Sodium hydride → ethyl (E)-3-[1-(1-methylethyl)-1,2,3,4-tetrahydroquinolin-6-yl]-2-fluoro-2-butenoate

450 mg (60%, 12 mmol) of sodium hydride was suspended in 10 ml of N,N-dimethylformamide. 3.3. g (14 mmol) of ethyl 2-fluoro-diethylphosphonoacetate was dropped into the suspension under cooling with ice. The obtained mixture was stirred under cooling with ice for 30 minutes, followed by the addition of 2.0 g (9.2 mmol) of 1-[1-(1-methylethyl)-1,2,3,4-tetrahydroquinolin-6-yl)ethanone. The obtained mixture was stirred under cooling with ice for onie hour, followed by the addition of an aqueous solution of ammonium chloride. The obtained mixture was extracted with ethyl acetate, and the organic phase was washed with a saturated aqueous solution of common salt, dried over anhydrous magnesium sulfate and concentrated in a vacuum. The residue was purified by silica gel column chromatography to give 2.3 g of the title compound as a colorless oil.

1. temperatureunder cooling with ice
2. temperatureunder cooling with ice for 30 minutes
3. stirringThe obtained mixture was stirred
4. temperatureunder cooling with ice for onie hour
5. extractionThe obtained mixture was extracted with ethyl acetate
6. washthe organic phase was washed with a saturated aqueous solution of common salt
7. dry with materialdried over anhydrous magnesium sulfate
8. concentrationconcentrated in a vacuum
9. customThe residue was purified by silica gel column chromatography

ORD 기록

ord-79a76c057554427db6f31c7905268ced

출처 데이터셋

uspto-grants-2001_09

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US06291508B1