Methyl iodide → N-(2-Methoxy-5-nitro-phenyl)-N-methyl-propionamide

Temperatur

0 °C

To a stirred solution of 11.2 g (50.0 mmol) of (2) in 150 mL of anhydrous THF at 0° C. under the nitrogen, was added 3.0 g (75 mmol) of NaH (60% in oil). The suspension was stirred for 0.5 h at 0° C. and 10 mL (150 mmol) of iodomethane was added at 0° C. After the mixture warmed to room temperature and stirred for 3 h, the reaction was quenched by ice brine and extracted with EtOAc (200 mL). The organic phase was washed with brine, dried (Na2SO4), filtered, evaporated in vacuo and the solid was washed with hexane/EtOAc (9:1) to give pure product N-(2-Methoxy-5-nitro-phenyl)-N-methyl-propionamide (3) as a light yellow solid (11.3 g, 95% yield).

1. temperatureAfter the mixture warmed to room temperature
2. stirringstirred for 3 h
3. customthe reaction was quenched by ice brine
4. extractionextracted with EtOAc (200 mL)
5. washThe organic phase was washed with brine
6. dry with materialdried (Na2SO4)
7. filtrationfiltered
8. customevaporated in vacuo
9. washthe solid was washed with hexane/EtOAc (9:1)

ORD-Eintrag

ord-59ff6f68e6c443fbba72cf7dcb37dadf

Quelldatensatz

uspto-grants-2014_02

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08648104B2