FIELD: chemical industry.
SUBSTANCE: invention relates to a method for producing diphenylphosphinylmethanehydrazide formula Ph2P(O)C(O)NHNH2. The method includes adding isobutyric aldehyde dimethyl acetal with cooling and stirring to a mixture of diphenylchlorophosphine and alkylchloromethane in toluene or without it, raising the temperature to room temperature and stirring until the diphenylchlorophosphine is completely consumed, removing volatile components by vacuum, adding benzene and cooling hydrazine to the formed alkyldiphenylphosphinylmethanoate and maintaining the reaction mixture at room temperature until the completion of the reaction.
EFFECT: improvement of the method for obtaining diphenylphosphinylmethanehydrazide due to in situ synthesis of O-methyldiphenylphosphinite and carrying out the synthesis in one boiler.
1 cl, 2 ex
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