With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1121-13-7,4-Nitroisoxazole,as a common compound, the synthetic route is as follows.
To a solution of 4b (200mg, 1.75mmol) in con. HCl (9mL) was added SnCl2.2H2O (1.98g, 8.77mmol). The mixture was stirred at rt for 1.5h, then adjusted by SaLNa2CO3 to pH=8~9 and filtered. The water phase was extracted with EA (30×4) and the combined extract was dried over anhydrous Na2SO4 and filtered. 5OmL of HClZEt2O solution was added to the filtrate and stirred for 30 min then evaporated to dryness to give 4c (125mg, 59%)., 1121-13-7
1121-13-7 4-Nitroisoxazole 11332437, aIsoxazoles compound, is more and more widely used in various fields.
Reference£º
Patent; XCOVERY, INC.; WO2009/154769; (2009); A1;,
Isoxazole – Wikipedia
Isoxazole | C3H3NO – PubChem