Cas no 866-23-9 (Diethyl (trichloromethyl)phosphonate)

Diethyl (trichloromethyl)phosphonate is an organophosphorus compound characterized by its trichloromethyl and phosphonate functional groups. This reagent is primarily utilized in organic synthesis as a versatile intermediate, particularly in the preparation of phosphorus-containing compounds and as a precursor for further chemical modifications. Its reactivity stems from the electrophilic trichloromethyl group, which facilitates nucleophilic substitution reactions. The compound is valued for its stability under standard handling conditions and its efficiency in introducing phosphorus moieties into target molecules. It finds applications in the synthesis of agrochemicals, pharmaceuticals, and specialty chemicals. Proper handling and storage are recommended due to its potential reactivity with moisture and strong bases.
Diethyl (trichloromethyl)phosphonate structure
866-23-9 structure
Product Name:Diethyl (trichloromethyl)phosphonate
CAS No:866-23-9
MF:C5H10Cl3O3P
MW:255.463860034943
MDL:MFCD00013666
CID:83146
PubChem ID:253662041
Update Time:2025-11-01

Diethyl (trichloromethyl)phosphonate Chemical and Physical Properties

Names and Identifiers

    • diethyl (trichloromethyl)phosphonate
    • Diethyl Trichloromethylphosphonate
    • 1-[ethoxy(trichloromethyl)phosphoryl]oxyethane
    • diethyl 1,1,1-trichloromethylphosphonate
    • diethyl trichloromethanephosphonate
    • Methanephosphonic acid,trichloro-,diethyl ester
    • Phosphonic acid,trichloromethyl-,diethyl ester
    • Ro 3-0658
    • trichloromethanephosphonic acid diethyl ester
    • (Trichloromethyl)phosphonic Acid Diethyl Ester
    • Diethyltrichloromethylphosphonate
    • Phosphonic acid, trichloromethyl-, diethyl ester
    • Phosphonic acid, (trichloromethyl)-, diethyl ester
    • RVAQSYWDOSHWGP-UHFFFAOYSA-N
    • Methanephosphonic acid, trichloro-, diethyl ester
    • WLN: GXGGPO&O2&O2
    • Diethyl P-(trichloromethyl)phosphonate (ACI)
    • Phosphonic acid, (trichloromethyl)-, diethyl ester (6CI, 7CI, 8CI, 9CI)
    • NSC 46567
    • NSC-46567
    • D4607
    • EN300-7867510
    • D90306
    • DB-056945
    • AS-64095
    • SCHEMBL3131911
    • NSC46567
    • CS-0151420
    • 4-03-00-00262 (Beilstein Handbook Reference)
    • BRN 1210640
    • AI3-18556
    • SY048142
    • AKOS015848630
    • MFCD00013666
    • trichloromethyl-phosphonic acid diethyl ester
    • Diethyl (trichloromethyl)phosphonate, 97%
    • Diethyl (trichloromethyl)phosphonate, purum, >=97.0% (GC)
    • 866-23-9
    • DTXSID50235688
    • Diethyl (trichloromethyl)phosphonate
    • MDL: MFCD00013666
    • Inchi: 1S/C5H10Cl3O3P/c1-3-10-12(9,11-4-2)5(6,7)8/h3-4H2,1-2H3
    • InChI Key: RVAQSYWDOSHWGP-UHFFFAOYSA-N
    • SMILES: O=P(C(Cl)(Cl)Cl)(OCC)OCC
    • BRN: 1210640

Computed Properties

  • Exact Mass: 253.94300
  • Monoisotopic Mass: 253.943
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 3
  • Heavy Atom Count: 12
  • Rotatable Bond Count: 4
  • Complexity: 169
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Topological Polar Surface Area: 35.5
  • Surface Charge: 0
  • Tautomer Count: nothing
  • XLogP3: 2.2

Experimental Properties

  • Color/Form: Not determined
  • Density: 1.362?g/mL?at 25?°C(lit.)
  • Boiling Point: 135°C/20mmHg(lit.)
  • Flash Point: Degrees Fahrenheit:235.4°F
    Degrees Celsius:113°C
  • Refractive Index: n20/D 1.463(lit.)
  • PSA: 45.34000
  • LogP: 3.58020
  • Solubility: Not determined

