Ag. Martinez et al., SPATIAL ORIENTATION EFFECTS ON THE SIGMA-ASSISTANCE IN THE SOLVOLYSISOF METHYL-SUBSTITUTED 1-NORBORNYL TRIFLATES, Tetrahedron letters, 35(39), 1994, pp. 7285-7288
The sigma-participation of the C-2-C-3 and C-4-C-7 bonds in the solvol
ysis of methyl substituted 1-norbornyl triflates is evaluated by appli
cation of the additivity principle. It is concluded that the sigma-par
ticipation of the C-2-C-3 bond is dependent on the spatial orientation
of methyl substituents.