METHOD FOR PURIFICATION OF 2-SUBSTITUTED IMIDAZOLES Russian patent published in 1996 - IPC

Abstract RU 2054420 C1

FIELD: organic chemistry. SUBSTANCE: 2-substituted imidazoles are purified by adsorption resinous impurities. Said process is carried out by boiling aqueous solution of raw imidazole with activated coal followed by its recrystallization. The latter process takes place of the same aqueous solution after its partially evaporation. EFFECT: improves efficiency of method.

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RU 2 054 420 C1

Authors

Vilane I.R.

Stoke B.K.

Gitis K.M.

Isaguljants G.V.

Dates

1996-02-20—Published

1993-06-16—Filed