4-phenoxy-pheno
4-Phenoxyphenol
CAS: 831-82-3
Molecular Formula: C12H10O2
4-phenoxy-pheno - Names and Identifiers
| Name | 4-Phenoxyphenol |
| Synonyms | POP 4-Phenoxyphenol P-PHENOXYPHENOL 4-phenoxy-pheno phenol, 4-phenoxy- Phenol, p-phenoxy- Phenol, 4-phenoxy- o-Phenylhydroquinone 4-PHENOXYPHENOL FOR SYNTHESIS |
| CAS | 831-82-3 |
| EINECS | 212-611-1 |
| InChI | InChI=1/C12H10O2/c13-10-6-8-12(9-7-10)14-11-4-2-1-3-5-11/h1-9,13H |
| InChIKey | ZSBDGXGICLIJGD-UHFFFAOYSA-N |
4-phenoxy-pheno - Physico-chemical Properties
| Molecular Formula | C12H10O2 |
| Molar Mass | 186.21 |
| Density | 1.1032 (rough estimate) |
| Melting Point | 80-84 °C (lit.) |
| Boling Point | 177-180°C (11 mmHg) |
| Flash Point | 177-180°C/9mm |
| Water Solubility | insoluble |
| Solubility | toluene: 0.1g/mL, clear |
| Vapor Presure | 0.01-0.121Pa at 25℃ |
| Appearance | Solid |
| Color | colorless to light brown |
| BRN | 2047182 |
| pKa | 10.07±0.13(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.6010 (estimate) |
| MDL | MFCD00002331 |
| Physical and Chemical Properties | Melting Point: 83 - 85 Boiling Point: 177-180 at 11mm Hg |
4-phenoxy-pheno - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29095090 |
| Hazard Note | Irritant |
4-phenoxy-pheno - Reference Information
| LogP | 3.38-3.4 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | for the use of high-efficiency, low-toxicity pesticides, synthesis of fly ethers 4-hydroxy diphenyl ether, also known as 4-phenoxyphenol, is an intermediate of carbamate insecticides such as dioxyvere, and the sanitary insecticide pyripropyl ether. |
| production method | There are many preparation methods of 4-hydroxy diphenyl ether, among which the two process routes have low raw material cost and simple process. Hydroquinone and bromobenzene reaction with hydroquinone as raw material, add dimethyl sulfoxide solvent and 96% potassium hydroxide solution, at the same time into the nitrogen, stirring heated to 140 ℃, slowly drop the bromobenzene solution, in (145±5) the reaction time was 8H at ℃. After completion of the reaction, the aqueous phase was acidified by hydrochloric acid to precipitate crystals, and the yield was 88%-89%. P-chlorophenol method to a 2.50 ml three-head bottle equipped with a thermometer, a water separator and a magnetic stirrer were added 235g (42.1 mol) of phenol, 0.75g (mol) of sodium hydroxide and ML of toluene, and the separated water was heated. After desolvation, 64.3g(0.50 mol) of p-chlorophenol was added dropwise and 175g of copper salt was added as a catalyst, followed by reaction at ° C. For 8 hours. After recovery of phenol, acidification was performed with dilute hydrochloric acid. It was extracted with ether and washed with water. After drying and distillation, the 145~152 ℃(800Pa) fraction was collected to obtain 60g of product, yield 64%,m. p. 83~84 degrees C (literature value m. p. 85~86 degrees C). |
Last Update：2024-04-10 22:29:15
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View History
4-phenoxy-pheno
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