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. 756520-66-8, name is 1-(2,6-Dichloro-3-fluorophenyl)ethanol. A new synthetic method of this compound is introduced below., Recommanded Product: 756520-66-8
A slurry of l-(2,6-dichloro-3-fluorophenyl)ethanol (4.6 g, 22 mmol) and P2O5 (17.5 g, 0.12 mol) in DCM (200 mL) was stirred at rt for 16 hours. The solid was filtered off through a pad of CELITE, and washed with DCM (200 mL) for several times. The filtrate was washed with saturated Na2C03 aqueous solution (100 mL x 2). The separated organic layer was dried over anhydrous Na2S04, and concentrated in vacuo. The white solid precipitated during concentration was discarded. The remained oil was dried in vacuo, and used directly in the next step without further purification (3.5 g, 83%). MS (ESI, pos. ion) m/z: 191.0 (M+l); 1H NMR (400 MHz, DMSO- e): delta 7.60-7.50 (m, 1H), 7.45-7.35 (m, 1H), 6.75-6.63 (m, 1H), 5.90-5.75 (m, 2H).
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Reference:
Patent; CALITOR SCIENCES, LLC; SUNSHINE LAKE PHARMA CO., LTD.; XI, Ning; LI, Xiaobo; WO2014/193647; (2014); A2;,
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