FIELD: chemistry.
SUBSTANCE: invention relates to improved synthesis of penta-alkoxides of niobium and tantalum through re-esterification with n-butyl alcohol of corresponding low-molecular alkoxides. The re-esterification object is penta-methoxides of niobium (NbMe) and tantalum (TaMe), which enables exclusion of benzene from the re-esterification process and reduction (against stoichiometry) of the amount of butanol used in the process by three times. Methanol released during the reaction and excess butanol is distilled at a time-varying rate.
EFFECT: method of producing penta-butoxides of niobium and tantalum is disclosed.
2 cl, 2 ex, 1 tbl
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