Reacción #41382

Ecuación de reacción

(S)-tert-butyl 1-(methoxy(methyl)amino)-1-oxopentan-2-ylcarbamate

Phenylmagnesium bromide

ammonium chloride

ethyl acetate

→

(S)-tert-butyl 1-oxo-1-phenylpentan-2-ylcarbamate

Disolventes

THF

THF

Condiciones de reacción

Tratamiento posterior

1. 1
   OtroIn a 50 mL round-bottomed flask was
2. 2
   workup.STIRRINGThe mixture was shaken
3. 3
   Otrothe layers separated
4. 4
   LavadoThe water layer was washed twice with ethyl acetate
5. 5
   LavadoThe combined organic layers were washed once with a small portion of water
6. 6
   Secadodried over sodium sulphate
7. 7
   OtroThe solvent was evaporated
8. 8
   Otrothe crude product was purified by flash chromatography

Procedimiento

In a 50 mL round-bottomed flask was (S)-tert-butyl 1-(methoxy(methyl)amino)-1-oxopentan-2-ylcarbamate (91d, 250 mg, 0.96 mmol) dissolved in THF (9.6 ml). Phenylmagnesium bromide (2.88 ml, 2.88 mmol) 1.0 M in THF was added. The reaction was stirred at r.t. for 5 h. The reaction was poured into a mixture of saturated ammonium chloride and ethyl acetate. The mixture was shaken and the layers separated. The water layer was washed twice with ethyl acetate. The combined organic layers were washed once with a small portion of water and dried over sodium sulphate. The solvent was evaporated and the crude product was purified by flash chromatography.

Fuente