FIELD: organic chemistry. SUBSTANCE: product: substituted phenylsulfonyltriazinylureas and their salts of the formula (I) 
where R - Cl (1a) or COOCH (1b). M. p. of 1a and 1b are 178-180 and 170-172 C, respectively, yield is 90-91%. Reagent 1: substituted phenylsulfonylisocyanate. Reagent 2: 2-amino-4-dimethylamino-6-cyclohexylideneiminohydroxy-1,3,5-triazine. Reaction conditions: in organic solvent, in the presence of catalytic quantities of tetramethylethylenediamine. EFFECT: improved method of synthesis. 1 tbl
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