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. 17368-12-6, name is 2-Chloro-4-hydroxypyridine. A new synthetic method of this compound is introduced below., Application In Synthesis of 2-Chloro-4-hydroxypyridine
To a solution of 2-chloropyridin-4-ol (1 g, 7.75 mmol) in DMA (10 ml) was added bromocyclopropane (2.8 g, 23.2 mmol), Nal (1.16 g, 7.75 mmol) and CS2CO3 (5 g, 15.5 mmol). The mixture was stirred at MW 170 C for 20 minutes, and then MW 180 C for 30 minutes. The reaction mixture was extracted with EA. The organic layer was dried and concentrated. The residue was purified by flash column chromatography to give 300 mg of 2-chloro-4-cyclopropoxypyridine. 1H NMR (400MHz, CDC13 ) delta = 8.19 (d, J=5.8 Hz, IH), 7.02 (d, J=2.0 Hz, IH), 6.87 (dd, J=2.0, 5.8 Hz, IH), 3.80 (tt, J=3.0, 6.0 Hz, IH), 0.91 – 0.75 (m, 4H)
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Reference:
Patent; MERCK SHARP & DOHME CORP.; WU, Hao; KIM, Ronald M.; LIU, Jian; GAO, Xiaolei; BOGA, Sobhana Babu; GUIADEEN, Deodialsingh; LIU, Shilan; YANG, Chundao; WANG, Hongjian; WO2014/113932; (2014); A1;,
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