| 摘要 |
The process for the production of 2-chloronicotinic acid from nicotinic acid-N-oxide, characterized in that the 2-chloronicotinic acid chloride is distilled off from the reaction mixture and the distillate is allowed to flow into water at a temperature of 40 DEG to 100 DEG C. The 2-chloronicotinic acid chloride is hydrolized to the 2-chloronicotinic acid, which precipitates in a pure white crystalline form. |
