Chlorocarbonylsulfenyl chloride

Chemical compound From Wikipedia, the free encyclopedia

Chlorocarbonylsulfenyl chloride is the chemical compound with the formula Cl−C(=O)−S−Cl. It is a colorless, distillable liquid that is related to phosgene. It features two reactive functional groups, an acyl chloride and a sulfenyl chloride. According to X-ray crystallography, the molecule is planar.[1]

Quick facts Identifiers, Properties ...
Chlorocarbonylsulfenyl chloride
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 220-415-2
  • InChI=1S/CCl2OS/c2-1(4)5-3
    Key: MNOALXGAYUJNKX-UHFFFAOYSA-N
  • C(=O)(SCl)Cl
Properties
Cl−C(=O)−S−Cl
Molar mass 130.97 g·mol−1
Appearance colorless liquid
Density 1.552 g/cm3
Boiling point 98 Â°C (208 Â°F; 371 K)
Hazards
GHS labelling:
GHS05: Corrosive
Danger
H314
P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 Â°C [77 Â°F], 100 kPa).
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Preparation and reactions

Chlorocarbonylsulfenyl chloride is prepared by hydrolysis of trichloromethane sulfenyl chloride in sulfuric acid as solvent:[2]

Cl3C−S−Cl + H2O → Cl−S−C(=O)−Cl + 2 HCl

The compound, being bifunctional, has been used for the preparation of several heterocycles including oxathiazol-2-ones, oxathialones, and oxathiazoles.[3]

Treatment with formamides gives dithiazolidinediones (also known as dithiasuccinoyl, or DTS).[4]

Relevant to amino acid chemistry, ethylthionocarbamates react with chlorocarbonylsulfenyl chloride to give DTS derivatives:[5][6]

Cl−S−C(=O)−Cl + CH3CH2−O−C(=S)−NH−R → S2(CO)2NR + HCl + CH3CH2Cl

References

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