Diastereomeric differentiation of sulphone oxygens by 17O n.m.r. spectroscopy

Abstract
Magnetic non-equivalence of diastereotopic oxygens in phenyl 1-phenylethyl and phenyl 1-phenyl-propyl sulphones has been observed in their 17O n.m.r. spectra and a configurational assignment has been made by stereospecific labelling with 17O.

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