FIELD: chemistry.
SUBSTANCE: invention claims a new method of obtaining 3,5-diamino-6-(2,3-dichlorphenyl)-1,2,4-triazine of high purity degree by reaction of 2,3-dichlorbenzoylcyanide with 1-2 mol equivalents of dimethylase aminoguanidine salt in the presence of 3-6 mol equivalents of methanesulfoacid, with further addition of 2-5 mol equivalents of magnesium oxide to the reaction mix. The process is performed at 50-80°C, and target product is recrystallised from acetone.
EFFECT: improved efficiency of compounds.
5 cl, 3 ex
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