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. 73112-16-0, name is 2,6-Dibromo-4-methylpyridine. A new synthetic method of this compound is introduced below., Application In Synthesis of 2,6-Dibromo-4-methylpyridine
A suspension of 2,6-dibromo-4-methylpyridine (2.91 g, 11.6 mmol), pivalic acid (0.25 mL, 2.11 mmol), potassium carbonate (2.92 g, 21.1 mmol), thiazole (0.75 mL, 10.6 mmol) and tetrakis(triphenylphosphine)palladium(0) (0.49 g, 0.42 mmol) in N,N- dimethylacetamide (23 mL) was heated at 130 C for 18 hours. The reaction mixture was diluted with ethyl acetate, filtered through a pad of CELITE, and washed with water (2x). The organic layer was dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by chromatography on silica gel (ethyl acetate/hexanes) to afford 2-bromo- 4-methyl-6-(l,3-thiazol-5-yl)pyridine. 1H NMR (600 MHz, CDC13) delta 8.80 (s, 1H), 8.29 (s, 1H), 7.38 (s, 1H), 7.19 (s, 1H), 2.34 (s, 3H).
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Reference:
Patent; MERCK SHARP & DOHME CORP.; MERCK CANADA INC.; ANTHONY, Neville, J.; ANDRESEN, Brian, M.; NORTHRUP, Alan, B.; CHILDERS, Kaleen, K.; DONOFRIO, Anthony; MILLER, Thomas, A.; LIU, Yuan; MACHACEK, Michelle, R.; WOO, Hyun Chong; SPENCER, Kerrie, B.; ELLIS, John Michael; ALTMAN, Michael, D.; ROMEO, Eric, T.; GUAY, Daniel; GRIMM, Jonathan; LEBRUN, Marie-Eve; ROBICHAUD, Joel, S.; WANG, Liping; DUBOIS, Byron; DENG, Qiaolin; WO2014/176210; (2014); A1;,
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