20039-33-2 Usage
Uses
Diethoxyphosphinyl Isocyanate is an intermediate for organic synthesis. Diethoxyphosphinyl Isocyanate is toxic, cytogenetic and embryotoxic to different mice strains.
Preparation
A solution of diethyl phosphoramidate (30.6 g, 0.2 mol) in tetrachloromethane (50 mL) was slowly added dropwise with stirring and efficient external cooling to a solution of oxalyl chloride (27.9 g, 0.22 mol) in the same solvent (150 mL). The reaction temperature was kept at -5 to 0 °C. After completion of the addition, the temperature of the mixture was slowly increased to 50 °C and this was maintained for 1 h. The mixture was then cooled to room temperature, filtered, and concentrated in vacuo. The residual liquid product was distilled in vacuo (bp 85–87 °C/10 Torr); yield 22.9 g (64%).
General Description
Diethoxyphosphinyl isocyanate is an isocyanate derivative. It has been investigated for its performance as film forming electrolyte additive in propylene carbonate (PC) and EC/EMC-based electrolytes.
Check Digit Verification of cas no
The CAS Registry Mumber 20039-33-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,3 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20039-33:
(7*2)+(6*0)+(5*0)+(4*3)+(3*9)+(2*3)+(1*3)=62
62 % 10 = 2
So 20039-33-2 is a valid CAS Registry Number.
InChI:InChI=1/C5H10NO4P/c1-3-9-11(8,6-5-7)10-4-2/h3-4H2,1-2H3
20039-33-2Relevant articles and documents
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Antokhina,L.A.,Alimov,P.I.
, (1974)
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On the route to the N-phosphoryl sulfamic acid
Mielniczak,Lopusinski
, p. 785 - 791 (2007/10/03)
Synthesis of the previously unknown N-diethyl phosphorosulfamate 15 was accomplished by direct sulfamation of diethyl phosphoroamidate 4 with sulfur trioxide-DMF complex 14. The acid 15 was isolated in form of benzyl-16 and cyclohexylammonium 17 salts, which were found to be unstable in water solution. The other possible routes to sulfamate 15 were briefly tested.
Organic Phoshorus Compounds. XVI. On the Chemistry of the Isocyanatophosphoric Acid Diethyl Ester
Moll, Rainer,Jentzsch, Renate,Fischer, Gerhard W.
, p. 439 - 443 (2007/10/02)
A one-pot procedure for preparing ureidophosphoric acid dialkyl esters 2 from POCl3, urea, and alcohols via ureidophosphoric acid dichloride 1 was worked out. 2 (R=Et) was used as starting material for isocyanatophosphoric acid diethyl ester (4, R=Et), th
