Triethylphosphonoacetate

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Triethylphosphonoacetate
Identifiers
CAS number	[867-13-0]
Properties
Molecular formula	C8H17O5P
Molar mass	224.19306 g/mol
Boiling point	142-145 °C at 9 mm Hg
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Triethylphosphonoacetate is a reagent for organic synthesis used in the Horner-Wadsworth-Emmons reaction or the Horner-Emmons modification.

Triethylphosphonoacetate can be added dropwise to sodium methoxide solution to prepare a phosphonate ylide. It has an acidic proton in the that can easily be abstracted by a weak base.

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