Chemistry:Dixanthogen disulfide
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- thumb|right|Structure of diethyl dixanthogen disulfide.
Dixanthogen disulfides are a class of organosulfur compounds with the formula (ROC(S)S)
2. Usually yellow solids, they are the product of the oxidation of xanthate salts.[1] A common derivative is diethyl dixanthogen disulfide. Diisopropyl dixanthogen disulfide is commercially available. They are structurally related to thiuram disulfides.
Uses and reactions
Diethyl dixanthogen disulfide is a component for froth flotations used, inter alia, for the separation of sulfide minerals like pyrrhotite. Diisopropyl dixanthogen disulfide is a reagent in the synthesis of sulfur heterocycles.[2]
Dialkoxy dixanthogen disulfides undergo desulfurization by cyanide to give bis(alkoxythiocarbonyl)sulfides:[3]
- (ROC(S)S)
2 + CN−
→ (ROC(S))
2S + SCN−
Dixanthogens are also ectoparasiticides.
References
- ↑ Schroll, Alayne L.; Barany, George (1986). "Novel Symmetrical and Mixed Carbamoyl and Aminopolysulfanes by Reactions of (Alkoxydichloromethyl)polysulfanyl Substrates with N-Methylaniline". The Journal of Organic Chemistry 51 (10): 1866–1881. doi:10.1021/jo00360a039.
- ↑ Gareau, Yves; Beauchemin, André (1998). "Free Radical Reaction of Diisopropyl Xanthogen Disulfide with Unsaturated Systems". Heterocycles 48 (10): 2003. doi:10.3987/COM-98-8230.
- ↑ Tobón, Yeny A.; Castellano, Eduardo E.; Piro, Oscar E.; Della Védova, Carlos O.; Romano, Rosana M. (2009). "Spectroscopic and structural studies of bis[isopropoxy(thiocarbonyl)]sulfide, [(CH3)2CHOC(S)]2S". Journal of Molecular Structure 930 (1–3): 43–48. doi:10.1016/j.molstruc.2009.04.033. Bibcode: 2009JMoSt.930...43T.
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