Some tips on 3209-71-0

3209-71-0 Isoxazole-3-carboxylic Acid 11286453, aIsoxazoles compound, is more and more widely used in various fields.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.3209-71-0,Isoxazole-3-carboxylic Acid,as a common compound, the synthetic route is as follows.

Solid NaH (60% wt in oil) (425 mg, 10.6 mmol) was added to a THF solution (50 mL) of isoxazole-3-carboxylic acid (1.0 g, 8.8 mmol). After 15 min neat ethylchloroformate (1.0 mL, 10.6 mmol) was added. After 45 min a 7 N ammonia solution in MeOH (5.0 mL, 35 mmol) was added. After 30 min the mixture was diluted with EtOAc washed with water and brine, dried (Na2SO4) and dry packed onto silica gel. Column chromatography gave 600 mg of the title compound., 3209-71-0

3209-71-0 Isoxazole-3-carboxylic Acid 11286453, aIsoxazoles compound, is more and more widely used in various fields.

Reference£º
Patent; JANSSEN PHARMACEUTICA NV; BARBAY, J., Kent; CHAKRAVARTY, Devraj; SHOOK, Brian, Christopher; WANG, Aihua; WO2010/45006; (2010); A1;,
Isoxazole – Wikipedia
Isoxazole | C3H3NO – PubChem