PREPARATION OF POLYHALOISOALKOXYALKANOIC ACIDS AND DERIVATIVES THEREOF

摘要

Antimony pentahalides selected from the group SbC15, SbF5 and SbF3C12 catalyze the oxidation of polyhaloisoalkoxy-alkyl iodides with SO3 or oleum. The products of the reaction are the corresponding acid halides and pyrosulfuryl halides which may be converted to the free acids or acid derivatives. The acids, salts and esters thereof are surface active. The acids are further useful as stain repellent agents.