In organosulfur chemistry, a Bunte salt is an archaic name for salts with the formula . They are also called S-alkylthiosulfates or S-arylthiosulfates. These compounds are typically derived from alkylation on the pendant sulfur of sodium thiosulfate:
They have been used as intermediates in the synthesis of thiols.Distler, Harry "The Chemistry of Bunte Salts" Angewandte Chemie International Edition in English 1967, vol. 6, pp. 544-53. They are also used to generate unsymmetrical disulfides:
According to X-ray crystallography, they adopt the expected structure with tetrahedral sulfur(VI) atom, a sulfur-sulfur single bond, and three equivalent sulfur-oxygen bonds.
See also Thiosulfonates are organosulfur compounds with the formula and
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