Diethyl (trichloromethyl)phosphonate Security Information

  • Symbol: GHS07
  • Prompt:warning
  • Signal Word:Warning
  • Hazard Statement: H315-H319
  • Warning Statement: P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
  • Hazardous Material transportation number:UN3278
  • WGK Germany:3
  • Hazard Category Code: 36/37/38
  • Safety Instruction: S26; S36
  • FLUKA BRAND F CODES:9-21
  • RTECS:TA0988000
  • Hazardous Material Identification: Xi
  • HazardClass:6.1
  • PackingGroup:III
  • Storage Condition:0-10°C
  • Safety Term:6.1
  • Packing Group:III
  • Risk Phrases:R36/37/38

Diethyl (trichloromethyl)phosphonate Customs Data

  • HS CODE:2931900090
  • Customs Data:

    China Customs Code:

    2931900090

    Overview:

    2931900090. Other organic-Inorganic compound. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:AB(Customs clearance form for Inbound Goods,Customs clearance form for outbound goods). MFN tariff:6.5%. general tariff:30.0%

    Summary:

    2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Diethyl (trichloromethyl)phosphonate Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
XI GE MA AO DE LI QI ( SHANG HAI ) MAO YI Co., Ltd.
374520-5G
Diethyl (trichloromethyl)phosphonate
866-23-9 97%
5G
552.08 2021-05-17
SHANG HAI MAI KE LIN SHENG HUA Technology Co., Ltd.
D865393-5g
Diethyl (Trichloromethyl)phosphonate
866-23-9 ≥96%
5g
¥430.20 2022-01-10
abcr
AB201799-2 g
Diethyl trichloromethylphosphonate, 96%; .
866-23-9 96%
2 g
€73.00 2023-07-20
abcr
AB201799-10 g
Diethyl trichloromethylphosphonate, 96%; .
866-23-9 96%
10 g
€146.20 2023-07-20
TRC
D444815-500mg
Diethyl (Trichloromethyl)phosphonate
866-23-9
500mg
$69.00 2023-05-18
TRC
D444815-1g
Diethyl (Trichloromethyl)phosphonate
866-23-9
1g
$ 80.00 2022-06-05
TRC
D444815-2.5g
Diethyl (Trichloromethyl)phosphonate
866-23-9
2.5g
$ 145.00 2022-06-05
TI XI AI ( SHANG HAI ) HUA CHENG GONG YE FA ZHAN Co., Ltd.
D4607-5G
Diethyl (Trichloromethyl)phosphonate
866-23-9 >96.0%(GC)
5g
¥225.00 2024-04-15
SHANG HAI XIAN DING Biotechnology Co., Ltd.
LK385-1g
Diethyl (trichloromethyl)phosphonate
866-23-9 96.0%(GC)
1g
¥271.0 2022-05-30
SHANG HAI MAI KE LIN SHENG HUA Technology Co., Ltd.
D865393-1g
Diethyl (Trichloromethyl)phosphonate
866-23-9 ≥96%
1g
¥177.30 2022-01-10

Diethyl (trichloromethyl)phosphonate Production Method

Production Method 1

Reaction Conditions
Reference
A high yield route to ethyl esters of carboxylic acids
Downie, Ian M.; et al, Tetrahedron, 1982, 38(10),

Production Method 2

Reaction Conditions
Reference
Leaving group in the Arbuzov reaction of diethyl 1-adamantyl phosphite
Yurchenko, R. I.; et al, Zhurnal Obshchei Khimii, 1984, 54(3),

Production Method 3

Reaction Conditions
Reference
Reaction of the two-component system trialkyl phosphite/carbon tetrachloride with nucleophiles containing hydrogen. 2. Reaction with ammonia and amines
Steinbach, J.; et al, Zeitschrift fuer Anorganische und Allgemeine Chemie, 1985, 523, 180-6

Production Method 4

Reaction Conditions
Reference
Isomerization of alkyl phosphites. VI. Reactions with chlorides of singular structure
Kosolapoff, Gennady M., Journal of the American Chemical Society, 1947, 69, 1002-3

Production Method 5

Reaction Conditions
1.1 Solvents: Carbon tetrachloride ;  24 h, reflux
Reference
Synthetic and mechanistic aspects of halo-F-methylphosphonates
Flynn, Richard M.; et al, Journal of Fluorine Chemistry, 2011, 132(10), 815-828

Production Method 6

Reaction Conditions
Reference
Reaction of the two-component system trialkyl phosphite/carbon tetrachloride with nucleophiles containing hydrogen. 2. Reaction with ammonia and amines
Steinbach, J.; et al, Zeitschrift fuer Anorganische und Allgemeine Chemie, 1985, 523, 180-6

