Dl-Phenylalanine → 2-[(Methoxycarbonyl)amino]-3-phenylpropanoic acid

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

2-Amino-3-phenyl-propionic acid (1.65 g) was dissolved in 1 N NaOH (10 mL), and Na2CO3 (530 mg) was added. The mixture was cooled to 0° C. and methyl chloroformate was added slowly, and then stirred for overnight at room temperature. The mixture was washed with DCM and acidified with 3 mL of 2N HCl, and then was taken up in ether (200 mL). The organic phase was dried over sodium sulfate. Removing the solvent to give 2-Methoxycarbonylamino-3-phenyl-propionic acid (1.95 g, 87%) as an off-white solid.

Herkunft & Nachweise