79623-38-4 - Names and Identifiers
79623-38-4 - Physico-chemical Properties
Molecular Formula | C6H2Br2F3N
|
Molar Mass | 304.89 |
Density | 2.052±0.06 g/cm3(Predicted) |
Boling Point | 243.1±35.0 °C(Predicted) |
Flash Point | 100.8°C |
Vapor Presure | 0.0511mmHg at 25°C |
Appearance | Solid |
pKa | -3.99±0.20(Predicted) |
Storage Condition | 2-8℃ |
Refractive Index | 1.513 |
79623-38-4 - Risk and Safety
Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38 - Irritating to eyes, respiratory system and skin.
|
Safety Description | S22 - Do not breathe dust.
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
|
Hazard Class | IRRITANT |
79623-38-4 - Introduction
2,3-dibromo-5-(trifluoromethyl)pyridine is an organic compound with the chemical formula C7H2Br2F3N. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: 2,3-dibromo-5-(trifluoromethyl) is pyridine as a colorless to yellow crystal or powdery solid.
-Melting point: about 59-61 ℃.
-Boiling point: about 221 ℃.
-Density: about 2.151g/cm³.
-Solubility: 2,3-dibromo-5-(trifluoromethyl)pyridine is slightly soluble or insoluble in common solvents, but soluble in solvents such as xylene, chloroform and dichloromethane.
Use:
2,3-dibromo-5-(trifluoromethyl)pyridine are mainly used in catalytic reactions in organic synthesis and as reaction intermediates. It acts as an important reagent and catalyst in many chemical reactions, such as for the preparation of amides, aromatic ethers and other organic compounds.
Preparation Method:
A commonly used preparation method is by reacting in the presence of dibromotrifluoromethylbenzene (2,3-dibromo-1,1,1-trifluoromethylbenzene) and pyridine (pyridine). A specific synthesis method may be that dibromotrifluoromethylbenzene and pyridine are heated to reflux in an appropriate solvent to allow the reaction to proceed.
Safety Information:
- 2,3-dibromo-5-(trifluoromethyl)pyridine has an irritating effect on the skin and should be cleaned in time after contact.
-use should wear appropriate protective gloves, glasses and other personal protective equipment.
-It may cause long-term adverse effects on aquatic life, so pollution to water bodies and the environment should be avoided.
- 2,3-dibromo-5-(trifluoromethyl)pyridine should be properly preserved, stored in a dry, cool place, away from fire and oxidizing agents.
Last Update:2024-04-10 22:29:15