Process for preparing benzenesulfonate salts

Reference Number: N 03-07

Inventors: Dumas, Donald J.; Subramanyam, Vinayakam

Owner: NISTAC

USPTO Link: 5069828

Invention Summary

An improved process for preparing benzenesulfonate salts, such as 4-nonanoyloxybenzenesulfonic acid, sodium salt, from an appropriately substituted acid chloride or chloroformate and a hydroxybenzenesulfonic acid in which the reaction is conducted in the presence of a phase transfer catalyst selected from quaternary ammonium and quaternary phosphonium salts.