Nuclear magnetic resonance studies. XVI. Oxygen-17 shieldings of some substituted acetophenones

Abstract

The ¹⁷O spectra of some ortho- and para-substituted acetophenones were determined to examine the effect of substituent polarity and steric hindrance on the acetyl oxygen shieldings. The results are compatible with proposals previously advanced on the basis of the ¹³C shielding data for these compounds.