Production Method 7

Reaction Conditions
Reference
Reactivity of triethyl phosphite with tetrachloromethane: electron transfer versus ionic substitution on positive halogen
Bakkas, Salem; et al, Tetrahedron, 1987, 43(3), 501-12

Production Method 8

Reaction Conditions
1.1 Reagents: Oxygen
Reference
Reactivity of triethyl phosphite with tetrachloromethane: electron transfer versus ionic substitution on positive halogen
Bakkas, Salem; et al, Tetrahedron, 1987, 43(3), 501-12

Production Method 9

Reaction Conditions
Reference
Reaction of the two-component system trialkyl phosphite/carbon tetrachloride with nucleophiles containing hydrogen. 2. Reaction with ammonia and amines
Steinbach, J.; et al, Zeitschrift fuer Anorganische und Allgemeine Chemie, 1985, 523, 180-6

Diethyl (trichloromethyl)phosphonate Raw materials

Diethyl (trichloromethyl)phosphonate Preparation Products

Diethyl (trichloromethyl)phosphonate Suppliers

Amadis Chemical Company Limited
Gold Member
Audited Supplier Audited Supplier
(CAS:866-23-9)Diethyl (trichloromethyl)phosphonate
Order Number:A1207281
Stock Status:in Stock
Quantity:100g
Purity:99%
Pricing Information Last Updated:Friday, 30 August 2024 03:46
Price ($):232.0

Additional information on Diethyl (trichloromethyl)phosphonate

Comprehensive Overview of Diethyl (trichloromethyl)phosphonate (CAS No. 866-23-9)

Diethyl (trichloromethyl)phosphonate, identified by its CAS number 866-23-9, is a specialized organophosphorus compound with significant applications in synthetic chemistry and material science. This compound, often referred to by its systematic name, features a trichloromethyl group bonded to a phosphonate ester, making it a versatile intermediate in organic synthesis. Its unique molecular structure, combining phosphorus and chlorine functionalities, enables its use in various high-value chemical transformations, particularly in the synthesis of pharmaceuticals, agrochemicals, and advanced materials.

In recent years, the demand for Diethyl (trichloromethyl)phosphonate has grown due to its role in green chemistry initiatives. Researchers are increasingly exploring its potential as a sustainable reagent for catalytic processes, aligning with global trends toward environmentally friendly synthesis methods. The compound's ability to act as a precursor for phosphorus-containing ligands has also garnered attention in the development of novel catalysts, a topic frequently searched in academic and industrial databases.

One of the most discussed applications of CAS No. 866-23-9 is its utility in the Horner-Wadsworth-Emmons (HWE) reaction, a cornerstone in olefin synthesis. This reaction is pivotal for constructing carbon-carbon double bonds in complex molecules, a process critical for producing fine chemicals and active pharmaceutical ingredients (APIs). Users often search for "HWE reaction phosphonate reagents" or "trichloromethylphosphonate applications," highlighting the compound's relevance in modern synthetic methodologies.

From a safety and handling perspective, Diethyl (trichloromethyl)phosphonate requires careful storage under inert conditions to prevent hydrolysis or degradation. While not classified as hazardous under standard regulations, its reactivity with nucleophiles necessitates proper lab protocols. This aspect is frequently queried in forums and technical guides, with keywords like "stable phosphonate storage" or "handling trichloromethyl compounds" trending among chemists.

The compound's spectroscopic properties, such as 31P NMR shifts and IR absorption bands, are well-documented, aiding in its identification and purity assessment. Analytical chemists often search for "phosphonate NMR characterization" or "CAS 866-23-9 spectral data," underscoring the need for reliable reference materials. These data points are crucial for quality control in industrial and academic settings.

Emerging research has also explored the use of Diethyl (trichloromethyl)phosphonate in polymer chemistry, where it serves as a flame-retardant additive or cross-linking agent. With increasing interest in fire-safe materials, queries like "phosphonate-based flame retardants" have surged, reflecting the compound's expanding role beyond traditional organic synthesis.

In summary, Diethyl (trichloromethyl)phosphonate (866-23-9) remains a cornerstone in synthetic chemistry due to its multifaceted reactivity and alignment with sustainable practices. Its applications span from pharmaceutical intermediates to advanced materials, driven by ongoing innovations and user inquiries into its mechanistic pathways and industrial scalability. As research progresses, this compound is poised to address future challenges in chemical synthesis and material design.

Recommended suppliers
Amadis Chemical Company Limited
(CAS:866-23-9)Diethyl (trichloromethyl)phosphonate
A1207281
Purity:99%
Quantity:100g
Price ($):232.0
Email