β Scribed by Dieter Heymann; Sergei M. Bachilo; R. Bruce Weisman
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract The biscyclopropanation of C~70~ with bromomalonate anions shows a strong preference for three regioisomers, which can be separated by column chromatography. The structures of the three regioisomers were determined by ^13^CβNMR spectroscopy. The two cyclopropanation reactions take place
The electronic and vibrational structures of C,, and C,,, have been calculated at the PM3 semiempirical level. C, has a partially delocalized structure, while C,, has both a localized set and a delocalized set of MOs. As with AM1 and MNDO, PM3 predicts the heat of formation of C,, to be greater than
## Abstract Substitution of 3βchloroβ3,5βbis(chloromethyl)β5βmethylβ1,2,4βtrioxolane (3) with allyl alcohol gave the corresponding diastereomeric allyloxyβsubstituted ozonides 4, which were converted into diozonides 7 by ozone treatment. Substitutions of 3 with ethanediol or with 1,3βpropanediol ga