4-Methylphenylacetone
4-Methylphenylacetone
CAS: 2096-86-8
Molecular Formula: C10H12O
4-Methylphenylacetone - Names and Identifiers
| Name | 4-Methylphenylacetone |
| Synonyms | 4-METHYLPHENYLACETONE 4-Methylphenylacetone (P-METHYLPHENYL)ACETONE 1-(4-Methylphenyl)acetone 4-Methyl benzene, acetone 1-(4-Methylphenyl)propan-2-one 1-(4-methylphenyl)propan-2-one 1-(4-Methylphenyl)propan-2-one, p-Tolylacetone |
| CAS | 2096-86-8 |
| InChI | InChI=1/C10H12O/c1-8-3-5-10(6-4-8)7-9(2)11/h3-6H,7H2,1-2H3 |
4-Methylphenylacetone - Physico-chemical Properties
| Molecular Formula | C10H12O |
| Molar Mass | 148.2 |
| Density | 0.96 |
| Boling Point | 132 °C |
| Flash Point | 97.1°C |
| Vapor Presure | 0.0982mmHg at 25°C |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.5130 (estimate) |
4-Methylphenylacetone - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
4-Methylphenylacetone - Reference Information
| preparation | 1) synthesis process of propionyl chloride 250kg propionic acid and 185kg phosphorus trichloride were put into a 500L glass-lined reaction pot, and the reaction was slowly heated, stirred at 50 ℃ for 6h, and left for 3H, the lower phosphorous acid was separated, and 297kg of propionphthalein chloride was obtained, with a yield of 95%. The obtained propionphthalein chloride could be used for the next production without purification. 2) put 225kg of anhydrous aluminum trichloride and 160kg of toluene in a 500L glass-lined reaction Pan, cool the jacket, slowly add 120kg of propionphthalein chloride Dropwise with stirring, keep the internal temperature not higher than 30 ℃, after addition, stirring at room temperature for 1 H, then slowly raising the temperature to 82 ℃, keeping the temperature for 2H and then cooling, hydrolyzing the reaction droplets in a 2000L glass lining reaction pot containing It mixed with ice and water at low temperature, and layered at rest, take the upper oily substance, wash to Neutral with water and saturated soda ash solution, dry, remove toluene at atmospheric pressure, and then collect the 96-100 ℃/930Pa fraction to obtain 4-methylphenylacetone content greater than 98%, the yield was 88%. |
| Application | 4-methylphenylpropanone is an important intermediate for the production of naomaining, its synthesis mechanism is a gram of Fu Fu acylation reaction, but due to the raw material toluene and ethylbenzene ring substituents on different, resulting in the ortho, Inter, P-phthalein product ratio difference, therefore, the choice of solvent, reaction time and temperature in the production process is different. |
Last Update：2024-04-09 15:16:45
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