Adducts with an Inherently Chiral Addition Pattern

Adducts with an Inherently Chiral Addition Pattern 

Various bis-and tris-adducts discussed so far, such as 6-13, belong to one of these subgroups. However, when achiral addends such as malonates are used the 

Their isolation by flash chromatography on silica gel was comparatively easy. The CD spectra of related pairs of diastereomers whose addition pattern represent pairs of enantiomers, reveal pronounced Cotton effects and mirror image behavior. It is the chiral arrangement of the conjugated Jt-electron system within the fullerene core that predominantly determines the chiroptical properties. Adducts with a C2- 

The relative configuration within the precursor trisadducts is retained in the inherently chiral C -symmetrical hexakisadducts, while the absolute configuration has changed. The Cotton effects of such hexakisadducts are much less pronounced than those of their precursor tris-adducts, since the local symmetry of the fullerene core is very close to Tjj. 

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