METHOD FOR PRODUCTION OF ALPHA-THIOCYANATED DERIVATIVES OF BETA-DICARBONYL COMPOUNDS Russian patent published in 2017 - IPC C07C331/04 C07C331/14 

Abstract RU 2628066 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method for production of α thiocyanated derivatives β- dicarbonyl compounds of general formula , where R = alkyl C1-C6, unsubstituted or substituted benzyl, allyl, CH2)2COOEt, (CH2)2CN; R1 and R2=CH3 or OEt or R+R1=(CH2)4, which can be used as medicinal products (anti-cancer, anti-asthmatic, analgesic, anti-inflammatory, antipyretic) and pesticides. The method includes reacting of α-substituted β-dicarbonyl compounds of general formula , where R, R1 and R2 have the above values, with sodium thiocyanate in the presence of cerium (IV) ammonium nitrate. The process is carried out in an organic solvent at a temperature of 20-25°C and molar ratio α-substituted of β-dicarbonyl compound: sodium thiocyanate: cerium(IV) ammonium nitrate equal to 1:2-4:2-4, respectively.

EFFECT: method allows to increase the yield of target products, to shorten the process time, to abandon highly toxic reagents and additional stages, to expand the range of obtained compounds of general formula I.

18 ex

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RU 2 628 066 C1

Authors

Sharipov Mikhail Yurevich

Glinushkin Aleksej Pavlovich

Krylov Igor Borisovich

Gajdarenko Darya Valerevna

Nikishin Gennadij Ivanovich

Terentev Aleksandr Olegovich

Dates

2017-08-14Published

2016-10-20Filed