Process for the oxidation in the air of keto-acids in an organic diluent melt with a manganese catalyst.

摘要

A process for oxidizing ketoacids in an organic diluent melt solution with air (molecular oxygen) in the presence of a manganese salt catalyst. The process provides 85% to 95% yields of selected diacids based on the reacted ketoacids. The preferred process provides high yields of dodecanedioic, undecanedioic and decanedioic diacids from 12-ketostearic acid (12-KSA) in a stearic acid diluent melt solution.