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CAS RN: 111160-56-6 | Product Number: D2038

Diphenyl (2,3-Dihydro-2-thioxo-3-benzoxazolyl)phosphonate


Purity: >98.0%(T)
Synonyms:
  • (2,3-Dihydro-2-thioxo-3-benzoxazolyl)phosphonic Acid Diphenyl Ester
  • DBOP
Documents:
5G
$90.00
2   1   11  
25G
$359.00
6   2   33  

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Product Number D2038
Purity / Analysis Method >98.0%(T)
Molecular Formula / Molecular Weight C__1__9H__1__4NO__4PS = 383.36 
Physical State (20 deg.C) Solid
Storage Temperature Room Temperature (Recommended in a cool and dark place, <15°C)
Store Under Inert Gas Store under inert gas
Condition to Avoid Air Sensitive
CAS RN 111160-56-6
Reaxys Registry Number 5451863
PubChem Substance ID 87568490
MDL Number

MFCD00142793

Specifications
Appearance White to Almost white powder to crystal
Purity(Neutralization titration) min. 98.0 %
Melting point 81.0 to 86.0 °C
Properties (reference)
Melting Point 84 °C
Solubility (slightly sol. in) Methanol
GHS
Related Laws:
Transport Information:
HS Number 2934.99.4400
Application
A Condensing Agent

Experimental procedure2): Diphenyl (2,3-dihydro-2-thioxo-3-benzoxazolyl)phosphonate (3.38 g, 8.8 mmol) is added to a solution of 1 (2.56 g, 8 mmol) and triethylamine (1.12 mL, 8 mmol) in 10 mL of NMP. After stirring for 30 min at room temperature, 3-iodoaniline (1.75 g, 8 mmol) is added. The solution is stirred for 2 h and poured into 1% aqueous sodium hydrogen carbonate. Then EtOH is added to the mixture. The precipitate is filtered off washed with EtOH/water (200 mL/300 mL). The product is dissolved in boiling EtOH (600 mL) and cooled to recrystallize. The product is further purified by recrystallization to afford 2 as a white powder (3.14 g, 6.02 mmol, 75%).

References


PubMed Literature


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