摘要:
In reactions of aryloxiranes XC6H4(3)CH(O)CH2 with arenesulfonic acids YC6H4SO3H in a mixture of dioxane with diglyme (1: 1) at 265 K the nonadditive effects of substituents X and Y were strongly revealed, therefore it was possible to observe experimentally the isoparametricity phenomenon: In the isoparametric point sigma(X) (IP) = 1.42 with respect to the X substituent constant the rate of the oxirane ring opening did not depend on the structure of Y (rho(Y) (X) = 0).