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. 101990-73-2, name is 2-Chloro-4-(chloromethyl)pyridine. A new synthetic method of this compound is introduced below., Recommanded Product: 101990-73-2
To a solution of ethyl 5-methyl-lH-l ,2,4-triazole-3-carboxylate (50 mg, 0.28 mmol) and 2-chloro-4-(chloromethyl)pyridine (50 mg, 0.31 mmol) in DMF (2 mL), K2CO3 (116 mg, 0.84mmol) was added. The mixture was stirred at RT overnight, and was then diluted with H20 (20 mL), extracted with EtOAc (3 x 20 mL), 4: 1 CHCl3: PrOH (3 x 20 mL), dried with MgS04 and concentrated under reduced pressure. The crude product was purified on a Biotage pre-packed silica gel column (EtOAc:Hexane 12% to 100% EtOAc) to afford ethyl l-((2- chloropyridin-4-yl)methyl)-5-methyl-lH-l ,2,4-triazole-3-carboxylate (29 mg, 40%) as a white solid. MS(ES+) Ci2H13ClN402 requires: 280 found: 281 [M+H]+.
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Reference:
Patent; JONES, Philip; DIFRANCESCO, Maria, Emilia; PETROCCHI, Alessia; CARROLL, Christopher, L.; MARSZALEK, Joe; CZAKO, Barbara; JOHNSON, Ryan; THEROFF, Jay; WO2014/31936; (2014); A2;,
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