Adding a certain compound to certain chemical reactions, such as: 89581-38-4, Methyl 5-bromopyrimidine-2-carboxylate, 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, Product Details of 89581-38-4, blongs to pyrimidines compound. Product Details of 89581-38-4
Under the protection of N2, PdCl2(dppf) (0.337 g, 0.461 mmol) was added to an anhydrous 1,4-dioxane (200 mL) solution of methyl 5-bromo-2-pyrimidinecarboxylate (2.00g, 9.22 mmol), bis(pinacolato)diboron (2.80 g, 11.1 mol) and anhydrous potassium acetate (2.70 g, 27.7 mol), and the resulting mixture was heated to 100C to react overnight. After cooling and concentration under reduced pressure, water and ethyl acetate were added to the residue, stirred for 15 min, and filtered through Celite filler, and the Celite filler was rinsed with ethyl acetate. After the filtrate was layered, the aqueous phase was extracted with ethyl acetate once. The ethyl acetate phases were combined, washed with a saturated sodium chloride aqueous solution, dried with anhydrous sodium sulfate, and concentrated to obtain a brownish black residue. The residue was purified by silica gel column chromatography eluting with ethyl acetate/petroleum ether (5:1) to obtain a white solid product (1.47 g, 60%). 1H NMR (400 MHz, CDCl3) delta 9.19 (s, 2H), 4.10 (s, 3H), 1.39 (s, 12H).
At the same time, in my other blogs, there are other synthetic methods of this type of compound,89581-38-4, Methyl 5-bromopyrimidine-2-carboxylate, and friends who are interested can also refer to it.
Reference:
Patent; Chia Tai Tianqing Pharmaceutical Group Co.,Ltd; Centaurus BioPharma Co., Ltd.; Lianyungang Runzhong Pharmaceutical Co., Ltd.; LI, Jijun; WU, Wei; ZHU, Yan; WANG, Huting; ZHAO, Lijia; HE, Weinan; SUN, Yinghui; PENG, Yong; HAN, Yongxin; (108 pag.)EP3412669; (2018); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia