5-Bromopentanenitrile Pentanenitrile, 5-bromo- 5-BROMOVALERONITRILE FOR SYNTHESIS
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Common Name | 5-BROMOVALERONITRILE |
CAS Number | 5414-21-1 |
Molecular Weight | 162.03 |
Molecular Formula | C5H8BrN |
Density | 1.388 g/mL at 25 °C (lit.) |
Boiling Point | 240.9±23.0 °C at 760 mmHg |
Melting Point | N/A |
Flash Point | 99.5±22.6 °C |
Exact Mass | 160.984009 |
PSA | 23.79000 |
LogP | 1.22 |
Vapour Pressure | 0.0±0.5 mmHg at 25°C |
Index of Refraction | 1.471 |
Storage condition | Inert atmosphere,2-8°C |
EINECS | 226-505-8 |
Made from butyl bromide and sodium cyanide. Sodium cyanide is added with water and heated in a water bath to dissolve, then a certain amount of 95% industrial ethanol and butyl bromide are added and refluxed for 25-30 hours, cooled to room temperature, sodium bromide is filtered out, and the filtrate is fractionated using a high-efficiency fractionation column. The alcohol is distilled out at 78-85°C, and the 85-140°C fraction is collected and treated with ammonium chloride to separate it into two layers. The upper layer of liquid is taken and fractionated again, and the 138-141°C fraction is collected as the finished product.
This substance is harmful to the environment and special attention should be paid to water pollution.
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