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. 638218-78-7, name is 2-(6-Bromopyridin-2-yl)propan-2-ol. A new synthetic method of this compound is introduced below., Product Details of 638218-78-7
Into a lOOO-mL 3-necked round-bottom flask, was placed 6-(methylsulfanyl)-2-(prop-2-en-l-yl)-lH,2H,3H- pyrazolo[3,4-d]pyrimidin-3-one (20 g, 89.98 mmol, 1.00 equiv), 2-(6-bromopyridin-2- yl)propan-2-ol (24 g, 111.07 mmol, 1.23 equiv), 1,4-dioxane (500 mL), iodocopper (17.1 g, 89.79 mmol, 1.0 equiv), K2C03 (17.1 g, 122.83 mmol, 1.37 equiv). This was followed by the addition of methyl [2-(methylamino) ethyl] amine (10.8 mL) dropwise with stirring. The resulting solution was stirred overnight at 95C in an oil bath. The resulting mixture was cooled to room temperature. The mixture was then quenched by the addition of 100 mL of water. The resulting mixture was concentrated under vacuum. The residue was extracted with 3×500 mL of ethyl acetate and the organic layers combined. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:5- 1:3). This resulted in 15 g (47%) of l-[6-(2-hydroxypropan-2-yl) pyridin-2-yl]-6-(methylsulfanyl)-2-(prop-2-en-l-yl)-lH,2H,3H- pyrazolo[3,4-d]pyrimidin-3-one as a white solid. LC-MS(ES, m/z) M+l=358
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Reference:
Patent; NEWAVE PHARMACEUTICAL INC.; CHEN, Yi; (0 pag.)WO2019/165204; (2019); A1;,
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