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Bis(ethoxythiocarbonyl)sulfide
Book chapter

Bis(ethoxythiocarbonyl)sulfide

Gregory K Friestad and Tao Jiang
Encyclopedia of Reagents for Organic Synthesis
John Wiley & Sons, Ltd
1995
DOI: 10.1002/047084289X.rn00637

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Abstract

[ 2905‐52‐4 ]  C 6 H 10 O 2 S 3  (MW 210.34) InChI =  1S/C6H10O2S3/c1‐3‐7‐5(9)11‐6(10)8‐4‐2/h3‐4H2,1‐2H3 InChIKey =  ALGQDBJUFSYDLA‐UHFFFAOYSA‐N (thioacylating agent) Alternative Names : ethyl xanthic anhydride; O , O ‐diethyl trithiodicarbonate. Physical Data:  mp 55 °C; 52–53 °C. Solubility:  soluble in iso ‐octane, chloroform, tetrahydrofuran. Form Supplied in:  yellow solid, commercially available. Preparative Methods:  from reactions of potassium ethyl xanthate with chloroformates or phosgene, or reaction of ethyl chlorothioformate with Na 2 S. Other preparative methods have also been reported. Purification:  recrystallization from hot (60 °C) ethanol/water (3∶1). Handling, Storage, and Precautions:  completely stable on storage under ambient conditions over a period of years. It is long‐lived under acidic conditions, but decomposes in base with a half‐life of 4.5 h at pH 10. Its preparation and routine reactions should be performed in a well‐ventilated fume hood.

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