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Institut Organicheskoi Khimii Akademii Nauk Ukrainskoi Ssr

Kievsky Nauchno-issledovatelsky Institut Otolaringologii

Alexandr V Kirsanov

Lev Moiseevich Yagupolsky

Valery Y Semeny

Ninel G Feschenko

Konstantin N Bildinov

Nikolai N Romanov

Evgeny I Klochkov

Viktor N Pisanko

Jury P Kovtun

Eduard V Gjulling

Oleg F Melnikov

Larisa A Djugovskaya

Marina B Sambur

Mikhail I Lyapunov

Dmitry I Zabolotny

Petr V Serebrov

Viktor I Litus

Alexei I Tolmachev

Vladimir N Zavatsky

Alevtina A Goncharenko

Nikolai I Liptuga

Novel compounds, viz. 6-phenyl-2,3,5,6-tetrahydroimidazo-[2,1-b]-thiazole derivatives have the following general formula: ##STR1## wherein R is CH.sub.2 COOCH.sub.3, CH.sub.2 COOC.sub.10 H.sub.21, CH.sub.2 CONH.sub.2 X is Br. The compounds possess immunomodulating, antibacterial and antiviral activity.

6-Phenyl-2,3,5,6-tetrahydroimidazo-[2,1-b]-thiazole derivatives

Novel compounds, viz., tris(perfluoroalkyl)phosphine oxides have the following general formula ##STR1## where R.sub.F is a perfluoroalkyl of normal and iso-structure, having from 2 to 8 carbon atoms. The method of preparing said compounds consists in that trialkylphosphine oxide having the general formula R.sub.3 PO, where R = C.sub.8 -C.sub.8, is fluorinated electrochemically in a medium of anhydrous hydrogen fluoride; whenever trialkylphosphine oxides having the general formula R.sub.3 PO, where R = C.sub.5 - C.sub.8, are used as the starting material, they are first brominated in a medium of anhydrous hydrogen fluoride, with subsequent isolation of the end product. The proposed novel compounds can be used as solvents for salts of rare earth elements and as complexing agents in the separation of valuable metals.

Method of tris(perfluoroalkyl)phosphine oxides

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Kyiv, Ukraine

Alexandr V Kirsanov