Mpa. Campos et al., Internal rotation processes in endo-cis-N-(o-tolyl)bicyclo[2.2.1]heptene-2,3-dicarboximide and its oxidation products, MAGN RES CH, 37(4), 1999, pp. 317-321
Atropoisomerism, a type of isomerism associated with restricted rotational
properties about certain bonds, is present in endo-cis-N-(o-tolyl)bicyclo[2
.2.1]heptene-2,3-dicarboximide and its oxidation products, the correspondin
g diol and diacid. These three compounds were studied by variable-temperatu
re NMR and molecular modelling. Small differences in carbon and proton chem
ical shifts can be attributed to slight changes in geometry due to interact
ions of rotating groups. Copyright (C) 1999 John Wiley & Sons, Ltd.