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A15756 Sodium chlorodifluoroacetate, 97%

CAS Number
Chlorodifluoroacetic acid sodium salt

Stock No. Size Price ($) Quantity Availability
A15756-14 25g 68.00
A15756-22 100g 196.00
A15756-36 500g 861.00
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Sodium chlorodifluoroacetate, 97%


Chemical Properties

Formula Weight
Melting point
ca 195° dec.
Storage & Sensitivity
Ambient temperatures.
Soluble in dimethoxyethane, diglyme (0.60 g mL-1), triglyme, dimethyl formamide.


It is used as pharmaceutical intermediate. Reactions of aldehydes with triphenylphosphine and sodium chlorodifluoroacetate yield 1,1-difluoro olefins. It is a general reaction and a one step synthesis.


Store at room temperature. Keep away from oxidizing agents.

Literature References

Samuel A. Fuqua.; Warren G. Duncan.; Robert M. Silverstein.Synthesis of 1,1-Difluoro Olefins. II. Reactions of Ketones with Tributylphosphine and Sodium Chlorodifluoroacetate. J. Org. Chem. 1965, 30 (8),2543-2545 .

Samuel A. Fuqua.; Warren G. Duncan.; Robert M. Silverstein.A One-Step Synthesis of 1,1-Difluoro Olefins from Aldehydes. J. Org. Chem. 1965, 30 (4),1027-1029 .

Thermolysis in refluxing diglyme generates difluorocarbene: Proc. Chem. Soc., 81 (1960); Tetrahedron, 25, 1219 (1969); Tetrahedron Lett., 1319 (1973). In triglyme at 165o, gave better results in comparison with most other difluorocarbene precursors in cyclopropanation of an enol ether: Tetrahedron, 46, 5213 (1990).

In the presence of triphenyl- or tributylphosphine, the carbene is intercepted to give the difluoromethylenephosphorane, which can be used to convert aldehydes and ketones to 1,1-difluoroalkenes: Tetrahedron Lett., 1461 (1964); J. Org. Chem., 30, 1027, 2543 (1965); Org. Synth. Coll., 5, 390, 949 (1973):

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Harmonized Tariff Code


  • A10969

    Acetic hydrazide, 96%
  • A15547

    Chlorotriethylsilane, 98+%
  • B22637

    Valeryl chloride, 98%
  • H26857

    Trimethylsilyl 2,2-difluoro-2-(fluorosulfonyl)acetate, 94%
  • L19869

    Methyl 2-aminopyridine-4-carboxylate, 97%

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