4,4'-Dimethoxybenzophenone
- CAS NO.：90-96-0
- Empirical Formula: C15H14O3
- Molecular Weight: 242.27
- MDL number: MFCD00008404
- EINECS: 202-028-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-06 16:16:49
What is 4,4'-Dimethoxybenzophenone?
Chemical properties
white to light yellow crystal powder
The Uses of 4,4'-Dimethoxybenzophenone
4,4'-Dimethoxybenzophenone is used in the organic synthesis. It also acts as a pharmaceutical intermediate. It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and Dyestuff.
Preparation
btained by photocatalytic oxidation of 4,4–′-dimethoxybenzhydrol (m.p. 69–71°) catalyzed by H3PW12O40/SiO2 in acetonitrile under oxygen atmosphere at r.t. for 1 h (90%).
Synthesis Reference(s)
Journal of the American Chemical Society, 91, p. 3037, 1969 DOI: 10.1021/ja01039a036
Tetrahedron Letters, 30, p. 1277, 1989 DOI: 10.1016/S0040-4039(00)72735-3
General Description
Photoreactivity of 4,4′-dimethoxybenzophenone with 2-aminobenzimidazole has been examined. It is an ultraviolet absorbing additive in plastic products.
Purification Methods
Crystallise the ketone from absolute EtOH, aqueous EtOH or EtOH/AcOH. The 2,4-dinitrophenylhydrazone has m 199-200o. [Beilstein 8 H 317, 8 I 641, 8 II 355, 8 III 2649, 8 IV 2453.]
Properties of 4,4'-Dimethoxybenzophenone
| Melting point: | 141-143 °C (lit.) |
| Boiling point: | 200 °C17 mm Hg(lit.) |
| Density | 1.1515 (rough estimate) |
| refractive index | 1.5570 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Chloroform (Slightly), Ethyl Acetate (Slightly) |
| form | Powder |
| color | Slightly beige to yellow |
| Water Solubility | It is insoluble in water, soluble in ethanol. |
| BRN | 1878026 |
| CAS DataBase Reference | 90-96-0(CAS DataBase Reference) |
| NIST Chemistry Reference | P,p'-dimethoxybenzophenone(90-96-0) |
Safety information for 4,4'-Dimethoxybenzophenone
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
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. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 4,4'-Dimethoxybenzophenone
| InChIKey | RFVHVYKVRGKLNK-UHFFFAOYSA-N |
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