Diethyl phosphorochloridate

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Diethyl phosphorochloridate
Diethylchlorophosphate.svg
Names
Preferred IUPAC name
Diethyl phosphorochloridate
Other names
Diethylchlorophosphate; Diethoxyphosphorus oxychloride; Diethyl chlorophosphonate; Diethyl phosphorochloride; Diethoxyphosphoryl chloride; O,O-Diethyl chlorophosphate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.011.270 OOjs UI icon edit-ltr-progressive.svg
PubChem CID
UNII
  • InChI=1S/C4H10ClO3P/c1-3-7-9(5,6)8-4-2/h3-4H2,1-2H3
    Key: LGTLXDJOAJDFLR-UHFFFAOYSA-N
  • InChI=1/C4H10ClO3P/c1-3-7-9(5,6)8-4-2/h3-4H2,1-2H3
    Key: LGTLXDJOAJDFLR-UHFFFAOYAA
  • CCOP(=O)(OCC)Cl
Properties
C4H10ClO3P
Molar mass 172.54 g/mol
Appearancecolorless liquid
Density 1.1915 g/cm3
Boiling point 60 °C (140 °F; 333 K) (2 mm Hg)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Diethyl chlorophosphate is an organophosphorus compound with the formula (C2H5O)2P(O)Cl. As a reagent in organic synthesis, it is used to convert alcohols to the corresponding diethylphosphate esters. It is a colorless liquid with a fruity odor. It is a corrosive, and as a cholinesterase inhibitor, highly toxic through dermal absorption. [1] The molecule is tetrahedral.

Contents

Synthesis and reactions

The compound is prepared by the chlorination of diethylphosphite with carbon tetrachloride (Atherton–Todd reaction). [2]

The compound is electrophilic. Controlled hydrolysis gives tetraethyl pyrophosphate. Alcohols react to vie mixed phosphate esters: [3]

(C2H5O)2P(O)Cl + ROH → (C2H5O)2P(O)OR + HCl

The reagent is routinely employed in organic synthesis for phosphorylation of carboxylates, [4] alcohols, [5] and amines. [6]

See also

Related Research Articles

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<span class="mw-page-title-main">Benzoyl chloride</span> Organochlorine compound (C7H5ClO)

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<span class="mw-page-title-main">Phosphorus trichloride</span> Chemical compound

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<span class="mw-page-title-main">Diethyl azodicarboxylate</span> Chemical compound

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<span class="mw-page-title-main">Trimethylsilyl chloride</span> Organosilicon compound with the formula (CH3)3SiCl

Trimethylsilyl chloride, also known as chlorotrimethylsilane is an organosilicon compound, with the formula (CH3)3SiCl, often abbreviated Me3SiCl or TMSCl. It is a colourless volatile liquid that is stable in the absence of water. It is widely used in organic chemistry.

<span class="mw-page-title-main">Phosphite ester</span> Organic compound with the formula P(OR)3

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<span class="mw-page-title-main">Tebbe's reagent</span> Chemical compound

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<span class="mw-page-title-main">Thiophosphoryl chloride</span> Chemical compound

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<span class="mw-page-title-main">Triethyl phosphite</span> Chemical compound

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<span class="mw-page-title-main">Butyryl chloride</span> Chemical compound

Butyryl chloride is an organic compound with the chemical formula CH3CH2CH2C(O)Cl. It is a colorless liquid with a unpleasant odor. Butyryl chloride is soluble in organic solvents, but it reacts readily with water and alcohols. It is usually produced by chlorination of butyric acid.

<span class="mw-page-title-main">Jones oxidation</span> Oxidation of alcohol

The Jones oxidation is an organic reaction for the oxidation of primary and secondary alcohols to carboxylic acids and ketones, respectively. It is named after its discoverer, Sir Ewart Jones. The reaction was an early method for the oxidation of alcohols. Its use has subsided because milder, more selective reagents have been developed, e.g. Collins reagent.

<span class="mw-page-title-main">Tetraethyl pyrophosphate</span> Chemical compound

Tetraethyl pyrophosphate, abbreviated TEPP, is an organophosphate compound with the formula [(C2H5O)2P(O)]2O. It is the tetraethyl derivative of pyrophosphate (P2O74-). It is a colorless oil that solidifies near room temperature. It is used as an insecticide. The compound hydrolyzes rapidly.

<span class="mw-page-title-main">Sulfinyl halide</span> Class of chemical compounds

Sulfinyl halide have the general formula R−S(O)−X, where X is a halogen. They are intermediate in oxidation level between sulfenyl halides, R−S−X, and sulfonyl halides, R−SO2−X. The best known examples are sulfinyl chlorides, thermolabile, moisture-sensitive compounds, which are useful intermediates for preparation of other sufinyl derivatives such as sulfinamides, sulfinates, sulfoxides, and thiosulfinates. Unlike the sulfur atom in sulfonyl halides and sulfenyl halides, the sulfur atom in sulfinyl halides is chiral, as shown for methanesulfinyl chloride.

<span class="mw-page-title-main">Diphenylphosphine oxide</span> Chemical compound

Diphenylphosphine oxide is an organophosphorus compound with the formula (C6H5)2P(O)H. It is a white solid that soluble in polar organic solvents.

<span class="mw-page-title-main">Diethylphosphite</span> Chemical compound

Diethyl phosphite is the organophosphorus compound with the formula (C2H5O)2P(O)H. It is a popular reagent for generating other organophosphorus compounds, exploiting the high reactivity of the P-H bond. Diethyl phosphite is a colorless liquid. The molecule is tetrahedral.

In organic chemistry, vinylation is the process of attaching a vinyl group to a substrate. Many organic compounds contain vinyl groups, so the process has attracted significant interest, especially since the reaction scope includes substituted vinyl groups. The reactions can be classified according to the source of the vinyl group.

In chemistry, a phosphorochloridate is a class of organophosphorus compounds with the formula (RO)2P(O)Cl (R = organic substituent). They are tetrahedral in shape, akin to regular phosphates (OP(OR)3). They are usually colorless and sensitive toward hydrolysis. They are oxidized derivatives of phosphorochloridites, which have the formula (RO)2PCl. A popular example is diethyl phosphorochloridate.

References

  1. "Haz-Map Category Details". hazmap.nlm.nih.gov. Retrieved 2016-07-30.
  2. Steinberg, Geo. M. (1950). "Reactions of Dialkyl Phosphites. Synthesis of Dialkyl Chlorophosphates, Tetraalkyl Pyrophosphates, and Mixed Orthophosphate Esters". Journal of Organic Chemistry. 15 (3): 637–47. doi:10.1021/jo01149a031.
  3. Young, Jonathan R. (2001). "Diethyl phosphorochloridate". E-EROS Encyclopedia of Reagents for Organic Synthesis: 1–3.
  4. Michael A. Insalaco; D. Stanley Tarbell (1970). "tert-Butyl Azidoformate". Org. Synth. 50: 9. doi:10.15227/orgsyn.050.0009.
  5. D. C. Muchmore (1972). "Preparation and Reductive Cleavage of Enol Phosphates: 5-Methylcoprost-3-ene". Org. Synth. 52: 109. doi:10.15227/orgsyn.052.0109.
  6. Nick Nikolaides; Ioanna Schipor; Bruce Ganem (1995). "Conversion of Amines to Phospho Esters: Decyl Diethyl Phosphate". Org. Synth. 72: 246. doi:10.15227/orgsyn.072.0246.