FIELD: chemical technology. SUBSTANCE: method involves extraction of 1,3-diacyloxy-1,1,3,3-tetra-(hydrocarbyl)-distannoxane from mixture containing 1,3-diacyloxy-1,1,3,3-tetra-(hydrocarbyl)-distannoxane, sucrose-6-ester and polar aprotonic solvent. Method involves the following stages: a) contacting of indicated mixture in the presence of small water quantity with organic solvent which is essentially no mixing with water. Formed mixture for extracting has sufficient water content to induce effective distribution of 1,3-diacyloxy-1,1,3,3-tetra-(hydrocarbyl)-distannoxane from the first stage containing polar aprotonic solvent to the second stage containing organic solvent; b) stirring of mixture for extraction for the time and at temperature that are sufficient for two-phase mixture preparing where predominant quantity of 1,3-diacyloxy-1,1,3,3-tetra-(hydrocarbyl)-distannoxane in the extracting mixture at the second stage. In fact, all sucrose-6-ester in extracting mixture is in the first phase; c) separation the first and the second phases. EFFECT: improved method of extraction. 6 cl, 3 tbl
