Methyl (triphenylphosphoranylidene)acetate
Synonym(s):(Carbomethoxymethylene)triphenylphosphorane;(Methoxycarbonylmethylene)triphenylphosphorane
- CAS NO.：2605-67-6
- Empirical Formula: C21H19O2P
- Molecular Weight: 334.35
- MDL number: MFCD00008455
- EINECS: 220-018-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-07-27 13:57:03
What is Methyl (triphenylphosphoranylidene)acetate?
The Uses of Methyl (triphenylphosphoranylidene)acetate
- (Methoxycarbonylmethylene)triphenylphosphorane is used in olefination reactions. Wittig reagent for the two-carbon homologation of aldehydes to α,β-unsaturated esters. it undergoes the Wittig reaction with aldehydes to give substituted methyl acrylates.
- used in an efficient synthesis of pyrazoles via reaction with methyl diazoacetate in the presence of triethylamine.
- It is used in the preparation of (triphenylphosphoranylidene)-ketene.
- The Wittig reaction we performed in class involved the reaction of 2-nitrobenzaldehyde (1) with methyl (triphenylphosphoranylidene) acetate (2) to produce methyl (2E)-3-(2-nitrophenyl) acrylate (3) with a triphenylphosphine oxide (4) side product, and took place in a silica gel matrix to ensure even product dispersion for chromatography.
Properties of Methyl (triphenylphosphoranylidene)acetate
| Melting point: | 168-172 °C (lit.) |
| Boiling point: | 165～170℃ |
| Density | 1.17±0.1 g/cm3(Predicted) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | Acetonitrile (Slightly), Chloroform (Slightly) |
| form | Powder |
| color | White to off-white |
| Water Solubility | insoluble |
| Sensitive | Air Sensitive |
Safety information for Methyl (triphenylphosphoranylidene)acetate
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Methyl (triphenylphosphoranylidene)acetate
| InChIKey | NTNUDYROPUKXNA-UHFFFAOYSA-N |
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