FIELD: chemistry.
SUBSTANCE: sulphation of bitulin 3-propionate is carried out in N,N-dimethylformamide with mixture of sulfamic acid and urea at temperature 30-40°C for 2.0-3.0 hours, with product extraction being carried out by cooling of reaction mass, its dilution with water, extraction with butyl or isoamyl alcohol, water washing, processing of alcohol extract with the following concentration of alcohol layer and extraction of target product.
EFFECT: method improvement.
4 cl, 4 ex
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