Benzyl mercaptan → 2,4-Bis(benzylsulfanyl)-1,3,2lambda~5~,4lambda~5~-dithiadiphosphetane-2,4-dithione

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Reaction Conditions

Reaction Steps

The method is derived from the reference H. Davy, Sulfur Letters, vol. 3(2) 39, (1985). P4S10 (8.88 g, 0.02 mol) is mixed with 30 ml of dichlorobenzene until this solvent refluxes (160° C.). Benzylthiol (16.5 ml; 0.14 mol) is slowly added to the solution over 40 minutes, while increasing the temperature up to 190° C. The solution becomes clear; the reaction temperature is then reduced to 80° C. The stirring is stopped in order to allow the residual P4S10 to be separated by settling. The solution is filtered in the hot state. The product crystallizes slowly after filtration. The yield is 50%.

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