3-METHOXYPICOLINIC ACID METHYL ESTER Chemical Properties

Boiling point:

280.4±20.0 °C(Predicted)

Density 

1.156±0.06 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

pka

1.16±0.10(Predicted)

Appearance

Colorless to yellow Liquid

Safety Information

HS Code 

2933399990

3-METHOXYPICOLINIC ACID METHYL ESTER Usage And Synthesis

Synthesis

In a 50 mL round-bottomed flask equipped with a magnetic stirrer, methyl 3-hydroxy-2-pyridinecarboxylate (3.5 g, 22.80 mmol), potassium carbonate (3.46 g, 25.0 mmol), iodomethane (4.87 g, 34.3 mmol), and N,N-dimethylformamide (20 mL) were added sequentially. The reaction mixture was stirred at room temperature for 18 h under nitrogen protection. After completion of the reaction, the reaction mixture was diluted with ethyl acetate (30 mL) and water (10 mL). The organic phase was separated and the aqueous phase was extracted with ethyl acetate (3 × 10 mL). The organic phases were combined, dried with anhydrous sodium sulfate, and concentrated under reduced pressure to give the crude product. The crude product was purified by silica gel column chromatography with the eluent being a hexane solution of 30% ethyl acetate to give 2.1 g of methyl 3-methoxypyridine-2-carboxylate in 54% yield.

References

[1] ChemMedChem, 2016, vol. 11, # 23, p. 2607 - 2620
[2] Patent: WO2007/16525, 2007, A2. Location in patent: Page/Page column 50
[3] Patent: US2013/281396, 2013, A1. Location in patent: Paragraph 0310
[4] Patent: WO2018/52903, 2018, A1. Location in patent: Page/Page column 70-71

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