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(FORMYLMETHYLENE)TRIPHENYLPHOSPHORANE

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(FORMYLMETHYLENE)TRIPHENYLPHOSPHORANE Basic information

Product Name:
(FORMYLMETHYLENE)TRIPHENYLPHOSPHORANE
Synonyms:
  • (Formylmethylene)triphenylphosphorane, 97%, may cont. up to ca 3% water
  • FORMYLMETHYLENETRIPHENYLPHOSPORANE
  • Formylmethylenetriphenylphosphorane, 98 %
  • 2-(Triphenylphosphoranylidene)acetaldehyde
  • 2-Oxoethylidenetriphenylphosphorane
  • Triphenyl(2-oxoethylidene)phosphorane
  • (Triphenylphosphoranylidene)acetaldehyde,97%
  • (Triphenylphosphoranylidene)acetaldehydeDISC 10/19/00
CAS:
2136-75-6
MF:
C20H17OP
MW:
304.32
EINECS:
218-375-6
Product Categories:
  • Wittig Reagents
  • Synthetic Organic Chemistry
  • Wittig & Horner-Emmons Reaction
  • Wittig Reaction
Mol File:
2136-75-6.mol
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(FORMYLMETHYLENE)TRIPHENYLPHOSPHORANE Chemical Properties

Melting point:
185-188 °C(lit.)
Boiling point:
472.6±28.0 °C(Predicted)
Density 
1.16±0.1 g/cm3(Predicted)
storage temp. 
Inert atmosphere,Store in freezer, under -20°C
solubility 
Soluble in Chloroform, Methanol.
form 
Fine Crystalline Powder
color 
Pink to brown
Sensitive 
Air Sensitive
BRN 
523797
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey
CQCAYWAIRTVXIY-UHFFFAOYSA-N
CAS DataBase Reference
2136-75-6(CAS DataBase Reference)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
Hazard Note 
Irritant/Keep Cold/Air Sensitive
HS Code 
29319090

MSDS

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(FORMYLMETHYLENE)TRIPHENYLPHOSPHORANE Usage And Synthesis

Chemical Properties

pink to brown crystalline powder

Uses

(Formylmethylene)triphenylphosphorane is used as Wittig reagent. It is also used as Pharmaceutical Intermediates. It is employed as raw material in organic Synthesis, Agrochemicals.

Uses

Wittig reagent for the conversion of aldehydes and ketones to two-carbon homologated, α,β-unsaturated carbonyl compounds.

Purification Methods

Recrystallise it from Me2CO, or dissolve it in *C6H6, wash with N NaOH, dry (MgSO4), evaporate, and crystallise the residue from Me2CO. It can be prepared from its precursor, formylmethyltriphenylphosphonium chloride (which crystallises from CHCl3/EtOAc), by treatment with Et3N and extraction with *C6H6. [Tripett & Walker J Chem Soc 1266 1961.]

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