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Sodium chloroacetate

Sodium chloroacetate
Names
Preferred IUPAC name
Sodium chloroacetate
Other names
sodium monochloroacetate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.021.363
UNII
  • InChI=1S/C2H3ClO2.Na/c3-1-2(4)5;/h1H2,(H,4,5);/q;+1/p-1 ☒N
    Key: FDRCDNZGSXJAFP-UHFFFAOYSA-M ☒N
  • InChI=1/C2H3ClO2.Na/c3-1-2(4)5;/h1H2,(H,4,5);/q;+1/p-1
    Key: FDRCDNZGSXJAFP-REWHXWOFAF
  • C(C(=O)[O-])Cl.[Na+]
Properties
C2H2ClNaO2
Molar mass 116.48 g·mol−1
Appearance white solid
Density 1.401 g/cm3 (25 °C)
soluble in water, ethanol, chloroform, ether and benzene
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 irritant to skin
does not ignite
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium chloroacetate is the organic compound with the formula CH2ClCO2Na. A white, water-soluble solid, it is the sodium salt of chloroacetic acid. Many of its uses are similar to those of the parent acid. It is prepared by treating chloroacetic acid with sodium carbonate.[1][2]

Uses

Chloroacetate is a good alkylating agent, serving as a reagent for affixing the -CH2CO2− group to a wide variety of even weak nucleophiles.

In terms of practical, commercial uses, it is used to convert cellulose to carboxymethylcellulose. It is a precursor to many herbicides dimethoate and benazoline (the salt itself is also used as a contact herbicide). It is a precursor to thioglycolic acid by reaction with sodium hydrosulfide. Reaction with cyanide salts gives cyanoacetate NCCH2CO2Na.[3] Cyanoacetate is a precursor to malonic acid.

Sodium chloroacetate is a common laboratory reagent in organic chemistry as illustrated by many entries in the book series Organic Syntheses. With bifunctional nucleophiles, sodium chloroacetate is a precursor to heterocycles.[4][5]

Reaction with sodium nitrite give nitroacetic acid.[6] With sodium ethoxide it gives ethoxyacetate.[7] With ethyl acetoacetate ethyl acetosuccinate is produced.[8]

Hydrolysis gives glycolic acid.[1]

References

  1. ^ a b Koenig, Günter; Lohmar, Elmar; Rupprich, Norbert (2000). "Chloroacetic Acids". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a06_537. ISBN 3527306730.
  2. ^ Nathan Weiner (1938). "Malonic Acid". Organic Syntheses. 18: 50. doi:10.15227/orgsyn.018.0050.
  3. ^ J. K. H. Inglis (1928). "Ethyl Cyanoacetate". Organic Syntheses. 8: 74. doi:10.15227/orgsyn.008.0074.
  4. ^ C. Ernst Redemann, Roland N. Icke, Gordon A. Alles (1947). "Rhodanine". Organic Syntheses. 27: 73. doi:10.15227/orgsyn.027.0073.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  5. ^ C. F. H. Allen, J. A. VanAllan (1947). "Pseudothiohydantoin". Organic Syntheses. 27: 71. doi:10.15227/orgsyn.027.0071.
  6. ^ F. C. Whitmore, Marion G. Whitmore (1923). "Nitromethane". Organic Syntheses. 3: 83. doi:10.15227/orgsyn.003.0083.
  7. ^ Reynold C. Fuson, Bruno H. Wojcik (1933). "Ethoxyacetic Acid and Ethyl Ethoxyacetate". Organic Syntheses. 13: 42. doi:10.15227/orgsyn.013.0042.
  8. ^ Homer Adkins, Neville Isbell, Bruno Wojcik (1934). "Ethyl Acetosuccinate". Organic Syntheses. 14: 38. doi:10.15227/orgsyn.014.0038.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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