Chemistry:Thiosulfonate

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Thiosulfonate esters are organosulfur compounds with the formula R–SO
2
–S–R'
. The parent member S-methyl methanethiosulfonate CH
3
–SO
2
–S–CH
3
is a colorless liquid.

Thiosulfonate esters are usually produced by oxidation of disulfides or the nucleophilic attack of thiolates on organosulfonyl halides.[1] The simplest thiosulfonate, CH
3
SO
2
SCH
3
can however be prepared from dimethyl sulfoxide by treatment with oxalyl chloride.[2]

Thiosulfonate also refers to the thiosulfonate anion R–S
2
O
2
and its salts. Alkali metal organylthiosulfonates are the salts of organylthiosulfonic acids (e.g., sodium methanethiosulfonate CH
3
–S
2
O
2
Na+
). They are prepared by the reaction of organosulfonyl chlorides with sources of sulfide.[1][3]

Oxidation with mCPBA gives disulfones.[1]

See also

  • Bunte salts are related organosulfur compounds containing the anion with the formula R–S–SO
    3
  • Thiosulfinate a structurally analogous compound containing functional group in a lower oxidation state, with the formula R–S(O)–S–R
  • S-methyl methanethiosulfonate CH
    3
    –SO
    2
    –S–CH
    3

References

  1. 1.0 1.1 1.2 Zefirov, Nikolai S.; Zyk, Nikolai V.; Beloglazkina, Elena K.; Kutateladze, Andrei G. (1993). "Thiosulfonates: Synthesis, Reactions and Practical Applications". Sulfur Reports 14: 223–240. doi:10.1080/01961779308055018. 
  2. Xixuan Zhao, Shuai Peng, Hao Wang, Shuai Huang, Baoguo Sun, Hongyu Tian and Sen Liang (2024). "Preparation of S-Methyl Methanethiosulfonate from Dimethyl Sulfoxide Initiated by Oxalyl Chloride". Organic Syntheses 101: 395. doi:10.15227/orgsyn.101.0395. 
  3. R. B. Woodward; I. J. Pachter; Monte L. Scheinbaum (1974). "Trimethylene Dithiotosylate And Ethylene Dithiotosylate". Org. Synth. 54: 33. doi:10.15227/orgsyn.054.0033.