2-Methoxyethanol → HCID 6485752, compound

2-Methoxyethanol (219 mg, 2.88 mmol) was dissolved in THF (6 mL), and sodium hydride (60%, 39 mg, 0.96 mmol) was added thereto. The mixture was stirred at room temperature for 10 minutes, and 2-fluoro-5-nitrobenzotrifluoride (200 mg, 0.96 mmol) was added thereto. The resulting mixture was heated at 60° C. for 5 hours. The reaction solution was poured in a saturated sodium bicarbonate solution and extracted with ethyl acetate and washed with saturated brine. To the organic layer, 10% palladium carbon (20 mg) and methanol (2 mL) were added. The resulting mixture was stirred under hydrogen atmosphere at atmospheric pressure at room temperature for 16 hours. The catalyst was removed by filtration, and the filtrate was concentrated. The residue was purified by silica-gel column chromatography (n-hexane:ethyl acetate=5:1) to give the desired material (170 mg, yield: 76%) as a yellow oil.

1. temperatureThe resulting mixture was heated at 60° C. for 5 hours
2. extractionextracted with ethyl acetate
3. washwashed with saturated brine
4. additionTo the organic layer, 10% palladium carbon (20 mg) and methanol (2 mL) were added
5. stirringThe resulting mixture was stirred under hydrogen atmosphere at atmospheric pressure at room temperature for 16 hours
6. customThe catalyst was removed by filtration
7. concentrationthe filtrate was concentrated
8. customThe residue was purified by silica-gel column chromatography (n-hexane:ethyl acetate=5:1)

ORD record

ord-c67e660f1b37484dbfce655d885d9e05

Source dataset

uspto-grants-2012_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08299252B2