Tetrahedron p. 4209 - 4220 (1983)
Update date:2022-08-16
Topics:
Roussel, Christian
Balaban, Alexandru T.
Berg, Ulf
Chanon, Michel
Gallo, Roger
et al.
The effects of the shape of a methyl group on reactivity, which cannot be accounted for by considering a methyl group as a spherical subtituent with the appropriate van der Waals radius, was considered in kinetics of alkylation of substituted pyridines and barriers to rotation and ground state conformations of an isopropyl group attached to a planar framework.The perturbation of a methyl group by an o-methyl group is accounted for by a unique conformational explanation which involves the polyhedral shape of the methyl group.
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