From the data, it is clear that chiral induction in this series is not very effective, with maximum de's of (16 ± 5)%. There is no obvious trend in the degree of chiral induction with the structure of the chiral group, although this may simply be lost in the significant relative uncertainties. If nothing else, it does not appear that sterics play a significant role in chiral induction in this series. That is, the o-phenylene helix is fairly far from the imide and presents a mostly featureless surface with no obvious features that would interact differently with different arrangements of groups about the chirality center.