Synthetic Route of 65550-78-9 ,Some common heterocyclic compound, 65550-78-9, molecular formula is C6H5BrIN, 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.
A. 5-Iodo-3-methyl-2-methoxy-pyridine. To a solution containing 2-bromo-5-iodo-3-methyl-pyridine (4.80 g, 16.0 mmol) in DMSO (15 ML) is added methanolic NaOMe (3.33 M, 5.3 ML, 17.7 mmol) at 0 C. The solution is allowed to warm to ambient temperature and then heated at 70 C. for 1 hour.The reaction mixture is diluted with diethyl ether (300 ML) and water (200 ML) and the layers are separated.The organic phase is washed with brine, dried over anhydrous Na2SO4, filtered and concentrated.The crude product is purified by silica gel flash column chromatography (hexane/diethyl ether, 19:1) to provide 2.86 g (71%) of the title compound as a white solid. 1H NMR (300 MHz, CDCl3) delta2.12 (s, 3H), 3.90 (s, 3H), 7.60 (d, J=2.1 Hz, 1H), 8.14 (d, J=2.1 Hz, 1H) ppm; MS (EI): m/z 249 (M+).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,65550-78-9, its application will become more common.
Reference:
Patent; AVENTIS PHARMACEUTICALS INC.; US2004/102450; (2004); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem