METHOD FOR PREPARING SULFONYL CHLORIDES Russian patent published in 2006 - IPC C07C303/16 C07C309/80 

Abstract RU 2289574 C1

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for synthesis of sulfonyl chlorides. Method involves oxidation of thiol of the formula: R-SH wherein R means (C1-C20)-alkyl, benzyl, methylphenyl or disulfide of the formula: R-SS-R wherein R means (C1-C20)-alkyl with chlorine dioxide in organic solvent medium in the mole ratio thiol or disulfide to chlorine dioxide = 1:(2-4), respectively, at temperature 10-30°C. Also, invention describes preferable conditions for carrying out the process. Using chlorine dioxide provides enhancing the effectiveness of method. Proposed compounds can be used in manufacturing detergents, ion-exchange resins, elastomers, medicinal agents, dyes, herbicides, as an intermediate products in synthesis of sulfoacid esters, and as mild alkylating agents used in organic synthesis.

EFFECT: improved method of synthesis.

7 cl, 11 ex

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RU 2 289 574 C1

Authors

Lezina Ol'Ga Mikhajlovna

Kuchin Aleksandr Vasil'Evich

Rubtsova Svetlana Al'Bertovna

Dates

2006-12-20Published

2005-04-18Filed