FIELD: chemistry.
SUBSTANCE: invention relates to the chemistry of organophosphorus compounds with a P-C bond, and in particular to a method for producing 2,3-dichlorotetrahydrofuryl-3-phosphonic acid dichloride of formula (1) by treating an adduct of tetrahydrofuran and phosphorus pentachloride with a derivative of sulfuric acid in an inert organic solvent, characterized by the following: hydroxylamine sulfate is used as a derivative of sulfuric acid and the process is carried out at room temperature.
EFFECT: new method for obtaining 2,3-dichlorotetrahydrofuryl-3-phosphonic acid dichloride of formula (1) with high yield and purity is developed, which can be used as intermediates in organophosphorus synthesis.
1 ex
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