Ethanol → 473693-84-4

To a suspension of 6-chloronicotinamide (1.50 g) in ethanol (30 ml) was added sodium hydride (1.88 g, 60% mineral oil), and the mixture was stirred at room temperature for 24 hours. Another portion of sodium hydride (940 mg, 60% mineral oil) was added to the mixture, and the resulting mixture was stirred at room temperature for 24 hours followed by refluxing for 4.5 hours. Then, the reaction mixture was cooled, a saturated aqueous ammonium chloride solution was added thereto and the mixture was extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate and the solvent was removed under reduced pressure. The residue was triturated with diethyl ether to obtain 6-ethoxynicotinamide (1.05 g) as colorless powder.

1. stirringthe resulting mixture was stirred at room temperature for 24 hours
2. temperatureby refluxing for 4.5 hours
3. temperatureThen, the reaction mixture was cooled
4. extractionthe mixture was extracted with ethyl acetate
5. washThe organic layer was washed with brine
6. dry with materialdried over anhydrous sodium sulfate
7. customthe solvent was removed under reduced pressure
8. customThe residue was triturated with diethyl ether

ORDレコード

ord-e52bd5711aa846cb8911976126404e40

出典データセット

uspto-grants-2010_07

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US07759373B2