FIELD: chemistry.
SUBSTANCE: invention relates to an improved method of producing N1,N1,N4,N4-tetramethyl-2-butyne-1,4-diamine, which can be used in fine organic synthesis, particularly for producing scarce polycyclic compounds, as well as in synthesis of biologically active substances. The method involves reaction of bisamine with excess gaseous acetylene in the presence of a VO(acac)2 catalyst at temperature 65-75°C and atmospheric pressure for 1-3 hours.
EFFECT: method enables to obtain N1,N1,N4,N4-tetramethyl-2-butyne-1,4-diamine from available reactants with quantitative output of 76-98%.
1 tbl, 3 dwg, 1 ex
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