Category: 60186-89-2

Application of 60186-89-2, In the chemical reaction process,reaction time,type of solvent,can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product.An updated downstream synthesis route of 60186-89-2 as follows.

To a suspension of 4-bromo-2,6-dimethoxypyrimidine (Intermediate A) (10.3 g, 46.8 mmol) and sodium hydrogen carbonate (NaHCCh) (5.51 g, 65.6 mmol) in MeOH/H20 (1 : 1, 120 mL) at room temperature was added bromine (4.34 mL, 84.2 mmol). The reaction mixture was stirred at room temperature for 1.5 hours. The mixture was diluted with dichloromethane (DCM) (100 mL) and the layers were separated. The aqueous phase was extracted with DCM (2 x 30 mL). The organic extracts were combined, filtered through a phase separator cartridge and concentrated in vacuo. The crude product was purified by chromatography on silica gel (220 g, 0-10% EtOAc in isohexane, gradient elution) to afford the title compound 4,5-dibromo-2,6-dimethoxypyrimidine (8.48 g, 60%) as a pale orange solid. Analytical data: Rl 2.24 min (Method 1); m/z 297/299/301 (M+H)+ (ES+).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,60186-89-2, its application will become more common.

Reference:
Patent; CORCEPT THERAPEUTICS INCORPORATED; HUNT, Hazel; CREPIN, Damien Francis Philippe; HILL-COUSINS, Joseph Thomas; BAKER, Thomas Matthew; DUFFY, Lorna; (0 pag.)WO2019/236487; (2019); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Electric Literature of 60186-89-2, Adding some certain compound to certain chemical reactions, such as: 60186-89-2, name is 4-Bromo-2,6-dimethoxypyrimidine,molecular formula is C6H7BrN2O2, 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 60186-89-2.

Into a 1-L 3-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed 4-bromo-2,6-dimethoxypyrimidine (23 g, 105.01 mmol, 1 equiv), tetrahydrofuran (250 mL), Diethyl ether (250 mL). And n-BuLi(2.5M) (46.2 mg, 0.72 mmol, 1.10 equiv) was added dropwise at -78 C. After stirred for 5 min at -78 C, ethyl 2,2,2-trifluoroacetate (16.4 g, 115.43 mmol, 1.10 equiv) was added dropwise. After stirred for 30 min at -78 C, the resulting solution was stirred for overnight at RT. The reaction was then quenched by the addition of 200 mL of saturated NH4CI. Sodium carbonate was employed to adjust the pH to 8. The resulting solution was diluted with 1 L of EA. The resulting mixture was washed with 3×500 mL of brine. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1 : 100- 1 : 10). The collected fractions were combined and concentrated under vacuum. This resulted in 15 g (56%) of the title compound as an off-white solid. Analytical Data: LC-MS: (ES, m/z): RT = 0.739 min, LCMS 32: m/z = 255 [M+l].

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. 60186-89-2, 4-Bromo-2,6-dimethoxypyrimidine, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; EPIZYME, INC.; CAMPBELL, John Emmerson; DUNCAN, Kenneth William; FOLEY, Megan Alene; HARVEY, Darren Martin; KUNTZ, Kevin Wayne; MILLS, James Edward John; MUNCHHOF, Michael John; (586 pag.)WO2017/181177; (2017); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

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. 60186-89-2, name is 4-Bromo-2,6-dimethoxypyrimidine. A new synthetic method of this compound is introduced below., Safety of 4-Bromo-2,6-dimethoxypyrimidine

To a solution of 4-bromo-2,6-dimethoxy-pyrimidine (6.80 g, 27.94 mmol) in THF (190 mL) and diethylether (190 mL) n-butyllithium (in hexane/THF, 2.01 g, 30.74 mmol) is added dropwise with stirring at -78 C. After 4 min ethyl trifluoroacetate (4.46 g, 30.74 mmol) in THF (50 mL) is added dropwise at -78 C. The reaction mixture is stirred for 30 min at -78 C and then the reaction is allowed to warm to room temperature slowly and stirred over night at room temperature. To the reaction mixture 1 N HCI solution is added . The resulting mixture is extracted with EA and washed with sat. sodium chloride solution and water. The organic phase is dried over sodium sulfate, filtered and the solvent is evaporated in vacuo. The residue is purified by flash col umn chromatography (silica gel, PE / EA = 8 12) to give the product. MS (ESI+): m/z = 255 [M+H]+ TLC (silica gel, PE/EA 3/1 ): Rf = 0.20

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, 60186-89-2, 4-Bromo-2,6-dimethoxypyrimidine.

