Grundinformationen
- Standard-SMILES
CCOC(=O)CP(=O)(OCC)OCC- InChIKey
GGUBFICZYGKNTD-UHFFFAOYSA-N- Summenformel
- C8H17O5P
- Durchschnittliche Molmasse
- 224,19 g/mol
- Monoisotopische Masse
- 224,08136027
Namen und Bezeichner
- Bevorzugter Name
- Triethyl phosphonoacetate
- IUPAC
- ethyl 2-diethoxyphosphorylacetate
- Lokaler Name
- Triethylphosphonoacetat
- Englischer Name
- Triethyl phosphonoacetate
- Summenformel
- C8H17O5P
- Molmasse
- 224.19
Namen und Synonyme
Weitere Namen anzeigen
Datenbank-Bezeichner
- CAS
867-13-0- PubChem CID
- 13345
- DTXSID
DTXSID4041573- ChEMBL
CHEMBL3185304- UNII
- 022826171T
- EC Number
- 212-757-6
- Nikkaji
- J54.207E
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- 0,5
- Polarare Oberfläche (TPSA)
- 61,8 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 5
- Frei drehbare Bindungen
- 8
- Schwere Atome
- 14
- Formalladung
- 0
- Komplexität
- 206
Experimentelle und physikochemische Eigenschaften
Food Contact Substances
FCS -> FDA Cumulative Estimated Daily Intake (CEDI)
FCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR
Physikochemische Eigenschaften
- Schmelzpunkt
- -24 °C · -24°C
- Siedepunkt
- 142 · 142-145 °C9 mm Hg(lit.)
- Dichte
- 1.13 g/mL · 1.13 g/mL at 25 °C(lit.)
- Dampfdruck
- 0.61 Pa · 0.61Pa at 25℃
- Brechungsindex
- 20 · n20/D 1.431(lit.)
- Flammpunkt
- 165 °C · 165°C
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- Löslichkeit
- Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
- Aggregatzustand
- Liquid
- Wichte
- 1.13 · 1.130
- Farbe
- Clear
- Wasserlöslichkeit
- Slightly miscible with water.
- BRN
- 1343714 · 1343714
- InChI
- 1S/C8H17O5P/c1-4-11-8(9)7-14(10,12-5-2)13-6-3/h4-7H2,1-3H3
- InChIKey
- GGUBFICZYGKNTD-UHFFFAOYSA-N
- SMILES
- CCOC(=O)CP(=O)(OCC)OCC
- LogP
- 1.13 at · 1.13 at 30℃
- CAS Datenbank
- 867 · 867-13-0(CAS DataBase Reference)
- EPA chemische Informationen
- Acetic acid, (diethoxyphosphinyl)-, ethyl ester (867-13-0)
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
Warning
H315 (22.9%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 70 reports by companies from 17 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Gefahrenhinweise
Regulatory Information
Chemical: Acetic acid, (diethoxyphosphinyl)-, ethyl ester
Regulation (EC) No 1935/2004 (amended)
Status: Active Update: 19-08-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/11013
Acetic acid, (diethoxyphosphinyl)-, ethyl ester: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Toxikologische Informationen
Sicherheitsdaten
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 3082 9/PG 3
- hs_code
- 29310095
- RTECS-Nr.
- AG9800000
- risk_code
- 51/53-36/37/38
- hazard_code
- N,Xi,Xn
- hazard_note
- Harmful
- safety_code
- 61-37/39-26-36
- hazard_class
- 9
- packing_group
- III
- Speicherklasse
- 10 - Combustible liquids
- Hazard Classifications
- Eye Irrit. 2
Chemie und Industrie
Verwendung und Herstellung
Anwendungen
BeschreibungTriethyl phosphonoacetate is a reagent for organic synthesis used in the Horner-Wadsworth-Emmons reaction (HWE) or the Horner-Emmons modification. This compound can be added dropwise to sodium methoxide solution to prepare a phosphonate anion. It has an acidic proton that can easily be abstracted by a weak base. When used in an HWE reaction with a carbonyl, the resulting alkene formed is usually the E alkene and is generated with excellent regioselectivity. It can synthesize β-Keto Phosphonates via an acylation reaction of triethyl phosphonoacetate with carboxylic acid chlorides in the presence of magnesium chloride-triethylamine followed by decarbethoxylation. Acylation of triethyl phosphonoacetate using magnesium ethoxide affords acyl phosphonoacetates, which, on treatment with catalytic p-TsOH in water, are converted into 2-aryl-2-oxoalkylphosphonates[1-2].
VerwendenTriethyl phosphonoacetate serves as a reactant used in Horner-Wadsworth-Emmons reactions, Tsuji-Trost type reactions, Intramolecular Heck-type cyclization and isomerizations and Intramolecular aryne-ene reactions. In Horner-Wadsworth-Emmons reaction, it is utilized as a reagent to prepare chiral 2-methylcyclopropanecarboxylic acid from (S)-propylene oxide.
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