Réaction #803710

Équation de réaction

HCl

D-(−)-α-Phenylglycine

NaHCO3

methylchloroformate

→

compound 31

Rendement 80.0%

(R)-methoxycarbonylamino-phenyl-acetic acid

Rendement 80.0%

Solvants

tetrahydrofuran

water

Conditions de réaction

Traitement

1. 1
   Concentrationthe volatile was concentrated in vacuo
2. 2
   ExtractionThe aqueous layer was extracted with ethyl acetate
3. 3
   Séchagethe organic layer was dried over MgSO4
4. 4
   Filtrationfiltered
5. 5
   Concentrationconcentrated in vacuo

Mode opératoire

D-(−)-α-Phenylglycine (0.165 mmol) was dissolved in tetrahydrofuran (500 mL), followed by the addition of NaHCO3 (0.496 mmol) in water (500 mL), and then the addition of methylchloroformate (0.182 mmol) at room temperature. The reaction mixture was stirred at room temperature overnight. The mixture was acidified to pH=3 with HCl (1N) and the volatile was concentrated in vacuo. The aqueous layer was extracted with ethyl acetate and the organic layer was dried over MgSO4, filtered, and concentrated in vacuo to give compound 31 as a pale yellow solid in 80% yield. MS (ESI, EI+) m/z=209 (MH+).

Source