โ Scribed by J.-P. Morizur; C. Monteiro; J. Tortajada; G. Bouchoux
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 190 KB
- Volume
- 21
- Category
- Article
- ISSN
- 1076-5174
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The "0 NMR spectra of a number of heterocyclic vinyl ethers were recorded in CDCI, and DMSO-d, solutions. The oxygen chemical shifts reveal substantial differences in the strength of p-n conjugation between the five-and six-membered ring compounds, especially between those with an exocyclic C=C bond