METHOD OF PRODUCING N-NITRO-5-AZIDOMETHYLOXAZOLIDINE-1,3 Russian patent published in 2012 - IPC C07D263/04 

FIELD: chemistry.

SUBSTANCE: invention relates to chemistry and the technology of producing heterocyclic compounds of the oxazolidine family, specifically N-nitro-5-azidomethyloxazolidine-1,3 which is extensively studied under the name MANO-5 as an energetic polymer plasticiser. The method of producing N-nitro-5-azidomethyloxazolidine-1,3 is realised via successive reaction of a sulphamate with epichlorohydrin and formaldehyde, followed by nitration in an acetic anhydride medium and azidation in a solvent medium. The sulphamate used is triethylammonium sulphamate and the formaldehyde source used is a mixture of paraformaldehyde and acetic acid. Azidation is carried out in the presence of a phase-transfer catalysts in an aqueous medium. Triethylammonium sulphamate and epichlorohydrin react in equimolar ratios without using a solvent. The phase-transfer catalyst used is tretralkylammonium salts, e.g., tetrabutylammonium bromide or triethylbenzylammonium chloride.

EFFECT: easy implementation of the process.

5 cl, 1 ex