In previous publications,* one of us has computed that part of the effect of substituents on the velocity of saponification which can reasonably be considered electrostatic in origin. Many cases are explicable on an electrostatic basis; the extraordinarily slow rates of saponification of ethyl p-aminobenzoatea and ethyl P-dimethylaminobenzoate, however, cannot be ascribed exclusively to the effect of the dipole moment of the amino group. The ...
![bis[4-(dimethylamino)-3,5-dimethylphenyl]methanone Structure](https://image.chemsrc.com/caspic/134/40759-55-5.png)