FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing 2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione (glycoluril). The reaction takes place at 80°C for 60 minutes, where concentrated sulphuric acid is used in an aqueous medium and reagents are taken in the following molar ratios: glyoxal 2.0; urea 4.0; sulphuric acid 0.4; water 12, and the freshly prepared glyoxal solution is added while stirring for 20 minutes, after which the mixture is stirred for 40 more minutes.
EFFECT: novel method of producing glycoluril, which increases output of the end product and is simpler.
1 cl, 1 tbl, 1 dwg
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