Downstream synthetic route of 42831-50-5

As the paragraph descriping shows that 42831-50-5 is playing an increasingly important role.

42831-50-5,42831-50-5, 5-Methylisoxazole-4-carboxylic acid is a Isoxazoles compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

(iv) 5-Methylisoxazol-4-yl carbonyl chloride Thionyl chloride (118 g) was added to 5-methylisoxazol-4-yl carboxylic acid (42 g) and stirred at room temperature as dimethylformamide (0.2 ml) was added. The solution was heated under reflux for 2 hours with stirring. Excess thionyl chloride was removed in vacuo at 50C, then the residue was distilled through a 15 cm Vigreaux column at reduced pressure to give an oil, b.p. 32-34C/0.1 mm Hg.

As the paragraph descriping shows that 42831-50-5 is playing an increasingly important role.

Reference£º
Patent; LILLY INDUSTRIES LIMITED; EP257882; (1991); B1;,
Isoxazole – Wikipedia
Isoxazole | C3H3NO – PubChem