METHOD OF REGIOSELECTIVE SYNTHESIS OF MONOHALOGENDERIVATIVES OF 1,2-, 1,7-, 1,12-DICARBA-CLOSO-DODECARBORANES(12) WITH APPLICATION OF ULTRASOUND ACTIVATION Russian patent published in 2014 - IPC C07F5/02 

FIELD: chemistry.

SUBSTANCE: invention relates to method of obtaining monohalogenderivatives of 1,2-, 1,7-, 1,12-dicarba-closo-dodecarboranes(12). Method includes interaction of o(m,p)-carboranes with halogenating agents. As the latter used are N-halogenimides (amides): N-halogen-succinimides, 1,3-dihalogen-5,5-dimethylhydantoins, trihalogen-isocyanuric acids, N-halogen-arylsulfonamides and their sodium salts, N-halogenphthalimides, where halogen = Cl, Br, I; aryl = phenyl, p-tolyl, in the medium of acidic organic solvent. As solvent applied are monobasic liquid organic acids of aliphatic series R-COOH, where R=H, C_nH_2n+1, C_nF_2n+1, n=1-3. The process is carried out with application of ultrasound activation at temperature 60-80°C for 3-5 hours.

EFFECT: invention makes it possible to reduce energy consumption.

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