Application of 886365-47-5 ,Some common heterocyclic compound, 886365-47-5, molecular formula is C7H5BrClNO, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.
Starting material l-(5- bromo-2-chloropyridin-3-yl)ethanone (5.8 g, 24.7 mmol) and 100 ml anhydrous hydrazine was charged into 500 ml round bottom flask and the resulting mixture was allowed to stir at room temperature for overnight. After removing the excess hydrazine via rotatory evaporation under reduced pressure, the remaining residue was diluted with distilled water and solid was appeared. After filtering the water, the resulting solid was taken up in ethylacetate and saturated aqueous sodium bicarbonate and was extracted by ethylacetate twice. The combined organic layer was washed with water and brine and dried over sodium sulfate. The crude product was eluted through a short silica gel column (3 inch in length) with ethylacetate as a white solid (4.0 g, y=77%).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,886365-47-5, its application will become more common.
Reference:
Patent; AMGEN, INC.; WO2006/44860; (2006); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem