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Institut Organicheskoi Khimii

Vladlen Vasilievich Malovik

Miron Onufrievich Lozinsky

Lev Moiseevich Yagupolsky

Sergei Vasilievich Sokolov

Alexei Ivanovich Ponomarev

Viktor Mikhailovich Belous

Ljubov Antonovna Alexeeva

Jury Pavlovich Dolnakov

Julia Alexeevna Larionova

Vsevolod Volfovich Berenblit

Alexandr Leibovich Klebansky

Boris Efimovich Gruz

Valery Y Semeny

Tatyana Ivanovna Rymareva

Anatoly Kirillovich Ankudinov

Rufina Mikhailovna Ryazanova

Ninel G Feschenko

Alexandr Vasilievich Karlin

Vasily Danilovich Lobkov

Jury V Kandul

Mikhail D Pivovarov

Ivan K Mazepa

Georgy A Golik

Yaroslav P Demchenko

A novel compound bis-(N,N-dimethyl-N-carbodecyloxymethyl-N-ethyleneammonium)-sulphide dichloride of the formula ##STR1## A method for preparing said novel compound comprising quaternization of bis-(.beta.-dimethylaminoethyl)-sulphide with monochloroacetic acid decyl ester, molar ratio of said reagents being not more than 1:2. A chemotherapeutic antimicrobial preparation comprising said novel compound as an active principle in combination with a pharmaceutical carrier. A plant growth regulator in the form of an aqueous solution of said novel compound in a concentration of from 0.0001 to 0.1 wt. %.

Bis-(N,N-dimethyl-N-carbodecyloxymethyl-N-ethylene-ammonium)-sulphide

The present invention relates to fluorosiloxane diols of the formula ##STR1## where: R.sub.F = OCF.sub.3, OC.sub.2 F.sub.5, OC.sub.2 F.sub.4 OCF.sub.3, C.sub.2 F.sub.4 OCF.sub.3, C.sub.3 F.sub.7,

Fluorosiloxane diols and method of producing same

The present invention relates to fluorosiloxane rubbers of the formula: ##STR1## wherein: R.sub.F = OCF.sub.3, OC.sub.2 F.sub.5, OC.sub.2 F.sub.4 OCF.sub.3, C.sub.2 F.sub.4 OCF.sub.3, C.sub.3 F.sub.7,

Fluorosiloxane rubbers and process for producing same

The method for producing trialkylphosphine oxides having the general formula R.sub.3 PO, where R is an alkyl having from 1 to 16 carbon atoms, consists in that red phosphorus reacts with an alkyl iodide in the presence of a catalyst -- iodine or hexaalkyliodophosphoranephosphonium pentaiodide -- while gradually adding alkyl iodide to the reaction mixture, and maintaining the reaction temperature at 180.degree. - 230.degree. C., with subsequent isolation of the end product. The proposed method simplifies the process for preparing trialkylphosphine oxides, increases the yield of the end product to 80- 90 per cent by weight, rules out side reactions of dehydrohalogenation of alkyl iodides, and also shortens the process to 8- 10 hours.

Method for producing trialkylphosphine oxides

The invention relates to [perfluoroalkyl(alkoxy)phenyl]methyldichlorosilanes characterized by the general formula ##STR1## where: R.sub.F = OCF.sub.3 OC.sub.2 F.sub.5, OC.sub.2 F.sub.4 OCF.sub.3, C.sub.2 F.sub.4 OCF.sub.3, C.sub.3 F.sub.7 and also to a method of preparing them. The method according to the invention consists in that fluorobromo[alkyl(alkoxy)]benzenes having the general formula ##STR2## where: R.sub.F = OCF.sub.3 OC.sub.2 F.sub.5, OC.sub.2 F.sub.4 OCF.sub.3, C.sub.2 F.sub.4 OCF.sub.3, C.sub.3 F.sub.7 are treated with magnesium taken in a 5 - 20 per cent excess with respect to the stoichiometric quantity in a solution of absolute diethyl ether or absolute tetrahydrofurane at a temperature of 8.degree. - 60.degree. C. The resulting fluorine-containing magnesiumbromo[alkyl(alkoxy)]benzenes are treated with three-functional silanes -- methyltrichlorosilane -- taken in a 100 - 500 per cent excess with respect to the stoichiometric quantity, or with methylchlorodiethoxysilane, taken in the stoichiometric quantity or in a 50 per cent excess with respect to the stoichiometric quantity, at a temperature of 18.degree. - 60.degree. C. In the case of methylchlorodiethoxysilane, the resultant product is fluorine-containing [alkyl(alkoxy)phenyl]methyldiethoxysilanes which are treated with acetyl chloride taken in a 25 - 50 per cent excess with respect to the stoichiometric quantity, at a temperature of 40.degree. - 70.degree. C, in the presence of ferric chloride as a catalyst. The proposed [perfluoroalkyl(alkoxy)phenyl]methyldichlorosilanes can be used for preparing organofluosilicon lubricants, greases, sealing counds, rubber mixtures having high resistance to heat, frost, petrol and oils, that can be used in various fields of technology. The described method can be used to obtain the proposed end products in yields as high as 96 per cent of theory.

[Perfluoroalkyl(alkoxy)phenyl]methyldichlorosilanes and method of

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Kyiv, Ukraine

Vladlen Vasilievich Malovik