3 5-DIBROMO-2-FLUOROPYRIDINE（CAS# 473596-07-5)
| 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. R25 – Toxic if swallowed |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 – Wear suitable protective clothing. S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| Hazard Class | IRRITANT |
Introduction
3,5-Dibromo-2-fluoropyridine is an organic compound with the chemical formula C5H2Br2FN. The following is a description of its nature, use, formulation and safety information:
Nature:
- 3,5-Dibromo-2-fluoropyridine is a solid compound with a white crystalline appearance.
-Its melting point is 74-76 ℃, and its boiling point is 238-240 ℃.
-It is insoluble in water at room temperature, but can be dissolved in some organic solvents such as ether and ethanol.
Use:
- 3,5-Dibromo-2-fluoropyridine is an important intermediate compound widely used in organic synthesis reactions.
-It can be used as a raw material for organic photovoltaic materials, and can also be used to prepare medicines, dyes and pesticides.
Preparation Method:
- 3,5-Dibromo-2-fluoropyridine can be prepared by the reaction of pyridine iodide and cuprous bromide.
-First dissolve cuprous bromide and pyridine iodide in dimethyl sulfoxide at room temperature to form a reactant, then slowly add silver fluoride dropwise at low temperature, and finally heat until the reaction is completed.
Safety Information:
- 3,5-Dibromo-2-fluoropyridine is irritating to the skin and eyes, and protective measures should be paid attention to when in contact.
-Pay attention to good ventilation when using this compound.
-It decomposes at high temperature will produce harmful gases, and it is necessary to avoid exposure to open flames or high temperature environments.
-Store it in a sealed manner and avoid contact with oxidants and strong acids to avoid dangerous reactions.
