2-Acetamido-5-phenylpentanoic acid → 2-Amino-5-phenylpentanoic acid
反応式
C([NH:4][CH:5]([CH2:9][CH2:10][CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[C:6]([OH:8])=[O:7])(=O)C>Cl.O>[NH2:4][CH:5]([CH2:9][CH2:10][CH2:11][C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1)[C:6]([OH:8])=[O:7]参加物
4
実験手順
A stirred suspension of (±)-2-(acetylamino)-5-phenyl-pentanoic acid (0.5003 g, 0.002126 mol) in 2.8 M hydrochloric acid was refluxed for 2 hours, and the resulting brown solution was allowed to cool. A tan precipitate formed upon cooling. The solids were filtered off, and the filtrate was rotary evaporated to give a yellow gum. The gum was dissolved in hot water, gravity filtered, and allowed to cool. The mixture was made basic with 1 M sodium hydroxide to pH=5. The resulting precipitate was filtered off, washed with water, and dried in vacuo to give a yellow solid; yield 0.205 g (50%), mp=213-215° C.