John K. Saunders

A reinterpretation of beta, gamma, and delta substituent effects on 13C chemical shifts

It is shown that β-, γ-, and δ-substituent effects on 13C chemical shifts may be better understood by assuming that the upfield shifts caused by gauche γ-substituents are not due to non-bonded interactions introduced with the γ-group, but that they are due to the removal of the hydrogen on the β-substituent.

Determination of enantiomeric purity by an optically active nuclear magnetic resonance shift reagent of wide applicability

Addition of the europium complex of 3-heptafluorobutanoyl-(+)-camphor to racemates of alcohols, sulphoxides, an epoxide, and an aldehyde causes separation of n.m.r. signals of the enantioners.