Pyridine, 4-phenyl-, 1-oxide
4-Phenylpyridine-N-oxide
CAS: 1131-61-9
Molecular Formula: C11H9NO
Pyridine, 4-phenyl-, 1-oxide - Names and Identifiers
| Name | 4-Phenylpyridine-N-oxide |
| Synonyms | AI3-62312 NSC 187559 4-phenyl-pyridin1-oxide 4-PHENYLPYRIDINE N-OXIDE 4-Phenylpyridine N-oxide 4-Phenyl-pyridine1-oxide 4-Phenylpyridine-1-oxide 4-Phenylpyridine 1-oxide 4-Phenylpyridine-N-oxide Pyridine,4-phenyl-,1-oxide Pyridine, 4-phenyl-, 1-oxide 1-Oxylato-4-phenylpyridinium 1-Oxido-4-phenylpyridin-1-ium |
| CAS | 1131-61-9 |
| EINECS | 214-467-5 |
| InChI | InChI=1/C11H9NO/c13-12-8-6-11(7-9-12)10-4-2-1-3-5-10/h1-9H |
Pyridine, 4-phenyl-, 1-oxide - Physico-chemical Properties
| Molecular Formula | C11H9NO |
| Molar Mass | 171.2 |
| Density | 1.1242 (rough estimate) |
| Melting Point | 153-155°C(lit.) |
| Boling Point | 301.18°C (rough estimate) |
| Flash Point | 202.3°C |
| Vapor Presure | 1.38E-06mmHg at 25°C |
| Appearance | powder to crystal |
| Color | Light yellow to Brown |
| BRN | 121493 |
| pKa | 0.89±0.10(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.4900 (estimate) |
Pyridine, 4-phenyl-, 1-oxide - Risk and Safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 3-9 |
Pyridine, 4-phenyl-, 1-oxide - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Introduction | 4-phenylpyridine-N-oxide can be used as an intermediate in pharmaceutical synthesis. There are many reports in the literature that 4-phenylpyridine-N-oxide can be obtained after oxidation from 4-phenylpyridine as the reaction raw material. |
| Preparation method | At 0°C, to 4-phenylpyridine (5.5-6.7mmol) in CHCl3(2mL) The stirred solution of 70% m-CPBA(1mol equivalent) is added in batches. The resulting mixture was stirred at room temperature for 12h, when complete consumption of the feedstock was observed by TLC, the reaction mixture was diluted with CHCl3 and solid K2CO3(4 molar equivalents) was added, the resulting mixture was stirred for another 10 min, the solids were separated by filtration, and the filtrate was dried with Na2SO4, and concentrated under reduced pressure to produce 4-phenylpyridine-N-oxide in a yield of 86-90% in a yield of 86-90%. |
Last Update：2024-04-10 22:29:15
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