PotassiumO‐Ethyl Xanthate

[140-89-6] C3H5KOS2 (MW 160.30) InChI = 1S/C3H6OS2.K/c1-2-4-3(5)6;/h2H2,1H3,(H,5,6);/q;+1/p-1 InChIKey = JCBJVAJGLKENNC-UHFFFAOYSA-M (preparation of thiols, sulfides, and disulfides; heterocycle formation; reaction with alkyl halides leads to the formation of alkyl xanthates which are versatile radical precursors; glycosidation; esterification) Alternate Name: potassium xanthate, potassium xanthogenate, potassium O-xanthogenate, carbonodithioic acid O-ethyl ester potassium salt, O-ethyl S-potassium dithiocarbonate. Physical Data: mp 222 °C1; density 1.558.21.5 Solubility: very soluble in cold water; decomposes in hot water; soluble in ethanol; insoluble in ether. Form Supplied in: pale yellow solid. Preparative Methods: commercially available. Potassium ethyl xanthate and its congeners can be prepared by the reaction of the corresponding potassium alkoxide with carbon disulfide.2,3 Methods of purification of the commercial compound,4 as well as for the preparation of extremely pure xanthate derivatives have been reported.5 Handling, Storage, and Precaution: reasonably stable when stored in a dark place, protected from air and moisture.