Category: 106447-97-6

Reference of 106447-97-6 ,Some common heterocyclic compound, 106447-97-6, molecular formula is C6H5F3N2, 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.

Method 7; Synthesis of 5-bromo-4-(trifluoromethvl)-2-pvridylamine; [0247] To a solution of 2-amino-4-trifluoromethylpyridine (10.0 g, 62.1 mmol) in chloroform (200 mL) was added NBS (12.0 g, 67.4 mmol). The solution was stirred in the dark for 2 hours, at which time it was added to DCM (200 mL) and IN NaOH (200 mL). Upon mixing, the layers were separated and the organic layer was washed with NaCl(sat) (10O mL), dried over Na2SO4, filtered and concentrated. The crude material was purified by Silica gel chromatography (0-5% EtOAc/ CH2Cl2) yielding 12.O g (80%) of 5-bromo-4-(trifluoromethyl)-2-pyridylamine: LCMS (m/z): 241/243 (MH+); 1H NMR (CDCl3): delta 8.28(s, IH), 6.77(s, IH), 4.78(bs, 2H).

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles. 106447-97-6, 2-Amino-4-(trifluoromethyl)pyridine, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; NOVARTIS VACCINES AND DIAGNOSTICS, INC.; WO2008/98058; (2008); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 106447-97-6, name is 2-Amino-4-(trifluoromethyl)pyridine. A new synthetic method of this compound is introduced below., Quality Control of 2-Amino-4-(trifluoromethyl)pyridine

To a solution of 2-amino^l- trifluoromethyl-pyridine (2.00 g, 0.0123 mol) in DMF (4 mL, 0.05 mol) was added a solution of 1,3-dichloro-5,5- dimethylhydantoin (1.4 g, 0.0074 mol) in DMF (4 mL) dropwise. The reaction was stirred at room temperature for 2 hr, whereupon the reaction mixture was diluted with ether (80 mL) and washed with water (10 mL). The organic phase was dried and concentrated to give the crude product, which was purified on combiflash (0-20% EtOAc/Hexanes) to give compound G.5 as light yellow oil. (65% yield); 1H NMR: (DMSO-d6) delta 8.16 (s, 1H), 6.87 (s, 1H), 6.76 (brs, 1H); LCMS: m/z 197 [M+l].

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it, 106447-97-6, 2-Amino-4-(trifluoromethyl)pyridine.

Reference:
Patent; BIOGEN IDEC MA INC.; SUNESIS PHARMACEUTICALS, INC.; CHUAQUI, Claudio; COSSROW, Jennifer; DOWLING, James; GUAN, Bing; HOEMANN, Michael; ISHCHENKO, Alexey; JONES, John, Howard; KABIGTING, Lori; KUMARAVEL, Gnanasambandam; PENG, Hairuo; POWELL, Noel; RAIMUNDO, Brian; TANAKA, Hiroko; VAN VLOTEN, Kurt; VESSELS, Jeffrey; XIN, Zhili; WO2010/78408; (2010); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 106447-97-6, 2-Amino-4-(trifluoromethyl)pyridine, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, Recommanded Product: 2-Amino-4-(trifluoromethyl)pyridine, blongs to pyridine-derivatives compound. Recommanded Product: 2-Amino-4-(trifluoromethyl)pyridine

Step 1: 5-Bromo-4-(trifluoromethyI)pyridin-2-amineTo a stirred solution of 4-(trifuioromethyl)pyridine-2amine (2.5 g, 0.01542 mol) in dichloromethane (250 mL) was added N-bromosuccinimide (2.74 g, 0.01542 mol) in portions under dark conditions at room temperature and stirring was continued at room temperature for 6 h. The reaction mixture was diluted with IN NaOH solution (20 mL) and extracted with DCM (2×100 mL). The combined organic layers were dried over sodium sulfate, filtered and evaporated under reduced pressure to afford the title compound (3.2 g, 86%). *H NMR (400 MHz, CDCI3) : delta 8.28 (s, 1H), 6.77 (s, 1H), 4.73 (brs, 2H); ESI-MS : Calculated mass: 239.95; Observed mass: 239.10 [M-H]”.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,106447-97-6, 2-Amino-4-(trifluoromethyl)pyridine, and friends who are interested can also refer to it.

Reference:
Patent; ASANA BIOSCIENCES, LLC; THOMPSON, Scott, K.; SMITH, Roger, A.; REDDY, Sanjeeva; JOHN, Tyler, M.; NYAVANANDI, Vijay, Kumar; SUBRAMANYA, Hosahalli; POTLURI, Vijay; PANIGRAHI, Sunil, Kumar; NADIPALLI, Prabhakara, Rao; SENGUPTA, Saumitra; WO2014/169167; (2014); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 106447-97-6, 2-Amino-4-(trifluoromethyl)pyridine, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, category: pyridine-derivatives, blongs to pyridine-derivatives compound. category: pyridine-derivatives

Weighing N-bromo succinimide (1.12g, 6 . 3mmol) is added to thf (7.25 ml) in, cooling to 0 C, the 4 – (trifluoromethyl) pyridin-2-amine (0.97g, 6mmol) dissolved in tetrahydrofuran (5.75 ml) in, dropping slowly added to the above-mentioned solution, keeping the temperature at 0 C, after dripping, slowly to room temperature, stirring 0.5 hours, adding sodium thiosulfate (0.25g) aqueous solution (4.75 ml) quenching, concentrated, crude product by silica gel column chromatography (petroleum ether: ethyl acetate = 3:1) purification, to obtain the title compound (1.2g, yield 83.3%).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,106447-97-6, 2-Amino-4-(trifluoromethyl)pyridine, and friends who are interested can also refer to it.

Reference:
Patent; Shandong Xuanzhu Oharma Co., Ltd.; Wu, Yongjian; (47 pag.)CN105541792; (2016); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem