2,2-Diphenylacetic acid
- CAS NO.：117-34-0
- Empirical Formula: C14H12O2
- Molecular Weight: 212.24
- MDL number: MFCD00004251
- EINECS: 204-185-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 13:37:16
What is 2,2-Diphenylacetic acid?
Chemical properties
white to creamy-white crystalline powder
The Uses of 2,2-Diphenylacetic acid
Kinetic resolution of racemic 1-heteroarylalkanols by asymmetric esterification using diphenylacetic acid with pivalic anhydride and a chiral acyl-transfer catalyst is described. Molecular crystal of acridine and diphenylacetic acid and its absolute asymmetric photodecarboxylating condensation generates chirality in a two-component. The activation parameters for the racemization of a series of ortho-alkyl-substituted diphenylacetic acids are determined.
Definition
ChEBI: A monocarboxylic acid that is acetic acid where the methyl hydrogens have been replaced by two phenyl groups respectively.
Synthesis Reference(s)
Journal of the American Chemical Society, 69, p. 2325, 1947 DOI: 10.1021/ja01202a023
Synthetic Communications, 17, p. 1919, 1987 DOI: 10.1080/00397918708057804
Purification Methods
Crystallise the acid from *benzene, H2O or aqueous 50% EtOH. [Beilstein 9 H 673, 9 IV 2492.]
Properties of 2,2-Diphenylacetic acid
| Melting point: | 147-149 °C(lit.) |
| Boiling point: | 195°C 25mm |
| Density | 1,257 g/cm3 |
| vapor pressure | 0.001Pa at 25℃ |
| refractive index | 1.6000 (estimate) |
| Flash point: | 195°C/25mm |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | 0.13g/l |
| form | Crystalline Powder |
| pka | 3.94(at 25℃) |
| color | White to creamy-white |
| PH | 3.8 (H2O, 20℃)(saturated solution) |
| Water Solubility | Slightly soluble in water(0.13g/L). |
| Merck | 14,3316 |
| BRN | 1910978 |
| CAS DataBase Reference | 117-34-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzeneacetic acid, «alpha»-phenyl-(117-34-0) |
| EPA Substance Registry System | Benzeneacetic acid, .alpha.-phenyl- (117-34-0) |
Safety information for 2,2-Diphenylacetic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H319:Serious eye damage/eye irritation H412:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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 2,2-Diphenylacetic acid
| InChIKey | PYHXGXCGESYPCW-UHFFFAOYSA-N |
2,2-Diphenylacetic acid manufacturer
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ASM Organics
Andhra Pradesh
Phone:91-9866122393
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product: Diphenylacetic acid
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