Hydrochloric Acid → Hydrochloric Acid

반응식

C[O:2][C:3]([C@@H:5]([NH2:12])[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1)=[O:4].[ClH:13]>>[CH:9]1[CH:8]=[CH:7][C:6]([C@H:5]([NH2:12])[C:3]([OH:4])=[O:2])=[CH:11][CH:10]=1.[ClH:13]

참가 물질

반응물 2

HCID 313Hydrochloric Acid

HCID 1201451Methyl phenylglycinate, L-

생성물 2

HCID 313Hydrochloric Acid

HCID 99291L-Phenylglycine

실험 절차

A solution of methyl L-phenylglycinate (-)-hemitartrate mono-ethanol solvate ([α]D + 62.4°, 36.888 g., 0.102 mole) in 6N-hydrochloric acid (68 ml., 0.408 mole, 4 equiv.) was refluxed for 1 hour 10 minutes and then distilled for 15 minutes. Water (68 ml.) was added and the pH of the warm solution adjusted to 7.0 with ammonium hydroxide solution (0.880, 35 ml.). The mixture was cooled in ice, filtered, and the solid was washed with water (2 × 25 ml.) and ethanol (25 ml.) and dried over phosphorus pentoxide to give L-phenylglycine as white plates (13.406 g., 87%), [α]D21 + 152.1° (c 1.007, 1N-HCl).