Reacción #85670

Ecuación de reacción

EtOAc heptane

(S)-tert-butyl 1-(3-fluoro-4-(methoxy(methyl)carbamoyl)phenyl)ethylcarbamate

LAH

→

(S)-tert-butyl 1-(3-fluoro-4-formylphenyl)ethylcarbamate

Rendimiento 79.0%

Disolventes

THF

THF

Condiciones de reacción

Tratamiento posterior

1. 1
   OtroThe reaction mixture was quenched by addition of a saturated Na2SO4 solution until gas evolution
2. 2
   ExtracciónThe reaction mixture was extracted with EtOAc (2×100 mL)
3. 3
   SecadoCombined organics were dried over Na2SO4
4. 4
   Filtraciónfiltered
5. 5
   Concentraciónconcentrated

Procedimiento

To a cooled (0° C.) solution of (S)-tert-butyl 1-(3-fluoro-4-(methoxy(methyl)carbamoyl)phenyl)ethylcarbamate (1.175 g, 3.6 mmol) in THF (36 mL) was added a solution of LAH in THF (1.0 M, 18 mL, 18 mmol) and the resulting mixture was stirred at 0° C. for 20 min. The reaction mixture was quenched by addition of a saturated Na2SO4 solution until gas evolution ceased. The reaction mixture was extracted with EtOAc (2×100 mL). Combined organics were dried over Na2SO4, filtered and concentrated. Silica gel column chromatography (EtOAc/heptane 12 to 100%) provided (S)-tert-butyl 1-(3-fluoro-4-formylphenyl)ethylcarbamate as a white solid (760 mg, 79% yield).

Fuente