Na-dioctyl-sulfosuccinate, namely Aerosol OT, obtained from dioctylmaleate and NaHSO3, has good wettability. The peroxide-catalyzed addition of diethylphosphite to dioctylmaleate readily afforded dioctyl- (α-diethylphosphono) -succinate. One of the ester groups of phosphonoradical can be saponified at room temperature, and the resulting mono Na-salt dissolves in water and shows good surface activity.
