Kinetic data are reported regarding the esterification of 1, 4-dichlorobutane with sodium formate catalyzed by quaternary ammonium salts as a model for reactions in series, under solid-liquid phase transfer conditions. The process was found to follow a consecutive first- order mechanism of the general type A→ R→ S. The reactivity of the quaternary ammonium salts with regard to the counteranion was Cl-> Br-> 1-> HSO4-. The reaction rate was ...