FIELD: organic chemistry. SUBSTANCE: monoesters have common formula where R is 2,4-diethyloctyl or cetyl, m=2, 4, 6, 8, 10. Isododecyl or cetyl alcohol is affected by treatment with propylene oxide. The process is carried out in the presence of potassium hydroxide at 140-160 C. Thus prepared polyoxypropylene glycol ether is affected by interaction with maleic anhydride. The process is carried out at 95-100 C, it is followed by treatment of reaction mass with aqueous solution of sodium sulfite. Said process takes place by boiling in ethanol medium. EFFECT: improved efficiency.
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