In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 261723-28-8, name is (3-Bromo-2-fluorophenyl)methanamine belongs to bromides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Safety of (3-Bromo-2-fluorophenyl)methanamine
Step 1: A-(3-Bromo-2-fluorobenz l)-2-mercaptoacetamide (3-Bromo-2-fluorophenyl)methanamine (1.50 g, 7.35 mmol) was added to mercaptoacetic acid (0.613 mL, 8.82 mmol) under nitrogen. The mixture was heated to reflux using a Dean-Stark apparatus for about 18 h. The volatiles were evaporated in vacuo and the residue was purified on silica gel using a gradient of 10-50% EtOAc/heptane to afford the title product (1.53 g, 75%). lH NMR (500 MHz, DMSO-d6) delta 8.56 (t, J —– 5.8 Hz, M I L 7.60 (ddd, J —— 8.2, 6.7, 1.7 Hz, IH), 7.34 (dddd, J —— 7.7, 6.9, 1.7, 0.8 Hz, 1H), 7.14 (td, J= 7.8, 0.9 Hz, IH), 4.42 – 4.29 (m, 2H), 3.16 (s, 21 h. 2.80 (s, 1H).
The synthetic route of 261723-28-8 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; ABBVIE INC.; ARGIRIADI, Maria; BREINLINGER, Eric; DIETRICH, Justin, D.; FRIEDMAN, Michael; IHLE, David; MORYTKO, Michael; MULLEN, Kelly; OSUMA, Augustine; LO SCHIAVO, Gloria, Y.; WILSON, Noel, S.; (303 pag.)WO2016/168633; (2016); A1;,
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