The synthesis of azelaic acid through oxidation of oleic acid with the aqueous potassium permanganate(KMnO4) has been studied by using the phase transfer catalyst (PTC).

• 采用高锰酸钾作为氧化剂、分别使用四丁基溴化铵、四乙基溴化铵和苄基三乙基氯化铵作为相转移催化剂，考察了从油酸氧化制备壬二酸的行为。