| CAS:69045-78-9 MF: C6H3Cl4N |
Physical and chemical properties
Appearance and properties: white semisolid
Density: 1.417 g/mL at 25 ° C (lit.)
Melting point: 32-34 ° C (lit.)
Boiling point: 152 ° C
Flash: > 230 ° F
Production methods
The preparation method is based on 3-methylpyridine as the raw material, 2-chloro-5-trichloromethylpyridine is chlorinated first, and then further fluorinated to obtain the product; The product can also be obtained by using 3-methylpyridine as raw material and fluorination reaction in the presence of catalyst. It is also possible to use 2-chloro-5-methylpyridine as the raw material, and chlorinate the side chain into 2-chloro-5-trichloromethyl pyridine with chlorine gas first, and then fluorinate the product with hydrogen fluoride.
use
It is mainly used in the production of agricultural chemicals such as pyrifos and pharmaceuticals.