192436-83-2, name is 4-Bromo-N-methoxy-N-methylbenzamide, belongs to amides-buliding-blocks compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. COA of Formula: C9H10BrNO2
To a stirred solution of 2-fluoro-4-bromoanisole (3.03 g, 14.8 mmol) in anhydrous THF (100 mL) was added n-butyllithium (1.6 M in hexanes, 10.2 mL, 16.3 mol) dropwise at-78 C. The reaction mixture was stirred for 1 h and 80 (4.02 g, 16.3 mmol) dissolved in THF (20 mL) was added dropwise. The reaction mixture was warmed to-20 C over 1 h, water (100 mL) was added, and the volatiles were removed under reduced pressure. The mixture was extracted with ether (3 x 100 mL) and the combined extracts were washed with water (100 mL) and brine (100 mL). The mixture was dried over MgS04 and concentrated. The residue was chromatographed on silica gel (20: 1 to 5: 1 hexanes: EtOAc) to afford 2.35 g (51%) of 81 as a white crystalline SOLID. H NMR (400 MHz, CDCI3) : 8 3.97 (s, 3H), 7.01 (t, J = 8.4 Hz, 1 H), 7.55-7. 62 (m, 6H).
The synthetic route of 192436-83-2 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; SMITHKLINE BEECHAM CORPORATION; WO2005/12220; (2005); A2;,
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