A new synthetic route of Methyl 6-amino-3-bromopicolinate

According to the analysis of related databases, 178876-83-0, the application of this compound in the production field has become more and more popular.

Reference of 178876-83-0, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 178876-83-0, name is Methyl 6-amino-3-bromopicolinate. This compound has unique chemical properties. The synthetic route is as follows.

To a solution of methyl 6-amino-3-bromopicolinate (2.00 g, 8.66 mmol, 1 eq) in EtOH (15 mL) was added chloroacetaldehyde (13.6 g, 86.58 mmol, 50% purity, 10 eq) and NaHC03 (1.24 g, 14.72 mmol, 1.7 eq). The mixture was stirred at 95 C for 5.5 hours (hr). The reaction mixture was filtered and concentrated under reduced pressure. The residue was adjusted to pH=9 with K2C03 aqueous solution and extracted with chloroform. The combined organic layers were washed with brine, and dried over MgS04. The concentrated residue was purified by flash chromatography (Si02, pentane/ethyl acetate/MeOH = 2: 1 :0.03). Example 1 A (2.0 g, 91% yield) was obtained as a brown solid. Mass spectrum (ESI), m/z 255.0 and 257.1 [M + H]+.

According to the analysis of related databases, 178876-83-0, the application of this compound in the production field has become more and more popular.

Reference:
Patent; CHRYSALIS, INC.; GWALTNEY, Stephen; (147 pag.)WO2017/214413; (2017); A1;,
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