FIELD: chemistry.
SUBSTANCE: invention is related to derivatives of nitrosulfobenzamide of formula (I) 
, in which R1 - alkyl with 1 - 6 carbon atoms, R2 - alkyl with 1 - 6 carbon atoms; Q - is hydrogen or cation of alkaline metal, and also to method of their preparation by interaction of amine of formula NHR1R2 or its salt, with diacid of formula (III) 
or its salt, where Q1 and Q2 are identical or different and stand for hydrogen or alkali metal cation.
EFFECT: compounds according to the present invention may be useful for production of sulfonylureas and their precursors, such as for instance sulfochlorides or sulfonamides.
10 cl, 5 ex
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