FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to the improved method of synthesis of vinyl-n-butyl ester used in medicine and technology as thickening film-forming substances. Method involves dealkoxylation of di-n-butylacetal at heating in the presence of catalytical system consisting of a mixture of tributylamine hydrochloride taken in the mole ratio = 1:(2-3) in the amount 2.5-5% of di-n-butylacetal mass. EFFECT: improved method of synthesis. 1 tbl, 3 ex
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