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2-Chloro-3-cyanopyridine CAS 6602-54-6 - Trusted China Suppliers & Factory for Quality Chemicals
The product is prepared by chlorination reaction of 3-cyanopyridine nitrogen oxide and a chlorinating agent. Phosphorus pentachloride is used as a chlorinating agent and phosphorus oxychloride is used as a solvent to react 3-cyanopyridine nitrogen oxide and phosphorus pentachloride.
Reaction Setup
Utilizes Phosphorus pentachloride (PCl5) as the chlorinating agent and Phosphorus oxychloride (POCl3) as the solvent.
Distillation Process
After the reaction, phosphorus oxychloride is efficiently removed by vacuum distillation.
Final Purification
Includes ice water addition, cooling, crystallization, filtration, washing, and drying.
After the reaction is completed, phosphorus oxychloride is removed by vacuum distillation. Ice water is slowly added to the distillation residue, cooled and crystallized, filtered, washed with cold water, and dried to obtain the target product.
Frequently Asked Questions
1. What is the primary chemical reaction used for this product?
The product is prepared through a chlorination reaction involving 3-cyanopyridine nitrogen oxide and a specific chlorinating agent.
2. Which chlorinating agent and solvent are used in the process?
Phosphorus pentachloride is utilized as the chlorinating agent, while phosphorus oxychloride serves as the solvent for the reaction.
3. How is the phosphorus oxychloride solvent removed?
Once the reaction reaches completion, the phosphorus oxychloride is removed from the mixture using vacuum distillation.
4. What is the procedure following vacuum distillation?
Ice water is slowly added to the distillation residue, which is then cooled to allow for crystallization.
5. How is the final target product collected and purified?
The crystallized product is filtered, washed thoroughly with cold water, and dried to achieve the final target state.