Name | 2-Bromo-4-chlorophenol |
Synonyms | QR DG BE O-broMo-chloro-phenol 2-BROMO-4-CHLOROPHENOL 2-Bromo-4-chlorophenol Phenol, 2-bromo-4-chloro- Phenol, 2-bromo-4-chloro- (8CI)(9CI) |
CAS | 695-96-5 |
EINECS | 211-785-6 |
InChI | InChI=1/C6H4BrClO/c7-5-3-4(8)1-2-6(5)9/h1-3,9H |
Molecular Formula | C6H4BrClO |
Molar Mass | 207.45 |
Density | 1.6027 (rough estimate) |
Melting Point | 31-33 °C (lit.) |
Boling Point | 121-123 °C/10 mmHg (lit.) |
Flash Point | >230°F |
Solubility | methanol: 0.1g/mL, clear |
Vapor Presure | 0.0153mmHg at 25°C |
Appearance | White to light brown solid |
Color | White or Colorles to Yellow to Orange |
BRN | 2042871 |
pKa | 7.98±0.18(Predicted) |
Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
Refractive Index | 1.5730 (estimate) |
MDL | B152691 |
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. S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/39 - S24/25 - Avoid contact with skin and eyes. |
UN IDs | UN 2020 6.1/PG 3 |
WGK Germany | 3 |
HS Code | 29081000 |
Hazard Class | IRRITANT |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
Application | 2-bromo-4-chlorophenol is a phenolic derivative, which can be used as a pharmaceutical intermediate. 2-bromo-4-chlorophenol is a brominated phenol compound. Brominated phenolic compounds are an important class of organic compounds, on the one hand, brominated phenolic compounds not only serve as important organic reaction intermediates in organic synthesis, but also in the industrial production of dyes, materials, medicine and pesticide has important applications. On the other hand, in recent years, scientific research has found that brominated phenolic compounds have good biological activity in antioxidant, anti-inflammatory, anti-tumor, anti-microbial, anti-thrombosis and biological Antifeedant, but the content of natural organisms is low, therefore, it is necessary to study the efficient synthesis of brominated phenolic compounds. |
preparation | Add 20mg (4-chlorophenyl) trimethylsilyl ether to a l0mL round-bottom flask, weigh 24mg of sodium persulfate, 4mg of terpyridine ruthenium chloride and 9mg of lithium bromide, 2ml of acetonitrile was added into the round bottom flask with a syringe, and the rubber stopper with a needle was covered. As for the lW blue LED light, the reaction end point was monitored by TLC at room temperature, and the reaction solution was concentrated and then purified by column chromatography with the eluent of petroleum ether: ethyl acetate volume ratio of 20:1, the synthesis of 2-bromo-4-chlorophenol was completed, and 2-bromo-4-chlorophenol was obtained as a light orange liquid with a yield of 37%. |