Ethyl S-n-butyl xanthate

Ethyl S-n-butyl xanthate. Use 32 g. of potassium ethyl xanthate, 37 g. (23 ml.) of n-butyl iodide (Section 111,40) and 50 ml. of absolute ethyl alcohol. Reflux on a water bath for 3 hours. Pour into 150 ml. of water, saturate with salt (in order to facilitate the separation of the upper layer), remove the upper xanthate layer, wash it once with 25 ml. of saturated salt solution, and dry with anhydrous calcium chloride or anhydrous calcium sulphate. Distil from a 50 ml. Claisen flask under reduced pressure. Collect the pale yellow ethyl S-n-butyl xanthate at 90-91°/4 mm. The yield is 34 g. 

Dithiocarbonic acid, O-butyl ester, sodium salt. See Sodium n-butyl xanthate Dithiocarbonic acid, O-s-butyl ester, sodium salt. See Sodium s-butyl xanthate Dithiocarbonic acid, O-ethyl ester. See Ethyl xanthate... 

Ethyl xanthate Potassium isobutyl xanthate Potassium isopropyl xanthate Sodium n-butyl xanthate Sodium s-butyl xanthate flotation agent, froth minerals Calcium cyanide flotation agent, herbicides Palmitamine... 

A and 7B. Relative concentrations of relevant species as a function of time determined via In s/tu H-NMR spectroscopy during the tert-butyl ethyl xanthate (X3)-mediated polymerization of vinyl acetate (A) and of N-vinyl pyrrolidone (B) at 70 °C in QDs, [Monomer]o/[Xanthate]o =... 

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