1138444-17-3 | Pyridine-derivatives

New downstream synthetic route of 6-Bromo-2-chloro-3-iodopyridine

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 1138444-17-3, 6-Bromo-2-chloro-3-iodopyridine.

Related Products of 1138444-17-3, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 1138444-17-3, name is 6-Bromo-2-chloro-3-iodopyridine. This compound has unique chemical properties. The synthetic route is as follows.

To a mixture of 6-bromo-2-chloro-3-iodopyridine (8.0 g, 25.1 mmol), (E)-2-(2- ethoxyvinyl)-4,4,5 ,5-tetramethyl- 1,3 ,2-dioxaborolane (4.98 g, 25.1 mmol), cesium carbonate (16.38 g, 50.3 mmol), and [1,1 ?-bis(diphenylphosphino)ferrocene] dichloropalladium(II) (2.052,2.51 mmol) was added 1,4-dioxane (100 mL) and H20 (10 mL). A steady stream of N2 was bubbled through the reaction mixture for 15 minutes then the mixture was heated to 73 C for 20h. The mixture was cooled to ambient temperature, diluted with EtOAc, and washed successively with H20 (2X) and brine (lx). The organic layer was dried over MgSO4, filtered,and concentrated in vacuo. The residue was purified by silica gel column chromatography using a step gradient of 0-10-60% EtOAc/Hexanes as eluent. MS (M+H): 261.

Reference:
Patent; MERCK SHARP & DOHME CORP.; DAI, Xing; LIU, Hong; PALANI, Anandan; HE, Shuwen; BROCKUNIER, Linda, L.; NARGUND, Ravi; MARCANTONIO, Karen; ZORN, Nicolas; XIAO, Dong; PENG, Xuanjia; LI, Peng; GUO, Tao; WO2014/123793; (2014); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

New downstream synthetic route of 6-Bromo-2-chloro-3-iodopyridine

The origin of a common compound about 1138444-17-3

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,1138444-17-3, its application will become more common.

Reference of 1138444-17-3 ,Some common heterocyclic compound, 1138444-17-3, molecular formula is C5H2BrClIN, 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.

6-Bromo-2-chloro-3-iodopyridine (1.50 g, 4.71 mmol) was dissolved in THF (15 mL) and cooled to -78 C, followed by addition of isopropylmagnesium chloride-lithium chloride complex (3.99 mL, 5.18 mmol). The mixture was stirred at -78C for 1 h. 2- (benzyloxy)acetaldehyde (0.849 g, 5.65 mmol) was added and the resulting mixture warmed to 0C and stirred for 2 h. The mixture was treated with saturated NH4C1 and extracted with ethylacetate. The organic layer was washed with brine, dried (Na2SO4), filtered and concentrated in vacuo to gave 2-(benzyloxy)-1-(6-bromo-2-chloropyridin-3-yl)ethanol (1.54g, yield: 95%). MS (M+H): 344.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,1138444-17-3, its application will become more common.