Benzene → isopropyl (2RS,3S)-3-amino-2-hydroxy-5-methylhexanoate hydrochloride

Reaktionsgleichung

[ClH:1].[NH2:2][C@@H:3]([CH2:9][CH:10]([CH3:12])[CH3:11])[CH:4]([OH:8])[C:5]([OH:7])=[O:6].[CH:13]1[CH:18]=CC=C[CH:14]=1>C(O)(C)C>[ClH:1].[NH2:2][C@@H:3]([CH2:9][CH:10]([CH3:12])[CH3:11])[CH:4]([OH:8])[C:5]([O:7][CH:13]([CH3:18])[CH3:14])=[O:6]

Komponenten

Versuchsvorschrift

Hydrogen chloride was passed into a solution of 4.0 g of (2RS,3S)-3-amino-2-hydroxy-5-methylhexanoic acid in 50 ml of isopropanol was stirring under ice-cooling, and to the reaction mixture was 100 ml of dry benzene. The mixture was heated under reflux for 10 minutes while removing water formed during the reaction. The reaction mixture was concentrated under reduced pressure to obtain 5.7 g of isopropyl (2RS,3S)-3-amino-2-hydroxy-5-methylhexanoate hydrochloride as a white powder.