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Key Documents

D178454

Sigma-Aldrich

Dimethyl phosphite

98%

Synonyme(s) :

Dimethoxyphosphine oxide, Dimethyl hydrogen phosphite, Dimethyl hydrogen phosphonate, Dimethyl phosphonate, Hydrogen dimethyl phosphite

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About This Item

Formule linéaire :
(CH3O)2P(O)H
Numéro CAS:
Poids moléculaire :
110.05
Numéro Beilstein :
1697490
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352100
ID de substance PubChem :
Nomenclature NACRES :
NA.22

Niveau de qualité

Pureté

98%

Forme

liquid

Impuretés

≤0.5% trimethyl phosphate
≤1% methyl alcohol

Indice de réfraction

n20/D 1.402 (lit.)

Point d'ébullition

170-171 °C (lit.)

Densité

1.2 g/mL at 25 °C (lit.)

Chaîne SMILES 

[H]P(=O)(OC)OC

InChI

1S/C2H7O3P/c1-4-6(3)5-2/h6H,1-2H3

Clé InChI

HZCDANOFLILNSA-UHFFFAOYSA-N

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Application

Dimethyl phosphite is used in the synthesis of α-aminophosphonates, which are medicinally important phosphorus analogs of amino acids, by treating with an amine and an aldehyde or a ketone. It can also be employed in asymmetric hydrophosphonylation of aldehydes to synthesize optically active α-hydroxy phosphonates.
Dimethyl phosphite may be used as an effective alternative to organic tin hydrides as radical reducing agents for organic halides, thionoesters, and isocyanides to form the corresponding hydrocarbons. Radical translocation/cyclization reactions of terminal alkynes to form cyclic phosphonates can also be effectively carried using dimethyl phosphite as a reagent under tin-free condition.

Pictogrammes

Health hazardExclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Aquatic Chronic 3 - Carc. 2 - Muta. 2 - Skin Sens. 1

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

158.0 °F - closed cup

Point d'éclair (°C)

70 °C - closed cup

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Microwave-assisted solvent-free and catalyst-free Kabachnik?Fields reactions for α-amino phosphonates.
Mu X J, et al.
Tetrahedron Letters, 47(7), 1125-1127 (2006)
Zirconium (IV) compounds as efficient catalysts for synthesis of α-aminophosphonates.
Bhagat S and Chakraborti A K
The Journal of Organic Chemistry, 73(15), 6029-6032 (2008)
Ming Xie et al.
Journal of hazardous materials, 181(1-3), 975-980 (2010-06-18)
Nanofiltration (NF) was investigated for the removal of glyphosate in the neutralization liquor produced by the glycine-dimethylphosphit process. The Desal-5 DK membrane was chosen as the most suitable membrane for the NF process when compared to the DL and NTR7450
A J Gutierrez et al.
Nucleosides, nucleotides & nucleic acids, 20(4-7), 1299-1302 (2001-09-21)
Chlorotrimethylsilane completely dealkylates phosphonate esters at elevated temperature in a sealed reaction vessel. These conditions are tolerated by a variety of functional groups and lead to high conversions of dimethyl, diethyl and diisopropyl phosphonates to their corresponding phosphonic acids.
Yeonju Kim et al.
Nanotechnology, 21(49), 495501-495501 (2010-11-17)
Single-walled carbon nanotube (SWNT) networks were used to detect hazardous dimethyl-methyl-phosphonate (DMMP) gas in real time, employing two different metals as electrodes. Random networks of SWNTs were simply obtained by drop-casting a SWNT-containing solution onto a surface-oxidized Si substrate. Although

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