Chemistry:Chlorosoman

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Chlorosoman
Chlorosoman.png
Chlorosoman-3D.png
Names
Preferred IUPAC name
3,3-Dimethylbutan-2-yl methylphosphonochloridate
Other names
Pinacolyl methylphosphonochloridate
Identifiers
3D model (JSmol)
ChemSpider
Properties
C7H16ClO2P
Molar mass 198.63 g·mol−1
1,030 mg/L[1]
Vapor pressure 0.207 mm Hg[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Chlorosoman is a chlorine analog of soman. It is a highly toxic organophosphorus compound and used as the precursor substance for soman nerve agent.[2] Its physical properties are estimated. Soman is insoluble in water, with a boiling point of 223 degrees Celsius and a melting point of -27 degrees Celsius. Chlorosoman is at least 2.5x less toxic than its analogue.[3]

The ClG series of compounds is used more as a precursor to highly toxic compounds. For example, soman is a precursor to EA-2613 and EA-3209.

Synthesis

ClGD follows the same synthetic route as soman, with fluoridation being omitted. Chlorosoman is prepared by the Finkelstein reaction between a solution of sodium chloride in DMF and soman.[4]

References

  1. 1.0 1.1 National Center for Biotechnology Information. "Chlorosoman - PubChem Compound Database". https://pubchem.ncbi.nlm.nih.gov/compound/145983. 
  2. Quagliano, Javier; Witkiewicz, Zygfryd; Sliwka, Ewa; Neffe, Slawomir (2018). "Precursors of Nerve Chemical Warfare Agents with Industrial Relevance: Characteristics and Significance for Chemical Security". ChemistrySelect 3 (10): 2703–2715. doi:10.1002/slct.201702763. 
  3. Ledgard, J. A Laboratory History of Chemical Warfare Agents.
  4. cit-OPDC. The preparatory manual to chemical warfare. Vol 1:ClG-agents.