FIELD: chemistry.
SUBSTANCE: invention relates to improved method of obtaining N,N,N'N'-tetramethylentylenediamine, which can be applied for obtaining hardeners of epoxy resins and polyurethanes, corrosion inhibitors, lubricants, textile-auxiliary substances, emulsifiers, disinfecting and bactericidal preparations. Method of invention lies in the following: 1,2-dichlorethane is dosed with mixing to heated up to 95-104°C 30-36% water dimethylamine solution, reaction mixture is stood at temperature 111-119°C and pressure 0.4-0.9 MPa during 1-2 hours with molar ratio DCE:DMA=1:3÷3.5. It is desirable to carry out synthesis with number of mixing device revolutions 800-3000 rev/min.
EFFECT: target products with increased output and of high quality, and reduction of process duration.
2 cl, 5 ex
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