Reference:
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; EICKMEIER, Christian; GERLACH, Kai; HEINE, Niklas; WEBER, Alexander; GROSS, Ulrike; WO2014/127816; (2014); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.60186-89-2, name is 4-Bromo-2,6-dimethoxypyrimidine, molecular formula is C6H7BrN2O2, molecular weight is 219.036, as common compound, the synthetic route is as follows.Recommanded Product: 60186-89-2

To a microwave vial was charged (R) -5- (1-hydroxy-2- (2, 8-diazaspiro [4.5] decan-8-yl) ethyl) -4-methylisobenzofuran-1 (3H) -one (40 mg, 0.121 mmol) , 4-bromo-2, 6-dimethoxypyrimidine (26.5 mg, 0.121 mmol) , tris (dibenzylideneacetone) dipalladium (0) (5.54 mg, 6.05 mumol) , 2-dicyclohexylphosphino-2?, 4?, 6?-triisopropylbiphenyl (11.5 mg, 0.024 mmol) , and potassium phosphate (51.4 mg, 0.242 mmol) . The vial was sealed, degased, and filled with dioxane (0.60 mL) . The reaction mixture was heated at 100 overnight, diluted with water, extracted with EtOAc. The organic layer was washed with brined, dried, evaporated to give the crude product, which was purified by silica gel column chromatography (0-10 MeOH/DCM) to afford (R) -5- (2- (2- (2, 6-dimethoxypyrimidin-4-yl) -2, 8-diazaspiro [4.5] decan-8-yl) -1-hydroxyethyl) -4-methylisobenzofuran-1 (3H) -one. LC-MS (ESI, m/z) : 469 [M+1] +.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,60186-89-2, 4-Bromo-2,6-dimethoxypyrimidine, and friends who are interested can also refer to it.

Reference:
Patent; MERCK SHARP & DOHME CORP.; PASTERNAK, Alexander; DONG, Shuzhi; GU, Xin; JIANG, Jinlong; SHI, Zhi-Cai; WALSH, Shawn P.; WU, Zhicai; YU, Yang; FERGUSON II, Ronald; GUO, Zhiqiang; FRIE, Jessica; SUZUKI, Takao; BLIZZARD, Timothy A.; FU, Qinghong; VANGELDER, Kelsey F.; (118 pag.)WO2016/65582; (2016); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.60186-89-2, name is 4-Bromo-2,6-dimethoxypyrimidine, molecular formula is C6H7BrN2O2, molecular weight is 219.036, as common compound, the synthetic route is as follows.Safety of 4-Bromo-2,6-dimethoxypyrimidine

To a solution of 4-bromo-2,6-dimethoxy-pyrimidine (6.80 g, 27.94 mmol) in THF (190 mL) and diethylether (190 mL) n-butyllithium (in hexane/THF, 2.01 g, 30.74 mmol) is added dropwise with stirring at -78 C. After 4 min ethyl trifluoroacetate (4.46 g, 30.74 mmol) in THF (50 mL) is added dropwise at -78 C. The reaction mixture is stirred for 30 min at -78 C. and then the reaction is allowed to warm to room temperature slowly and stirred over night at room temperature. To the reaction mixture 1 N HCl solution is added. The resulting mixture is extracted with EA and washed with sat. sodium chloride solution and water. The organic phase is dried over sodium sulfate, filtered and the solvent is evaporated in vacuo. The residue is purified by flash column chromatography (silica gel, PE/EA=8/2) to give the product.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,60186-89-2, 4-Bromo-2,6-dimethoxypyrimidine, and friends who are interested can also refer to it.

Reference:
Patent; Boehringer Ingelheim International GmbH; EICKMEIER, Christian; GERLACH, Kai; HEINE, Niklas; WEBER, Alexander; GROSS, Ulrike; US2013/225593; (2013); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia