... All nucleophiles studied in the reaction with ester V gave linear plots of kobsd us. [Nf] from whose slopes was calculated kz (Table 11). ... kobsd - khydr = kz'[N~l[K,/(& d- OH)] = MNf] Journal of the American Chemical Society 91:11 / May 21, 1969 Page 5. 2997 Table III. ...