Electric Literature of 90942-47-5, A common heterocyclic compound, 90942-47-5, name is Methyl 5-(aminomethyl)-2-chlorobenzoate hydrochloride, molecular formula is C9H11Cl2NO2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
To a solution of methyl 5-(aminomethyl)-2-chlorobenzoate hydrochloride (1.80 g, 6.00 mmol) in THF (20 mL) were added DIPEA (3.096 g, 24.0 mmol) and pivaloyl chloride (1.2 mL, 9.0 mmol). The reaction mass was stirred at rt for 2 h, diluted with EtOAc and was washed with water, and brine. The organic layer was separated, dried, filtered and concentrated to afford 2.0 g of the title product. 1H NMR (300 MHz, DMSO-i): delta 8.16 (m, 1H), 7.65 (s, 1H), 7.53 (d, J = 8.4 Hz, 1H), 7.41 (d, J = 8.4 Hz, 1H), 4.25 (d, J = 5.7 Hz, 2H), 3.85 (s, 3H), 1.15 (s, 9H).
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; GLENMARK PHARMACEUTICALS S.A.; GHARAT, Laxmikant Atmaram; BANERJEE, Abhisek; KHAIRATKAR-JOSHI, Neelima; KATTIGE, Vidya Ganapati; WO2014/167444; (2014); A1;,
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