Aminoisobutyric acid → HCID 22313664, compound

Participants

Reaction Steps

To a solution of 2-(chlorocarbonyl)phenyl acetate (20 mmol, 3.96 g) in toluene (50 ml) were N-ethyl-N,N-diisopropylamine (22 mmol, 2.84 g) and 2-methylalanine (22 mmol, 2.27 g) added. After stirring the reaction mixture at room temperature overnight, the mixture was diluted with 250 ml toluene and was washed with 1.8% HCl/aq (250 ml) and sat. NaCl/aq (250 ml). The organic phase was dried over Na2SO4 and concentrated under reduced pressure. The residue was dissolved in MeOH (50 mL) and 3 drops of conc. H2SO4 were added. The mixture was refluxed for 2 hours and concentrated under reduced pressure. The residue was dissolved in 250 mL EtOAc and washed with sat. NaHCO3/aq (250 ml) and sat. NaCl/aq (250 ml). The organic phase was dried over Na2SO4 and concentrated at reduced pressure. The resulting crude material was used without further purification.

Provenance & Evidence