Abstract
Natural abundance 17ONMR spectra of acetals, ketals and 1,3-dioxolane derivatives have been measured. The mutual effect between oxygen atoms on 17O chemical shift is studied. The variations are tentatively explained in terms of changes in the conformation of the compounds. The 17O chemical shifts of unsaturated ethers were also studied. The 17O deshielding is found to be related to the β carbon shielding.
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